Population structure of the deep sea hermit-crab Catapaguroides microps (Paguroidea, Anomura) in the Campos Basin, RJ, Brazil
The population of Catapaguroides microps A. Milne-Edwards and Bouvier, 1892 in the Campos Basin was studied with an emphasis on its composition in the Northern and Southern parts of the Basin, the different gender sizes, sex ratio, and size class distribution. Specimens were collected under the &quo...
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Universidade de São Paulo
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doaj-64e673ce7e814b869ddec5969e9b289d2020-11-24T21:04:48ZengUniversidade de São PauloBrazilian Journal of Oceanography 1679-87591982-436X2010-01-0158spe4192310.1590/S1679-87592010000800004Population structure of the deep sea hermit-crab Catapaguroides microps (Paguroidea, Anomura) in the Campos Basin, RJ, BrazilLuana S. F. LinsTarso CostaThe population of Catapaguroides microps A. Milne-Edwards and Bouvier, 1892 in the Campos Basin was studied with an emphasis on its composition in the Northern and Southern parts of the Basin, the different gender sizes, sex ratio, and size class distribution. Specimens were collected under the "Program for the Environmental Characterization of the deep waters of the Campos Basin" ("Programa de Caracterização Ambiental das Águas Profundas da Bacia de Campos") in February and August 2003. A total of 339 hermit crabs were analyzed. Individual abundance was higher in the North. C. microps shows sexual dimorphism for body size, the males being larger than the females. The sex ratio is skewed in the female's favor (1:0.7), as shown by previous studies on shallow-water populations.<br>A população de Catapaguroides microps A. Milne-Edwards and Bouvier, 1892 da foi analisada com foco na abundância de indivíduos, diferença de tamanho entre machos e fêmeas, razão sexual e distribuição dos indivíduos nas classes de tamanho, ao norte e ao sul da Bacia de Campos. As amostras foram coletadas pelo Programa de Caracterização Ambiental da Bacia de Campos em fevereiro e agosto de 2003. O total de indivíduos analizados foi de 339. A abundância foi maior no norte da Bacia de Campos. Catapaguroides microps mostrou dimorfismo sexual no tamanho do corpo, sendo os machos maiores que as fêmeas. A razão sexual favorece as fêmeas (1:0,7), de forma similar a outros estudos efetuados com populações de águas rasas.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87592010000800004DecapodaPaguridaeAtlântico sudoestebiologia populacionalrazão sexualDecapodaPaguridaeSouthwest Atlanticpopulation biologysex ratio |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Luana S. F. Lins Tarso Costa |
spellingShingle |
Luana S. F. Lins Tarso Costa Population structure of the deep sea hermit-crab Catapaguroides microps (Paguroidea, Anomura) in the Campos Basin, RJ, Brazil Brazilian Journal of Oceanography Decapoda Paguridae Atlântico sudoeste biologia populacional razão sexual Decapoda Paguridae Southwest Atlantic population biology sex ratio |
author_facet |
Luana S. F. Lins Tarso Costa |
author_sort |
Luana S. F. Lins |
title |
Population structure of the deep sea hermit-crab Catapaguroides microps (Paguroidea, Anomura) in the Campos Basin, RJ, Brazil |
title_short |
Population structure of the deep sea hermit-crab Catapaguroides microps (Paguroidea, Anomura) in the Campos Basin, RJ, Brazil |
title_full |
Population structure of the deep sea hermit-crab Catapaguroides microps (Paguroidea, Anomura) in the Campos Basin, RJ, Brazil |
title_fullStr |
Population structure of the deep sea hermit-crab Catapaguroides microps (Paguroidea, Anomura) in the Campos Basin, RJ, Brazil |
title_full_unstemmed |
Population structure of the deep sea hermit-crab Catapaguroides microps (Paguroidea, Anomura) in the Campos Basin, RJ, Brazil |
title_sort |
population structure of the deep sea hermit-crab catapaguroides microps (paguroidea, anomura) in the campos basin, rj, brazil |
publisher |
Universidade de São Paulo |
series |
Brazilian Journal of Oceanography |
issn |
1679-8759 1982-436X |
publishDate |
2010-01-01 |
description |
The population of Catapaguroides microps A. Milne-Edwards and Bouvier, 1892 in the Campos Basin was studied with an emphasis on its composition in the Northern and Southern parts of the Basin, the different gender sizes, sex ratio, and size class distribution. Specimens were collected under the "Program for the Environmental Characterization of the deep waters of the Campos Basin" ("Programa de Caracterização Ambiental das Águas Profundas da Bacia de Campos") in February and August 2003. A total of 339 hermit crabs were analyzed. Individual abundance was higher in the North. C. microps shows sexual dimorphism for body size, the males being larger than the females. The sex ratio is skewed in the female's favor (1:0.7), as shown by previous studies on shallow-water populations.<br>A população de Catapaguroides microps A. Milne-Edwards and Bouvier, 1892 da foi analisada com foco na abundância de indivíduos, diferença de tamanho entre machos e fêmeas, razão sexual e distribuição dos indivíduos nas classes de tamanho, ao norte e ao sul da Bacia de Campos. As amostras foram coletadas pelo Programa de Caracterização Ambiental da Bacia de Campos em fevereiro e agosto de 2003. O total de indivíduos analizados foi de 339. A abundância foi maior no norte da Bacia de Campos. Catapaguroides microps mostrou dimorfismo sexual no tamanho do corpo, sendo os machos maiores que as fêmeas. A razão sexual favorece as fêmeas (1:0,7), de forma similar a outros estudos efetuados com populações de águas rasas. |
topic |
Decapoda Paguridae Atlântico sudoeste biologia populacional razão sexual Decapoda Paguridae Southwest Atlantic population biology sex ratio |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87592010000800004 |
work_keys_str_mv |
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