tailieunhanh - A Guide to Fisheries Stock Assessment using the FMSP Tools

Table 1 contains a summary, by species, of the information included in the stock assessments, and also indicates those that have been revised since the 1999 publication. A total of 28 of the 60 Atlantic and Gulf of Mexico stock assessment reports were revised for 2000. Most of the proposed changes incorporate new information into sections on population size and mortality estimates. The revised SARs include 15 strategic and 13 non-strategic stocks. For the first time, individual species abundance estimates are available for the Western North Atlantic Stocks of Atlantic spotted and Pantropical spotted dolphins. The Rmax value for. | A Guide to Fisheries Stock Assessment using the FMSP Tools CEE Centre for Environment Education Department for I B B II B International Development MRAG Scales FSC Copyright 2005 Marine Resources Assessment Group MRAG London Centre for Environment Education Ahmedabad Scales Consulting Ltd London. ISBN 81-86385-99-1 This document was produced in 2005 by FMSP project R8468. It was designed and tested in India by collaboration with the Fisheries Departments of three Indian states Andhra Pradesh Orissa and West Bengal. The authors gratefully acknowledge the inputs and advice of the project partners from these states in addition to those of the ICAR fisheries research and training institutes CMFRI and CIFE and several others in India. Special thanks are due to our collaboration co-ordinators in each state Gopi Venkata Raju Andhra Pradesh Satyajit Kumar Bhuyan Orissa and Sukhendu Chakraborty and Madhumita Mukherjee West Bengal for their valuable inputs to the project and for reviewing draft manuscripts. We also thank Srinath Mudumby of CMFRI and Rudra Biradar of CIFE Susan Singh-Renton of the Caribbean Regional Fisheries Mechanism and the FAO s Kevern Cochrane. This document is an output from a project funded by the UK Department for International Development DFID for the benefit of developing countries. The views expressed are not necessarily those of DFID Contents Preface 1 1 What is the role of stock assessment in fishery management 3 Providing advice in the preparatory phase 6 Helping to develop the management plan 7 Fine tuning the management measures in the implementation phase 11 2 What is a stock assessment 13 What will I estimate in a stock assessment 13 Are there alternative approaches to stock assessment 21 What data would I need 23 3 What tools can I use to make a stock assessment 27 What do the different FMSP stock assessment tools estimate 28 So which types of stock assessments can I use the different tools for 30 What .