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  • 1
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    Influence of number of valves on catch composition of a fishing pot trap (Lege) in River Rima, north western Nigeria (2021)
    In:  http://aquaticcommons.org/id/eprint/4117 | 424 | 2011-09-29 16:33:01 | 4117 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-06-29
    Description: Three types of prototype (Lege) traps with different numbers of entrance valves were evaluated in River Rima, north western Nigeria. The traps contained 4,6 and 8 valves, tagged 4-V, 6-V and 8-V respectively. The experiment was carried out in a randomized complete block design with one factor each replicated three times. Data collected on fish diversity, number, biomass and sizes were subjected to descriptive statistics and analysis of variance. The results of the catch composition showed close diversity index of 0.86 for 6-V, 0.80 for 8-V and 0.60 for 4-V Lege traps. However, the number (41%) and biomass (48%) of fish caught in the 6-V Lege trap were significantly (P〈0.05) higher than those caught in the other traps. There was no definite trend in the sizes (length and girth) of fish caught in the traps. On the basis of species diversity, and the number and biomass of fish caught, the 6-V Lege showed preference for adoption than the other two traps. However, further studies are recommended on the appropriate mesh size net for the trap in line with the provisions of fisheries edicts
    Keywords: Fisheries ; Biology ; Nigeria ; River Rima ; catch composition ; fishing gear ; gear construction
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 802-808
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  • 2
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    An appraisal of the traditional fish handling and processing methods in Lake Chad (2021)
    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23218 | 19325 | 2018-03-18 13:40:29 | 23218 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-13
    Description: The paper reviews the various techniques of fish handling and processing in Lake Chad. Poor handling of fish catches on board coupled with the distant location of the fishing grounds and thick aquatic vegetation on the lake which hamper fast movement of catches to the processing centers are the bane of good quality fresh fish getting to the processors. The techniques adopted in processing and preservation are mainly smoking, char-burning and sun drying. Defects suffered by the processed products of the methods include high moisture content, heavy insect infestation, bacterial decomposition and fungal attack. Protection of catches from direct sunlight by spreading wet jutes over them will lower the rate of deterioration. Removal of the aquatic vegetation by appropriate authorities and canalization will ease movement of fish catches to the processing centers. More serious enlightenment of the processors on the adoption of the 'Chorkor' oven will reduce the problems presently facing cured fish. The use of rambo insecticide and other dangerous chemicals by the fish processors and marketers for the preservation of fish products before repackaging should be discouraged.
    Description: Includes:- 1 table.;43 refs.
    Keywords: Fisheries ; Nigeria ; freshwater environment ; Fish handling ; Handling ; Processing fishery products ; Curing
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 46 - 51
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  • 3
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    Vocational training of Nigeria unemployed youths in Northeast Nigeria as fish farmers: a means of ensuring food security (2021)
    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23350 | 19325 | 2018-04-08 11:52:47 | 23350 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Vocational training for unemployed youths as fish farmers plays an important role in meeting fish protein need of Nigeria, contributing immensely to the national economy by providing nutritious food for the populace, creating jobs and enhancing national health and wealth. Youths are the leaders of tomorrow thereby their contribution towards food security is important. The study considered their opinion on the training based on skills acquired during a-6-week intensive vocational training. Results show that most trainees (97.03%) are within the economically active age group of 20-39years. Most trainees were confident that the programme will ensure food abundance and have a great impact on national economy. They also considered the training helpful and not only to their immediate families but also to the country at large. Skills were acquired in 8 various enterprises of fisheries but most trainees (43.56%) show greatest interest in fish fingerlings production through induced breeding, a situation that could boost aquaculture in Nigeria in few years to come. According to the trainees, the programme is laudable, and came at the right time when Nigeria is agitating to be put among the economically developed nations. However, youths exercise fear over inconsistency that could impede the progress of the programme. Recommendations are made on how to ensure better food security through a laudable programme of this nature.
    Description: Includes:-8 tables.;4 refs.
    Keywords: Aquaculture ; Information Management ; Nigeria ; Vocational Training ; Extension Services ; freshwater environment ; Training
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 111-114
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  • 4
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    Efficiency of vocational training of Nigeria unemployed youths in Northeast Nigeria as fish farmers (2021)
    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23349 | 19325 | 2018-04-08 11:49:52 | 23349 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Vocational training for unemployed youths plays an important role in solving the problem of unemployment in Nigeria, assisting the teeming unemployed youths to find their footing in society as responsible citizens and for wealth building and creation. Youths as participants are the major actors in appraising the vocational training. The study probed into the activities of these youths during their six weeks stay at the Federal College of Freshwater Fisheries Technology, Baga. Result shows that most trainees (81.19%) were within the age range of 20-29 years. 94.06% were males while 5.94% were females. Desires for self employment made these youths to participate in vocational training as many of them (51.49%) are in total unemployment while the rest are involving in menial jobs. Skills were acquired in 8 different fisheries enterprises and these include Fish production, fish processing technology, fish feed production technology, boat construction, aquarium construction, fish marketing, extension methods and fishing gear construction and maintenance. Most trainees (43.56%) preferred and show enthusiasm for fingerlings production through induced breeding. Trainees were from 41 local government areas in 7 states in the North-east Nigeria. Virtually all participants performed above average, a result that is encouraging if aquaculture must develop and solve unemployment problem. Vocational training has distortions that impede its efficiency.
