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  • Fisheries  (326)
  • Cell & Developmental Biology
  • General Chemistry
  • Public health
  • Marine Fisheries Research Department, Southeast Asian Fisheries Development Center  (183)
  • Lagos (Nigeria)  (144)
  • 101
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    Detoxification of Pyrodinium-generated paralytic shellfish poisoning toxin in Perna viridis from Western Samar, Philippines (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26882 | 23782 | 2019-11-05 02:34:08 | 26882 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The results are presented of procedures for the detoxification of paralytic shellfish poisoning toxin using ozone, chlorine and PVP-iodine. Findings indicate ozone and PVP-iodine to effectively inactivate the toxins isolated from Perna viridis; however, further investigations are recommended.
    Keywords: Fisheries ; Health ; Biological poisons ; Red tides ; Public health ; Philippines ; Pyrodinium ; Perna viridis
    Repository Name: AquaDocs
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    Format: 80-85
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  • 102
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    Indo-Pacific toxic red-tide occurrences, 1972-1984 (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26886 | 23782 | 2019-11-05 02:20:40 | 26886 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: A brief review is made of the incidences of red tides and paralytic shellfish poisoning in the Indo-Pacific region during the period 1972-84, indicating the organisms involved in the toxicity.
    Keywords: Fisheries ; Health ; Biological poisons ; Public health ; Red tides ; Shellfish ; Dangerous organisms ; Indo Pacific Ocean
    Repository Name: AquaDocs
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    Format: 92-102
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  • 103
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    Shellfish poisoning in Japanese waters (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26887 | 23782 | 2019-11-05 02:16:53 | 26887 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Under the supervision of the Fisheries Agency, each prefectural government has the responsibility of carrying out monitoring programs. Although some problems exist, monitoring operations have been proceeding successfully. Investigations concerning various aspects of shellfish poisoning are being conducted by 6 national institutions, 15 universities, and about 30 fisheries laboratories. Because shellfish poisoning is a kind of natural phenomenon, the only defense is the establishment of precise monitoring techniques to reduce damages. Efforts to improve monitoring, however, need to be carried out through fundamental research.
    Keywords: Fisheries ; Health ; Monitoring ; Public health ; Red tides ; Shellfish ; Dangerous organisms ; Japan
    Repository Name: AquaDocs
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    Format: 105-109
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  • 104
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    A summary of paralytic shellfish poisoning in Canada (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26888 | 23782 | 2019-11-05 02:16:11 | 26888 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Paralytic shellfish poisoning occurs along both the east and west coasts of Canada. Since 1973 there have been more than 300 documented cases of paralytic shellfish poisoning, resulting in about 35 deaths. Causative dinoflagellates include Gonyaulax catenella, G. acatenella and G. excavata. Details are given of shellfish contamination, toxic blooms patterns, toxicity monitoring, impact on shellfish industry and detoxification.
    Keywords: Fisheries ; Health ; Historical account ; Public health ; Red tides ; Shellfish ; Dangerous organisms ; Canada ; Gonyaulax
    Repository Name: AquaDocs
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    Format: 110-113
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  • 105
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    Status of shellfish toxicity in Singapore (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26883 | 23782 | 2019-11-05 02:28:34 | 26883 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: No incidence of shellfish toxicity related to red tides has been recorded in Singapore to date. Only one species of dinoflagellate, Cochlodinium catenatum, has been found dominant in some of the phytoplankton blooms reported. Monitoring is regularly carried out in the waters along Johore Strait for paralytic shellfish poisoning on a fortnightly basis.
    Keywords: Fisheries ; Health ; Shellfish ; Quality assurance ; Red tides ; Singapore
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    Format: 86
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  • 106
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    Acute toxicity of 2, 3-dichlorovinyl dimethyl phosphate (Sniper 1000EC) and response of Clarias gariepinus Burchell under laboratory conditions (2021)
    Lagos (Nigeria) | FISON
    In:  http://aquaticcommons.org/id/eprint/24215 | 19325 | 2018-05-19 06:53:11 | 24215 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The study investigated the acute toxicity of 2, 3-dicholrovinyl dimethyl phosphate (Sniper 1000EC) on the African mud catfish, Clarias gariepinus juveniles (mean weight 19.47 ~c 1.05g) using static bioassay method. Sniper 1000EC is an organophosphate pesticide. Each treatment in the acute test was in triplicate with bioassay media concentration of 0,5, 10, 15 and 20 mg/l. Data on mortalities of fish, water physic-chemical parameters as well as changes in haematological indices were subjected to one way analysis of variance (ANOVA) at 5% probability level. Duncan multiple range test was used to separate differences between the means. The 96hr LC50 estimated by probit analysis during the exposure was found to be 8.20mg/l. Behavioural abnormalities of the exposed fish included erratic and uncoordinated swimming and bleached skin with lesion at the highest concentration (20mg/l). Blood dyscrasias attributable to the toxicant was observed with a significant (p〈0.05) decrease in haemoglobin, haematocrit, red blood cells, white blood cells, lymphocytes and monocytes. Mean corpuscular volume (MCV), Mean corpuscular haemoglobin (MCH), neutrophils, eosinophil and basophil increased significantly (p〈0.05) with increasing concentrations of the toxicant. These abnormalities in body and blood parameters as a result of exposure to the toxicant make the study to recommend that the use of Sniper 1000EC by local fishermen be banned to preserve aquatic lives in Nigerian inland water bodies.
    Description: Includes: 22 references.
    Keywords: Fisheries ; Pollution ; Clarias gariepinus ; Nigeria ; Niger State ; Sniper 1000EC ; Clarias gariepinus ; Toxicity ; Haematological indeces ; freshwater environment ; Toxicity ; Phosphate deposits ; Response analysis ; Freshwater fish ; Juveniles ; Bioassays ; Toxicity tests ; Physicochemical properties ; Controlled conditions ; Haematology ; Pollution monitoring
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    Format: 250-253
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  • 107
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    Potential impact of climate change on fisheries and aquaculture in Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24584 | 19325 | 2018-05-20 15:57:28 | 24584 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: Climate change will have significant impacts on Nigeria's freshwater and marine aquatic systems. and hence on the countries fisheries and aquaculture. Fisheries and aquaculture are highly vulnerable to changes in weather pattern. and the impacts, which could be negative or positive, will vary from the coastal areas to the drier northern parts of the country. Elevated water temperalures will affect fish physiological processes, thereby affecting spawning. survival of the juveniles, recruit into the exploitable phase of population, population size, production and yield. The impacts of increased flooding of the freswater bodies will be negative through erosion of watershed, destruction of fish feeding and breeding habitats, decrease in primary productivity and alteration of the normal resilience of the aquatic systems, or positive in expansion of aquatic habitats for primary and fish productions especially during the dry season. Drought will exacerbate draw down of the lakes and reservoirs, and insufficient flow in the river hasins for spawning and primary pro duction thereby affecting fish production. Rise in the water level of the Atlantic ocean will lead to intrusion of more salty wafer into The river delta areas, and inundation of the coastal low-lying areas, thus affecting distribution of both the freshwater and marine fishes as a result of changes in the physical and chemical properties of the waters. The impacts will ultimately affect fish population, production and supply, thereby affecting the livelihood of over 26 million people engaged in the primary and secondary sectors of the fisheries industry, as well as food security of the country. The adaptation and mitigation strategies will be based on the peculiar characteristics and interactions of fisheries and aquaculture within the framework of feasible policy instruments. Strategies and policy measures need to be evolved to combat the observable and projected impacts of climate change on fisheries and aquaculture, in order to protect the livelihoods of the fishing communities and food security.
    Description: Includes: 13 references.
    Keywords: Atmospheric Sciences ; Aquaculture ; Fisheries ; Nigeria ; Climate change ; Fisheries ; Aquaculture ; Impacts ; Mitigation ; Food security ; freshwater environment ; automation
    Repository Name: AquaDocs
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    Format: 76-80
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  • 108
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    Benefit related relationship among artisanal fisher folks of Tombo fish landing community (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24603 | 19325 | 2018-05-21 12:20:04 | 24603 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: Benefit related relationship among the artisanal fisher folks of Tomho, a fishing community in Western Rural District of Sierra Leone was studied. The study was carried out to ascertain the socioeconomic activities of the target group, their level of involvement and reasons for going into transactional sexual activities. Eighty (80) structured questionnaires were administered to randomly selected fishermen and people engaged in fish related activities and this was backed up hy the record of HIV cases especially among women at tht Tombo Community Health Centre. Data collected from the interview were treated using measure of central tendency such mean and percentages and results are presented in tables and charts. Respondents age ranged between 15-65 years; sex (fishermen to fish traders) was 71.3% (female) and 28.75% (males) respectively. Marital status of respondents was single, married, divorced, seperated and widowed. Predominant religion of repondents was Islam and Christianity. The study revealed that transactional sex in the study area is mediated by economic structural and environmental factors. The study also revealed that 70.12% of documented HIV cases at the Tombo Community Health Centre were female, while 29.87% were male between the active age of 15-55 years. Fish traders (68.8%) constituted the highest carriers of HIV in the study area.
    Description: Includes: 9 references.
    Keywords: Fisheries ; Sociology ; Nigeria ; Tombo ; Fishing communitu ; Transactional sex ; Socio-economic ; Community health Centre ; freshwater environment ; automation
    Repository Name: AquaDocs
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    Format: 146-149
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  • 109
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    Impact of water hyacinth (Eichhornia crassipes) on fish catch in the lower Taylor Creek area of Bayelsa State (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24605 | 19325 | 2018-05-21 12:24:48 | 24605 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The aim of the study was to access the impact of water hyacinth, Eichhornia crassipes on fish catch in the lower Taylor Creek area of Bayelsa State. The experimental approach involved the division of the creek into new stations: infested and non-infested at the littoral zone. Subsequently, the deployment of six Malian traps with dimensions of 70cm diameter and 80cm height were set in each station for a period of six months using groudnut cake as bails. Furthermore, fish caught were counted and identified into families and species. From results, fish species composition obtained from the stations were a total of 9 families and 15 species. However, it was observed that the water hyacinth infested area had the lowest fish catch while the non-infestated area had the highest number of fish catch for both dry and wet season. It is therefore concluded that the invasion of Eichhornia crassipes impacted on fish population and composition.
    Description: Includes: 12 references.
    Keywords: Ecology ; Fisheries ; Nigeria ; Eichhornia crassipes ; Fish catch ; Taylor creek ; Bayelsa ; freshwater environment ; automation
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    Format: 153-155
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  • 110
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    Assessment of heavy metals in water and fish from Ibrahim Adamu Lake, Jigawa, Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24612 | 19325 | 2018-05-22 05:59:44 | 24612 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The study was conducted to assess the levels of heavy metals in water and the flesh of tilapia (Oreochromis niloticus). Water and tilapia were sampled for a period of 12 months from October, 2003-september 2004. Water and muscle tissue were analysed for Cu, Cr, pb, and Zn using flame atomic absorption spectrophotometer. The assessment showed Cr (3.35mg/l), Cu (0.75mg/l), pb (0.81mg/l) in water while Cr(2.27mg/kg) and pb (0.27mg/kg) were found to be high in the tissue samples and were above the values recommended by WHO and the Food and Agricultural Organization (FAO)of the United Nations and therefore not safe for human consumption.
    Description: Includes: 17 references.
    Keywords: Fisheries ; Pollution ; Oreochromis niloticus ; Nigeria ; Heavy metals ; Oreochromis niloticus ; Atomic absorption ; Spectrophotometer ; freshwater environment ; automation
    Repository Name: AquaDocs
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    Format: 179-181
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  • 111
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    Survey of physical characteristics of the upper reaches of new Calabar River, Niger Delta, Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24618 | 19325 | 2018-05-22 06:12:36 | 24618 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: One of the priority research projects of the Nigerian Institute for Oceanography and Marine Research (NIOMR) is broodstock development and mass propagation of silver catfish, Chrysichthys nigrodigitatus of which the broodstock is naturally abundant in New Gala River. Selected physical characteristics and water physico-chemical parameters of the upper reach of the New Calabar River at Aluu were investigated. The highest depth value of 9.20 m was recorded in the middle of the river. The width of the river measured during spring high tide and low tide were 174 m and 110 m respectively. The cross-sectional area and average flow velocity of the river were 797.13 m2 and 0.374 m/s respectively. The discharge of the river was computed as 298.13m3/s. The river water was acidic most of the period (Hydrogen ion concentration, pH: 5.12 to 7.43), with low total alkalinity values (4.00 to 12.00 mgCaCO3/L) and low total hardness values (11.5 to 51.2 mgCaCO3/L) which indicate that the river water is black and soft. There was significant (p~,0.05) seasonal variation in temperature (23.1 to 31.7~'C\}, Secchi transparency (9.30 to 19.00 cm), total hardness (11.5 to 51.2 mgCaCO3/L), dissolved oxygen (5.20 to 7.50 mg/L) and dissolved oxygen deficit (0.02 to 2.95mg/L). These results are useful for several stake holders who use the river as a sink for trade wastes, as source of water for fish farming, as source of broodstocks of Chrysichthys nigrodigitatus, as raw water for water treatment plants, and as means of transportation of industrial materials.
    Description: Includes: 16 references.
