Download or read book Manual of Methods for Fish Stock Assessment written by J.A. Pope and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Manual de Metodos Para la Evaluacion de Los Stocks de Peces written by R. J. H. Beverton and published by . This book was released on 1966 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Manual de Metodos Para la Evaluaci n de Los Stocks de Peces Informe Sobre Marcado written by International Commission for the Northwest Atlantic Fisheries (ICNAF) and published by . This book was released on 1965 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Manual de Metodos Para la Evaluaci n de Los Stocks de Peces written by International Commission for the Northwest Atlantic Fisheries and published by . This book was released on 1965 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Manual de m todos para la evaluaci n de las poblaciones de peces written by J. A. Pope and published by Food & Agriculture Org.. This book was released on 1983 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Simple Methods for the Assessment of Tropical Fish Stocks written by Daniel Pauly and published by Food & Agriculture Org.. This book was released on 1983 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This selection of methods is based on lecture notes used at a FAO/DANIDA training course held in Mombasa, Kenya, in May-June 1980. The methods presented are: regression and correlation, estimation of growth parameters from length-frequency data, estimation of mortalities (total, natural, fishing mortality) and analysis of catch and effort data. A brief annotated bibliography of tropical fish stock assessment is included.
Download or read book Computer Programs for Fish Stock Assessment written by Per Sparre and published by Food & Agriculture Org.. This book was released on 1987 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Manual de Evaluaci n de Recursos Pesqueros written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2003-12-30 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: El presente manual inicia con una introduccion a los modelos matematicos aplicados a la evaluacion de los recursos pesqueros. Se presentan las hipotesis relativas a los modelos y los conceptos de tasas de variacion de parametros en funcion del tiempo. Se expone el concepto de cohorte y el modelo de crecimiento de la cohorte. En el capitulo sobre las poblaciones de peces, se define el patron de explotacion y sus componentes, presentandose los modelos mas usados para la relacion poblacion-reclutamiento, asi como las proyecciones de poblacion de corto como de largo plazo. En lo que respecta a la gestion de los recursos pesqueros, se discuten los puntos de referencia biologica. Finalmente, se describen los metodos generales de estimacion de parametros, con particular atencion a los analisis de cohortes por edades y tallas. El autor y la investigadora Manuela Azevedo presentan los ejercicios de un curso impartido en el IPIMAR."
Download or read book FAO Fisheries Technical Paper written by and published by . This book was released on 1989 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Ecological Framework for Marine Fishery Investigations written by J. F. Caddy and published by Food & Agriculture Org.. This book was released on 1986 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: The text is intended as supplementary reading for fisheries workers, especially in developing countries, who do not always have ready access to current literature on applied marine ecology. An attempt is made to develop a wide range of concepts in a form that will hopefully encourage their incorporation into a practical, decision-making context. The food web and associated trophic interactions form the principal theme, in an approach that gives equal emphasis to qualitative, as well as the less easily measured quantitative considerations. An attempt is made to illustrate the consequences of the aggregated nature of much of marine production, as well as the subsequent dispersal of production in space and time, and how these processes affect the potential for economic harvest of commercial components of the ecosystem. Separate sections touch on environmental influences on production, relevant spatial and temporal scales for ecosystem analysis, life history strategies, diversity and stability, the concepts of the ecological niche, the community and the assemblage, and outline some first steps towards quantifiying production in marine ecosystems. Different approaches to representing trophic and other interactions are discussed, with examples from the literature. Reference is made to several ecological subsystems, in order to illustrate the main concepts presented. These include the mangrove ecosystem, the arcto-boreal macrophyte community, a mediterranean demersal fish assemblage, and the oceanic ecosystem associated with high seas tuna stocks. In practical terms, it is concluded that the first and simplest approach to multispecies resource management is not necessarily the manipulation of individual food web components, but the identification, mapping and conservation of critical habitats, especially centres of local production, and their associated ecological dissipation structures.
Download or read book Manual de metodos para la evaluacion de los stocks de peces written by and published by . This book was released on 1979 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Manual de m todos para el estudio y la evaluaci n de los recursos pesqueros written by S. T. Forbes and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book F A O Fisheries Biology Technical Paper written by and published by . This book was released on 1971 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Manual de m todos para la evaluaci n de las poblaciones de peces written by J.A. Gulland and published by . This book was released on 1971 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collected Reprints written by Southwest Fisheries Center (U.S.) and published by . This book was released on 1986 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Tropical Fish Stock Assessment written by Per Sparre and published by Food & Agriculture Organization of the UN (FAO). This book was released on 1998 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Part 1, Manual, a selection of methods on fish stock assessment is described in detail, with examples of calculations. Special emphasis is placed on methods based on the analysis of length-frequencies. After a short introduction to statistics, it covers the estimation of growth parameters and mortality rates, virtual population methods, including age-based and length-based cohort analysis, gear selectivity, sampling, prediction models, including Beverton and Holt's yield per recruit model and Thompson and Bell's model, surplus production models, multispecies and multifleet problems, the assessment of migratory stocks, a discussion on stock/recruitment relationships and demersal trawl surveys, including the swept-area method. The manual is completed with a review of stock assessment, where an indication is given of methods to be applied at different levels of availability of input data, a review of relevant computer programs produced by or in cooperation with FAO, and a list of references, including material for further reading. In Part 2, Exercises, a number of exercises is given with solutions. The exercises are directly related to the various chapters and sections of the manual.
Download or read book Manual de m todo para el estudio y la evaluaci n de los recursos pesqueros Parte 2 written by S.T. Forbes and published by . This book was released on 1974 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
