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  • 1
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    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/22997 | 19325 | 2018-03-05 09:06:04 | 22997 | Fisheries Society of Nigeria
    Publication Date: 2021-07-12
    Description: Studies on the effects of crude oil and its fractions on the blood haemoglobin (HB) neutrophil (NP) concentration in the blood of Heterobranchus bidorsalis juveniles were carried out. Two study periods (toxicity and recovery) and four oil types (Bonny-light crude oil (BLCO), premium motor spirit (PMS), kerosene (DPK) and lubricating engine oil (lBO) at 1.00, 2.00, 4.00 and 8.00ml were used. There were significant differences (P〈0.05, p〈 0.01) on the HB and NP values in blood of fish samples. The elevated values of HB levels in fish exposed to 2.00,4.00 and 8.00m1 L-1 BLCC, 2.00ml L-1 PMS and DPK; and 4.00ml L -1 LBO over the levels in the control fish were in consonance with the results of other workers. Increases in NP values in fish exposed to the four oil types (BLCO, PMS, DKP and LBO) relative to the control could be part of the immunological attempts by the fish to mobilize the body's defence mechanisms. The relatively high percent mortality and low survival of H. bidorsalis juveniles exposed to 4.00 and 8.00mlL-1 concentration of the four oil types over the other concentration implied that these concentrations were probably lethal to fish existence.
    Description: Includes:- 4 tables.;23 refs.
    Keywords: Fisheries ; Health ; Pollution ; Heterobranchus bidorsalis ; Nigeria ; Delta State ; freshwater environment ; Crude oil ; Fish ; Toxicity ; Haemoglobins ; Lethal effects
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 152 - 159
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  • 2
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    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/23001 | 19325 | 2018-03-05 09:29:09 | 23001 | Fisheries Society of Nigeria
    Publication Date: 2021-07-12
    Description: The importance of information in every sector cannot be over-emphasized. The ability to identify and utilize our natural endowment depends on the availability of information resources within or at the right time. The low level of information provision in Nigeria is attributed to infrastructure as a result of inadequate funding of the sector. Research has shown that information has revolutionized the society, moving the world from the industrial age to the information age and completely changing the way the economy functions. Success goes with the best information. However, for now, if there must be increase in fish production and eco-tourism participation, employment opportunities, poverty reduction, food security and nature appreciation in terms of environment and living creatures, our fisheries scientists and policy makers will have to rely on sources of information using the advantage of libraries, and Information Communication Technology (lCT). This development in information resources affects many areas of Nigerian economy including the fisheries and eco-tourism sectors. The contribution of information resource in the development of the fisheries sub-sector can be viewed under those of fisheries information products like the Nigerian Fisheries and Aquatic Sciences. (NIFFIC) database, Proceedings of national conferences of Fisheries Society of Nigeria (FISON), annual and technical reports Fisheries Research Institutes in Nigeria. Also to be brought under perspective is the information products of eco-tourist institutions like the Nigerian National Parks.
    Description: Includes:- 1 table.;1 fig.
    Keywords: Fisheries ; Information Management ; Nigeria ; brackishwater environment ; freshwater environment ; marine environment ; Information services
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 178 - 182
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  • 3
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    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/23054 | 19325 | 2018-03-06 15:33:34 | 23054 | Fisheries Society of Nigeria
    Publication Date: 2021-07-12
    Description: Sustainable development in Tatabu fishing community can hardly be attained without a systematic socio-economic consideration of the productive activities and development needs of the people. Generally two important factors play a great role in rural livelihoods; the prevailing structures and processes and access to assets, which can be combined in a various ways to generate positive outcomes. In essence poverty and the opportunity to escape from it depends on all the above. The assets comprise of human, natural, social, physical and financial. The present study (emperically analyzed their strength, linkages and the effects of policy and structures on them, particularly as it translates to the socio-economic well-being of the fishers.
    Description: Includes:- 3 tables.;9 refs.
