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  • 1
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    Nutritional value of mango (Mangifera indica) seeds and peels (2021)
    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23344 | 19325 | 2018-04-08 11:33:10 | 23344 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: The nutritional value of peels and' ~eds' 9f Mango, Mangifera indica was studied by analyzing collected samples of these non conventional feedstuffs for their proximate composition. The result of the analysis shows that moisture ranged from 9.70 to 10.48% (peels) and 9.50 to 10.48% (seeds). Protein ranged from 4.08 to 4.49% (peels) and 5.38 to 8.10% (seeds). Carbohydrate was 49.35 to 62.45% (peels) and 53.64 to 70.58%' (seeds). Fat ranged from 3.98 to 6.30% (peels) and 8.30 to 12.80% (seeds. Ash content ranged from 2.20 to 4.98% (peels) and 2.00 to 3.70% (seeds). The values for the proximate parameters of the peels and seeds were comparable to values reported for other non convectional feedstuffs. The seeds of ti1'ango had higher values than peels.
    Description: Includes:- 3 tables.;1 fig.;20 refs.
    Keywords: Aquaculture ; Nigeria ; Mango ; freshwater environment ; Nutritive value ; Carbohydrates ; Chemical composition ; Feed composition ; Chemical analysis
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 90-93
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  • 2
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    Fish trading: a tool for socioeconomic enhancement and poverty alleviation (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23519 | 19325 | 2018-05-08 15:49:39 | 23519 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: A study was conducted in Abeokuta, the Ogun State capital with the objective to investigate if fish trading could be a tool of poverty alleviation and socio-economic enhancement of the status of women in the household. A total of 120 correctly completed, structured and pre-tested questionnaires, out of the 150 administered to respondents, were retrieved for data analyses. Demographic data of the traders showed that all the respondents were women whose ages ranged from 15 to above 45 years. The ages of 33-45 years constituted 33.3% of the respondents while the age bracket of between 27-32 years constituted 23.3%. Majority (73.3%) were married while 25% were single-headed households (divorced or widowed). The study revealed that most of the respondents (approximately 61%) were able to meet their family expenditure jointly with their spouses while 28.3% of the respondents met the financial responsibilities of their families solely from the profit. Access to credit was found to be a major limitation. The study further revealed that 86.7% of the respondents would like to continue with the business because they were satisfied with the profit accruable to them from the trade.
    Description: Includes:- 3 tables.;19 refs.
    Keywords: Management ; Fisheries ; Nigeria ; Abeokuta ; Poverty alleviation ; freshwater environment ; Marketing ; Market research ; Women ; Fisheries
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 619-624
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  • 3
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    Morphometric features and proximate body composition of rocky freshwater prawn (Caridina africana, Kingsley 1882) at Erin-Ijesa waterfalls, Osun State Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24209 | 19325 | 2018-05-19 06:41:34 | 24209 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: An investigation was conducted on the morphometric features and proximate body composition of rocky freshwater prawn, Caridina africana occurring at Erin-Ijesa Waterfalls in Osun State, Nigeria. The adult prawns were collected at the first layer of the Waterfalls using scoop nets and locally fabricated sieves because of the shallow nature of the water body and tiny size of the species. Morphometric features were measured using measuring board and Vernier calipers while the proximate analysis was determined by atomic absorption spectrophotometry in the laboratory. The morphometric variables placed the species correctly into the Infra order Caridea and family Atyidae because the first and second chelipeds were shorter than the remaining three pairs of walking legs. Male prawns were significantly bigger (p〈0.05). than the females as revealed in the morphometric features. The proximate analysis showed that C. africana is composed of 58.79% protein, 5.42% lipid, 11.56% carbohydrate, 14.7% ash and 0.21 % crude fibre. The micro-nutrient composition included iron, zinc, copper, nickel and cadmium. The values for these nutrients make the study to suggest that C. africana could be a nutritive food bio-material for humans and other livestock nutrition especially the fin-fish aquaculture programme.
