Morphometric sexual maturity and allometric growth of the crab Sesarma rectum Randall, 1840 (Crustacea: Sesarmidae) in an impacted tropical mangrove in northeast Brazil

The size at sexual maturity and the allometric growth of the semi-terrestrial crab Sesarma rectum were studied in an impacted tropical mangrove in northeast Brazil. Crabs were monthly collected during spring low-tide periods, from October 2009 through September 2010. A catch-per-unit-effort (CPUE) t...

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Autores principales:	Bezerra Ribeiro,Felipe, Matthews Cascon,Helena, Arruda Bezerra,Luis Ernesto
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2013
Materias:	Sesarma rectum sexual maturity allometric growth tropical mangrove northeast Brazil
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2013000200015
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spelling	oai:scielo:S0718-560X20130002000152013-08-13Morphometric sexual maturity and allometric growth of the crab Sesarma rectum Randall, 1840 (Crustacea: Sesarmidae) in an impacted tropical mangrove in northeast BrazilBezerra Ribeiro,FelipeMatthews Cascon,HelenaArruda Bezerra,Luis Ernesto Sesarma rectum sexual maturity allometric growth tropical mangrove northeast Brazil The size at sexual maturity and the allometric growth of the semi-terrestrial crab Sesarma rectum were studied in an impacted tropical mangrove in northeast Brazil. Crabs were monthly collected during spring low-tide periods, from October 2009 through September 2010. A catch-per-unit-effort (CPUE) technique was used to sample the crab population, with two-hour sampling periods, by two people. A total of 492 crabs were obtained, being 262 males and 230 females. The specimens were measured at carapace width (CW), the left and right propodus length and height (RPL, RPH, LPL and LPH), and the gonopod length of males (GL), and abdomen width (AW) of females. In males, the inflection point was at 27.14 mm CW in the relationship between CW and the length of right propodus (LRP), considering the morphological size at the onset of maturity. Based on the relationship between CW and AW, the size at sexual maturity in females was 22.97 mm. In spite of living in an impacted area, this population attained the maturity onset at a bigger size than other localities.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.41 n.2 20132013-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2013000200015en10.3856/vol41-issue2-fulltext-15
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Sesarma rectum sexual maturity allometric growth tropical mangrove northeast Brazil
spellingShingle	Sesarma rectum sexual maturity allometric growth tropical mangrove northeast Brazil Bezerra Ribeiro,Felipe Matthews Cascon,Helena Arruda Bezerra,Luis Ernesto Morphometric sexual maturity and allometric growth of the crab Sesarma rectum Randall, 1840 (Crustacea: Sesarmidae) in an impacted tropical mangrove in northeast Brazil
description	The size at sexual maturity and the allometric growth of the semi-terrestrial crab Sesarma rectum were studied in an impacted tropical mangrove in northeast Brazil. Crabs were monthly collected during spring low-tide periods, from October 2009 through September 2010. A catch-per-unit-effort (CPUE) technique was used to sample the crab population, with two-hour sampling periods, by two people. A total of 492 crabs were obtained, being 262 males and 230 females. The specimens were measured at carapace width (CW), the left and right propodus length and height (RPL, RPH, LPL and LPH), and the gonopod length of males (GL), and abdomen width (AW) of females. In males, the inflection point was at 27.14 mm CW in the relationship between CW and the length of right propodus (LRP), considering the morphological size at the onset of maturity. Based on the relationship between CW and AW, the size at sexual maturity in females was 22.97 mm. In spite of living in an impacted area, this population attained the maturity onset at a bigger size than other localities.
author	Bezerra Ribeiro,Felipe Matthews Cascon,Helena Arruda Bezerra,Luis Ernesto
author_facet	Bezerra Ribeiro,Felipe Matthews Cascon,Helena Arruda Bezerra,Luis Ernesto
author_sort	Bezerra Ribeiro,Felipe
title	Morphometric sexual maturity and allometric growth of the crab Sesarma rectum Randall, 1840 (Crustacea: Sesarmidae) in an impacted tropical mangrove in northeast Brazil
title_short	Morphometric sexual maturity and allometric growth of the crab Sesarma rectum Randall, 1840 (Crustacea: Sesarmidae) in an impacted tropical mangrove in northeast Brazil
title_full	Morphometric sexual maturity and allometric growth of the crab Sesarma rectum Randall, 1840 (Crustacea: Sesarmidae) in an impacted tropical mangrove in northeast Brazil
title_fullStr	Morphometric sexual maturity and allometric growth of the crab Sesarma rectum Randall, 1840 (Crustacea: Sesarmidae) in an impacted tropical mangrove in northeast Brazil
title_full_unstemmed	Morphometric sexual maturity and allometric growth of the crab Sesarma rectum Randall, 1840 (Crustacea: Sesarmidae) in an impacted tropical mangrove in northeast Brazil
title_sort	morphometric sexual maturity and allometric growth of the crab sesarma rectum randall, 1840 (crustacea: sesarmidae) in an impacted tropical mangrove in northeast brazil
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2013000200015
work_keys_str_mv	AT bezerraribeirofelipe morphometricsexualmaturityandallometricgrowthofthecrabsesarmarectumrandall1840crustaceasesarmidaeinanimpactedtropicalmangroveinnortheastbrazil AT matthewscasconhelena morphometricsexualmaturityandallometricgrowthofthecrabsesarmarectumrandall1840crustaceasesarmidaeinanimpactedtropicalmangroveinnortheastbrazil AT arrudabezerraluisernesto morphometricsexualmaturityandallometricgrowthofthecrabsesarmarectumrandall1840crustaceasesarmidaeinanimpactedtropicalmangroveinnortheastbrazil
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Morphometric sexual maturity and allometric growth of the crab Sesarma rectum Randall, 1840 (Crustacea: Sesarmidae) in an impacted tropical mangrove in northeast Brazil

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