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Cambridge University Press, Journal of the Marine Biological Association of the UK, p. 1-4

DOI: 10.1017/s002531541800067x

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Estimating the density of Pennant's swimming crab, Portumnus latipes (Pennant, 1777) in the swash zone using baited stakes and area of attraction

Journal article published in 2018 by Claudia Cores, Miguel B. Gaspar, Karim Erzini
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

AbstractWe used a new, easy to use, highly selective, low impact and cheap method of sampling in the swash zone of a sandy beach to obtain catch per unit effort data (CPUE) for Pennant's swimming crab, Portumnus latipes (Pennant, 1777). Metal stakes baited with sardines were used to attract the crabs that were caught by hand. Crab density was estimated based on area of attraction and maximum CPUE and compared with estimates from bivalve dredges used at depths from 3 to 6.5 m. The baited stake method gave an estimate of 0.026 crabs m−2, which is comparable to bivalve dredge estimates (0.0059–0.045 crabs m−2). This approach can be used for crustaceans, gastropods and other mobile benthic organisms.