Annual report 1988

The document gives an account of the activities carried out during the year 1988 by the Lake Kariba Fisheries Research Institute and includes individual reports of the various projects conducted during the year. They include: the Zambia/Zimbabwe Lake Kariba Fisheries Research and Development Project; a comparative study of genetic growth determinance of Limnothrissa miodon; a comparative study of consumption rates and preference for some species of aquatic macrophytes by Tilapia rendalli; an evaluation of inshore stocks, and external variables causing variation in composition abundance and distribution; Willards cage-culture pilot project; and, aspects of the ecology of the phytobenthic communities in Lake Kariba - PhD thesis.

Annual report 1989

The report describes the activities of the Institute during the year 1989, which include the following: The Zambia/Zimbabwe Lake Kariba Fisheries Research and Development Project; the pilot cage culture project; cooperative development; an economic evaluation of the Kariba International Tiger Fish Tournament; hydroacoustic surveys in Lake Kariba; and, the age structure and population dynamics of the sardine Limnothrissa miodon in Lake Kariba.

Annual report 1990

The report is presented under the following headings: Officer-in-charge's report; The Zambia/Zimbabwe SADCC Lake Kariba Fisheries Research and Development Project; Comparative study of growth of Limnothrissa miodon (Boulenger) in Lake Kariba; An analysis of the effects of fishing location and gear on kapenta catches on Lake Kariba; Hydro-acoustic surveys in Lake Kariba; The pre-recruitment ecology of the freshwater sardine Limnothrissa miodon (Boulenger) in Lake Kariba; Report on short course in zooplankton quantitative sampling methods held at the Freshwater Biology Laboratory, Windermere from 19 to 30 November 1990; Report on training: post-graduate training - Humberside Polytechnic, UK; Postharvest fish technology in Lake Kariba, Zimbabwe; and assessment of the abundance of inshore fish stocks and evaluating the effects of fishing pressure on the biology of commercially important species and ecological studies on Synodontis zambezensis .

Annual report 1991

This annual report is presented under the following major headings: 1) acting officer-in-charge's report; 2) project coordinator's report; 3) evaluation of some components of the Lake Kariba "kapenta fishing unit"; 4) comparative study of growth of Limnothrissa miodon (Boulenger) in Lake Kariba; 5) the pre-recruitment ecology of the freshwater sardine Limnothrissa miodon (Boulenger) in Lake Kariba; 6) the ecology of the inshore fishery of Lake Kariba; the biology of Synodontis zambezensis ; 7) database; and, 8) publications.

Annual report 1992

An account is given of the activities conducted by the Lake Kariba Fisheries Research Institute during the year 1992, which include the following research programmes: Comparative study of growth of Limnothrissa miodon (Boulanger) in Lake Kariba; Effort calibration for the Kapenta fishery; Pre-recruitment ecology of the freshwater sardine L.miodon (Boulanger) in Lake Kariba; The ecology of the inshore fishery of Lake Kariba - biology of Synodontis zambezensis; Mercury in the tigerfish (Hydrocynus vittatus), green happy (Serranochromis codringtoni) and Tanganyika sardine (L.miodon) from Lake Kariba, Zimbabwe; and, Assessment of the potential development of a Synodontis fishery on Lake Kariba, Zimbabwe.

Annual report 1993

The report provides an account of the activities carried out by the Lake Kariba Fisheries Research Institute during the year 1993 under the following headings: Institute finances; Staffing and staff training; Staff housing; Infrastructure and institute expansion; Vehicles and vessels; and, Fisheries and fishery management. Individual reports regarding the various project activities conducted during the year are also included.

Annual report 1994

The report provides an account of the activities carried out by the Lake Kariba Fisheries Research Institute during the year 1994 under the following headings: Institute finances; Staffing and staff training; Staff housing; Infrastructure and institute expansion; Vehicles and vessels; and, Fisheries and fishery management. Individual reports regarding the various project activities conducted during the year are also included.

Annual report 1995

An account is given of the activities of the Institute during the year 1995, including also reports of various projects carried out by staff members, which concerned the following: pre-recruitment ecology of the freshwater sardine (Limnothrissa miodon) in Lake Kariba (Zimbabwe); hydroacoustic surveys of kapenta abundance in Lake Kariba and Lake Cahora Bassa (Mozambique); angler's tigerfish catches, tigerfish studies and gillnet sampling; inshore fish population studies in Lake Kariba; catch/effort data recording system; fishermen's training towards the establishment of a Fisheries Co-management approach on Lake Kariba; and, enforcement and compliance with fisheries regulations within the inshore fishery on Lake Kariba.

