Population structure of the intertidal crab Cyrtograpsus altimanus (Brachyura: Varunidae) in a northern Patagonia mussel bed

The population structure, size at maturity, reproductive period, recruitment and habitat use were studied in a population of the grapsoid crab Cyrtograpsus altimanus in an intertidal mussel bed at San Antonio Bay, Argentina. Samples were taken from October 2000 to January 2002. Crabs were sized and...

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Autor principal:	Spivak, Eduardo Daniel
Publicado:	2012
Materias:	marine crustaceans population structure refuge size distribution bivalve body size crab growth rate habitat use intertidal community marine ecosystem recruitment (population dynamics) size at maturity Argentina Rio Negro [Argentina] San Antonio Bay [Rio Negro] Brachyura Crustacea Cyrtograpsus altimanus Decapoda (Crustacea) Grapsoidea Varunidae
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253154_v92_n2_p327_Vazquez http://hdl.handle.net/20.500.12110/paper_00253154_v92_n2_p327_Vazquez
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00253154_v92_n2_p327_Vazquez
record_format	dspace
spelling	paper:paper_00253154_v92_n2_p327_Vazquez2023-06-08T14:52:53Z Population structure of the intertidal crab Cyrtograpsus altimanus (Brachyura: Varunidae) in a northern Patagonia mussel bed Spivak, Eduardo Daniel marine crustaceans population structure refuge size distribution bivalve body size crab growth rate habitat use intertidal community marine ecosystem population structure recruitment (population dynamics) refuge size at maturity size distribution Argentina Rio Negro [Argentina] San Antonio Bay [Rio Negro] Brachyura Crustacea Cyrtograpsus altimanus Decapoda (Crustacea) Grapsoidea Varunidae The population structure, size at maturity, reproductive period, recruitment and habitat use were studied in a population of the grapsoid crab Cyrtograpsus altimanus in an intertidal mussel bed at San Antonio Bay, Argentina. Samples were taken from October 2000 to January 2002. Crabs were sized and sexed to estimate size-frequency distributions (SFD). Modal groups of males and females were the same. Growth, evidenced by the shift to right of SFD modal classes, was observed in spring, summer and autumn. Size at maturity of females varied seasonally. Ovigerous females were found in winter, spring and summer, but two discrete recruitment events (in spring and autumn) are proposed. Based on the maximum male and female sizes found in the mussel bed, a size constraint is proposed that forces large crabs to migrate to cobblestone adjacent habitats. © 2011 Marine Biological Association of the United Kingdom. Fil:Spivak, E.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253154_v92_n2_p327_Vazquez http://hdl.handle.net/20.500.12110/paper_00253154_v92_n2_p327_Vazquez
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	marine crustaceans population structure refuge size distribution bivalve body size crab growth rate habitat use intertidal community marine ecosystem population structure recruitment (population dynamics) refuge size at maturity size distribution Argentina Rio Negro [Argentina] San Antonio Bay [Rio Negro] Brachyura Crustacea Cyrtograpsus altimanus Decapoda (Crustacea) Grapsoidea Varunidae
spellingShingle	marine crustaceans population structure refuge size distribution bivalve body size crab growth rate habitat use intertidal community marine ecosystem population structure recruitment (population dynamics) refuge size at maturity size distribution Argentina Rio Negro [Argentina] San Antonio Bay [Rio Negro] Brachyura Crustacea Cyrtograpsus altimanus Decapoda (Crustacea) Grapsoidea Varunidae Spivak, Eduardo Daniel Population structure of the intertidal crab Cyrtograpsus altimanus (Brachyura: Varunidae) in a northern Patagonia mussel bed
topic_facet	marine crustaceans population structure refuge size distribution bivalve body size crab growth rate habitat use intertidal community marine ecosystem population structure recruitment (population dynamics) refuge size at maturity size distribution Argentina Rio Negro [Argentina] San Antonio Bay [Rio Negro] Brachyura Crustacea Cyrtograpsus altimanus Decapoda (Crustacea) Grapsoidea Varunidae
description	The population structure, size at maturity, reproductive period, recruitment and habitat use were studied in a population of the grapsoid crab Cyrtograpsus altimanus in an intertidal mussel bed at San Antonio Bay, Argentina. Samples were taken from October 2000 to January 2002. Crabs were sized and sexed to estimate size-frequency distributions (SFD). Modal groups of males and females were the same. Growth, evidenced by the shift to right of SFD modal classes, was observed in spring, summer and autumn. Size at maturity of females varied seasonally. Ovigerous females were found in winter, spring and summer, but two discrete recruitment events (in spring and autumn) are proposed. Based on the maximum male and female sizes found in the mussel bed, a size constraint is proposed that forces large crabs to migrate to cobblestone adjacent habitats. © 2011 Marine Biological Association of the United Kingdom.
author	Spivak, Eduardo Daniel
author_facet	Spivak, Eduardo Daniel
author_sort	Spivak, Eduardo Daniel
title	Population structure of the intertidal crab Cyrtograpsus altimanus (Brachyura: Varunidae) in a northern Patagonia mussel bed
title_short	Population structure of the intertidal crab Cyrtograpsus altimanus (Brachyura: Varunidae) in a northern Patagonia mussel bed
title_full	Population structure of the intertidal crab Cyrtograpsus altimanus (Brachyura: Varunidae) in a northern Patagonia mussel bed
title_fullStr	Population structure of the intertidal crab Cyrtograpsus altimanus (Brachyura: Varunidae) in a northern Patagonia mussel bed
title_full_unstemmed	Population structure of the intertidal crab Cyrtograpsus altimanus (Brachyura: Varunidae) in a northern Patagonia mussel bed
title_sort	population structure of the intertidal crab cyrtograpsus altimanus (brachyura: varunidae) in a northern patagonia mussel bed
publishDate	2012
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253154_v92_n2_p327_Vazquez http://hdl.handle.net/20.500.12110/paper_00253154_v92_n2_p327_Vazquez
work_keys_str_mv	AT spivakeduardodaniel populationstructureoftheintertidalcrabcyrtograpsusaltimanusbrachyuravarunidaeinanorthernpatagoniamusselbed
_version_	1768546618400833536

Population structure of the intertidal crab Cyrtograpsus altimanus (Brachyura: Varunidae) in a northern Patagonia mussel bed

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