    Keywords: Chemistry ; Fisheries ; Limnology ; Chrysichthys nigrodigitatus ; Nigeria ; New Calabar River ; New calabar River ; Physical characteristics and physico-chemical features ; Seasonal variation ; freshwater environment ; automation
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    Format: 206-210
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  • 112
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    Physico-chemical parameters in relation to fish production of Dadin Kowa Dam, Gombe State, Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24619 | 19325 | 2018-05-22 06:14:16 | 24619 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: Eight month physicochemical study of Dadin Kowa Dam was carried out forthnightly from July, 2011 to february 2012. Air temperature ranged from 18.25~'C ~c 28~'C ~c 0.50 to 28~'C ~c 2.16. Water tmperature ranged from 18.75~'C ~c 2.21. Transparency ranged from 11.00cm ~c 1.83 to 29.63 cm ~c ~c 2.14. Conductivity ranged from 13.00~Ks/cm ~c 13.33 to 41.38~Ks/cm ~c 5.54. Hydrogen ion (pH) ranged from 6.69 ~c 1.03 to 8.39 ~c 1.17. Dissolved oxygen ranged from 6.39mg/l ~c 1.03 to 10.14mg/l ~c 1.17. Total alkalinity ranged from o.69mg/l ~c 0.38 1.34mb/l ~c 0.02. Total ammonia ranged from 0.20mg/l ~c 0.027 to 0.83mg/l ~c 0.05. There were various levels of correlation between these parameters. There was no significant difference between both sites and months (p〉0.05) of all the parameters except total nitrogen which show a significant difference between the sites (p〈0.05) and transparency also shows a significance between the months (p〈0.05). All physicochemical parameters were almost within the tolerable limits for supporting aquatic life.
    Description: Includes: 27 references.
    Keywords: Fisheries ; Chemistry ; Nigeria ; Dadin Kowa Dam ; Physico-chemical parameters ; Fish production ; Dadin Kowa Dam ; freshwater environment ; automation
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    Format: 211-213
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  • 113
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    Genetic status of tilapia at Badore landing site using RAPD markers (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24620 | 19325 | 2018-05-22 06:15:41 | 24620 | Fisheries Society of Nigeria
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    Publication Date: 2021-07-15
    Description: Molecular technique based on Random Amplified Polymorphic DNA (RAPD) analysis was applied to study genetic status among tilapia species from Badore landing site of Lekki lagoon. Individual variations within species population were assessed using PCR-RAP analysis with five Operon primers (OPC04, OPA02, OPB08, OPE02 and OPF03, Operon Technologies Inc, USA) which revealed dif ferent banding patterns of varying primer reproducibility. Graphical representation using UPGMA cluster analysis produced a dendrogram chart with five clusters (~f, ~e, ~p ,~S, and ~W) indicating different degrees of variations and similarities. There were various levels of genetic similarity observed possibly due to hybridization. Nevertheless, few distinct variations among the samples were visible, show ing possible genetic variability. At 0.89 (89%) coefficient, cluster,~f is made up of 7 samples which are genetically similar. At 0.834 (83.1 %) coefficient, distinct sample BTl2 forms a cluster (~p) with cluster ~f which shows they are related at this coefficient. Cluster ~W (84% coefficient) comprising of 7 samples forms another cluster with a distinct sample BT06 at about 0.79 coefficients. At 78.6% coefficient (cluster ~e). All the samples are genetically similar except sample BT17. This distinct sample can increase genetic variability by a cross between it and other strains of tilapia. Therefore, care should be taken by fish farmers who buy or use the fish samples from this landing site for culture. Proper molecular characterization of this fish species before culture becomes necessary to avoid genetic problems.
    Description: Includes: 17 references.
    Keywords: Biology ; Fisheries ; Nigeria ; Genetic ; Tilapia ; RAPD ; Badore ; freshwater environment ; automation
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    Format: 214-216
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  • 114
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    Preliminary investigation of fish species abundance of Otammiri River, Owerri, Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24626 | 19325 | 2018-05-22 06:25:03 | 24626 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: A study of fish species abundance of Otammiri River, Owerri, Nigeria was conducted from April to August, 2012. Four hundred and three (403)fishes belonging to 10 families, 16 genera and 21 species were collected from artisanal fishers using various fishing gears. The fish samples were taken to laboratory, identified, counted and their weights and lengths measured. The unnamed cichlid species ranked highest in percentage number and weight as well as Index of Preponderance (38.7%, 33.6% and 51.1% respectively), while the least were Polycentropis abbreviata, Hepsetus odoe, Synodontis omias, Chrysichthys aluensis and Chrysichthys furcatus each constituting 0.2% of the total number of fish collected. Among fish families, Cichlidae ranked highest in percentage number (82.63%) and weight (81.2%), followed by Hepsetidae (5. 7% and 8.0%) and Anabantidae (4.47% and 2.8% respectively). The least were Characidae, Notopteridae and Mochokidae. The presence of an unnamed fish species in the river is an indication that there could be more unknown aquatic living resources with strong potential benefits to the River. The information provided in this study reflects the potential of the fish resources of Otammiri. This will serve as invaluable baseline tool in fisheries management planning and policy formulations that will enhance the development of fisheries in the area.
    Description: Includes: 15 references.
    Keywords: Ecology ; Fisheries ; Polycentropsis abbreviata ; Hepsetus odoe ; Synodontis omias ; Chrysichthys aluensis ; Chrysichthys furcatus ; Nigeria ; Otammiri River ; Index of preponderance ; Fisheries management ; Otammiri River ; freshwater environment ; automation
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  • 115
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    Fecundity, gonadosomic index and spawning period of Chrysichthys nigrodigitatus of the Lower Cross River, Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24629 | 19325 | 2018-05-22 06:30:19 | 24629 | Fisheries Society of Nigeria
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    Publication Date: 2021-07-15
    Description: The estuarine catfish, Chrysichthys nigrodigitatus, is a prized food fish in Nigeria especially in the Niger Delta region. There is a growing concernrn over the sustainability of the fishery in the face of climate change and environmental variability. Studies were conducted on the fecundity, gonadosomatic index and the spawning period of the species. The objectives were to determine the average fecundity of the species and to use the gonadosomatic index to determine its spawning period with the aim of proffering management advice and prerequisites of the species in the face of climate change. A total of 44 females and 40 males were used for the study which spanned the period from May 2011 to April 2012. The fecundity of the species ranged from 3,730.5 eggs to 41,535.9 eggs. There was correlation between the total fecundity and fish weight (p~,01, r= 0.80, n= 44). The regression model for the relationship was expressed as fecundity = 4660.8+4.76 weight. The gonadosomatic index was highest in the month of May and dropped sharply in june signifying that spawning in Chrysichthys nigrodigitatus starts around this period. The implications of these findings in respect to sustainability of the species, and its aquaculture in the face of climate change are discussed.
    Description: Includes: 14 references.
    Keywords: Fisheries ; Atmospheric Sciences ; Chrysichythys nigrodigitatus ; Nigeria ; Lower Cross River ; C. nigrodigitatus ; Reproduction ; Climate change ; Cross Rivber ; Sustainability ; freshwater environment ; automation
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  • 116
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    Fish processing technologies in Eti-Osa Local Government Area of Lagos State, Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24671 | 19325 | 2018-05-23 07:46:56 | 24671 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: Traditional fish processing technologies vary widely in terms of equipment type, size and processing efficiency in Nigeria's coastal states. This study was carried out to identify fish processing technologies and evaluate the effectiveness, energy sources and efficiency of fish smoking equipment in use in the study area. Data were collected using structured questionnaire administered between January and March, 2011 in seven fishing villages along the coastline in the lbeju-Lekki LGA, Nigeria. Major fish species being processed were identified; and the profitability of the post harvest technologies adopted was evaluated. A total of five traditional fish processing equipment were observed; and included galvanized iron sheet supported by planks 51 (46.4%); drum oven 8 (7.2%); black clay oven 24 (21.8%); red clay oven 9 (8.1%); brick kiln 5 (4.2%) and government model kiln 4 (3.5%). Generally, energy sources were fuel wood and charcoal for traditional fish processing equipment; and electricity for the government model kiln. Majority of traditional fish processors were peasant women; and three types of processing technologies were observed, including air drying (1.0%), hot smoking 169.1%); and salting and smoking (29.9%). The capacity of kilns and ovens observed ranged from 20 to 50kg daily with a price range of Nl0,000 to N50,000. Factors considered before replacement of smoking equipment by the processors were equipment ruggedness, cost and production capacity. Women's involvement in traditional fish processing was 95%; and major fish species in the value chain included Ethmalosa fimbriata, Caranx senegallus, Sardinella maderensis,Drepane africana, Cynoglossus monodis, Pseudotolithus megalensis, P. typus, Arius latiscutatus and A. mercatoris. It was observed that products of traditional fish processing industry were readily acceptable to consumers and commanded marginal market prices with optimal economic benefits to processors.
    Description: Includes: 25 references.
    Keywords: Fisheries ; Nigeria ; Fish value chain ; Coastline ; Processors ; Women ; Traditional fish processing equipment ; freshwater environment ; automation
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  • 117
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    Fisher folk's response to climate change in New Bussa and its environs of Kainji Lake Basin, Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24661 | 19325 | 2018-05-27 14:57:38 | 24661 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The study examined fisher folk responses to climate change in Kainji lake basin. The sample comprises of fisher folks within and New Bussa. Eighty questionnaires were administered to obtain the primary data and analysed using descriptive and inferential statistical tools. The results revealed that majority (70%) of the respondent were male, however (61.2%) of them had tertiary education. Majority (60%) of the respondents were aware of changes in climate in the area. Majority (65%) and (55%) of the respondents were involved in incidence of deforestation and charcoal production respectively. In conclusion, it was discovered that little knowledge about climate change and its effects were found among fisher folk. Therefore it recommends that sensitization workshops/lectures be done to enable the fisher folk have adequate knowledge on climate change and the implications on fisheries activities in the basin.
    Description: includes: 11 references.
    Keywords: Pollution ; Fisheries ; Nigeria ; Climate change ; Fisher folk ; Fishing community ; Awareness ; freshwater environment ; automation
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 380-384
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    Public relations and extension services in Nigerian fisheries industry (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24663 | 19325 | 2018-05-27 14:59:47 | 24663 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The paper discussed the importance of fish as a food commodity and the rich icthyofauna resources of Nigerian territorial which has not been optimally utilized to be sustainable. Among the challenges facing the fisheries subsector of Nigerian economomy apart from overfishing, poor post-harvest technology and high incidence of sea piracy is poor level of communications, public relations, restricted access to extension services especially to the rural artisanal fisherfolks/fish farmers in Nigeria . This has been identified as contributory to the increasing shortfall between demand and supply of fish in Nigeria. There is a need/or a good public image fisheries concerns. Production and marketing personnel need to respect the wishes of the consumers and have good interpersonal relationships. Communication should be a 2-way affair between the extension officers and the fisherfolks in the rural communities to be achieved. The various media that could aid better dissemination in the Fisheries subsector were highlighted. The author recommended better funding, training of extensionists and target audience, improved public sensitization of rural practitioners to fish output. There is a need for a more productive and result-oriented reform in Nigerian extension system. A unified extension is also recommended for effective extension education from the stage of production, handling, processing, transport and retailing. More conducive enabling environment should be created by the government.
    Description: Includes: 13 references.
    Keywords: Fisheries ; Nigeria ; Public relation ; Communication ; Funding ; Extensionists ; Fisherfolks ; freshwater environment ; automation
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 388-391
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    Comparative nutritional composition of smoked catfish (Clarias gariepinus) produced from NIOMR smoking kiln and local cut-drum oven (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24668 | 19325 | 2018-05-23 07:52:49 | 24668 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The effects of two different preservative equipment-the NIOMR (Nigerian Institute for Oceanography and Marine Research) kiln and local cut-drum oven-on crude protein, minerals and vitamins of C. gariepinus were studied. The fish were obtained from Africa Regional Aquaculture Centre, Aluu, Port Harcourt. Moisture, crude protein, crude fibre, crude fat and ash content were determined using standard methods. There were significant differences (P〈0.05) in the moisture and crude fiber content. The moisture content of the fish sample ranged from 2.18 to 5.98, this could be attributed to the drying methods. The crude fibre content ranged from 2.78 and shows no significant difference. The ash content of the samples ranged from 0.25- 0.6%, an indication that smoking reduces the ash content of fish. Result of the crude protein of fresh fish was 21.84 ~c 1.10 which increased to 59.53 ~c 1.88 and 35.41 ~c1.00 in NIOMR smoking kiln and local oven respectively. This means that, there was a significant different in the effects of the two dryers on crude protein. The vitamin content of both ovens showed no significant difference except in vitamin A which was significant in the fish dried with smoking kiln. There was significant different (p〈0.05) in the mineral content of the two drying equipment, this was in Sodium, Potassium and Phosphorus level of fish smoked with NIOMR smoking kiln. This result indicates that the two drying methods have varying effects on the nutritional quality of catfish, which is in favour of NIOMR kiln.
    Description: Includes: 8 references.
