search
for
 About Bioline  All Journals  Testimonials  Membership  News  Donations


Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 12, No. 1, 2008, pp. 5-11
Bioline Code: ja08001
Full paper language: English
Document type: Research Article
Document available free of charge

Journal of Applied Sciences and Environmental Management, Vol. 12, No. 1, 2008, pp. 5-11

 en Artisanal Fisheries Characteristics of the Fresh Water Reaches of Lower Nun River, Niger Delta, Nigeria.
Abowei, J.F.N. & Hart, A.

Abstract

A frame survey of fishing communities was carried out, employing the complete census technique, to assess the artisanal fisheries characteristics of the fresh water reaches of lower nun river for a period of two year, Eleven Community lie along the stretch of the study area. The total number of 4718 fishers with 1645 canoe units employing various fishing gear resulted to a fishers density of 3 fishers per canoe unit. A total of 29 fin fish families were recorded. Seasonally occurring fresh water crustacean. Attaya gaboneensis check for this species in other resources and palacemon paucidens check for this species in other resources were present. Etheria elliptica check for this species in other resources , an oyster was also present. A specie of fresh water clam, Galacea Paradoxa check for this species in other resources from the family Donacidae was present. Trichechus senegelensis check for this species in other resources (Manattee) was occasionally captured by local hunter during the flood period. Hippopotamus amphibious check for this species in other resources (Hippopotamus) was reported from isolated places but they were rare. A specie of Otta, Lutra macullicolis check for this species in other resources was present. Three species of crocodiles, Crococdylus niloticus check for this species in other resources Crocodylus cataphractus check for this species in other resources (Alligator) and Osteolaemus tetraspsis check for this species in other resources were also present. The Nile monitor, Veramus niloticus and the aquatic snake, Anoscopus sp. And three species of water turtle, Kimxy erosa check for this species in other resources , Pelumedusa check for this species in other resources sp and Peliosus check for this species in other resources sp were also present. The commonest fishing method employed was local fishponds (50.8%) and the least was gill nets (1.6%). Drift net caught the highest fish (8.01kg) per gear, while local fishponds was the least 0.25 kg. The annual catch per canoe was recorded for local fishponds (167. 84kg), while the lowest was assorted traps (14.7kg). Drift not recorded the highest annual for local fishponds. The mean biomass of 25.04 of fish catch of 20.2kg per fisher and the lowest value (4.53kg) was recorded per boat, total catch of 37903. 6kg, annual producing estimate of 434.81 tonnes, standing struck of 2.27 km-2 and of twenty two million, seven hundred and forty two thousand one hundred and sixty naira (N22742160) was estimated. The reduced annual income per fisher in the study was four thousand, eight hundred and twenty naira, thirty kobo. There is therefore the, urgent need for effective management of the Nun river fisheries, to improve on the living standard of the people.

 
© Copyright 2008 - Journal of Applied Sciences & Environmental Management

Home Faq Resources Email Bioline
© Bioline International, 1989 - 2017, Site last up-dated on 05-Dec-2017.
Site created and maintained by the Reference Center on Environmental Information, CRIA, Brazil
System hosted by the Internet Data Center of Rede Nacional de Ensino e Pesquisa, RNP, Brazil