    Description: Includes: 2 tables.;Also includes: 11 references.
    Keywords: Biology ; Fisheries ; Caridina africana ; Nigeria ; Erin-Ijesa waterfalls ; Morphometrics ; caridina africana ; Proximate composition ; Micrinutrient ; Erin-Ijesa waterfalls ; freshwater environment ; Morphometry ; Biochemical analysis ; Shrimp fisheries ; Body conditions ; Nutritional requirements ; Nutritive value ; Lake fisheries ; Artisanal fishing ; Males ; Females
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 228-230
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  • 4
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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
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 250-253
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  • 5
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    Effects of atrazine on Nile tilapia (Oreochromis niloticus) (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24616 | 19325 | 2018-05-22 06:07:52 | 24616 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: Mechanization of agriculture to promote and improve the yields from agricultural practices has necessitated the use of pesticides and other agrochemicals. The effects of using these pesticides on the environment are rarely considered by farmers. This study investigated the effects and sub-lethal effect of atrazine on tilapia, an ubiquitous culturable fish species. The 96 hr LC50 was determined using static renewal bioassay method while the effect on haematological parameters was determined after exposure for 3 weeks to sub-lethal doses of atrasine. The LC50 was found to be 6.977mg/l. Sub-lethal exposure resulted in anaemia and increased the white blood cell counts.
    Description: Includes: 11 references.
    Keywords: Aquaculture ; Pollution ; Oreochromis niloticus ; Nigeria ; Nile tilapia ; Atrazine ; Lethal ; Sub-lethal ; freshwater environment ; automation
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 197-199
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  • 6
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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
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 266-271
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  • 7
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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
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 219-222
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  • 8
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    Whole rocky fresh water prawns, Caridina africana as replacement for fish meal in diets for African catfish (Clarias gariepinus) (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24658 | 19325 | 2018-05-27 14:53:28 | 24658 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: Specimens of Caridina africana were oven dried at 110~'C for 24 hours and refrigerated at 200~'C prior to proximate analysis. Whole rocky freshwater prawn meal (WRFWPM) was evaluated as a dietary replacement for fish meal in the diet of C. gariepinus fingerlings. The diets were fed to triplicate groups of C. gariepinus fingerlings (10.6 ~c 0.08g) reared in concrete tanks, to assess the effects of its partial or complete replacement with fish meal for 90 days. The diets comprised a control which contained fish meal as a protein source; 0% and four others on weight basis at 25%, 50%, 75% and 100% in which fish meal was progressively substituted with WRFWPM. The crude protein content was 40% and fed at 4% body weight of the fish per day. Results shows that the daily body weight gain, feed conversion ratio, protein efficiency ratio and protein productive values were highest in diet with 50% replacement, closely followed by diet with 25% replacement. All parameters were significantly different for all diets (p〈0.05). Higher dietary inclusion WRFWPM of 75% and 100% led to decrease in growth performance and nutrient utilization of C. gariepinus fingerlings. The cost WRFWPM was significantly lower than that of fish meal. Though the economic viability of C. africana is yet to be evaluated due to its tiny size; its substitution as a fish meal replacer in the diet of C. gariepinus is considered profitable.
    Description: Includes: 25 references
    Keywords: Aquaculture ; Ecology ; Clarias gariepinus ; Nigeria ; C. africana ; C. gariepinus ; Prawn ; Digestibility ; Replacement ; Proximate ; freshwater environment ; automation
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 366-369
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  • 9
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    Economic potentials of Iken brush park fishing practice in Iwopin Lagoon, Ogun State, Nigeria (2021)
    In:  http://aquaticcommons.org/id/eprint/865 | 6 | 2011-09-29 21:29:33 | 865 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-03
    Keywords: Fisheries ; Nigeria ; Iwopin Lagoon ; Ogun State
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 126-130
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