Annual report 1998

The report provides an account of the activities of the Lake Kariba Fisheries Research Institute of Zimbabwe during the period July 1997 to December 1998. It is presented under the following major headings: 1) Introduction; 2) Institute finances; 3) Staffing and staff training; 4) Infrastructure; 5) Vehicles and vessels; 6) Fisheries management -- kapenta management, inshore fisheries management, law enforcement; 7) Kariba Lakeshore Combination Masterplan; 8) Joint protocol; 9) Research work; and, 10) Publications and presentations.

Central area fisheries annual report 1994

The purpose of this report is to record key events/data and to outline the activities of the NRA Central Area Fisheries Function during 1994. The Rivers looked at include the Ribble, Lune, Hodder and Wyre. The issues that the report looks at includes Hydrological and meterological data, catch data for salmon and sea trout, fish kills, and fish stocking. It also lists the Micro-tag returns for 1994 and the six key objectives that the Central Area Fisheries Function has set itself for 1995. The report uses a range of different graphs and tables to display their data.

Central area fisheries annual report 1995

The purpose of this report is to record key events and achievements of the NRA Central Area Fisheries Function in 1995. Rivers include the Ribble, Hodder and Lune. The report looks at Hydrological and meteorological data, site visits made during the year, communications and reports, Capital works and purchases, Stock assessment, monitoring and specific investigations, Fisheries Management advice, Fish kills and rescues, Fish rearing and stocking. It also looks at rod and net catches for salmon and sea trout, micro-tag returns, the drought, the results of the 1995 objectives set the year before and the key objectives for 1996.

Central area fisheries annual report 1996

The purpose of this report is to record key events and achievements of the NRA Central Area Fisheries Function in 1996. Rivers are Ribble, Hodder and Lune. The report looks at Hydrological and meteorological data, site visits made during the year, promotional events that it was involved with; communications and reports, Capital works and purchases, Stock assessment, monitoring and specific investigations, Fisheries Management advice, Fish kills and rescues, Fish rearing and stocking. It also includes catch data for net and rod catches for Salmon and Sea trout; the results of the objectives made last year and key objectives for next year.

Fisheries in a changing scene [includes section on proposed Morecambe Bay barrage scheme]: paper presented at Association of River Authorities, Annual Conference, Morecambe, 1967

The report looks at trends developing in the area of the Lancashire River Authority which will, by the turn of the century, bring tremendous pressures to bear on its natural resources, particularly land and water. It looks at difficulties maintaining an environment suitable for all, human or otherwise, including construction of energy plants and increasing population. It explores the scheme of harnessing water on Morecambe Bay, including fishery advantages and disadvantages. The report looks at fish deaths and diseases in Morecambe Bay and the Lancashire area, providing statistics.

Aquatic Agricultural Systems: Annual report

The program on aquatic agricultural systems (AAS) aims to change the way the CGIAR engages with aquatic agricultural systems and the poor and vulnerable communities who depend upon them. To do so the program has focused on three primary lines of work in its first six months: (i) preparing for implementation of the program in focal countries and geographical hubs; (ii) harnessing the best of earlier and ongoing research that contributes to the science themes of the program and which we wish to see expanded and integrated into the program as it develops; (iii) establishing innovative governance and management arrangements that will guide and implement the program. This report summaries the achievements and reviews the progress of the AAS program.

Regional variation in the annual feeding cycle of juvenile walleye pollock (Theragra chalcogramma) in the western Gulf of Alaska

Juvenile fish in temperate coastal oceans exhibit an annual cycle of feeding, and within this cycle, poor wintertime feeding can reduce body growth, condition, and perhaps survival, especially in food-poor areas. We examined the stomach contents of juvenile walleye pollock (Theragra chalcogramma) to explain previously observed seasonal and regional variation in juvenile body condition. Juvenile walleye pollock (1732 fish, 37–250 mm standard length) of the 2000 year class were collected from three regions in the Gulf of Alaska (Kodiak, Semidi, and Shumagin) representing an area of the continental shelf of ca. 100,000 km2 during four seasons (August 2000 to September 2001). Mean stomach content weight (SCW, 0.72% somatic body weight) decreased with fish body length except from winter to summer 2001. Euphausiids composed 61% of SCW and were the main determinant of seasonal change in the diets of fish in the Kodiak and Semidi regions. Before and during winter, SCW and the euphausiid dietary component were highest in the Kodiak region. Bioenergetics modeling indicated a relatively high growth rate for Kodiak juveniles during winter (0.33 mm standard length/d). After winter, Shumagin juveniles had relatively high SCW and, unlike the Kodiak and Semidi juveniles, exhibited no reduction in the euphausiid dietary component. These patterns explain previous seasonal and regional differences in body condition. We hypothesize that high-quality feeding locations (and perhaps nursery areas) shift seasonally in response to the availability of euphausiid