A simple statistical method for catch comparison studies

René Holst, Andrew Revill

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

For analysing catch comparison data, we propose a simple method based on Generalised Linear Mixed Models (GLMM) and use polynomial approximations to fit the proportions caught in the test codend. The method provides comparisons of fish catch at length by the two gears through a continuous curve with a realistic confidence band. We demonstrate the versatility of this method, on field data obtained from the first known testing in European waters of the Rhode Island (USA) 'Eliminator' trawl. These data are interesting as they include a range of species with different selective patterns. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.
Original languageEnglish
JournalFisheries Research
Volume95
Issue number2-3
Pages (from-to)254-259
ISSN0165-7836
DOIs
Publication statusPublished - 2009

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