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Large differences in catch per unit of effort between two minnow trap models
BACKGROUND: Little is known about variation in catch per unit of effort (CPUE) in stickleback fisheries, or the factors explaining this variation. We investigated how nine-spined stickleback (Pungitius pungitius) CPUE was influenced by trap model by comparing the CPUEs of two very similar minnow tra...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3637630/ https://www.ncbi.nlm.nih.gov/pubmed/23590839 http://dx.doi.org/10.1186/1756-0500-6-151 |
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author | Merilä, Juha Lakka, Hanna-Kaisa Eloranta, Antti |
author_facet | Merilä, Juha Lakka, Hanna-Kaisa Eloranta, Antti |
author_sort | Merilä, Juha |
collection | PubMed |
description | BACKGROUND: Little is known about variation in catch per unit of effort (CPUE) in stickleback fisheries, or the factors explaining this variation. We investigated how nine-spined stickleback (Pungitius pungitius) CPUE was influenced by trap model by comparing the CPUEs of two very similar minnow trap models fished side-by-side in a paired experimental design. RESULTS: The galvanized trap type (mean CPUE = 1.31 fish h(–1)) out-fished the black trap type (mean CPUE = 0.20 fish h(–1)) consistently, and yielded on average 81% more fish. CONCLUSIONS: The results demonstrate that small differences in trap appearance can have large impacts on CPUE. This has implications for studies designed to investigate abundance and occurrence of fish using minnow traps. |
format | Online Article Text |
id | pubmed-3637630 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-36376302013-04-28 Large differences in catch per unit of effort between two minnow trap models Merilä, Juha Lakka, Hanna-Kaisa Eloranta, Antti BMC Res Notes Research Article BACKGROUND: Little is known about variation in catch per unit of effort (CPUE) in stickleback fisheries, or the factors explaining this variation. We investigated how nine-spined stickleback (Pungitius pungitius) CPUE was influenced by trap model by comparing the CPUEs of two very similar minnow trap models fished side-by-side in a paired experimental design. RESULTS: The galvanized trap type (mean CPUE = 1.31 fish h(–1)) out-fished the black trap type (mean CPUE = 0.20 fish h(–1)) consistently, and yielded on average 81% more fish. CONCLUSIONS: The results demonstrate that small differences in trap appearance can have large impacts on CPUE. This has implications for studies designed to investigate abundance and occurrence of fish using minnow traps. BioMed Central 2013-04-16 /pmc/articles/PMC3637630/ /pubmed/23590839 http://dx.doi.org/10.1186/1756-0500-6-151 Text en Copyright © 2013 Merilä et al.; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Merilä, Juha Lakka, Hanna-Kaisa Eloranta, Antti Large differences in catch per unit of effort between two minnow trap models |
title | Large differences in catch per unit of effort between two minnow trap models |
title_full | Large differences in catch per unit of effort between two minnow trap models |
title_fullStr | Large differences in catch per unit of effort between two minnow trap models |
title_full_unstemmed | Large differences in catch per unit of effort between two minnow trap models |
title_short | Large differences in catch per unit of effort between two minnow trap models |
title_sort | large differences in catch per unit of effort between two minnow trap models |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3637630/ https://www.ncbi.nlm.nih.gov/pubmed/23590839 http://dx.doi.org/10.1186/1756-0500-6-151 |
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