    Description: Includes:- 5 tables.;4 refs.
    Keywords: Aquaculture ; Information Management ; Nigeria ; Vocational Training ; freshwater environment ; Training
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 108-110
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  • 5
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    Fish hatchery survey in Borno State, Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23428 | 19325 | 2018-05-02 08:04:53 | 23428 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Aquaculture is regarded as being uniquely placed to reverse declining supplies from capture fisheries and for this to be realized, fish hatchery has a notable role to play. Fish hatchery is the bedrock upon which true and sustainable fish farming can be built. A field survey was conducted in the 3 geo-political zones of the State to look into the number and functionality of fish hatcheries. Results showed that there were about 23 fish hatcheries in the State with the majority concentrated in Maiduguri metropolis. Private ownership (79%) dominated of which 84% were functional. Average annual production is less than 10,000 fingerlings in most hatcheries while the wild sourced fingerlings were used as alternative by the majority. Most hatcheries (62%) made use of concrete tanks for breeding and nursery. All the respondents were of the opinion that the level of patronage was encouraging, though agreed that the level of aquaculture development in the State was low. However, few among the respondents said aquaculture development in the State is on the increase due to low productivity of natural water bodies for the past 10 years. Recommendations were made on how to improve hatchery operation that could help to boost aquaculture development in the State
    Description: Includes:- 3 tables.;3 figs.;5 refs.
    Keywords: Aquaculture ; Nigeria ; Borno State ; Hatchery management ; freshwater environment ; Fish culture ; Freshwater aquaculture
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 88-93
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  • 6
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    Prospects and problems of aquaculture in Borno State, Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23429 | 19325 | 2018-05-02 08:05:56 | 23429 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Borno State has a great potential for fish production from the culture and capture fisheries, regrettably the potential for the former is still yet untapped despite low productivity of large rivers and lakes that are already over-exploited. Aquaculture has the potential to help expand the resource base and reduce the pressure on capture fisheries, generating employment, foreign exchange and elevating socio-economic of the farmers. This paper therefore, reviewed the prospects and major problems of aquaculture in the state with a view to fortify interest on fish farming.
    Description: Includes:- 5 refs.
    Keywords: Aquaculture ; Nigeria ; Borno Sate ; freshwater environment ; Aquaculture ; Aquaculture development
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 94-97
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  • 7
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    Aquaponics: a new trend in food production (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24175 | 19325 | 2018-05-13 18:58:18 | 24175 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The increase in population coupled with current and escalating extent of soil degradation, water scarcity and climate-related challenges plaguing agricultural productivity in every corner of the world and particularly in Nigeria demands for alternative food techniques, one of them called aquaponics. This paper highlights a new trend in food production techniques for the production of fish and vegetable crops in aquaponics. Aquaponics is experiencing renewed interest worldwide with many small home growers and large operations employing the process as a means of producing sustainable fish and plant crops. The design of this scalable farming system closely mirrors that of recirculating systems in general, with the addition of a hydroponic component and the possible elimination of a separate biofilter and devices for removing fine and dissolved solids. The benefits of aquaponics includes conservation of water resources and plant nutrients, intensive production of fish and reduced operating costs relative to either system in isolation. Aquaponics, without doubt is a practice that is receiving considerable interest due to an ever increasing need for fresh wholesome food and sustainable eco-friendly agricultural practices.
    Description: Includes: 3 figures.;Also includes: 12 references.
