Annual reproduction and growth of adult crabs Chasmagnathus granulata (Crustacea, Brachyura, Grapsidae)

Somatic growth and gonadal maturation of Chasmagnathus granulata (Grapsidae, Sesarminae) were studied throughout one year. Spawning and moulting were recorded under controlled laboratory conditions, while gonadosomatic (GI) and hepatosomatic (HI) indexes were estimated from crabs monthly sampled at...

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Guardado en:
Detalles Bibliográficos
Publicado: 1999
Materias:
Crabs
Growth
Reproduction
crab
growth
maturation
reproduction
Argentina
Chasmagnathus granulata
Decapoda
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00079723_v40_n2_p155_LopezGreco
http://hdl.handle.net/20.500.12110/paper_00079723_v40_n2_p155_LopezGreco
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00079723_v40_n2_p155_LopezGreco
record_format dspace
spelling paper:paper_00079723_v40_n2_p155_LopezGreco2023-06-08T14:31:51Z Annual reproduction and growth of adult crabs Chasmagnathus granulata (Crustacea, Brachyura, Grapsidae) Crabs Growth Reproduction crab growth maturation reproduction Argentina Chasmagnathus granulata Decapoda Somatic growth and gonadal maturation of Chasmagnathus granulata (Grapsidae, Sesarminae) were studied throughout one year. Spawning and moulting were recorded under controlled laboratory conditions, while gonadosomatic (GI) and hepatosomatic (HI) indexes were estimated from crabs monthly sampled at field (Samborombon Bay, Argentina). Adult females may have at the most four broods during the reproductive season (September to March i.e. Spring-Summer), with one month of incubation period. Brooding and larval eclosion are correlated with the lunar cycle, a fact which favour the larval dispersion to the sea. Females can moult during the reproductive period, with a higher percentage than males. The highest percentage of moulting was observed for both sexes after the reproductive season during April and May (autumn). The seasonal change of the gonadosomatic index indicates that the gonads begin to develop in winter (June to August) after the moulting period. 1999 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00079723_v40_n2_p155_LopezGreco http://hdl.handle.net/20.500.12110/paper_00079723_v40_n2_p155_LopezGreco
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Crabs
Growth
Reproduction
crab
growth
maturation
reproduction
Argentina
Chasmagnathus granulata
Decapoda
spellingShingle Crabs
Growth
Reproduction
crab
growth
maturation
reproduction
Argentina
Chasmagnathus granulata
Decapoda
Annual reproduction and growth of adult crabs Chasmagnathus granulata (Crustacea, Brachyura, Grapsidae)
topic_facet Crabs
Growth
Reproduction
crab
growth
maturation
reproduction
Argentina
Chasmagnathus granulata
Decapoda
description Somatic growth and gonadal maturation of Chasmagnathus granulata (Grapsidae, Sesarminae) were studied throughout one year. Spawning and moulting were recorded under controlled laboratory conditions, while gonadosomatic (GI) and hepatosomatic (HI) indexes were estimated from crabs monthly sampled at field (Samborombon Bay, Argentina). Adult females may have at the most four broods during the reproductive season (September to March i.e. Spring-Summer), with one month of incubation period. Brooding and larval eclosion are correlated with the lunar cycle, a fact which favour the larval dispersion to the sea. Females can moult during the reproductive period, with a higher percentage than males. The highest percentage of moulting was observed for both sexes after the reproductive season during April and May (autumn). The seasonal change of the gonadosomatic index indicates that the gonads begin to develop in winter (June to August) after the moulting period.
title Annual reproduction and growth of adult crabs Chasmagnathus granulata (Crustacea, Brachyura, Grapsidae)
title_short Annual reproduction and growth of adult crabs Chasmagnathus granulata (Crustacea, Brachyura, Grapsidae)
title_full Annual reproduction and growth of adult crabs Chasmagnathus granulata (Crustacea, Brachyura, Grapsidae)
title_fullStr Annual reproduction and growth of adult crabs Chasmagnathus granulata (Crustacea, Brachyura, Grapsidae)
title_full_unstemmed Annual reproduction and growth of adult crabs Chasmagnathus granulata (Crustacea, Brachyura, Grapsidae)
title_sort annual reproduction and growth of adult crabs chasmagnathus granulata (crustacea, brachyura, grapsidae)
publishDate 1999
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00079723_v40_n2_p155_LopezGreco
http://hdl.handle.net/20.500.12110/paper_00079723_v40_n2_p155_LopezGreco
_version_ 1768543353329156096

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