Fisheries statistics of Kainji Lake, northern Nigeria, Nov. 1994 - Dec. 1998

Results are presented for the first 4 years data (1994-1998) of the Kainji Lake catch assessment survey, collected and analysed by the Nigerian-German Kainji Lake Fisheries Promotion Project. The following areas are covered: Methodology and alterations of the original sampling concept; Frame survey results - factors relating to the CAS; Catch assessment survey results - general; Gill net fishery; Drift net fishery; Beach seine fishery; Cast net fishery; Longline fishery; Trap fishery; and, Catch statistics from fisherwomen. (PDF contains 143 pages

The fishery of Lake Yamama, Kebbi State, Nigeria

The highlights of the Fisheries Assessment Survey conducted at Yamama Lake in Kebbi State, North-western Nigeria in 2005 is presented. There were 17 fish species found in fishermen's landings during the survey period. About 25 fishermen were found using undersized nets to catch the juveniles of these species. Fishing pressure was found to be very high. The lake is 900 m in length and 195 m wide giving a surface area of about 18 hectares. For an optimum catch, about 4 fishermen ought to have engaged in full time fishing activities if the fisheries of the lake are to be managed on a sustainable basis. However, a surplus of over 100 fishermen was recorded actively fishing during the period of the assessment. All these have a depleting effect on the abundance and sizes offish caught from the lake. A community based fisheries management system, which establishes a participatory involvement of fishermen in the conservation and rational exploitation of fisheries resources for the well being of the stakeholders is recommended for the Lake

Data collection in an inland water fishery (Jebba Lake, Nigeria): the trade-off between cost and accuracy

Accurate and long-term fisheries data are vital for fisheries managers to understand and manage fisheries effectively. Only a few inland waters have such data. This is often due to the difficulty and high cost as well as low priority given by governments to data collection activities. Besides accuracy, practicality and cost are also important considerations when designing fishery data collection systems. A data set from the fishery of Jebba Lake in Niger State, North-central of Nigeria, was used to assess how low cost, yet accurate, fisheries data collection can be achieved. Simulations of reducing the frequency of the annual inventory of fishery manpower and crafts (frame survey) and of lowering the sampling effort of monthly fish catch and fishing activities (catch assessment survey) were made. The effect of the reductions on daily catch, fishing activity and yield estimate was then determined. Reducing the number of sampling days was reduced from four to two per month. Problems of obtained accurate and long-term fisheries data from tropical inland waters were discussed

Economic benefits of utilizing small sized reservoirs for capture fisheries: the Alau Lake experience

The paper discusses possible approaches to emply in harnessing fish resources in a small sized reservoir. It reveals how capture, extensive and integrated culture fisheries could be beneficially employed to derive maximum gains from the reservoir without jeopardizing its fisheries potentials especially in terms of conservation. (Document has 8 pages.

Responsible fisheries enhancing poverty alleviation of fishing communities of Lake Kainji

The attributes of responsible fisheries in enhancing Poverty Alleviation of fishing Communities of Lake Kainji were appraised. After impoundment in 1968, the catch per unit effort of fish continued on a downward trend, which suggested a decline in the fish population as a result of improper fishing methods such as the use of small mesh size nets, fish poisoning, destructive fishing gears like beach seine nets. The Nigerian-German (GTZ) Kainji Lake Fisheries Promotion Project intervention brought an increase in yields for the lake in 1996. The estimated annual yield was put at 38.244 metric tones in 1996, an increase of 18 % from the yield recorded in 1995 due to improvement in fishing and conservation methods. The result of catch assessment study carried out in 2003 as a follow up to GTZ intervention is presented. This reveals 15 family and 40 species of fish recorded. Which shows that Lake Kainji still has very high diversity and abundance of fish species. The paper suggests ways to encourage fishing communities to adopt new innovation or strategies by the government and non-governmental organization, which will go a long way in alleviation poverty among the fisher folk

A MILITARY DISCOURSE AND STYLISTIC VARIATION: LANGUAGE USE IN ODOGBO ARMY BARRACKS IN OJOO-IBADAN NIGERIA

This study examines language use among soldiers in the Odogbo army barracks in Ojoo-Ibadan during training and parade activities. A good number of scholars have investigated language use in the armed forces, and many of them adopted different approaches and arrived at different conclusions. However, there is a paucity of scholarship on the shared knowledge that soldiers deploy in their language during training, parades, and other special activities. The study adopts a qualitative method since the data involved are descriptive. The data used in this study was harvested through participant observations of parade activities by soldiers, as were the audio recordings of army interactions during a parade. Odogbo Army Barracks in Ojoo, Ibadan, was purposefully selected since it was the first barracks in Ibadan and was saddled with the responsibility of coordinating the military activities in southwestern Nigeria. The collected data were analysed from sociolinguistic perspective through identification and interpretation in the military context vis-à-vis the interlocutor. The paper concluded that soldiers’ language in parade involves an authoritative style obeyed by the parade troop as a result of shared knowledge