    Keywords: Fisheries ; Sociology ; Nigeria ; Tatabu L. ; Livelihood ; freshwater environment ; Artisanal fishing ; Investments ; Financial resources ; Fishery economics ; Labour
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 353 - 358
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  • 4
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    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/23057 | 19325 | 2018-03-05 20:48:39 | 23057 | Fisheries Society of Nigeria
    Publication Date: 2021-07-12
    Description: Most of the fish produced in Nigerian fresh-water systems are marketed as dried fish, since there are few alternative methods of preservation for distant markets. Considerable quantities are lost through insect infestation, fragmentation during sorting, mixing, storage and transportation. In Nigeria, a high proportion of the dried fish sold in the market harbours beetle infestation, mainly Dermestes maculatus and Necrobia rufipes. D. maculatus is the dominant pest, accounting for 50.0%. The larvae of both beetles are the most numerous forms and are responsible for a large proportion of the damage of dried fish.
    Description: includes:- 7 refs.
    Keywords: Fisheries ; Nigeria ; freshwater environment ; Aquatic insects ; Infestation ; Cured products ; Dried products ; Storage life
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 369 - 372
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  • 5
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    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/23055 | 19325 | 2018-03-06 15:35:00 | 23055 | Fisheries Society of Nigeria
    Publication Date: 2021-07-12
    Description: The study was conducted to assess consumer's preference of fish products in Yenagoa Metropolis, Bayelsa State. One hundred and ninety consumers were randomly selected for the study. Results showed that fishery products in Yenagoa metropolis include fresh, smoked, fried, dried, canned and frozen fish. Sixty-eight percent of the respondents said that the products are enough, whereas seventy-six percent feel the variety of fishery products is low. Majority of the respondents (86%) preferred fresh fish followed by smoked fish which was preferred by sixty-four percent of the respondents. Age, ethnic grouping, gender, marital status and education did not have any significant influence on the preferences of the consumers (P〉O.05). Major problems identified by the consumers were exorbitant prices of fish because of the activities of middlemen, unhygienic selling environment and scarcity of fish products. Consequently, it is recommended that an adequate system of financing small scale fisheries be evolved to reduce the influence of middlemen; sanitary laws should be enacted and enforced in the fish markets around the metropolis; Establishment of modern fish markets in Yenagoa to boast fish production, aquacultural investors should be attracted.
    Description: Includes:- 3 figs.;9 refs.
    Keywords: Fisheries ; Nigeria ; Yenagoa ; freshwater environment ; Fish utilization ; Fishery products ; Consumers
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 359 - 362
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  • 6
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    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/23060 | 19325 | 2018-03-06 15:40:12 | 23060 | Fisheries Society of Nigeria
    Publication Date: 2021-07-12
    Description: Fresh tilapia (Oreochromis niloticus) was smoked using two different kilns to evaluate and compare the microbial changes or quality, physicochemical and organoleptic characteristics. Smoked samples were dominated by Gram-positive bacterial, flora, Bacillus, Streptococcus and Staphylococcus. Fungi isolated included Aspergillus spp, and Penicillium spp. The two kilns used in smoking are Modified Drum Kiln (MDK) and Mud kiln (MK). The MDK had a higher impact on the total viable count (TVC) and reduced the TVC of the fresh sample by 37.5% while the MK reduced it by 29.5%. In a similar trend the MDK reduced the number of Staphylococci and fungi by 43.3% and 33.8% respectively while the MK only reduces them by 30.9% and 26.3% respectively. Statistical test indicated significant difference (P〈0.05) in the microbial load of fish processed in the two kilns. However, the reduction of the Coliform by the two smoking kilns is not significantly different.
    Description: Includes:- 3 tables.;10 refs.
    Keywords: Fisheries ; Nigeria ; Smoked fish ; Smoking Kiln ; Tilapia ; freshwater environment ; Cured products ; Processed fishery products ; Quality ; Microbiological analysis
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 381 - 385
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  • 7
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    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/23062 | 19325 | 2018-03-10 14:32:20 | 23062 | Fisheries Society of Nigeria
    Publication Date: 2021-07-12
    Description: The objective of this study was to determine the best smoking method that will enhance consumer preference for Clarias gariepinus without affecting negatively the nutritive value. Two methods of smoking were used: cold and hot smoking. The fish were smoked with improvised drum smoking kiln and oven. Smoked fish samples obtained were subjected to chemical analyses and sensory evaluation. Chemical analyses showed that the smoked fish were still rich in protein (66.0067.52%) and fat (9.83-12.28%); while the moisture content ranged between 7.82-8.24% and ash, 12.86-14.16%. There was no significant difference (P〉0.05) in the protein, ash and moisture contents. Significant differences (P〈0.05) were observed in the Calcium(Ca), Potassium(K), Sodium(Na), Zinc(Zn), Lead(Pb), Iron(Fe) and Phosphorus(P) contents. Only hot smoke-dried (HSD) fish samples showed no presence of lead. The levels of sodium(Na) and potassium(K) in the smoked fish were relatively high, though, the amount of potassium(k) was higher. Sensory evaluation results revealed that there were no significant differences (P〉0.05) in the colour and taste ratings of the smoked fish samples. However, significant differences (P〈0.05) were observed in the odour, texture and overall acceptability. Hot smoke-dried and cold oven-dried Clarias gariepinus had the best overall acceptability in ratings.