    Keywords: Fisheries ; Nigeria ; Smoking ; Production ; Preservative research ; Quality ; freshwater environment ; automation
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 412-414
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    Regional survey of histamine in fish and fish products: Thailand (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26311 | 23782 | 2019-04-02 01:39:51 | 26311 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Thailand ; Histamines ; Fish ; Canned products ; Dried products ; Biological sampling ; Biochemical analysis ; Quality control
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 138-142
    Format: 5
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    Regional survey of chloramphenicol, nitrofuran, malachite green and leuco-malachite green in fish and fish products: Myanmar (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26315 | 23782 | 2019-04-02 01:47:44 | 26315 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Aquaculture ; Fisheries ; Myanmar ; Drugs ; Aquaculture products ; Biological sampling ; Biochemical analysis ; Quality control
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 160-165
    Format: 6
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  • 122
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    Regional survey of heavy metals in fish and fish products: Singapore (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26294 | 23782 | 2019-03-22 05:17:06 | 26294 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Singapore ; Heavy metals ; Arsenic ; Cadmium ; Lead ; Mercury ; Biological sampling ; Fish ; Fishery products ; Seafood
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 47-52
    Format: 6
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    Regional survey of pesticide residues in fish and fish products: Singapore (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26302 | 23782 | 2019-03-27 05:50:18 | 26302 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Chemistry ; Fisheries ; Singapore ; Pesticides ; Biological sampling ; Fish ; Dried products ; Biochemical analysis ; Lethal limits
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 90-99
    Format: 10
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  • 124
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    Regional survey of histamine in fish and fish products: Malaysia (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26308 | 23782 | 2019-03-27 03:44:10 | 26308 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Malaysia ; Histamines ; Biological sampling ; Biochemical analysis ; Fish ; Fishery products ; Quality control
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 124-128
    Format: 5
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  • 125
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    Regional survey of chloramphenicol, nitrofuran, malachite green and leuco-malachite green in fish and fish products: Philippines (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26316 | 23782 | 2019-04-02 02:01:14 | 26316 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Aquaculture ; Fisheries ; Philippines ; Organic compounds ; Drugs ; Aquaculture products ; Fishery products ; Quality assurance ; Legislation
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 166-172
    Format: 7
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  • 126
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    Regional survey of histamine in fish and fish products: Philippines (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26310 | 23782 | 2019-03-27 05:46:04 | 26310 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Philippines ; Histamines ; Biological sampling ; Fish ; Fishery products ; Quality control
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 134-137
    Format: 4
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  • 127
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    Regional survey of chloramphenicol, nitrofuran, malachite green and leuco-malachite green in fish and fish products: Vietnam (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26318 | 23782 | 2019-04-02 02:44:00 | 26318 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Aquaculture ; Fisheries ; Viet Nam ; Drugs ; Organic compounds ; Fishery products ; Aquaculture products ; Biochemical analysis ; Quality control
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 177-181
    Format: 5
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    Development of value-added fishery products (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26702 | 23782 | 2019-08-29 01:42:58 | 26702 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Studies on the development of value-added products using arrow squid (Loligo sp.) and bullet tuna (Auxis rocheii, R.) were conducted. The recommended steps in new product development were systematically followed while establishing control to all steps in these product development studies to ensure that the requirements for quality fishery products are met. New product concepts were generated, evaluated, and refined. The most plausible concepts were then advanced to the product optimization stage wherein samples were subjected to a series of sensory evaluations to come up with the standardized formulations. Three (3) squid products, namely squid nuggets, squid loaf, and squid rolls, and two (2) bullet tuna products, namely tuna loaf and dried seasoned tuna, were then subjected to either accelerated or actual shelf life testings, consumer acceptability testings, and cost analyses. In collaboration with a private company, the most promising technologies generated from the preceding activities were advanced to pilot-scale production in which the HACCP-concept of quality assurance was applied, and the hazards and critical control points associated with each step in the production of the new products were established. The resulting products were finally subjected to consumer testing at the Japan Food Expo '95 which proved their acceptability to the export market as well as the products' feasibility for commercialization.
    Keywords: Fisheries ; Fishery products ; HACCP ; Testing ; Fishery economics
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 153-161
    Format: 9
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    Quality assurance program for frozen surimi in Thailand (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26708 | 23782 | 2019-08-29 03:16:26 | 26708 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Frozen surimi has been a major export fishery product of Thailand for many years. Approximately 70% of its total production is exported to Japan, while the remaining is locally used and exported to France, Korea, Taiwan and Singapore. Although surimi is not categorized as a high risk item, as it is not a ready-to-consume product but prepared to serve as a raw material for a variety of surimi-based products, it still needs to meet the minimum requirements of product safety control. In this study, the quality assurance program is established for the Thai surimi industry. The guidelines are prepared and based upon risk assessment and potential health hazard identification associated with routine surimi production, from the point where raw material is received at the plant, through the line processing steps, and ending with the finished product s transportation. Besides the Hazard Analysis and Critical Control Point (HACCP) principles applied in this program, Good Manufacturing Practices and sanitation standard operating program are also added to strengthen the aim of assurance in food safety.
    Keywords: Fisheries ; Minced products ; Quality assurance ; Processing fishery products ; HACCP ; Thailand
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 224-233
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    Utilization of lizardfish, Saurida tumbil, for surimi production (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26705 | 23782 | 2019-08-29 08:02:13 | 26705 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Lizardfish, Saurida tumbil, is an abundant resource that is relatively underutilized. It is a potential raw material for surimi processing. Characterized by its ability to produce formaldehyde endogenously after catch, the lizardfish tends to have comparatively higher levels of formaldehyde, which is known to accelerate protein denaturation. As such minced meat from lizardfish has to be treated to enhance its gel-forming ability. The objective of this project is to improve the gel-forming ability of surimi made from fresh and frozen lizardfish by sodium pyrophosphate leaching (PL), and the use of egg white and beef-plasma protein concentrate. This was compared against the usual leaching (UL) method. Pyrophosphate leaching (PL) resulted in better gel-forming ability. Two-times of leaching using 0.2% sodium pyrophosphate resulted in the production of reasonably good quality fish jelly products from fresh and frozen lizardfish. Both egg white and beef-plasma protein concentrate improved the gel-forming ability of surimi from lizardfish. However, if the frozen raw material is of poor quality, neither pyrophosphate leaching nor the addition of egg-white or beef-plasma could improve the gel-forming ability of the surimi. The critical control point for raw material quality is its formaldehyde level. The best quality surimi is obtained when the formaldehyde level is below 15 ppm.
    Keywords: Fisheries ; Saurida tumbil ; Minced products ; Processing fishery products ; Experimental research
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 183-199
    Format: 17
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  • 131
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    Brunei Darussalam: Problems encountered in data compilation (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26713 | 23782 | 2019-08-29 07:44:23 | 26713 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Fishery products ; Fishery data ; Brunei Darussalam
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 257
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  • 132
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    Singapore: Situation and problems faced by the fishery industry (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26717 | 23782 | 2019-08-29 05:55:56 | 26717 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Minced products ; Frozen products ; Fishery economics ; Singapore
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 265-267
    Format: 3
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  • 133
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    Energy analysis of fishing and processing fish in Japan (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26724 | 23782 | 2019-08-29 00:55:51 | 26724 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Energy ; Fishing ; Processing fishery products ; Japan
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 23-35
    Format: 13
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  • 134
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    Indonesia: Problems on compilation of data on fish and fish products (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26714 | 23782 | 2019-08-29 07:40:48 | 26714 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Fishery data ; Fisheries ; Fishery products ; Indonesia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 258-259
    Format: 2
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  • 135
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    Development of an underutilized fish species - male capelin (Mallotus villosus) (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26723 | 23782 | 2019-08-29 01:05:10 | 26723 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Gadoid fisheries ; Proteins ; Fishery economics ; Fishery products ; Processing fishery products ; Packing fishery products
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 18-22
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  • 136
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    Storage lives of chilled and frozen scampi (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26728 | 23782 | 2019-08-28 05:29:51 | 26728 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Freezing storage ; Thawing ; Odour ; Taste ; Acceptability ; Lobster fisheries
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 73-85
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  • 137
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    Development of fishery post-harvest technology in Indonesia (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26729 | 23782 | 2019-08-28 05:13:12 | 26729 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Fisheries ; Fishery resources ; Fishery economics ; Fishery technology ; Indonesia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 89-97
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  • 138
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    Determination of ash (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26801 | 23782 | 2019-10-22 05:10:19 | 26801 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Presented in the paper is the standard procedure in the determination of ash in meat. Specifically, the procedures in the sample preparation, instrument and apparatus required, and the analytical procedures and calculation for each method are presented.
    Keywords: Chemistry ; Fisheries ; Ashes ; Ash content ; Heating ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Microbiological analysis ; Standards ; Specifications
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: A-2.1
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  • 139
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    Liquid smoking of some fishery products (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26740 | 23782 | 2019-09-12 03:29:18 | 26740 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Natural and liquid smoking of striped catfish (Pangasius sutchi), chub mackerel (Rastrelliger brachysonus), squid (Loligo edulis) and green mussel (Mytilus viridis) were compared to evaluate the feasibility of liquid smoking of these products. The appropriate brine concentration and brining time as well as liquid smoke concentration and soaking time for each product were determined. The acceptability of these smoked products was tested by sensory evaluation using a nine-point hedonic scale. The characteristics of the products judged were colour, flavour, odour, texture and overall acceptability. A panel of 14 judges was drawn from the faculty members and students of the Department of Fishery Products, Faculty of Fisheries. The results were statistically analyzed using Student s t-test. The appropriate brine concentration and brining time for striped catfish, chub mackerel, squid and green mussel were 15% for 7 min; 20% for 30 min; 15% for 10 min and 5% for 4 min, respectively. The suitable liquid smoke concentration and soaking time for striped catfish and chub mackerel were 10% for 15 min; for squid and green mussel the appropriate concentration and soaking time were 6% for 15 min and 1% for 2 min respectively. The sensory evaluation scores of both natural and liquid smoked products were comparable. The scores for colour, flavour, odour, texture and overall acceptability of striped catfish, chub mackerel and green mussel were not significantly different. However, the score for odour of liquid smoked squid was significantly lower than that of natural smoked squid (P=0.05) but all other characteristic scores were not significantly different.
    Keywords: Fisheries ; Fishery products ; Curing ; Brines ; Acceptability ; Evaluation
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 221-229
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  • 140
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    The problems of quality and food hygiene of seafood exported from Southeast Asia to Japan (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26725 | 23782 | 2019-08-28 07:49:52 | 26725 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Fishery products ; Trade ; Inspection ; Standards ; Food additives
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 36-52
    Format: 17
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  • 141
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    From basic research to new industries within marine biotechnology: Successes and failures in Norway (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26727 | 23782 | 2019-08-28 05:40:18 | 26727 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Biotechnology ; Research ; Research programmes ; Research institutions ; Education establishments ; Norway
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 63-72
    Format: 10
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  • 142
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    The K value as a freshness index for tropical food fish and its application as a quality control tool during fish storage and distribution (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26743 | 23782 | 2019-09-12 01:49:08 | 26743 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The K value, expressed as K value % = HxR + Hx /ATP + ADP + AMP + IMP + HxR + Hx x 100 is a good index for estimating the enzymatic freshness of fish. The changes in K value of various species of tropical food fishes during ice-storage had been studied. It was found that these warm water fishes deteriorate slowly under ice-storage preservation. A study was made on the K value changes of three species of fish (Polynemus sp., Rastrelliger kanagurta and Pampus argenteus) in a supermarket distribution chain. Most sets of data showed changes of quality; from the point of supply until the morning after an overnight stay on display shelves. The results support a conclusion that the shelf life limit of fresh tropical food fish, based on sensory evaluation, was, when handled well, between 12 to 28 days ice-storage depending on species, with the K value ranging from 24 -37%.
    Keywords: Fisheries ; Food fish ; Tropical fish ; Quality control ; Freezing storage
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 250-257
    Format: 8
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    Assessment of mercury contents of tuna in East Indonesian seas (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26747 | 23782 | 2019-09-12 00:54:43 | 26747 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Samples of meat were taken from tuna landed at Ambon, Biak, Bitung and Denpasar between August 1989 and February 1990 at two month intervals. They were flown to Jakarta for assessment of their mercury content. It was found that the mercury content did not increase with size of tuna. The mercury content of tuna was generally well below 0.5 ppm, although samples from Ambon were higher than those from other three landing places.
    Keywords: Fisheries ; Mercury ; Tuna fisheries ; Indonesia
    Repository Name: AquaDocs
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    Format: 283-285
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    Histamine content changes during processing of canned tuna by Indonesian canning factories (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26745 | 23782 | 2019-09-13 00:50:39 | 26745 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: An assessment was carried out on histamine content of three canning factories. These factories are located in East Java (A), Bali (B) and North Sulawesi (C). Histamine contents were assessed along various stages of their processing. Results showed that histamine contents changed during processing of canned tuna in both A and B factories and that they increased significantly especially after steaming. In contrast, decreasing histamine content was noted during processing of canned tuna at factory C. These results seem to stem from the fact that a lot of raw material was processed by factories A and B. Histamine was probably produced during delays along the processing line. This was in contrast to factory C in which a special tuna fish was processed for the study and only a small quantity of fish was going through at the time.
    Keywords: Fisheries ; Canned products ; Canning ; Fishery industry plants ; Histamines
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 273-276
    Format: 4
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  • 145
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    Canned tuna quality management manual (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26792 | 23782 | 2019-10-01 02:38:00 | 26792 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Canned products ; Quality control ; Inspection ; HACCP ; Evaluation ; Fishery industry equipment ; Fishery industry plants ; Packing fishery products
    Repository Name: AquaDocs
    Type: book
    Format: application/pdf
    Format: application/pdf
    Format: 203
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  • 146
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    Laboratory manual on analytical methods and procedures for fish and fish products (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26799 | 23782 | 2019-11-12 05:20:14 | 26799 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The manual provides useful guides for laboratory workers and technical personnel. The procedures for determining the physical and chemical properties of fish meat, the analysis of oils and some additives and microbiological procedures are also included.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Microbiological analysis ; Fishery products ; Processed fishery products ; Fish inspection ; Fishery industry ; Food additives ; Food technology ; Standards ; Specifications
    Repository Name: AquaDocs
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  • 147
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    Inspection/verification of a tuna cannery (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26795 | 23782 | 2019-10-01 02:16:18 | 26795 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Fishery industry equipment ; Fishery industry plants ; Inspection ; Quality control
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 73-92
    Format: 20
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  • 148
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    Analysis of additives: Detection of polyphosphates (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26839 | 23782 | 2019-11-15 08:02:24 | 26839 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: Polyphosphates are commonly used in the production of fish jelly products. The paper provides the methodology in the detection of polyphosphates in fish products. Instructions on the preparation of sample solution and the apparatus and reagents needed are presented. Detailed procedures in the chromatographic separation of polyphosphates are also provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Fishery products ; Fishery industry ; Food technology ; Standards ; Specifications ; Additives ; Food additives ; Phosphates
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: D-1.1-D-1.3
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  • 149
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    Development of 2.14 M one sheet canoe (SAMPAN) for pond activities (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23416 | 19325 | 2018-04-25 19:13:12 | 23416 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: A 2.14 M length overall (LOA) flat bottom modern canoe (Sampan), was designed and constructed using locally available materials. The canoe features include easy construction, portability, least cost, light weight, shallow draft, and easy maneuverability. The light displacement (weight empty) was 25kg, which was less than local canoe of same size. When placed on water a draft of 5.5cm. The capacity of the canoe was 200kg, and the total production cost of N10, 000.00, ($67) which was not beyond the reach of an average fisher folks, or any fish farmer. The canoe was easily maneuvered when propelled by paddling as it floated at a shallow draft; this makes the canoe adequate for use on shallow water bodies such as ponds and reservoirs. The craft, because of its easy maneuverability, can also be used on shallow water bodies for recreational activities such as, sport fishing and canoeing.
