Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
| one publication added to basket [99755] |
Sampling methods applied to fisheries science: a manual
Cadima, E.L.; Caramelo, A.M.; Afonso-Dias, M.; Tandstad, M.O. (2005). Sampling methods applied to fisheries science: a manual. FAO Fisheries Technical Paper = FAO Document technique sur les pêches, 434. FAO: Rome. 88 pp.
Deel van: FAO Fisheries Technical Paper = FAO Document technique sur les pêches. FAO: Roma. ISSN 0429-9345, meer
|
| Trefwoorden |
Fishery sciences
Sampling
Marien/Kust |
| Auteurs | | Top |
- Cadima, E.L.
- Caramelo, A.M.
- Afonso-Dias, M.
- Tandstad, M.O.
|
|
|
| Abstract |
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. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