Sugar and alkaloid profiles of serendipity berry (Dioscoreophyllum cumminsii)

The study evaluates the chemical and physico-chemical composition of serendipity berry (Dioscoreophyllum cumminsii). The berries were separated into seed coat, gel and seed. The sugar and alkaloid profiles of the three components of these berries were analyzed. The predominant sugars were fructose and glucose. Fructose and glucose ranged from 0.61 to 3.47 mg/100g and 0.35 to 3.15 mg/100g respectively. The gel had higher sugar contents than the seed and the peel. Soladulcine was the predominant alkaloid in the seed and peel. Total alkaloids were 1.09 mg/100g in seed, 0.18 mg/100g in peel and traces of emetine in the gel. The alkaloid contents of the seeds were higher than the peels and the gel. Generally, the alkaloid contents in the three components of the berry were very low and could not cause any health problem when consumed. Serendipity berry is a promising fruit which could find its use in the production of juice and wine in the food industry. Keywords: Alkaloid, Fructose, Glucose, Serendipity berry, Suga

Assessment of Gerio Lake Fishery for Enhanced Management and Improved Fish Production

The highlights of the Fisheries Assessment Survey conducted on Gerio Lake, Yola in Adamawa State, North-eastern Nigeria in February, 2005 is presented in this paper. There were 22 fish species found in fishermen\u2019s landings during the survey period. About 30 fishermen were found using undersized nets to catch the juveniles of these species. Fishing pressure was found to be very high. For an optimum catch, about 10 fishermen ought to have engaged in full time fishing activities if, the fisheries of the lake is to be managed on a sustainable basis. However, a surplus of over 80 fishermen was recorded actively fishing during the period of the assessment. All these have a depleting effect on the abundance and sizes of fish harvested from the lake. A community based fisheries management system, which establishes a participatory involvement of fishermen in the conservation and rational exploitation of fisheries resources for the well being of the stakeholders is recommended for the Lake

Assessment of inland waters fisheries in Nigeria with implications for improved freshwater fish production, poverty alleviation and food security

Rapid Appraisals of the current fisheries situations of some selected inland water bodies in Nigeria were carried out within the framework of Aquaculture and Inland Fisheries Project (AIFP) Annex II of the National Special Programme for Food Security (NSPFS). This paper presents the results of the fishery assessment of one of the selected inland water bodies (Sabke Lake) in Nigeria with a view to optimizing the fish yield through the adoption of improved culture based fishery techniques and community-based fisheries management. The lake is unmanaged and the fishing pressure was found to be very high. Also a number of fishermen were found using small mesh size nets to crop the juveniles of highly valued fish species for an optimum catch. About 14 fishermen ought to have been engaged in full time fishing activities if the fisheries of this lake is to be managed on a sustainable basis. However, a surplus of over 100 fishermen was recorded actively fishing during the period of the study. The results further revealed that Fisheries Rules and Regulations were not established for the national exploitation and proper management of the fisheries of many inland water bodies including Sabke Lake. All these have a depilatory effect on the abundance and sizes of fish harvested from the nigerian inland water bodies especially Sabke Lake. A community based management system that establishes a participatory involvement of fishermen in the conservation and national exploitation of fisheries resources for their own well being is recommended for Sabke Lake and other inland water bodies in Nigeri

Food security and poverty alleviation under the National Special Programme for Food Security: a preliminary socio-economic assessment of Yamama Lake, Kebbi state, Nigeria

The World Food Summit in its meeting in Rome in 1999 estimated that 790 million people in the developing world do not have enough food to eat. This is more than the total populations of North America and Europe combined. Nigeria is one of the developing countries affected by hunger, deprivation and abject poverty by its citizenry inspite of its enormous natural and human resources. To reduce poverty and increase food supplies to the masses the Federal Government of Nigeria embarked on a programmed-tagged National Special Programme for Food Security (NSPFS) in the year 2002. The programme's broad objectives are to attain food security in the broadest sense and alleviate rural poverty in Nigeria. One of the areas of the programme's intervention is in the aquaculture and inland fisheries development because Nigeria imported 681mt of fish in 2003 with a total cost of about N50 million. The paper assesses the socio-economic conditions of one of the selected water bodies (Yamama Lake) with a view to introducing community-based fisheries management plan for the rational exploitation and management of the fishery and other aquatic resources of the water body thereby increasing fish supply and improving the living standard of the fisherfolk in the area. Data were collected using Participatory Rural Appraisal (PRA) tools and questionnaire administratio