    Description: Includes:-3 tables.;2 figs.;2 plates.;6 refs.
    Keywords: Aquaculture ; Fisheries ; Nigeria ; New Bussa ; freshwater environment ; Canoes ; Artisanal fishing ; Surface craft ; Boats ; Design ; Construction
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 17- 21
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  • 150
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    A prelimnary study of diet in the juvenile gorean snapper, Lutjanus goreensis (Valenciennes, 1830) from Five Cowrie Creek, Lagos, Nigeria (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23453 | 19325 | 2018-05-04 17:40:12 | 23453 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Diet of the juvenile Gorean snapper, Lutjanus goreensis from Five Cowrie Creek was investigated between April 2008 and January 2009. Analyses of 184 specimens by numerical (NO), frequency of occurrence (FO) and geometric index of importance (GII) methods, respectively revealed a moderately high proportion (47.83%) of stomachs with food or prey. Shrimps and crabs constituted more than 80 % of total prey items. Other dietary components included lobsters, stomatopods, whole fish and fish parts. Similarly, analysis of diet composition by size - groups also indicated a predominance of the shrimps and crabs over all other prey items. In conclusion, L. goreensis can be described as a top-level carnivore feeding almost exclusively on epibenthic crustaceans in the juvenile stage.
    Description: Includes:- 2 tables.;21 refs.
    Keywords: Ecology ; Fisheries ; Lutjanus goreensis ; Nigeria ; Lagos Greek ; brackishwater environment ; Diets ; Stomach content ; Feeding behaviour
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 232-236
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  • 151
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    The fin fish assembage of Ikere Gorge, Oyo State, Nigeria (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23459 | 19325 | 2018-05-05 12:28:56 | 23459 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: The fin fish assemblage of Ikere gorge was investigated. The fin fishes comprised a total of 34 species belonging to 13 families. Chrysicthys nigrodigitatus was most abundant and highest in biomass (69,198.33 kg) accounting for 34.65% of the catch. Synodontis nigrita, Malapterurus electricus, Marcusenius psittacus Gnathonemus sensgalensis and Gnathonemus cyprinoides were the least in number, while Phago loricatus was least in biomass (20.00 kg) accounting for 0.01%.The major aim was to assess the fish resources of the gorge and evaluate the water parameters as related to fish production. No significant difference was observed in dissolved oxygen, nitrate, phosphate, water temperature, conductivity, alkalinity, total dissolved solid and pH range value in the stations. The water quality parameters were favourable for fish production. Water level and temperature were observed to guarantee high fish yield in the gorge.
    Description: Includes:- 2 tables.;16 refs.
    Keywords: Ecology ; Fisheries ; Nigeria ; Ikere Gorge ; freshwater environment ; Check lists ; Population dynamics ; Physicochemical properties ; Chemical properties
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 266-271
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  • 152
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    Fish species composition in Lake Kivu, Rwanda, East Africa (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23462 | 19325 | 2018-05-05 12:34:34 | 23462 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: An assessment of the fish species composition in Lake Kivu Rwanda, East Africa was carried out between February 2005 and December 2006. Fish samples and statistics of average daily catches were collected from the organized fishermen cooperatives societies in Gisenyi, Kibuye and Cyangugu. Fish samples were identified on the basis of existing photographs and standard identification keys. Ten (10) fish species belonging to four families (Clupeidae, Cyprinidae, Clariidae and Cichlidae) were identified with Limnothrisa miodon (57.1%), Haplochromis spp. (17.1%), Tilapia rendalli (9.9%) and Oreochromis niloticus (9.5%) being the dominant ones.
    Description: Includes:- 2 tables.;4 figs.;17 refs.
    Keywords: Fisheries ; Rwanda ; Kivu L. ; freshwater environment ; Check lists ; Population dynamics ; Stock assessment
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 284-289
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  • 153
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    An evaluation of ichthyo-fauna composition of Oramiri-Ukwa River, Imo State, Nigeria (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23465 | 19325 | 2018-05-05 12:40:39 | 23465 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: An aspect of artisanal fisheries of Oramiri-Ukwa River was studied for 6 months from January to June 2008, to get the base-line information on the artisanal fisheries of Oramiri-Ukwa River and appraise the Ichthyo-fauna of the river and their monthly distribution. Data collected was subjected to Simpson’s index, Shannon-Weiner index and Marglefs’ index analysis. The Ichthyofauna community was composed of 30 species representing 16 families with Cichlidae having the highest number of species. Nineteen (19) species were present in both wet and dry season. Wet season recorded more species than Dry season with 52.1% and 47.9% respectively. General diversity value of 0.856 (dry) and 0.672 (wet) was observed. Key words: Ichthyo-fauna, Oramiri-Ukwa, composition
    Description: Includes:- 2 tables.;2 figs.;12 refs.
    Keywords: Fisheries ; Nigeria ; Oramiri-Ukwa R. ; freshwater environment ; Check lists ; Species diversity ; Stock assessment ; Population dynamics ; Ichthyology ; Fauna
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 300-304
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  • 154
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    Assessment of the fish consumption pattern of Njala-Mokonde community residents, Moyanba District, Sierra Leone (2021)
    Fisheries Society of nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23481 | 19325 | 2018-05-06 12:41:03 | 23481 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Information on the fish consumption pattern of the residents of Njala community, Moyanba district, Sierra Leone is rare. Njala is a University community closely annexed by Mokonde village. This study was carried out using structured questionnaires to investigate the fish consumption pattern of the people of the community. The questionnaires were delivered by hand to randomly selected members of the community. 90 respondents comprising 40 males and 50 females were sampled. The respondents composed of 22.2% academics, 8.89% farmers, 14.4% sales persons, 2.22% bank workers, 1.11% police staff, 33.3% dependents, and 1.11% civil servants. 16.7% of the respondents did not indicate their work category. The ages of respondents were between 10 ? 70 years. The results generated showed that 98.9% of the respondents eat one type of fish or the other while 1.11% does not eat fish. Average money spent by respondents ranged from Le 2000 ? Le 10,000. However 48.9% of the respondents spend more than Le 10,000 weekly. Consumption pattern seems to be proportional to income of respondents. Poverty and starvation is pronounced in the study area and this probably accounted for the low consumption of protein-based food especially fish. Keywords: Fish consumption, Respondents, Njala, Mokonde, Sierra Leone.
    Description: Includes:- 2 tables.;2 figs.;14 plates.;6 refs.
    Keywords: Fisheries ; Sierra Leone ; freshwater environment ; Fish consumption
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 353-359
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  • 155
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    Preliminary evaluation of a new fishing pot trap in Lake Kainji, Nigeria (2021)
    Fisheries Society of nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23487 | 19325 | 2018-05-06 12:55:39 | 23487 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Based on personal working relationship with artisan fishers in the southern portion of Lake Kainji, North Western Nigeria, a new fishing pot trap made with polyvinyl chloride pipe material was designed, fabricated and its performance evaluated by comparison with the traditional Malian trap. The aim was to have a fishing pot trap that is long-lasting and be at least as effective as the Malian trap in fish catch. The results of the study revealed the advantages and limitations in the design and mode of operation of each of the trap type and recommended areas of improvement. Data collected on fish diversity, number and weight were subjected to descriptive statistics and Student’s t-test. The results showed that nineteen fish species belonging to ten families were caught. While the same species density index (SDI) of 0.84 was recorded for both traps, there was no significant difference (P〉0.05) in the catch by number and weight of the two traps.
    Description: Includes:- 3 tables.;3 figs.;14 refs.
    Keywords: Fisheries ; Nigeria ; Kainji L. ; freshwater environment ; Fishing gear ; Pots ; Gear construction ; Gear research ; Catching methods ; Pot fishing
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 387-394
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  • 156
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    Microflora associated with processing and storage of the white catfish (Chrysichthys nigrodigitatus) (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23488 | 19325 | 2018-05-06 12:56:50 | 23488 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Quality deterioration (microbial load) of smoked white catfish (Chrysichthys nigrodigitatus) from Ekeonunwa market Imo state Nigeria, was studied for six weeks. The experimental fish was divided into two batches. One batch of 18 fishes with average weight of 700g was resmoked weekly at 75oC. the second batch of 18 fishes weighing an average of 750g was left unresmoked. Weekly samples of both unresmoked and resmoked fish were taken from different regions (body flanks, gill and gut) and analyzed in the laboratory. Total plate counts (TPC) for the bacterial organisms in both resmoked and unresmoked samples (Table III) ranging between 1.56 105 and TNTC ( too numereous to count) exceeded the range of specified microbiological limits recommended for fish and fishery products by ICMSF (1986). Pathogenic organisms isolated included Escherichia coli, Staphylococcus aureus, Lysteria monocytogenes, Bacillus cereus, Aspergillus flavus, Penicillium varrucossum, Yeast and Mucor. Both unresmoked and resmoked fish specimens were contaminated with these spoilage microbes, but the microbial load of the resmoked samples were less than those of the unresmoked samples. Resmoking beneficially reduces microbial load of stored fish, increases the shelf/storage life, but can not totally eliminate pathogens. The presence of pathogens raises a public health concern.
    Description: Includes:- 3 tables.;1 fig.;10 refs.
    Keywords: Fisheries ; Chrysichthys nigrodigitatus ; Nigeria ; Imo State ; freshwater environment ; Processing fishery products ; Curing ; Microbial contamination ; Microorganisms ; Infestation ; Fish storage
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 442-448
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  • 157
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    Public perception of mudskipper consumption in some fishing communities of River State (2021)
    Fisheries Society of nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23485 | 19325 | 2018-05-06 12:49:11 | 23485 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Mudskippers are a delicacy in some fishing communities of Rivers State, public perception of mudskipper consumption were determined in these areas. 120 structured questionnaires were randomly distributed in ten communities spread across three local governments. The results of the survey showed that consumption of mudskipper was more popular among the old people than the younger ones. A greater number of people 82.50% considered mudskipper as fish, 10% as nuisance, 4.17% as snake and 3.32% as pest. Also, 83.33% of the respondents were favourably disposed towards mudskipper 15.0% were negative and 1.67% were indifferent. The study revealed that there is no taboo in the consumption of mudskipper in these area, any perceptions was observed personal to individual and not a communal affair.
    Description: Includes:- 5 tables.;9 refs.
    Keywords: Fisheries ; Nigeria ; Rivers State ; Taboo ; Mudskipper ; freshwater environment ; Fish consumption
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 377-380
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  • 158
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    Evaluation of trunk as the most fleshy region of some fish species from the Warri River, Delta State, Nigeria (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23492 | 19325 | 2018-05-06 13:03:31 | 23492 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Major sections (head, trunk and tail) of six fish species from the Warri River were measured in order to determine which was the largest and most fleshy. Besides Ethmalosa fimbriata (37.31%) the trunk length was over 40% of the standard length in the fish species. Based on the length and breadth the trunk was larger than the tail and head in all species and could be the bulkiest and most fleshy region. The sequence of the trunk surface area was Brycinus macrolepidotus 〉 B.nurse 〉 Pellonula leonensis 〉 Liza grandisquamis 〉 Mugil cephalus 〉 Ethmalosa fimbriata.
    Description: includes:- 7 tables.;9 refs.
    Keywords: Fisheries ; Nigeria ; Warri R. ; freshwater environment ; Morphometry ; Dimensions
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 466-469
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  • 159
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    Effects of some plant extracts on some biological parameters of catfish Clarias gariepinus (Burchell 1822) (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23493 | 19325 | 2018-05-06 13:04:49 | 23493 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Preliminary studies on the antimicrobial properties of various methods of extraction of Carica papaya (Pawpaw) seeds, Citrus paradisa (Grapefruit peel) and Piper guineese (Black pepper) seeds against eleven bacteria ( Proteus mirabilis, Escherichia coli, Staphylococcus aureus, Acinetobacter sp, Klebsiella pneumoniae, K. oxytoca, Pseudomonas lundensis, Bacillus subtilis, B. megaterium, Citrobacter freundii and Enterobacter cloacae) associated with fresh catfish spoilage were investigated using the cup-plate diffusion method. Cold water, hot water and ethanol were the different extraction solvents used while the concentrations were 0.1g/ml, 0.2g/ml, 0.3g/ml, 0.4g/ml and 0.5g/ml. Generally, hot water extraction of the plant materials was most effective (p 〈 0.01) with the highest mean zone of inhibition of 4.42 ~c 0.38mm followed by ethanol extraction (3.55 ~c 0.47mm). The most susceptible bacteria was Enterobacter cloacae with the highest mean zone of inhibition of 22.6 ~c 3.50mm. This investigation indicates that the antimicrobial compounds in grape peel and black pepper are best liberated when extracted with ethanol while that of pawpaw is best extracted with hot water.
    Description: Includes: 2 tables.;7 refs.
    Keywords: Fisheries ; Clarias gariepinus ; Nigeria ; freshwater environment ; Chemical extraction ; Preservatives ; Plant utilization ; Aquatic plants
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 470-474
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  • 160
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    Value addition for snacks using fish (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23494 | 19325 | 2018-05-06 13:07:24 | 23494 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: The paper highlights recipes for the production of snacks using finfish and shellfish such as cockles, oysters and pelagic fish in the production of fish yam/sweet potato balls; fish roll or fish pie; cockle and oyster barbecue. In the production of these snacks, the quality and quantity of fish required is adequately provided. Each snack contained minced fish, a source of essential nutrients in good nutrition. The snacks were subjected to organoleptic assessment by a group of five panelists. Highest preference was given to fish sweet potato balls, rated 9, followed by oyster and cockle barbecue rated 8.6 on a 9-point scale. This is because cockle and oyster meat are fleshy and tasty. Production of these snacks is a way of introducing high protein variety to the family menu. Prices of the production of snacks were calculated and results showed that they are cheap and easily affordable. Conclusively, these snacks are easy to make and could be widely accepted. The overall concept of making these snacks was to introduce a wide range of foods produced using fish to add value to our daily nutrition.
