Comparison of three quick methods to estimate crab size in the land crabs Cardisoma guanhumi Latreille, 1825 and Ucides cordatus (Crustacea: Brachyura: Gecarcinidae and Ucididae).

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Date
2012Author
Carmona-Suárez, Carlos
Guerra-Castro, Edlin
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Quick, reliable and non destructive methods are necessary to estimate size structure on commercial
land crabs, in order to acquire relevant information concerning the health of their populations. Cardisoma guanhumi
and Ucides cordatus are two land crabs that are exploited at a high scale and also in an artisan way in the
Caribbean area and in the coasts of Brazil, which populations are endangered due to uncontrolled exploitation.
The purpose of this work is to provide various methods to estimate indirectly crab body size. Sampling was
carried out in Carenero (C. guanhumi) and Cumaná (U. cordatus) (Venezuela). For each species, three methods
were used to measure burrow diameter (Vernier, internal spring caliper and photograph), and these were correlated
with real body size of the crabs. Model II linear regression analyzes, i.e. Ordinary Least Squares and Mayor
Axis, were used to build and test the performance of forecasting models. Cardisoma guanhumi showed a high
bivariate dat.....
Resource URL
https://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442012000500012&lng=en&nrm=isoJournal
Revista de Biologia TropicalVolume
60Issue
Supp. 1Page Range
pp.139-149Document Language
enSustainable Development Goals (SDG)
14.aMaturity Level
MatureISSN
0034-7744DOI Original
https://doi.org/10.15517/rbt.v60i0.19854Citation
Carmona-Suárez, Carlos Alberto, and Edlin Guerra-Castro (2012) Comparison of three quick methods to estimate crab size in the land crabs Cardisoma guanhumi Latreille, 1825 and Ucides cordatus (Crustacea: Brachyura: Gecarcinidae and Ucididae). Revista de Biología Tropical, 60: Suppl. 1, pp.139-149. DOI: https://doi.org/10.15517/rbt.v60i0.19854Collections