Fish And Fisheries Management In Lakes And Reservoirs

In this comprehensive edited book, international experts infisheries management and ecology review and appraise the status oflake and reservoir fisheries, assessment of fisheries yields,trophic ecology, rehabilitation and conservation, including aspecial section on African lakes where so much information of hugerelevance to fisheries managers is now available. Contributions from around the world. Carefully edited by internationally respected editor. Has been generated from acclaimed HIFI Symposium.

The importance of free longitudinal passage of river fauna is stressed.

"The book covers fishery assessments, habitat and community manipulations, and common practices for managing stream, river, lake, and anadromous fisheries. Chapters on history; ecosystem management; management processes; communications with the public; introduced, undesirable, and endangered species; and the legal and regulatory frameworks provide the context for modern fisheries management." From fisheries.org.

This document is organized into an introduction and 13 sections. Section 1 is based on a nationwide survey of reservoir habitats completed by the Reservoir Fisheries Habitat Partnership (RFHP). The RFHP canvassed agency professionals about various aspects of reservoir fish habitat degradation, and identified 12 comprehensive factors that captured most degradation. The sections developed in this document parallel these 12 factors to identify management practices that address the perceived degradation. Most sections are organized similarly: background information about the degradation factor is followed by a listing of alternative management practices. Deciding on appropriate management action can be complex because there are often several options for addressing degradation problems. Different options may have different cost, effectiveness, and consequences. A simplified decision model to choose among management options is suggested in section 12. Habitat management often goes far beyond the manpower available to agencies involved in reservoir habitat management, so suggestions on working with stakeholders are included in section 13. Ballpark costs of reservoir fish habitat management practices are given in the Appendix.

The major objective of the book was to promote better understanding of how various factors must fit together for successful implementation of inland fisheries enhancement programmes. Accordingly, the papers span a broad range of topics: technical, socio-economic, cultural and administrative. Techniques, geographic constraints, problems of information gathering and monitoring, and genetics are addressed. Because of its relative importance as an enhancement technique, stocking received much attention; areas discussed include strategies, modelling and prediction of results, health management and fitness of stocked fish as well as stocking experiences by type of water body. Cage culture: its importance, promotion through extension and limitations is also considered. Other paper cover social and economic benefits and their distribution, institutions and self and participatory management. Country reviews dealing very broadly with enhancements are also included. Contents Chapter 1: An Evaluation of Present Techniques for the Enhancement of Fisheries by R L Welcomme & D M Bartley, Chapter 2: Geography and Constraints on Inland Fishery Enhancements by James McDaid Kapetsky, Chapter 3: Review of the Administration and of Benefits from Fishery Enhancements in Australia by T Petr, Chapter 4: Inland Fishery Management and Enhancement in Cambodia by Nao Thuok, Chapter 5: Reservoir Stocking in Latin America: An Evaluation by Rolando Quiros, Chapter 6: An Appraisal of Stocking Strategies in the Light of Developing Country Constraints by Ian G Cowx, Chapter 7: How Predictable is the Outcome of Stocking? by Kai Lorenzen & Caroline J Garaway, Chapter 8: Review of Stock Enhancement in the Floodplains of Bangladesh by A I Payne & V Cowan, Chapter 9: Optimising Stocking Density of Carp Fingerlings Through Modelling of the Carp Yield in Relationto Average Water Transparency in Enhanced Fisheries in Semi-Enclosed Water Bodies in Western Bangladesh by M Rezaul Hazan & Hans A J Middendorp, Chapter 10: Current Methods and Constraints for Monitoring Production from Inland Capture Fisheries and Aquaculture by K J Rana, R Grainger & Adele Crispoldi-Hotta, Chapter 11: Obtaining Basic Information for the Enhancement of Small Water Body Fisheries: A Regional Project Viewpoint by L Verheust, Chapter 12: Genetical Asepcts of Fisheries Enhancement by D O F Skibinski, Chapter 13: Practical Aspects of Selection and Fitness of Stocked Fish by David J Penman & B J McAndrew, Chapter 14: Health Managment in Stocked Fisheries by R Wootten, Chapter 15: Implementation of Extension for Net-Cage Aquaculture in Indonesian Reservoirs: Pitfalls and Prospects by Sutandar Zainal & Pepen Effendi, Chapter 16: The Development of Cage Culture and Its Role of Fishery Enhancement in China by Baotong Hu & Yeping Liu, Chapter 17: Cage Culture: Limitations in Lakes and Reservoirs by Malcolm C M B & J Alan Stewart, Chapter 18: Fisheries Extension in Small Water Boday Fisheries in Zimbawe by N Songore, Chapter 19: An Assessment of the Economic Benefits from Stocking Seasonal Floodplains in Bengladesh by Liaquat Ali & Md Zahirul Islam, Chapter 20: Social and Economic Aspects of Reservoirs Enhancement in Kerala Reservoirs by D M Peters & C Feustel, Chapter 21: Social Economic and Cultural Aspects in Implementing Inland Fishery Enhancements in the Philippines by Catalion R Dela Cruz, Chapter 22: Open Water Stocking in Bangladesh: Experiences from the Third Fisheries Project by I Ahmad, S J R Bland, C R Price & R Kershaw, Chapter 23: Social and Distributional Issues in Open Water Fisheries Management in Banglades by Paul M Thompson & Md M Hossain, Chapter 24: Enhancement of Inland Fisheries in Nigeria: The Institutional Context Provided by Traditional and Modern Systems of Fisheries Management by A E Neiland & B M B Ladu, Chapter 25: Establishing Fishers Groups for Self-Management of Enhanced Fisheries in Semi-Closed Water Bodies in Western Bangladesh: The Experience of the Oxbow Lakes Small Scale Fisherman Project (OLP-II) by Niaz A Apu & H A J Middendorp, Chapter 26: Status and Prospects of Participatory Fisheries Management Programmes in Malawi by U F Scholtx, F J Njaya, S Chimatiro, M Hummel, S Donda & B J Mkoko, Chapter 27: Participatory Management of Reservoir Fisheries in North-Eastern Brazil by Frances Ivo Barbosa & Wolf D Hartmann, Chapter 28: Inland Fisheries Enhancement Implementation Criteria: Are Common Measures Attainable? A Consultation Restrospective by P A Siri & A F Born.

This paper is concerned specifically with the problems of river fisheries and associated management issues. It deals in particular with the scope for building on traditional practices, through the participation of traditional fishing communities, as a means of improving the quality of river fishery management. The paper reviews the most frequently encountered problems of riverine fisheries such as over-fishing due to population pressure or migration, and artifically induced environmental factors such as dams, pollution and deforestation. It lays stress on the importance of studying fishing communities, as well as strictly biological factors, and presents a four-stage analysis of the evolution of traditional riverine fisheries. Several undesirable consequences of this typical evolution, both on the resource itself and on traditional fishing communities, are identified and illustrated by case studies from the Amazon and the Zambesi. Certain types of traditional management strategies are examined and assessed for their future utility. The current ineffectiveness of many existing government river fisheries management policies is noted, either as a result of lack of resources or because they are inappropriate, often rooted in outdated colonial legislation. The lack of both limited access measures and of participation by local fishing communities are highlighted as major deficiencies. The paper concludes by linking these two features as crucial components of durable river management strategies for the future, although other possibilities for management are also reviewed and assessed. The paper contains a comprehensive bibliography for further reading.