    Description: Includes:- 3 tables.;4 figs.;12 refs.
    Keywords: Fisheries ; Nigeria ; Port Harcourt ; Fish Snacks ; freshwater environment ; Minced products ; Processed fishery products
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 475-479
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  • 161
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    Comparison of keeping qualities of Alestes nurse displayed in traditional and improved retail tables (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23496 | 19325 | 2018-05-07 12:15:56 | 23496 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: The study accessed the quality changes of Alestes nurse displayed at 31-33oC average daily temperature on different platforms, the traditional retail table used by fish processors and the NIFFR improved retail table. The fishes were displayed on the tables for 9 hours and quality attributes were monitored hourly by trained panelists. For A. nurse, the gills and intestine recorded faster deterioration starting from the fourth and fifth hours for samples in the traditional table while those in improved table were prolonged by one hour. Scores for skin brightness and texture did not indicate quality deterioration throughout the display period. However, at the end of the storage time, samples in screened table recorded 1.5 x 104 cfu/g while samples in unscreened table recorded 3.7 x 107 cfu/g. The study shows the effectiveness of the improved table over the traditional table in enhancing the keeping quality, minimizing fish contamination and improving the general hygiene of fresh fish.
    Description: Includes:- 3 tables.;2 figs.;7 refs.
    Keywords: Fisheries ; Health ; Alestes nurse ; Nigeria ; New Bussa ; freshwater environment ; Fish handling ; Hygiene ; Public health
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 484-488
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  • 162
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    Body characteristics, yield indices and proximate composition of horse eye mackerel fish (Caranax carangus) (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23455 | 19325 | 2018-05-04 17:42:49 | 23455 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Size measurements, anatomical composition and proximate composition of Horse eye mackerel fish (Caranax carangus) were carried out. The mean values of length (cm) and weight (g) were 21.79~c 1.76 and 87.96 ~c 21.4 respectively. Anatomical fractionation showed that the fish samples contained on the average 45.8% fillet, 17.75% head, 25.98% body frame and 6.12% gut. The proximate composition analysis showed that the fish sample contained 77.2% water content, 0.4% lipid, 20.63% protein and 1.67% ash. Horse eye mackerel fish thus constitutes a source of high protein as well as an ideal dietetic fish food.
    Description: Includes:- 2table.;1 figs.;11 refs.
    Keywords: Ecology ; Fisheries ; Caranax carangus ; Nigeria ; Lagos ; Proximate composition ; freshwater environment ; Length-weight relationships ; Chemical composition
    Repository Name: AquaDocs
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  • 163
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    Aspects of reproductive biology of Hyperopisus bebe occidentalis (Gunther) in Zaria Dam, Nigeria (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23457 | 19325 | 2018-05-04 17:47:03 | 23457 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Studies were conducted on some aspects of the reproductive biology of Hyperopisus bebe occidentalis in Zaria dam. Fish were captured by using nets of various mesh sizes for 24 months. Sex ratio of female to male was 1:1.08. Fully matured gonads were observed from July to October (rainy season). Fish with spent gonads were found from December to February, virgin or immature gonads (stage I and II) were found in February to May, with the peak in March in female fish and January in male. The estimated fecundity ranged from 2025 to 4192 eggs per female with mean of 2822.4 ~c SD 781.43 eggs that had standard length range of 24.20cm to 35.50cm. The gonadosomatic index (GSI) ranged from 1.63% to 3.31%. There was a significant correlation (r = 0.873, p〉0.05) between the weight of the fish and fecundity and insignificant correlation (r=0.497, p〈0.05) between the standard length and fecundity.
    Description: Includes:- 1 table.;2 figs.;19 refs.
    Keywords: Fisheries ; Hyperopisus bebe occidentalis ; Nigeria ; Zaria Dam ; freshwater environment ; Reproduction ; Reproductive behaviour ; Reproductive cycle ; Fecundity ; Gonadosomatic index ; Sex ratio
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  • 164
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    A survey of fish fauna in Lake Kainji, New Bussa, Niger State (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23454 | 19325 | 2018-05-04 17:41:21 | 23454 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: The survey of the fish fauna in Lake Kainji, Niger State and Kebbi state was carried out for a period of three months from August to October 2003 using fishermen’s catches. Forty two species of fish were identified and these were from the families Osteoglossidae, Gymnarchidae, Mormyridae, Characidae, Citharinidae, Distichodontidae, Cyprinidae Bagridae, Schilbeidae, Clariidae, Malapteruridae, Mochokidae, Channidae, Centropomidae, Cichlidae and Clupeidae. In terms of relative abundance, the family Bagridae has the highest species diversity of 20%, while Osteoglossidae, Citharinidae, Malapteruridae, Mochokidae, Centropomidae and Gymnarcidae had lowest species diversity of 2.5%.The study provides a biogenic history of fish species diversity within this period of the year in the last two decades. The significance of the study is to provide information towards a sustainable exploitation strategy in the community based management of the fisheries of the lake.
    Description: Includes:- 3 figs.;14 refs.
    Keywords: Ecology ; Fisheries ; Nigeria ; Kainji L. ; freshwater environment ; Fauna ; Population dynamics ; Check lists
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  • 165
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    Hybridization and speciation among cichlids: the case of 'Wesafu', an ecotype cichlid (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23469 | 19325 | 2018-05-05 12:49:04 | 23469 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Fishes of the family Cichlidae are known for spectacular adaptive radiation and therefore serve as a model for evolutionary and ecological studies. They are highly speciated due to hybridization that frequently occur in the wild. The existence of an ecotype cichlid, ’wesafu’ in Epe Lagoon, Lagos, Nigeria appears to be the result of such hybridization. This paper reviews the profile of wesafu and compare the species with other cichlids, evaluate the probable causes of speciation which includes diversity in feeding morphology, mate choice, adaptation to changes in habitat arising from water level dynamics , eco-phenotypic variation, restricted migration to predation and introgressive hybridization. The implication of such speciation and hybridization were also highlighted.
    Description: includes:- 2 tables.;24 refs.
    Keywords: Fisheries ; Nigeria ; Epe Lagoon ; marine environment ; Hybridization ; Biological speciation ; Species diversity
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  • 166
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    Socio-economic status of the fisherfolk of Yuna Adopted Village in Borgu Local Government Area, Niger State (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23474 | 19325 | 2018-05-05 12:58:18 | 23474 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: The study was conducted to assess the socio-economic status of fisherfolks in Yuna Adopted Village Borgu Local Government Area of Niger State. One hundred respondents (65 male and 35 female) were purposively selected from four registered groups in the Village. Frequencies and Percentages were used to arrange, summarize and present the findings of this study. Majority of the male respondents fell within the range of 30-49 years, while female respondents range from 40-49 and 60-69 years. The distribution of respondents based on educational attainment shows that 92.3% male and 100% female had Quranic education. Majority of the respondents (both male and female) lives in mud with thatched roof houses and do not own radio and television. Similarly the highest proportion of male respondents generated mostly income of 〉N111,000 and N6,000 ? N10,000, while female respondents earned between N11,000 ? N30,000 and N6,000 ? N10,000 only. The technologies awareness by respondents include fish farming, V-bottom boat, Solar tent dryer and trammel net, only fish farming was adopted by respondents. The major constraints to Agricultural Production were identified and suggestion was made on how to overcome the constraints.
    Description: Includes:- 6 tables.;11 refs.
    Keywords: Fisheries ; Sociology ; Nigeria ; Yuna ; Fisherfolk ; Fishery Extention Services ; Extension Services ; freshwater environment ; Socioeconomic aspects ; Technology transfer ; Technology ; Fishermen ; Women
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  • 167
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    Effect of rainfall pattern on fish production in Ogun State, Nigeria (2021)
    Fisheries Society of nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23483 | 19325 | 2018-05-06 12:46:02 | 23483 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: The role of water in fish production could not be overemphasized. This is because water is required for the total functioning of fishes. This study therefore examined the relationship/effect of rainfall pattern on fish production. Secondary data were collected on mean annual rainfall and total annual fish output for the period of 10 years (2000-2009). The study showed that high rainfall was recorded in the year 2001 which marked the lowest fish production year due to floods effect on fish enclosures. These therefore implies that fish farmers should be encouraged to construct ponds with protective measures such as screens, dykes, freeboards, etc. which prevents total loss of stocks during heavy rainfall.
    Description: Includes:- 2 tables.;5 figs.;13 refs.
    Keywords: Fisheries ; Nigeria ; Ogun State ; Climate effects ; freshwater environment ; Rainfall ; Fishery development ; Climatic changes
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  • 168
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    Bio-economic assessment of a purse seining at Orimedu fishing settlement off Lekki, Lagos State (2021)
    Fisheries Society of nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23484 | 19325 | 2018-05-06 12:47:40 | 23484 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: A bio- economic assessment based on the Return On Investment (ROI) of a single purse seiner was done from August 2007 to February 2008 at Orimedu. Catch composition in terms of relative abundance of species and their sizes were also assessed. Total income was derived from the product of average selling price for a basin of fish, average number of fish basins sampled from a purse seiner, number of fishing trips of a purse seiner per month and the total number of months. Total costs were derived from the sum of capital costs, operational costs, depreciation costs, maintenance cost and labor cost which was estimated as 1/3 rd of total income. Fish catch was dominated by mature fish consisting of over 90 % clupeids and measured in heaps of 200 pieces in basins. On the average, there were 17 basins of fish from a purse seiner. Each basin was valued at N8000 and the average number of fishing trips in a month was 9. The calculated ROI was 30.96% indicating that the fishing method was lucrative. The study showed that purse seining is both biologically and economically sustainable with great potentials to alleviate poverty if adopted by the local Nigerian fisherfolks.
    Description: Includes:- 2 tables.;5 refs.
    Keywords: Fisheries ; Management ; ASE ; Nigeria Coast ; marine environment ; Economic analysis ; Fishery economics ; Capture fishery economics ; Financial management ; Investments ; Costs ; Catch composition ; Seiners
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  • 169
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    Development of 4.78M LOA fishing boat (punt) for artisanal fishery (2021)
    Fisheries Society of nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23482 | 19325 | 2018-05-06 12:44:32 | 23482 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: A 4.78 M length overall (LOA) flat bottom modern fishing boat (punt), was designed and constructed using locally available materials. The boat features include easy construction, stability, and high capacity to carry load. Other features include: least cost, light weight, shallow draft, and easy maneuverability. The light displacement (weight empty) was 202.24kg, which was lighter than a local boats of same size. When placed on water a draft of 5cm. The capacity of the boat was 715kg (11 prs), and the total production cost of N39,000.00, which was not beyond the reach of an average fisher folks, or fish farmer. The punt can easily be maneuvered when propelled with 5hp out board engine as it floats at a shallow draft (10cm); this makes it adequate for fishing activities on shallow water bodies. The craft, because of its easy maneuverability, can also be used on shallow water bodies for recreational activities such as, sport fishing.
    Description: Includes:- 2 tables.;2 figs.;4 plates.;8 refs.
    Keywords: Fisheries ; Nigeria ; New Bussa ; Boat design ; Boat construction ; freshwater environment ; Surface craft ; Boats ; Design ; Construction
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  • 170
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    Chemical and biological assessment of Chrysichthys furcatus from River Niger at Cable-point, Asaba (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23489 | 19325 | 2018-05-06 12:58:47 | 23489 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Bacteria flora predominates the skin of freshly caught fish, and will invade the tissue of the fish immediately after catch. Two preservative methods (cold smoking and freezing) were used to store eighteen specimens of Chrysichthys furcatus harvested from River Niger at Cable-point, Asaba. Two specimens were randomly selected every day from the cold smoked specimens and on weekly basis from the frozen specimens for physical, chemical and biological examination for bacteria causing spoilage. Five bacteria isolates: Salmonella spp, Vibrio cholera, Escherichia coli, Staphylococcus aureus and Proteus vulgaris, were identified. Physical observation of the cold smoked fish after 24 hours showed the production of gas, off-odor, off flavour and slime formation. The colony forming units (CFU) of bacteria isolated from the fish immediately after harvest was 116 x 109 cfu/g. It increased to 268 x 109 cfu/g after 4 days of preservation, and to 64 x 109 cfu/g after four weeks of preservation. The Chi square (X2) analysis revealed that there was a significant difference between the bacteria load of frozen and cold smoked specimens. Free fatty acid value immediately after harvest was 0.90 %. It increased to 2.24 % after four weeks in the freezer and 2.35 % after four days of cold smoked storage. The Total Volatile Nitrogen profile at harvest time was 15.3 mgN/100g. It increased to 35.2 mgN/100g after four days, (for the cold smoked specimens) and 26.3 mgN/100g (for the frozen specimens) after four weeks. The peroxide and hydrogen ion concentrations followed the same increasing trend. The study revealed that freezer preservation was better than the cold smoked one. This is because bacteria proliferation was reduced and or halted in the frozen specimens, whereas it encouraged rapid bacteria growth in the cold smoked fish. The production of total volatile nitrogen (TVN), free fatty acid (FFA), peroxide value (PV) and hydrogen ion concentration (pH) was higher in the cold smoked specimens than in frozen ones, hence the cold smoked specimen exhibited shorter shelf life than their frozen specimens.
    Description: Includes:- 4 tables.;15 refs.
