A new statistic for sampling design investigation : an application to length-structured landings sampling

Type Proceedings paper
Date 2005-09-19
Language English
Author(s) Vigneau JoelORCID, Mahevas Stephanie
Meeting ICES Annual Science Conference. Aberdeen 19 – 24 September 2005. CM 2005/Z :07
Source ICES CM 2005/Z :07
Keyword(s) stratification, sampling design, length structure, market sampling
Abstract Measuring fish on a market or on board a vessel is the most common action taken by biologists all around the world to gather data for stock assessment. The samples coming from this kind of survey are of vector type and are not straightforward to analyse and compare. This paper proposes a generic tool that enables to investigate in any multinomial like sampling scheme. The use of this tool will be discussed based on examples from two different sampling designs. One is a sampling of commercial market categories and the other is a métier based sampling. The research of outliers, misallocated samples or potential bias, the stratification and the analysis of within and between strata variance will be discussed with the objective of constructing the best sampling design and insure the quality of the input data for stock assessment models. This statistic is easy to implement and should be considered as a mandatory step to validate the sampling data at an international level.
Full Text
File Pages Size Access
acte-2698.pdf 15 161 KB Open access
Top of the page

How to cite 

Vigneau Joel, Mahevas Stephanie (2005). A new statistic for sampling design investigation : an application to length-structured landings sampling. ICES CM 2005/Z :07. https://archimer.ifremer.fr/doc/00000/2698/