    Keywords: Aquaculture ; Nigeria ; Ibadan ; Aquaculture ; Hydroponics ; Recirculating system ; Sustainable ecosystem ; Natural fertilizer ; Aquaponics ; freshwater environment ; Plant culture ; Sustainable development ; Environmental impact ; Food security ; Aquaculture development ; Organic fertilizers ; Recirculating systems ; Agropisciculture ; Water resources ; Conservation ; Aquaculture techniques ; Fish culture
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 98-101
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  • 8
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    Growth and production of fingerlings of Dutch Clarias gariepinus in indoor tanks in arid zone, Nigeria (2021)
    Fisheries Society of Nigeria | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23321 | 19325 | 2018-04-06 15:38:18 | 23321 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Study on the growth and percentage survival of seasonal induced breeding was carried out at the Federal College of Freshwater Fisheries Technology Baga. About 40,414 fingerlings were produced with percentage survival of 81.1 % at water temperature of 28degrees C between April and May, 2009. The average weight of fingerlings produced was 1.54 g with average standard and total length of 3.0 cm and 3.5 cm respectively. However, environmental factors that could hinder mass production of Dutch Clarias fry/fingerlings stocked at low and high stocking densities were monitored for eight weeks at 3.6 m2 indoor concrete tanks with water aeration using flow-through system. The percentage survival of 83.5% and 92.5% were obtained after the period of 8 weeks. The fry/fingerlings were fed with Artemia mixed with powdered feed of 35 % crude protein. The study shows that for Dutch Clarias fry/fingerlings production and management, smaller concrete tanks with flow-through mechanism are required and 3.6 m2 should not be stocked with more than 3,500 fingerlings per tank in the first 8 weeks before transferring them to production ponds. It was observed that apart from efficient water aeration, constant feeding and sampling of fingerlings will increase growth rate, increase resistance to disease and uniformity in size of the Dutch Clarias. The mean water temperature measured in this study ranged from 27.5degrees C in April and 28.5degrees C in May while pH ranged between 7.5 and 7.3 in April and May, respectively.
    Description: 4 tables.;8 refs.
    Keywords: Aquaculture ; Clarias gariepinus ; Nigeria ; Baga ; freshwater environment ; Fish culture ; Freshwater aquaculture ; Pond culture ; Survival
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 8-10
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  • 9
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    Some water quality parameters and zooplankton periodicity of the Baga in-take channel of Lake Chad (2021)
    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23348 | 19325 | 2018-04-08 11:47:31 | 23348 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Assessment of some water quality parameters and zooplankton periodicity of the Baga in-take channel of Lake Chad was reviewed. Seven different species of zooplankton were identified at the two sampling stations of the channel. Each identified zooplankton species were grouped according to its major group of Copepods, Cladocera and Rotifera. The copepods dominated the total population with the highest number of occurrence as Cyc1opoids species. There was a mark evidence of organic manure nutrient on total zooplankton population. Surface water temperature in station 1 ranged from 22.8-28. 1degreesC the pH ranged from 6.10 - 7.12 while D.O ranges from 4.00mg/1 -6.20 mg/I. At station 2, temp ranged from 22.0-28.1 OdegreesC, pH ranged 7.1 - 8.6 while D.O. ranged from 4.00mg/1 - 6.20mg/1.
    Description: Includes:- 2 tables.;8 refs.
    Keywords: Ecology ; Nigeria ; Chad L. ; freshwater environment ; Water quality ; Zooplankton ; Periodicity ; Seasonality ; Periodic variations ; Freshwater ecology
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 105-107
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  • 10
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    Histopathological and haematological effects of acute toxicity of cypermethrin on Clarias gariepinus juvenile (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24233 | 19325 | 2018-05-19 07:27:47 | 24233 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The experiment was conducted to evaluate the acute toxic of cypermethrin, a synthetic pyrethroids on juveniles of Clarias gariepinus. The effect was assessed based on the comparism results of haematology and histopathological tissues examinations of control and experimental group exposed to five nominal concentration of cypavest, 10EC Pesticide Preparation (active substance 100mg/l) of cypermethrin in a static non-renewal bioassay for 96 hours. The 96hrs LC50 value of the exposed juveniles was found to be 0.062 mg/1. Fish exhibited progressive loss of balance, respiratory distress, erratic movement and death. Examination of haematology significantly showed higher value (P〈0.001; 0.01) of white blood cell (WBC), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), packed cell volume (PCV), monophilis and heterophilis; a significant reduction (P〈0.001, 0.01) in Red Blood Cell (RBC) and Lymphocyte was obtained as compared to the control. Severe necrosis, haemorrhages vacuolation, congestion and focal interstitial haemorrhages were the stopathological changes in the tissues of gill and liver, thus concluding that cypermethrin is toxic to juveniles of Clarias gariepinus.
    Description: Includes: 17 references.
    Keywords: Pollution ; Aquaculture ; Clarias gariepinus ; Nigeria ; Borno State ; Cypermethrin ; cypavest ; Synthetic pyrethroid ; Static-non renewal ; bioassay ; freshwater environment ; Histopathology ; Haematology ; Toxicity ; Freshwater fish ; Juveniles ; Pollution effects ; Evaluation ; Comparative studies ; Experimental research ; Bioassays ; Toxicants ; Pesticides
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 322-326
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