    Keywords: Fisheries ; Chrysichthys furcatus ; Nigeria ; Niger R. ; freshwater environment ; Infestation ; Fish storage ; Microbial contamination ; Chemical degradation ; Chemical reactions ; Biological damage ; Damage ; Processing fishery products
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  • 171
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    Comparative study of proximate composition of some wild tilapiine fishes in Epe Lagoon, Lagos, Nigeria (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23499 | 19325 | 2018-05-07 12:20:18 | 23499 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: The proximate composition of some wild tilapiine fishes in Epe lagoon, Lagos, Nigeria was analyzed. The species were Sarotherodon melanotheron, Tilapia guineensis, Tilapia mariaei, Sarotherodon galileaus and an ecotype cichlid popularly called ‘wesafu’. Major nutrient compositions of raw muscles like protein, fat, moisture and ash were determined. Proximate compositions were found to be varied among the species. Protein was determined in Sarotherodon melanotheron (19.13%), T. guineensis (18.71%), T. mariae (18.08%), S. galileaus (18.34%) and ‘wesafu’ (21.80%) respectively. Lipid content was recorded as 0.82%, 0.40%, 0.60%, 0.65%, and 0.90% for the tilapia species. The highest level of moisture content was found in T. guineensis (81.70%) and the lowest was in ‘wesafu’ (78.50%). The percentage of ash content was highest in S. galileaus and S.melanotheron (1.75%) and lowest in T. guineensis (1.00%). The present study revealed highest protein content in the ecotype cichlid, wesafu (19.22%) and lowest value in T.mariae (18.08%) while fat was highest in ‘wesafu’ (0.90%). The results of this study reveal the nutritional significance of the ecotype cichlid, ‘wesafu’ above other cichlids of the lagoon.
    Description: Includes:- 1 table.;11 refs.
    Keywords: Fisheries ; Nigeria ; Epe Lagoon ; Proximate composition ; freshwater environment ; Ash content ; Proteins ; Organic compounds ; Body conditions ; Nutritional requirements
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  • 172
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    Proximate composition of Pseudotolithus elongatus subjected to different processing techniques (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23497 | 19325 | 2018-05-07 12:17:33 | 23497 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: The changes that occur on proximate composition of some common fish processing methods used in Nigeria were studied in order to determine the nutritional content of the processed products. Traditional (smoke drying and sun drying) and modern (electrical oven drying) methods of processing were used to process Pseudotholithus elongatus and the results were compared with the fresh sample to determine the changes that occur during processing. The results for the fresh sample of P. elongatus were 79.50%, 1.50%, 0.8% and 18.2% for moisture, ash, lipid and protein. For the processed products, the moisture content for smoke-dried, sun-dried, salt sun-dried and oven-dried fish were 27.00%, 21.83%, 19.50% and 20.17% . Oven dried had the highest protein content (69.87%) while salt sun-dried had the lowest (54.90%). Lipid content was highest in sun-dried (6.6%) and lowest in smoke-dried (4.6%). Correlation between smoke-dried and sun-dried were r2 = 0.99, smoke-dried and oven-dried were r2= 0.98 and smoke-dried and salt sun-dried were r2= 0.98. There was no correlation between the fresh and the processed P.elongatus. The present findings revealed that processing affect the nutritional composition of fish.
    Description: Includes:- 1 table.;22 refs.
    Keywords: Fisheries ; Health ; Pseudotolithus elongatus ; Nigeria Lagos ; Proximate composition ; freshwater environment ; Processing fishery products ; Moisture ; Proteins ; Chemical analysis ; Lipids
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  • 173
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    Preliminary study on the antioxidative and antimicrobial effects of fresh garlic (Allium sativum) on the shelf life of hot smoked catfish (Clarias gariepinus) (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23495 | 19325 | 2018-05-07 12:13:48 | 23495 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: The effects of fresh garlic (Allium sativum) at concentrations of 0 g/kg (control), 10 g/kg, 30 g/kg and 50 g/kg of fish on lipid oxidation and microbial growth of hot smoked catfish Clarias gariepinus during a 28 day storage period at ambient temperature of 20-260C was examined. The samples were subjected to chemical and microbial analyses during the storage period. The results of analyses suggest that fresh garlic possesses antioxidant and antimicrobial properties, which can extend the shelf life of Clarias gariepinus.
    Description: Includes:- 1 table.;2 figs.;6 refs.
    Keywords: Fisheries ; Clarias gariepinus ; Nigeria ; Garlic ; freshwater environment ; Chemical analysis ; Chemical composition ; Microbiological analysis ; Processing fishery products ; Preservatives ; Fish storage ; Storage conditions ; Storage effects ; Storage life ; Shellfish
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  • 174
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    Comparative studies of groundnut oil and sodium chloride as protectants against insect infestation of smoked dried fish in Kainji Lake areas (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23490 | 19325 | 2018-05-06 13:00:41 | 23490 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: The effects of groundnut oil and sodium chloride as protectants against insect infestation of dried fish were investigated for a period of 13 weeks. The fish samples were divided into 3 groups, a group was soaked for 10mins in 30% sodium chloride solution (Brine), and the second group was dipped in groundnut oil after smoking while the third group served as control. The samples were kept in different containers in the laboratory at temperature of 28oC and 70% Relative humidity for 13 weeks. Results show that, the fish treated with 30% sodium chloride was effectively protected from insect and moulds compared to sample treated with groundnut oil. The odour and the texture were also more attractive to customers. However, fish treated with groundnut oil was attacked by insects at week 12th and 13th with 6 Maculatus, 4 Necrobia rufipes species and at few mould colonies. The control specimens however was attacked by insects from week 8th to 13th with numerous number of both Necrobia rufipes and Maculatus species as well as mould colonies showing as early as from the 6th week. The results proved that sodium chloride is more effective than groundnut oil for long period of storage.
    Description: Includes:- 5 tables.;5 refs.
    Keywords: Fisheries ; Nigeria ; Kainji L. ; Groundnut oil ; freshwater environment ; Infestation ; Processing fishery products ; Fish storage ; Sodium chloride
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  • 175
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    Role of women in fisheries and fish processing: a global view (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23522 | 19325 | 2018-05-09 12:25:25 | 23522 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Women are the majority of the third World population. They are considered subservient to their male counterpart, even in Europe and America where women have greater basic human right. This paper evaluates the various roles of women in Fisheries and fish processing. Statistics from the European Union shows that, of the various fishing sectors, participation of women (in terms of number) was greatest in fish processing, followed by marine aquaculture, marine fishing and inland aquaculture, with no women involved in inland fishing. In Asia and Africa women are basically involved in fish processing and marketing. In Asia (Thailand and Philippines), women are involved in hatchery operations in aquaculture in addition to fish processing. The finding of the review shows that Fish processing in developing countries, principally Africa is not attracting young literate generation who may have better management competence. It further revealed that, in Nigeria women are directly involved in capture fishery, in addition to fish marketing and processing. This is aimed at empowering women economically to meet the pressing needs of the family. The paper further assesses the problems of women in fisheries and fish processing namely, access to financial resources, education, support services and the need to ensure food security. Possible ways of improving women’s participation in fisheries were highlighted.
    Description: Includes:-1 table.;23 refs.
    Keywords: Fisheries ; Nigeria ; freshwater environment ; Women ; Processing fishery products
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  • 176
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    Effects of diesel-oil spillage of fresh, brackish and marine waters on polyvinyl-alcohol (PVA) synthetic fishing twine (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24184 | 19325 | 2018-05-16 14:38:37 | 24184 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The effects of diesel-oil spillage of fresh (0.4ppt), brackish (25ppt) and marine (37ppt) waters on elongation (cm) and breaking load (kgf) of artisanal PVA synthetic twine of varied diameter (4mm, 6mm, 8mm and 10mm) soaked for 16 weeks was studied. Chemical (solubility) test was carried out to identify the experimental twine as PVA among other synthetic twines. The elongation (cm) and breaking load (kgt) of PVA twine diameters were tested by tensile-strength gauge machine (0-200kg) and was carried out in unpolluted (control) and polluted states (spillage level) at 0%, 20%, 40%, 60%, 80% and 100% diesel-oil concentrations of different water salinity. Factorial statistics was used to analyze the treatments; twine (at four levels), water salinity (at three levels) and concentrations (at six levels). This implies 4 by 3 by 6, replicated in four places (288 treatments). Results indicated that elongation (cm) and breaking load (kg) of the specimens were significantly (P〈0.05) influenced by twine thickness. Twine l0mm soaked in 3.0 litres of unpolluted freshwater had significant (p〈0.5) correlation coefficient r,0.927 and lowest r- value of 0.499 was obtained in twine 4mm soaked in 100% diesel-oil concentration. Significant (P 〈0.05) relationships were observed between the correlation coefficient r = 0.531-0.927 for unpolluted and r = 0.499-0.592 for polluted tests. The study revealed that diesel-oil spillage had negative effects on the quality of twines. The thicker the PVA twine diameters (10, 8, 6 and 4mm) at lowered (0%, 20%, 40%,60%,80% & 100%) diesel-oil spillage of fresh (0.4ppt), Brackish (25ppt) and Marine (37ppt) waters respectively, the higher the significant (P〈0.05) elongation (cm) and breaking load (kgt) were evaluated in most cases.
    Description: Includes: 4 tables.;Also includes: 12 references.
    Keywords: Conservation ; Fisheries ; Nigeria ; Ogun State ; Diesel-Oil ; PVA synthetic fishing twine ; Freshwater ; Brackishwater ; Marine water ; brackishwater environment ; freshwater environment ; marine environment ; Fuels ; Crude oil ; Synthetic fibres ; Yarns ; Saline water ; Fresh water ; Brackish water ; Netting materials ; Gear research ; Tensile strength ; Materials testing ; Comparative studies
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  • 177
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    Effects of NIOMR smoking kiln and oven on the crude protein, minerals and vitamins of catfish Clarias gariepinus (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24197 | 19325 | 2018-05-16 15:16:21 | 24197 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The effects of two different preservative methods, NIOMR Smoking Kiln and Oven drying on Crude Protein minerals and Vitamin of clarias gariepinus were studied. Clarias gariepinus were obtained from the fish farm of African Regional Aquaculture Centre, Aluu, Port Harcourt. The crude protein, minerals and vitamins of the fresh fish were determined immediately while two other batches were separately dried using oven at 50~'C for 30minutes and NIOMR Smoking Kiln at 70~'C for 3 hours. Result of the crude protien of fresh fish was 21.84 ~c 1.10 which increased to 59.53 ~c 1.88 and 35.41 ~c 1.00 in both NIOMR smoking and oven, respectively. This means that, there was a significant different in both dryers on the crude protein. This will improve the knowledge and capacity of rural women and agricultural communities on the appropriate processing method for fish. The mineral and vitamins of oven dried and NIOMR Smoking kiln were analyzed. The vitamin content of both the fish, dried and smoking kiln shows no significant different except in vitamin A which was significant (p〈0.05).There was significant different (p〈0.05) in the mineral content of the two different drying method except in sodium, Potassium and Phosphorus of the drying method. This result indicates that the two drying methods have effects on the nutritional quality of catfish.
    Description: Includes: 2 tables and 1 figure.;Also includes: 7 references.
    Keywords: Fisheries ; Clarias gariepinus ; Nigeria ; Port Harcourt ; Smoking ; Production ; Preservative research ; Quality ; freshwater environment ; Processing fishery products ; Freshwater fish ; Proteins ; Vitamins ; Minerals ; Cured products ; Quality assurance ; Aquaculture equipment ; Nutritive value ; Drying ; Methodology ; Comparative studies
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  • 178
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    Fatty-acid composition of Macrobrachium vollenhovenii in Ogun estuary, Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24200 | 19325 | 2018-05-16 15:22:08 | 24200 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: A study was carried out on the fatty-acid composition of Macrobrachium vollenhovenii (African river prawn) in Ogun estuary, Ogun State, Nigeria. Sexes and size groups were considered during the study. Fatty-acid analysis was done in triplicates and data obtained were analyzed using descriptive statistics, analysis of variance and Duncan's multiple range tests. Fatty acids analysed which included oleic acid, linoleic acid,' stearic acid, myristic acid, palmitic acid and lauric acid were classified into saturated and monounsaturated fatty acids. All values of saturated fatty acids were higher in female (29.64%) than in male (25.50%) p〈 0.05. So also the monounsaturated fatty acid also showed higher value in female (29.64%) than in male (25.50%). All fatty- acid values were higher in female M. vollenhovenii than in male. Meanwhile, myristic acid was highest in the two sexes and the combined sexes, (35.68% female), (33.14% male) and (34.74% combined sexes). The fatty-acid components were not influenced by the size of the fish. This study clearly indicated that the nutritive value of M. vollenhovenii is quite well comparable to the edible species of decapods already studied (shrimps, prawns and lobsters) and could be included in both human and livestock diets.
    Description: Includes: 2 tables and 1 figure.;Also includes: 10 references.
    Keywords: Fisheries ; Macrobrachium vollenhovenii ; Nigeria ; Ogun Estuary ; Fatty ; Composition ; Macrobrachium ; Ogun ; Estuary ; freshwater environment ; Shrimp fisheries ; Acidity ; Fatty acids ; Estuarine fisheries ; Chemical composition ; Nutritive value ; Sex ratio ; Males ; Females ; Freshwater crustaceans ; Human food ; Feed
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    Gut contents and feeding pattern of Macrobrachium vollenhovenii (Herklots, 1857) and Caridina africana (Kingsley, 1882) at Asejire Lake and Erin-Ijesa waterfalls, South Western Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24207 | 19325 | 2018-05-19 06:38:21 | 24207 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: A study with intent towards acculturation was carried out on the gut conients and feeding patterns of Macrobrachium vollenhovenii and Caridina africana occurring at Asejire lake and Erin-Ijesa Waterfalls respectively for two years using numerical abundance and frequency of occurrence methods of analysis. There was a strong correlation (p〈0.05) between prawn abundance and food availability, The gut content analysis of M. vollenhovenii revealed that juveniles were predominantly zooplanktivorous, feeding on copepods and rotifers while the adults were omnivorous, utilizing a wider variety of animal foods than plant materials. This changing of diets and patterns as the species advances in age has an implication for its culture potentials. Stomach fullness index was high during the wet season which coincided with high abundance of prawns, C. africana fed mainly on diatoms, zooplankton and other micro-phytoplankton, thus an onmivore with herbivorous tendency. The availability of both species in fresh water bodies and their foods revealed that both species can be cultured in earthen ponds since their unspecialized flexible dietary habit is an optimal strategy for sustained productivity.
