Somatic growth in juveniles of the estuarine crab Chasmagnathus granulata Dana 1851 (Brachyura, Grapsidae), under laboratory conditions

Male and female juvenile crabs of the species Chasmagnathus granulata were collected in Samborombón Bay (Argentina), on October 1994 and February 1995; these dates correspond to the beginning and end of the reproductive period of the species, respectively. No differences in the initial size (measure...

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Autores principales:	López,Laura S., Rodríguez,Enrique M.
Lenguaje:	English
Publicado:	Escuela de Ciencias del Mar. Pontificia Universidad Católica de Valparaíso 1998
Materias:	somatic growth juveniles crabs laboratory conditions
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-71781998002600012
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spelling	oai:scielo:S0717-717819980026000122003-03-10Somatic growth in juveniles of the estuarine crab Chasmagnathus granulata Dana 1851 (Brachyura, Grapsidae), under laboratory conditionsLópez,Laura S.Rodríguez,Enrique M. somatic growth juveniles crabs laboratory conditions Male and female juvenile crabs of the species Chasmagnathus granulata were collected in Samborombón Bay (Argentina), on October 1994 and February 1995; these dates correspond to the beginning and end of the reproductive period of the species, respectively. No differences in the initial size (measured as carapace width, CW) existed between both clutches. Each clutch of juveniles was observed during a 1-year period, recording the percentage of molted crabs, intermolt period and percentual increment of size after each molting. At the end of the observation period, males and females from the October clutch reached the size of sexual maturity, while crabs of the remaining clutch did not. This difference was due to the higher increment in size of the October crabs at the third and fourth molts, compared to the February ones. Such difference seems to be related to an increase in reproductive effort during the breeding season, once the sexual maturity was attainedinfo:eu-repo/semantics/openAccessEscuela de Ciencias del Mar. Pontificia Universidad Católica de ValparaísoInvestigaciones marinas v.26 19981998-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-71781998002600012en10.4067/S0717-71781998002600012
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	somatic growth juveniles crabs laboratory conditions
spellingShingle	somatic growth juveniles crabs laboratory conditions López,Laura S. Rodríguez,Enrique M. Somatic growth in juveniles of the estuarine crab Chasmagnathus granulata Dana 1851 (Brachyura, Grapsidae), under laboratory conditions
description	Male and female juvenile crabs of the species Chasmagnathus granulata were collected in Samborombón Bay (Argentina), on October 1994 and February 1995; these dates correspond to the beginning and end of the reproductive period of the species, respectively. No differences in the initial size (measured as carapace width, CW) existed between both clutches. Each clutch of juveniles was observed during a 1-year period, recording the percentage of molted crabs, intermolt period and percentual increment of size after each molting. At the end of the observation period, males and females from the October clutch reached the size of sexual maturity, while crabs of the remaining clutch did not. This difference was due to the higher increment in size of the October crabs at the third and fourth molts, compared to the February ones. Such difference seems to be related to an increase in reproductive effort during the breeding season, once the sexual maturity was attained
author	López,Laura S. Rodríguez,Enrique M.
author_facet	López,Laura S. Rodríguez,Enrique M.
author_sort	López,Laura S.
title	Somatic growth in juveniles of the estuarine crab Chasmagnathus granulata Dana 1851 (Brachyura, Grapsidae), under laboratory conditions
title_short	Somatic growth in juveniles of the estuarine crab Chasmagnathus granulata Dana 1851 (Brachyura, Grapsidae), under laboratory conditions
title_full	Somatic growth in juveniles of the estuarine crab Chasmagnathus granulata Dana 1851 (Brachyura, Grapsidae), under laboratory conditions
title_fullStr	Somatic growth in juveniles of the estuarine crab Chasmagnathus granulata Dana 1851 (Brachyura, Grapsidae), under laboratory conditions
title_full_unstemmed	Somatic growth in juveniles of the estuarine crab Chasmagnathus granulata Dana 1851 (Brachyura, Grapsidae), under laboratory conditions
title_sort	somatic growth in juveniles of the estuarine crab chasmagnathus granulata dana 1851 (brachyura, grapsidae), under laboratory conditions
publisher	Escuela de Ciencias del Mar. Pontificia Universidad Católica de Valparaíso
publishDate	1998
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-71781998002600012
work_keys_str_mv	AT lopezlauras somaticgrowthinjuvenilesoftheestuarinecrabchasmagnathusgranulatadana1851brachyuragrapsidaeunderlaboratoryconditions AT rodriguezenriquem somaticgrowthinjuvenilesoftheestuarinecrabchasmagnathusgranulatadana1851brachyuragrapsidaeunderlaboratoryconditions
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Somatic growth in juveniles of the estuarine crab Chasmagnathus granulata Dana 1851 (Brachyura, Grapsidae), under laboratory conditions

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