Large differences in catch per unit of effort between two minnow trap models
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Merilä, J., Lakka, H.-K., & Eloranta, A. (2013). Large differences in catch per unit of effort between two minnow trap models. BMC Research Notes, 6(151). https://doi.org/10.1186/1756-0500-6-151
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2013Copyright
© 2013 Merilä et al.; licensee BioMed Central Ltd.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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.
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Except where otherwise noted, this item's license is described as © 2013 Merilä et al.; licensee BioMed Central Ltd.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.