    Description: Includes: 3 tables and 1 figure.;Also includes: 12 references.
    Keywords: Aquaculture ; Ecology ; Fisheries ; Macrobrachium vollenhovenii ; Caridina africana ; Nigeria ; Asejire L. ; Nigeria ; Erin-Ijesha waterfalls ; Macrobrachium vollenhovenii ; Caridina fricana ; Gut content ; Accumulation ; Asejire Lake ; Waterfalls ; freshwater environment ; Shrimp fisheries ; Lake fisheries ; Animal nutrition ; Abundance ; Frequency ; Food availability ; Zooplankton ; Stomach content ; Breeding ponds ; Shrimp culture ; Food organisms ; Feeding behaviour
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    Effects of freezing on the proximate composition and sensory quality of stored African catfish (Clarias gariepinus) and tilapia (Oreochromis niloticus) (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24189 | 19325 | 2018-05-16 14:59:40 | 24189 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The objective of this study was to determine the quality deterioration of African catfish Clarias gariepinus and Tilapia, Orechromis niloticus stored at-4~'C for 8 weeks. Weekly analysis was conducted to measure protein, moisture, crude fat and ash content and evaluation of the sensory quality. The result clearly reveals that during storage, both the samples showed a highly significant (p〈0.05) decreasing trend in protein, lipid, ash and moisture content. The result shows that protein, moisture, fat and ash content of the fish samples decreases with increasing duration of frozen storage. The fresh samples has the highest value of protein, moisture, fat and ash content while the least value was recorded on the 8th week. 19.98 ~c 2.66%, 80.71 ~c 1.65%, 3.92 ~c 0.5% and 2.52 ~c were recorded for freshly prepared Clarias gariepinus respectively while 12.62 ~c 1.22%, 66.86 ~c 0.68%, 1.08 ~c 1.04% and 1.14 ~c 0.33% were recorded on the 8th week respectively. 20.80 ~c 1.46, 60.75 ~c 2.50, 9.75 ~c 2.50% and 5.85 ~c 2.51% were recorded for freshly prepared Oreochromis niloticus respectively while 25.05 ~c 2.20%, 47.60 ~c 2. 15%, 7.1 ~c 0.20 and 3.00 ~c 2.10% were recorded on the 8th week respectively. After 8 weeks, the total decrease was 7.36%, 13.85%, 2.84% and 1.38% respectively for Clarias gariepinus and 3.75%, 13.45%, 2.65% and 2.85% respectively for Oreochromis niloticus. Sensory evaluation of the fish samples revealed that quality, texture, colour, odour, aroma and taste decrease with increasing duration of storage and best quality obtained when freshly prepared.
    Description: Includes: 4 tables.;Also includes: 11 references
    Keywords: Fisheries ; Clarias gariepinus ; Oreochromis niloticus ; Nigeria ; Owo ; Frozen ; Fish ; Quality ; Sensory ; Evaluation ; Processing ; freshwater environment ; Chemical composition ; Freshwater fish ; Receptors ; Deterioration ; Quality assurance ; Fish storage ; Freezing storage ; Nutritive value ; Microorganisms ; Enzymatic activity ; Processing fishery products ; Storage effects ; Organoleptic properties ; Temperature effects
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    Toxicity of oil-based drilling mud (OBM) on the survival of the fingerlings of Niger Delta mudskipper, Periophthalmus papilio (Boch and Schneider, 1801) (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24221 | 19325 | 2018-05-19 07:04:22 | 24221 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The toxicity of oil - based drilling mud on the survival of the fingerlings of Niger Delta mudskipper, Periophthalmus papilio were studied using static plastic tanks. The exposure period lasted for 96 hours. Lethal concentration (LC50) and lethal time (LT50) were determined. The control tanks contained no oil- based drilling mud. Results revealed increased in mortality values of the fish to all lethal concentrations. There was no mortality observed in the control tank. The oil- based drilling mud were toxic on Periopthalmus papilio.
    Description: Includes: 13 references.
    Keywords: Fisheries ; Pollution ; Periophthalmus papilio ; Nigeria ; Rumuche River ; Drilling fluid ; Mortality ; Lethal concentration (LCsub50/sub) ; Bioassay ; freshwater environment ; Toxicity ; Drilling platforms ; Drilling ; Mud ; Fingerlings ; Freshwater fish ; Survival ; Pollution effects ; Mortality ; Lethal effects ; Drilling fluids ; Experimental research ; Toxicity tests
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    Microbiological status of water and fish samples from Jabi Lake, Abuja (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24224 | 19325 | 2018-05-19 07:11:26 | 24224 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: Jabi Lake is a natural water body in Abuja Federal Capital Territory (FCT). It was expanded for commercial fishing following relocation of Nigeria's headquarters to Abuja in 1993. Quantitative analysis of microbiological status of water and fish from the Lake was carried out. Samples were collected from the dam site, open water, middle lake and inlet. Result reveal that total coliform count which are indicators of pollution are high (2.0 x 103 cfu/ml, 1.1 x 103 cfu/ml, 1.0 x 103 cfu/ml and 1.1 x 103 cfu/ml for dam site, open water, middle lake, and inlet respectively). Total viable count too is high (9.2 x 103 cfu/ml, 4.9 x 103 cfu/ml, 4.6 x 103 cfu/ml and 4.9 x 103 cfu/ml for dam site, open water, middle lake and inlet respectively). There are no coliform bacteria in the muscle of the fish. High bacterial load is an indication of biological pollution and these calls for restraint on the side of those who are using the lake as site for refuse dump.
    Description: Includes: 10 references.
    Keywords: Fisheries ; Pollution ; Nigeria ; Jabi Lake ; Jabi lake ; Water ; Fish ; Bacteria ; freshwater environment ; Microbiology ; Fish ; Pollution ; Water pollution ; Lake fisheries ; Fishery surveys ; Bacteria ; Baseline studies ; Water sampling ; Microbial contamination ; Muscles ; Freshwater fish ; Pollution surveys ; Water analysis ; Freshwater pollution
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    Solar drying: an alternative to fish drying - a review (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24198 | 19325 | 2018-05-16 15:18:03 | 24198 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: Energy is one of the main concerns for the future development of any nation. It is by far the largest merchandise in the world and an enormous amount of it is extracted, distributed, converted and consumed in our global society daily .One major problem regarding agricultural produce is related to the product storage in the harvesting season, and identifying an alternative to marketing fresh produce. A useful option is to prevent wastage of produce by drying, using solar energy. In this regard, solar dryer for domestic as welI as industrial usage could be an effective alternative of saving conventional energy. Utilization of solar thermal energy through solar dryer is relatively in a nascent state in our country. This paper gives a description of the efforts made under several researches to design and develop some types of solar dryers.
    Description: Includes: 23 references.
    Keywords: Fisheries ; Environment ; Nigeria ; Makurdi ; Solar drying ; Dryres ; Drying methods ; Drying system ; Solar dryer ; freshwater environment ; Drying ; Fishery products ; Energy ; Processing fishery products ; Utilization ; Storage ; Aquaculture equipment ; Conservation
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    Shrimp by-catch species from industrial shrimp trawl fisheries in Lagos, Nigeria coastal waters (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24199 | 19325 | 2018-05-16 15:19:23 | 24199 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: A fisheries-dependent surveys was conducted to identify and quantify the species composition of shrimp by-catch and its effect on fishery sustainability. Samples were bought monthly, from October 2009 to June 2010 from landings site, at Apapa-Liverpool market Lagos. 25 fish species belonging to 18 families targeted in other inshore fisheries constituted the by-catch species. The percent of weight compositions of some economically important by-catch species were: Pseudotolithus senegalensis (5.76%),Ilisha africana (14.65%), Pentanemus quinquarius (2.94%), Pteriscion peli (6.60%), Galeoides decadactylus (3.17%), Cynoglossus senegalens is (6.76%) and Chloroscombrus chysurus (10.81%). About 80% of the shrimp by-catch species were juvenile fin fish. However, continuous harvest without appropriate mitigating measures poses a threat to sustainability of coastal capture fisheries. Recommendations are proffered in order to conserve the resources for sustainable development.
    Description: Includes: 1 table.;Also includes: 8 references.
    Keywords: Fisheries ; Pseudotolithus senegalensis ; Ilisha africana ; Pentanemus quinquarius ; Galeoides decadactylus ; Cynoglossus senegalensis ; Chloroscombrus chysurus ; ASE ; Nigeria ; Lagos Lagoon ; By-catch ; Coastal ; Shrimp trawl ; Fisheries ; Industry ; marine environment ; Shrimp fisheries ; Fishery surveys ; By catch ; Check lists ; Sustainability ; Resource conservation ; Trawl nets ; Coastal fisheries ; Artisanal fishing
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    Fisheries and tourism potentials of Agbokim waterfalls, Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24196 | 19325 | 2018-05-16 15:14:22 | 24196 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: Human activities in natural environments are among the most important recreational needs. Monthly studies of tourism characteristics was conducted during wet and dry seasons, over a two year period in the three landscapes along the 6817.7m length of Agbokim waterfalls by using a close-ended pre-coded survey instrument. Through MANOVA analysis of the 1780 respondents, we found strong positive association between peoples visits to the recreational areas and the type of landscape in which the respondents felt happy. People who felt happier in landscape dominated by waterfalls, visit the middle reaches of the river for outdoor recreation more often, while people who feel happy in landscapes dominated by slow water current with an extensive wide area and floodplains, visit downstream reaches of the waterfalls more often. Activities performed more often along downstream reaches include fishing, bathing/swimming, boating and hunting while more frequent activities in the middle reaches (waterfalls) include taking photographs, picnics, enjoying nature, outing with family and friends, looking at view, resting and relaxing.
    Description: Includes: 1 table.;Also includes: 18 references.
    Keywords: Fisheries ; Law ; Nigeria ; Cross River ; Agbokim waterfalls ; Fishing activities ; Recreational activities ; Landscape ; Waterfalls ; freshwater environment ; Fisheries ; Tourism ; Recreation ; Water bodies ; Surveying equipment ; Seasonal variations ; Bathing ; Current observations ; Fishing ; Sociological aspects
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    Length-weight relationships of Hyperopisus bebe occidentalis in Zaria Dam (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24631 | 19325 | 2018-05-22 06:33:31 | 24631 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The morphometric parameters of 54 Hyperopisus hebe occidentalis obtained from Zaria Dam were investigated. The length occidentalis examined ranged from 18.9-41.0 cm and weight ranged from 25-425g, the largest male weighed 175g while the female was 425g. The length-weight relationship of H. Bebe occidentalis in Zaria showed a positive correlation (r=0.897) in both regression exponent (b〉3) for both sexes showed positive allometric growth pattern. The mean condition factor obtained (0.95- 1.26). In both sexes, the condition factor generally increased with increase in individual size of the fish irrespective of sex but slightly in male than female.
    Description: Includes: 13 references.
    Keywords: Ecology ; Fisheries ; Hyperopisus bebe ; Nigeria ; Zaria Dam ; Microbiological ; Proximate analysis ; Biochemical characterization ; S. nigrita ; Mormyruss ; C nigrodigitatus ; freshwater environment ; automation
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    Comparison of microbiological and proximate analysis of Synodontis nigrita, Chrysichthys nigrodigitatus and Mormyrus rume in Olomore market, Abeokuta, Ogun State, Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24632 | 19325 | 2018-05-22 06:35:03 | 24632 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The study was carried out to compare the microbiological and proximate analysis of fresh Synodontis nigrita, Mormyrus rume and Chrysichythys nigrodigitatus sold at Olomore market, Abeokuta, Ogun State. This fish are always available at Olomore market and other market around Abeokuta and its environment. The protein, carbonhydrate, moisture, and ash of the fishes was based on the method of analysis of the Association of Official Analysis (AOAC:1990). Data for each sp. were subjected to analysis of variance (ANOVA). The Results show no significant difference in moisture content of Chrysichthys nigrodigitatus (70.99 ~c 1.09%), Mormyrus rume (67.30 ~c 4.08%) and Synodontis nigrita (67.33 ~c I.99%). The crude protein content of Chrysichthys nigrodigitatus (12.10 ~c 0.74%) Mormyrus rume ( 15.48 ~c 1.63%) and Synodontis nigrita (I0.73 ~c 0.61%). For carbohydrate content we have Chrysichthys nigrodigitatus (1.15 ~c 0.13%9), Mormyms rume (2.09 ~c 0.20%) and Synodontis nigrita (2.04 ~c 0.10%). Fat content of Chrysichthys nigrodigitatus (7.15 ~c 1.29%) Mormyrus rume (8.97 ~c I.9%) and Synodontis nigrita (8.62 ~c 0.89%) and for ash content of Chrysichthys nigrodigititus (6.33 ~c 0.69%), Mormyrus rume (4.89 ~c 0.21%) and Synodontis nigrita (8.85 ~c 0.27%). For crude protein there was different (p 〈 0.05) same with fat content, ash content, and carbohydrate content (p〈 0.05) unlike moisture content and dry matter content which is (28.57 ~c 1.55%), (32.50 ~c 4.08%) and (32.67 ~c 1.99%) in Chrysichthys nigrodigitatus, Mormyrus rume and Synodotis nigrita. Result showed total bacteria count from (1.9 to 3.8 x 10〈sup〉6〈/sup〉 cfu/ml) from Chrysichthys nigrodigitatus while (2.8 to 4.7 x 10〈sup〉6〈/sup〉 ur cfu/ml) was obtained for Synodontis nigrita and (2.6 to 3.8 X 10〈sup〉6〈/sup〉cfu/ml) for Mormyrus rume. The micro-organism isolated were pseudomonas spp; Escherichia spp; Klebsiella spp; omomls spp, Escherichia spp., Klebsiella spp., Staphylococcus spp., Proteeus spp. and Micrococcus spp. On biochemical characterization the following bacteria was isolated Pseudomonas spp., Escherichia spp., Klebsiella, spp. staphylococcus spp., Proteus Micrococcus spp.
