FAO fisheries biology technical paper
Author :
Publisher :
Page : 758 pages
File Size : 12,20 MB
Release : 1964
Category : Fisheries
ISBN :
Author :
Publisher :
Page : 758 pages
File Size : 12,20 MB
Release : 1964
Category : Fisheries
ISBN :
Author : Emygdio L. Cadima
Publisher : Food & Agriculture Org.
Page : 102 pages
File Size : 46,52 MB
Release : 2005
Category : Technology & Engineering
ISBN : 9789251053973
The main objective of this manual is to present the basic and standard concepts of sampling methods applied to fisheries science. In order to ensure sound fisheries research, it is essential to have reliable data from landing ports, fishery stocks and research surveys. A rational management of fishing resources can then be established to ensure a sustainable exploitation rate and responsible fisheries management, providing long-term benefits for all. This document provides an introduction to sampling theory and introduces the theory of the three worlds (population, sample and sampling), as well as a short revision of probability concepts. It also provides an overview of the simple random, random stratified, cluster and two-stage sampling methods. The expressions for estimating the mean and total of the populations, their sampling distributions, the expected values, the sampling variances and their estimates are included and justified for each of the sampling designs. The document also contains a case study of biological sampling from landing ports and exercises that should be used to further understanding of the objectives of sampling and its advantages for fishery resource studies.
Author : Cassandra De Young
Publisher : Food & Agriculture Org.
Page : 740 pages
File Size : 33,62 MB
Release : 2006
Category : Nature
ISBN : 9789251054994
Analyses the trends in legal and administrative frameworks, management regimes and status of marine capture fisheries for 32 countries in the Indian Ocean. This book presents an informative reference for policy decision-makers, fishery managers and stakeholders, on the impetus for countries to strengthen their fisheries management.
Author : Emygdio L. Cadima
Publisher : Food & Agriculture Org.
Page : 188 pages
File Size : 22,6 MB
Release : 2003
Category : Business & Economics
ISBN : 9789251045053
This manual examines mathematical models applied in fish stock assessment, including models and variation rates; cohort models and analyses; stock fishing patterns, components, stock-recruitment relations, short- and long-term stock projections; fisheries resources management with regards to biological reference points and regulation measures; production models; estimation of parameters; and exercises.
Author : W. B. Hall
Publisher :
Page : 52 pages
File Size : 14,22 MB
Release : 1968
Category : Fisheries
ISBN :
Author : Environmental Science Information Center. Library and Information Services Division
Publisher :
Page : 578 pages
File Size : 19,7 MB
Release : 1977
Category : Earth sciences
ISBN :
Author : Environmental Science Information Center. Library and Information Services Division
Publisher :
Page : 582 pages
File Size : 13,32 MB
Release : 1977
Category :
ISBN :
Author : Per Sparre
Publisher : Food & Agriculture Org.
Page : 190 pages
File Size : 30,65 MB
Release : 2000
Category : Business & Economics
ISBN : 9789251045268
This manual deals with the practical implementation of a routine data collection programme. The data collection programme is developed through a top-down approach, from the identification of the objectives down to the practical recording and management of data obtained from the fishery. The issues are dealth with both through detailed discussion and by using simple examples. The examples are mostly based on situations in tropical fisheries, and in particular, experience has been drawn from developing a data collection programme in Viet Nam. The main questions addressed i n the manual are which fisheries data to collect, where and when to collect them. Only data from commercial marine capture fisheries are considered. The methodologies used are mainly appropriate for a tropical, developing county, with many small (artisanal) vessels and a few large (industrial) vessels. The methodology is the "sample-based approach". The data collection methodology presented attempts to utilize whatever information can be obtained in practice in a developing country.
Author : Grati, F., Carlson, A., Carpentieri, P. & Cerri, J.
Publisher : Food & Agriculture Org.
Page : 86 pages
File Size : 24,28 MB
Release : 2021-07-06
Category : Technology & Engineering
ISBN : 9251346305
Marine recreational fisheries are an integral part of Mediterranean and Black Sea coastal life and are commonly practiced throughout the region. Recreational fisheries also represent an important driver of coastal tourism, which constitutes one of the region’s most important maritime sectors in terms of gross value added and employment. However, despite their ubiquity and potential socio-economic contribution, recreational fisheries are a data-poor sector and can vary widely from one country to another, thus impairing proper consideration of the recreational fisheries sector in policy-making and undermining efforts towards sustainable fisheries management at the regional level. The main goal of this handbook is therefore to provide a clear methodological framework to allow Mediterranean and Black Sea countries to implement suitably harmonized sampling and survey monitoring schemes for recreational fisheries. This handbook establishes a minimum set of necessary information for monitoring recreational fisheries, while, at the same time, allowing for flexibility to accommodate national specificities and data collection needs. It also provide guidance on the data analysis process as well as advice to successfully engage stakeholders in the data collection process.
Author : Environmental Science Information Center. Library and Information Services Division
Publisher :
Page : 508 pages
File Size : 13,54 MB
Release : 1977
Category : Earth sciences
ISBN :