Morphometry of the crab Hexapanopeus schmitti (Decapoda: Xanthoidea) on the northern coast of the state of São Paulo, Brazil
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| Formato: | Online |
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Universidad de Costa Rica
2007
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| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/5816 |
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RBT58162023-03-16T16:20:57Z Morphometry of the crab Hexapanopeus schmitti (Decapoda: Xanthoidea) on the northern coast of the state of São Paulo, Brazil Morphometry of the crab Hexapanopeus schmitti (Decapoda: Xanthoidea) on the northern coast of the state of São Paulo, Brazil B. Fumis, Patricia Fransozo, Adilson Bertini - Adriane A. Braga, Giovana Crecimiento relativo Xanthoidea heteroquelia Hexapanopeus schmitti Relative growth heterochely A morphometric study of the xanthoid crab Hexapanopeus schmitti was carried out, using the allometric method. Samples were taken monthly for two years (1998-1999) in the Ubatuba region, northern coast of São Paulo, Brazil. Sex and size were assessed for each specimen, and all crabs were measured to obtain their carapace width (CW) and length (CL), abdomen width (AW) of females, major cheliped propodus length and height (PL and PH), and gonopod length (GL) of males. A total of 301 crabs were analyzed, 209 males and 92 females. The CWs of the crabs ranged from 2.5 to 9.8 mm for males and from 2.8 to 9.4 mm for females. The relative growth equation (y=ax^b) based on the relationship between GL and CW suggested that males reach their morphological sexual maturity near 6.1 mm CW. In females, the estimated size at 50 % maturity was 4.8 mm CW, based on the relationship of AW vs. CW. Males reach larger sizes than females, which probably favors their ability to guard the females during courtship. In approximately 83 % of the crabs (n= 371), disregarding sex, the right cheliped was larger. Universidad de Costa Rica 2007-06-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/5816 10.15517/rbt.v55i0.5816 Revista de Biología Tropical; Vol. 55 No. S1 (2007): Volume 55 – Supplement 1 – June 2007: Proceedings of Crustacea - Workshop; 163–170 Revista de Biología Tropical; Vol. 55 Núm. S1 (2007): Volumen 55 – Suplemento 1 – Junio 2007: Reunión Crustacea - Taller; 163–170 Revista Biología Tropical; Vol. 55 N.º S1 (2007): Volume 55 – Supplement 1 – June 2007: Proceedings of Crustacea - Workshop; 163–170 2215-2075 0034-7744 10.15517/rbt.v55i0 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/5816/5552 Copyright (c) 2007 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 |
| institution |
Universidad de Costa Rica |
| collection |
Revista de Biología Tropical |
| language |
eng |
| format |
Online |
| author |
B. Fumis, Patricia Fransozo, Adilson Bertini - Adriane A. Braga, Giovana |
| spellingShingle |
B. Fumis, Patricia Fransozo, Adilson Bertini - Adriane A. Braga, Giovana Morphometry of the crab Hexapanopeus schmitti (Decapoda: Xanthoidea) on the northern coast of the state of São Paulo, Brazil |
| author_facet |
B. Fumis, Patricia Fransozo, Adilson Bertini - Adriane A. Braga, Giovana |
| author_sort |
B. Fumis, Patricia |
| title |
Morphometry of the crab Hexapanopeus schmitti (Decapoda: Xanthoidea) on the northern coast of the state of São Paulo, Brazil |
| title_short |
Morphometry of the crab Hexapanopeus schmitti (Decapoda: Xanthoidea) on the northern coast of the state of São Paulo, Brazil |
| title_full |
Morphometry of the crab Hexapanopeus schmitti (Decapoda: Xanthoidea) on the northern coast of the state of São Paulo, Brazil |
| title_fullStr |
Morphometry of the crab Hexapanopeus schmitti (Decapoda: Xanthoidea) on the northern coast of the state of São Paulo, Brazil |
| title_full_unstemmed |
Morphometry of the crab Hexapanopeus schmitti (Decapoda: Xanthoidea) on the northern coast of the state of São Paulo, Brazil |
| title_sort |
morphometry of the crab hexapanopeus schmitti (decapoda: xanthoidea) on the northern coast of the state of são paulo, brazil |
| title_alt |
Morphometry of the crab Hexapanopeus schmitti (Decapoda: Xanthoidea) on the northern coast of the state of São Paulo, Brazil |
| publisher |
Universidad de Costa Rica |
| publishDate |
2007 |
| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/5816 |
| work_keys_str_mv |
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