    Description: Includes:- 1 table.;2 figs.;12 refs.
    Keywords: Fisheries ; Clarias gariepinus ; Nigeria ; freshwater environment ; Fishery products ; Processing fishery products ; Cured products ; Curing ; Mineral composition
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 389 - 393
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  • 8
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    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/23067 | 19325 | 2018-03-10 14:36:09 | 23067 | Fisheries Society of Nigeria
    Publication Date: 2021-07-12
    Description: Lagos state has a major sea port for landing of frozen fish from Mauritania, Senegal, the Scottish waters and other European countries. In the last three years, the dense population of the state has encouraged all kinds of trade to thrive. Fish as a major food in many Nigerian diets has been known to complement the high carbohydrate intake of majority of the Nigerian populace because of the unaffordable prices of beef in the market. The market for frozen fish is rich in Lagos. It has provided many women fishmongers a livelihood for over a decade. They have been able to sustain their families and improve their social status over the years. This study reports the modus operandi of the trade. The study covered a period of three months. Fish sales were monitored in Epe, Oyingbo, Ijora and Alaba markets. The cooperation of the heads of markets (Iya Olojas) were requested at every market. It was ensured that observations and the interviews/questionnaires do not interfere with the women's activities. Specific areas focused upon in the study included countries of fish imports, most acceptable species, packaging, purchase price, sales price and profit margins. Other important factors in the fish market that were studied included entrance into the fish marketing business, sources of finance and problems. The study also made suggestions on how to improve upon the fish marketing business of women in Lagos State.
    Description: Includes:- 1 table.;3 refs.
    Keywords: Fisheries ; Sociology ; Nigeria ; Lagos State ; Frozen Fish ; freshwater environment ; marine environment ; Women ; Frozen products ; Processed fishery products ; Marketing ; Chilling storage
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 409 - 412
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  • 9
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    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/23214 | 19325 | 2018-03-25 12:46:05 | 23214 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: The length weight relationship and condition factor of Hemichromis fasciatus from Kainji Lake was studied. One hundred and twenty seven fish samples of total length ranging from 6.50cm 15.50cm and weigh between 4.00g and 60.00g collected between August 2006 and June 2007 were analyzed. Results showed that a, b and r - values were 0.0042, 3.442 and 0.966 respectively, while the condition factor (CF) values varied from 0.67 2.42 with mean of 1.203. The fish exhibited positive allometric growth pattern. The condition of the lake is favourable for the survival of the fish species.
    Description: Includes:- 2 tables.;1 fig.;15 refs.
    Keywords: Ecology ; Fisheries ; Hemichromis fasciatus ; Nigeria ; kainji L. ; freshwater environment ; Length-weight relationships ; Condition factor
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 15 - 18
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  • 10
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    Fisheries Society of Nigeria | Kaduna (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23285 | 19325 | 2018-03-28 16:10:49 | 23285 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: Metrological parameters and their impacts on weight loss of fish inside Kainji Solar Tent Dryer were experimentally investigated. Drying experiments were conducted in solar dryer across the five agro ecological zones of Nigeria. During the drying experiments, the parameters such as temperature, relative humidity were lowest. The study showed that meteorological parameters were the primary determinants for fish drying within the Kainji Solar Tent Dryer, since weight loss during the experiment followed the pattern of these parameters
    Description: Includes:- 2 tables.;2 figs.;5 refs.
    Keywords: Fisheries ; Nigeria ; Kainji L. ; freshwater environment ; Processing fishery products ; Drying ; Solar power
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 22-25
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