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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Detalles Bibliográficos
Autores principales: López Greco, L.S., Rodríguez, E.M.
Formato: JOUR
Materias:
Crabs
Growth
Reproduction
crab
growth
maturation
reproduction
Argentina
Chasmagnathus granulata
Decapoda
Acceso en línea: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 todo:paper_00079723_v40_n2_p155_LopezGreco
record_format dspace
spelling todo:paper_00079723_v40_n2_p155_LopezGreco2023-10-03T14:05:50Z Annual reproduction and growth of adult crabs Chasmagnathus granulata (Crustacea, Brachyura, Grapsidae) López Greco, L.S. Rodríguez, E.M. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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
López Greco, L.S.
Rodríguez, E.M.
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.
format JOUR
author López Greco, L.S.
Rodríguez, E.M.
author_facet López Greco, L.S.
Rodríguez, E.M.
author_sort López Greco, L.S.
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)
url http://hdl.handle.net/20.500.12110/paper_00079723_v40_n2_p155_LopezGreco
work_keys_str_mv AT lopezgrecols annualreproductionandgrowthofadultcrabschasmagnathusgranulatacrustaceabrachyuragrapsidae
AT rodriguezem annualreproductionandgrowthofadultcrabschasmagnathusgranulatacrustaceabrachyuragrapsidae
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