    Description: Includes: 44 references.
    Keywords: Ecology ; Fisheries ; Chrysichthys nigrodigitatus ; Mormyrus rume ; Synodontis nigrita ; Nigeria ; Haematology ; Sex-reversal ; Growth paramwters ; Nutrient utilizatio ; S. melanotheron ; freshwater environment ; automation
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    Preliminary studies on some physico-chemical parameters and fish species composition of Doma Dam, Nasarawa State, Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24638 | 19325 | 2018-05-24 09:36:38 | 24638 | Fisheries Society of Nigeria
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    Publication Date: 2021-07-15
    Description: Study of some Physico-chemical parameters and fish species composition of Doma Darn was carried out between the month of August 2012. Fishing communities along the dam were selected at sampling stations and collection of fish species. The values of physico-parameters obtained for stations were in the range of 28.10-92 m for depth, 27.70-28.48~'for temperature, 7.03-7.64 for PH, 7.23-7.64mg/l for dissolved oxygen (DO), 30.08-31.75 ntu for turbidity, 94.64-105.17mg/l for alkalinity and 79.17-80.58mg/l for total hardness. The result indicated that there was significant difference (p〈0.5)for depth, temperature turbidity and alkalinity, while there was no significant difference (p〈0.05) for DO, pH and water hardness among the stations. The result of these parameters among the duration shows that there was significant different (p〈0.05) in all the parameters except pH. The study revealed that there were twenty-five (25) fish species belonging to 12 families in the dam. The family Cichlidae and Mochokidae and Bagridae which has three each, While the family, Polypteridae, Channidae, Centropomidae, flepsetidae and Protopteridae has the lowest number of one (1) each. The overall result revealed that the Phvsico-chemical parameters were mostly influenced by duration and not much by stations; and parametersoaram measured were within the recommended water quality requirement for growth and survival of aquatic organisms.
    Description: Includes: 10 references.
    Keywords: Chemistry ; Fisheries ; Nigeria ; Doma Dam ; Doma Dam ; Fishing community ; Physico-chemical parameter ; Fish species ; freshwater environment ; automation
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    Climate change and the challenges of fisheries resources management in Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24642 | 19325 | 2018-05-24 09:44:51 | 24642 | Fisheries Society of Nigeria
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    Publication Date: 2021-07-15
    Description: This paper takes a practical look at the challenges faced by fisheries resources in Nigeria due to climate change. It shows that Chad which produce 60% of smoked fish in Nigeria worth N2.6 billion is at the brink of extinction and is expected to dry to a mere 2000 sq km by year 2010 from over 25,000sq km in the 1960s. In simple clear terms, the paper gives practical adaptation and policy to face the challenges of climate change.
    Description: Includes: 11 references.
    Keywords: Environment ; Fisheries ; Nigeria ; freshwater environment ; automation
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    Communication strategies / matrix for stakeholders' adaptation to climate change issues in Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24664 | 19325 | 2018-05-27 15:01:44 | 24664 | Fisheries Society of Nigeria
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    Publication Date: 2021-07-15
    Description: Over the years, man has exploited the ocean and its resources for sustainable livelihood. Man's indigenous and traditional knowledge has been the mainstay and guidance in exploiting the ocean and coastal resources. However, as industrialization and other climate conditions set in to alter or modify the productivity of the ecosystem, there has been a lot of concern by international, regional and local authorities to continuously study the prevalence of these factors and triggers off these climatic changes and their impacts on livelihood of fisherfolks at the industrial or artisanal level of fishing and other fisheries activities like fish farming and fish processing. A quantum of technical and scientific information on the ocean and interactions with other elements have been archived in various libraries, information centers and on the internet. These channels provide information for only those who can access them for policy formulation but cannot actually reach those who will benefit or implement the issues discussed in the policy documents for their livelihood. Meteorological data are reported in technical terms. Figures and other illustrations cannot be utilized by the average artisanal and industrial fishermen for the rational exploitation of the ocean resources. The woman fish processor who uses solar dryer may not be able to relate the weather condition and why her fish cannot dry at the normal time. There are times natural phenomenon like change in the direction of or its intensity can be interpreted by a fisherman as the handwork of his enemy to thwart his fishing effort for that day. Oceans sourge causes and its possible displacement of coastal dwellers might not be fully comprehended by those living in coastal communities. There is the need therefore to develope a communication and outreach strategies using a simple communication matrix for easy articulation of approaches to communicating with all potential and identified stakeholders in Climate change and its effects on stakeholders. This paper therefore discusses some of the climatic conditions and factors that affects the ocean, coastal areas and their productivity. It particularly focuses on communication strategies of information, educating and entertaining in reaching out to identified stakeholders on climate impacts for its rational exploitation and improved income for better standard of living. It finally produced a simple applicable communication matrix for reaching out to all stakeholders in Climale change and its impacts.
    Description: Includes: 10 references.
    Keywords: Pollution ; Fisheries ; Nigeria ; freshwater environment ; automation
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    Preliminary study on the antioxidative and anti-fungal effects of ginger oil on the shelf life of hot smoked fish (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24670 | 19325 | 2018-05-23 07:45:45 | 24670 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The anti-oxidative and anti-fungal effects of ginger oil on smoked Chrysichthys nigrodigitatus, Clarias gariepinus and Oreochromis niloticus was examined during five week storage at room temperature (25-30)~'C. The ginger oil was extracted from fresh ginger through hydro-distillation. The fish samples were gutted washed thoroughly and each fish species was divided into three groups. Two groups were spiced with 1.0ml and 1.5ml of ginger oil/kg of fish respectively before they were smoke dried for 2 hours. The third group acts as the control which was not spiced with ginger oil. Chemical and microbiological analyses were performed to investigate quality changes, and to determine the shelf stability of the products. The lowest TBA (14.64 mg MDA/kg), and Peroxide (3.91 mEq/kg) values were recorded in 0. niloticus samples treated with 1.5ml ginger oil/kg of fish at week 1, while the highest TBA (30.48 mg MDA/kg), and PV (18.76 mEq/kg) occurred in the C. gariepinus control at week 5. The result also revealed that samples treated with ginger oil had lower mould count than the control, but there was no significant different (P~.0.05), when compared to the control after 5 weeks of storage.
    Description: Includes: 21 references.
    Keywords: Fisheries ; Nigeria ; Catfish ; Ginger ; Peroxide ; Quality ; Smoked ; Storage ; Thiobarbituric acid ; freshwater environment ; automation
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    Technical Compilation of Heavy Metals, Pesticide Residues, Histamine and Drug Residues in Fish and Fish Products in Southeast Asia, 2004~2008 (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26250 | 23782 | 2019-03-13 02:17:52 | 26250 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The 203-page book compiles the baseline information on the current situation of chemical and drug residues in seafood in some Southeast Asian countries. The information is based on the regional surveys undertaken by SEAFDEC/MFRD under the project on “Chemical and Drug Residues in Fish and Fish Products in Southeast Asia.”
    Keywords: Fisheries ; Pollution ; Heavy metals ; Pesticides ; Histamines ; Drugs ; Chemical pollution ; Fish ; Fishery products
    Repository Name: AquaDocs
    Type: book
    Format: application/pdf
    Format: application/pdf
    Format: 203
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    Regional survey of heavy metals in fish and fish products: Cambodia (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26290 | 23782 | 2019-03-13 01:43:47 | 26290 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Pollution ; Cambodia ; Heavy metals ; Chemical pollution ; Pollution monitoring ; Pangasianodon hypophthalmus
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 7-9
    Format: 3
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  • 194
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    Regional survey of heavy metals in fish and fish products: Vietnam (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26296 | 23782 | 2019-03-22 05:28:42 | 26296 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Viet Nam ; Heavy metals ; Biological sampling ; Fish ; Fishery products ; Seafood
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 59-64
    Format: 6
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  • 195
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    Regional survey of pesticide residues in fish and fish products: Vietnam (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26304 | 23782 | 2019-03-27 03:53:19 | 26304 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Aquaculture ; Chemistry ; Fisheries ; Viet Nam ; Pesticides ; Cultured organisms ; Biological sampling ; Fish ; Fishery products ; Lethal limits
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 106-109
    Format: 4
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  • 196
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    Regional survey of chloramphenicol, nitrofuran, malachite green and leuco-malachite green in fish and fish products: Malaysia (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26314 | 23782 | 2019-03-27 06:26:14 | 26314 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Chemistry ; Fisheries ; Malaysia ; Drugs ; Biological sampling ; Biochemical analysis ; Quality control ; Lethal limits ; Penaeus monodon
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 156-159
    Format: 4
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  • 197
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    Regional survey of histamine in fish and fish products: Cambodia (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26306 | 23782 | 2019-03-27 03:30:25 | 26306 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Cambodia ; Histamines ; Biological sampling ; Fish ; Fishery products
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 113-115
    Format: 3
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  • 198
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    Development of fish processing technology in relation to quality management in Indonesia (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26688 | 23782 | 2019-08-09 03:12:10 | 26688 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: The fishery industry in Indonesia comprise domestic-based traditional fish products factories and export-oriented companies. The traditional processing units are usually operated by small to medium-scale processors while the export-oriented products are mostly operated by means of advanced technology. The traditional processing units are predominantly engaged in fish curing such as salting and drying, smoking, steaming/boiling and fermentation, whereas modernised industries usually produce products for export purposes, including handling of live and fresh or chilled shrimp and other fish products and frozen, canning factories, etc. The fish inspection and quality control programme includes the development of a standardization system, inspection of production facilities in terms of Good Handling, and/or Manufacturing and Hygienic Practices and inspection of product quality. The inspection and quality control policy consists of compulsory and supervisory approaches. The compulsory programme was manifested with certifications of a) GMP, which includes sanitary and hygienic status of plant; b) competence provided to in-plant processing technologist and quality control supervisors; c) quality or health for exported product and d) letter of origin/ quality for products transported and distributed inter-provincially. The application of quality management in the fishery industry, whether they are traditional or more modem and whether their products are for domestic or export markets, are all at different states of development. The processing plants are classified according to the degree of compliance for meeting prerequisite conditions. The plant must achieve at least "C+" rating to pass the inspection; those which fall under plant-rating of C- and D are considered to be in non-compliance and will go through the supervisory programme to correct deficiencies within a specified period. For the past five years, an Integrated Quality Management Programme (IQMP) based on HACCP concept adopted from the Canadian QMP, has been exercised by those fishery industries which meet the acceptable prerequisite conditions.
    Keywords: Fisheries ; Fishery industry ; Fishery technology ; Fishery products ; Fishery resources ; Inspection ; Quality control ; Legislation ; Indonesia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 42-49
    Format: 8
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    A simple way to maintain the fish processing industry (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26682 | 23782 | 2019-08-15 02:07:40 | 26682 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: This paper emphasizes that efforts in the upgrading of the fish processing industry in Southeast Asia should be directed at each country s traditional fish products. In the coming era, the increase in food production may not match the world s population growth. In this respect, the major challenge for the fish processing industry is the utilization of all fish caught. Emphasis on development of new products might be one area of responsibility. However, this paper stresses the importance of traditional fish products of each country because these products have survived many decades without any assistance from government or perhaps even society. In other words, there must be some reason for their existence. When fish technologists are able to help the traditional fish products industry, the industry will play a more powerful role in the future. This paper focuses on a simple and fast way of boosting the fish processing industry in the region by emphasizing on the upgrading of existing traditional fish products.
    Keywords: Fisheries ; Fishery industry ; Processing fishery products ; Fishery products
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 3-5
    Format: 3
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    World trend in surimi processing with respect to new technology and quality control (2021)
    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26684 | 23782 | 2019-08-15 01:55:35 | 26684 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Details
    Publication Date: 2021-07-24
    Description: 1. Internationalization and Diversification of Surimi IndustryIt is estimated that the world s surimi production in 1994 was 512,000 tonnes. Japan was the biggest surimi producer in the middle of 80 s, but the surimi production of Japan decreased to 132,000 tonnes in 1994. The USA started the commercial production of frozen surimi in Alaska in 1985 and became the biggest surimi producer in the world with 209,000 tonnes in 1994. Thailand started surimi production in 1978 and has increased its production to 65,000 tonnes in 1994. The success of the Thai surimi industry stimulated development of surimi production in other countries in the region. With an increase in the number of countries producing surimi, the fish species used for frozen surimi has been diversified. Of about 500,000 tonnes of frozen surimi in the world, the share of Alaska pollock surimi was 60% in 1994. The share of surimi from other fish such as whiting, threadfin bream, etc., has been increasing over the years.2. Intrinsic Quality of Frozen SurimiStability of the meat proteins (especially of myofibrillar proteins) against heat and frozen storage is species dependent. Protein stability of cold water species is much poorer than of temperate/tropical water species. The stability or the rate of denaturation of myofibrillar proteins is closely related to the temperature of the water in which the fish lives. Strict temperature control is required for surimi of Alaska pollock and other cold water species.3. Internationalization of Surimi-Based ProductsThe world production of surimi-based products in 1993 was estimated at 1,090,000 tonnes. The biggest kamaboko producer is Japan, followed by Korea, USA, Taiwan and Thailand. The production of imitation crab and seafood analogs began in the middle of the 70 s and are now manufactured throughout the world.4. Recent Trend of Kamaboko Products in JapanJapanese consumers now prefer softer textured foods than previously and pay more attention to healthy foods. Some of the successful soft textured products are made by incorporating isolated soy protein into surimi-based products.5. New Surimi-Based Product TechnologyVacuum grinding mixers have been introduced more and more into kamaboko processing plants in Japan. Imitation crab meat, scallop or squid with fine texture and juiciness as compared to conventional products are now produced by twin-screw extrusion cooking. Ohmic cooking, or Joule cooking, with heat generated by flowing electric current through the foods is becoming popular in the kamaboko industry. Proteinase inhibitors such as blood plasma are used for Pacific whiting surimi infected by Myxosporidian parasites.
    Keywords: Fisheries ; Minced products ; Processing fishery products ; Quality control
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 13-17
    Format: 5
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