Size at first maturity, oocyte envelopes and external morphology of sperm in three species of lucinidae (Mollusca: Bivalvia) from Florida Keys, U.S.A.

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Gonads in the tropical lucinid bivalves Ctena orbiculata, Codakia orbicularis, and Lucina pensylvanica are located in the cephalopodial mass above the foot and behind the gills. Age estimates for Lucina pensylvanica suggest that individuals less than one year old are immature, as also is C. orbicula...

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Detalles Bibliográficos
Autores principales: Bigatti, G., Peharda, M., Taylor, J.
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 2004
Materias:
Lucinidae
Oocytes
Reproduction
Sperm
Bivalvia
Codakia orbicularis
Ctena orbiculata
Lucina pensylvanica
Mollusca
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00762997_v46_n2_p417_Bigatti
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paperaa:paper_00762997_v46_n2_p417_Bigatti2023-06-12T16:45:54Z Size at first maturity, oocyte envelopes and external morphology of sperm in three species of lucinidae (Mollusca: Bivalvia) from Florida Keys, U.S.A. Malacologia 2004;46(2):417-426 Bigatti, G. Peharda, M. Taylor, J. Lucinidae Oocytes Reproduction Sperm Bivalvia Codakia orbicularis Ctena orbiculata Lucina pensylvanica Lucinidae Mollusca Gonads in the tropical lucinid bivalves Ctena orbiculata, Codakia orbicularis, and Lucina pensylvanica are located in the cephalopodial mass above the foot and behind the gills. Age estimates for Lucina pensylvanica suggest that individuals less than one year old are immature, as also is C. orbicularis, and that both males and females mature at two years. For Ctena orbiculata, we have no age data, but we consider that this species may also have early development. In July 2002 when water temperatures were high, mature individuals of all three species were spawning or in resorption, and oocyte envelopes were present. Parasites were found in the digestive diverticula of C. orbiculata and L. pensylvanica. External ultrastructure of the spermatozoon shows differences between the three species. Codakia orbicularis and L. pensylvanica have a long-headed spermatozoa, whereas Ctena orbiculata has a middle-size head. Codakia orbicularis possesses a flagellum with a lateral undulating membrane, absent from the two other species. Fil:Bigatti, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2004 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00762997_v46_n2_p417_Bigatti
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Inglés
orig_language_str_mv eng
topic Lucinidae
Oocytes
Reproduction
Sperm
Bivalvia
Codakia orbicularis
Ctena orbiculata
Lucina pensylvanica
Lucinidae
Mollusca
spellingShingle Lucinidae
Oocytes
Reproduction
Sperm
Bivalvia
Codakia orbicularis
Ctena orbiculata
Lucina pensylvanica
Lucinidae
Mollusca
Bigatti, G.
Peharda, M.
Taylor, J.
Size at first maturity, oocyte envelopes and external morphology of sperm in three species of lucinidae (Mollusca: Bivalvia) from Florida Keys, U.S.A.
topic_facet Lucinidae
Oocytes
Reproduction
Sperm
Bivalvia
Codakia orbicularis
Ctena orbiculata
Lucina pensylvanica
Lucinidae
Mollusca
description Gonads in the tropical lucinid bivalves Ctena orbiculata, Codakia orbicularis, and Lucina pensylvanica are located in the cephalopodial mass above the foot and behind the gills. Age estimates for Lucina pensylvanica suggest that individuals less than one year old are immature, as also is C. orbicularis, and that both males and females mature at two years. For Ctena orbiculata, we have no age data, but we consider that this species may also have early development. In July 2002 when water temperatures were high, mature individuals of all three species were spawning or in resorption, and oocyte envelopes were present. Parasites were found in the digestive diverticula of C. orbiculata and L. pensylvanica. External ultrastructure of the spermatozoon shows differences between the three species. Codakia orbicularis and L. pensylvanica have a long-headed spermatozoa, whereas Ctena orbiculata has a middle-size head. Codakia orbicularis possesses a flagellum with a lateral undulating membrane, absent from the two other species.
format Artículo
Artículo
publishedVersion
author Bigatti, G.
Peharda, M.
Taylor, J.
author_facet Bigatti, G.
Peharda, M.
Taylor, J.
author_sort Bigatti, G.
title Size at first maturity, oocyte envelopes and external morphology of sperm in three species of lucinidae (Mollusca: Bivalvia) from Florida Keys, U.S.A.
title_short Size at first maturity, oocyte envelopes and external morphology of sperm in three species of lucinidae (Mollusca: Bivalvia) from Florida Keys, U.S.A.
title_full Size at first maturity, oocyte envelopes and external morphology of sperm in three species of lucinidae (Mollusca: Bivalvia) from Florida Keys, U.S.A.
title_fullStr Size at first maturity, oocyte envelopes and external morphology of sperm in three species of lucinidae (Mollusca: Bivalvia) from Florida Keys, U.S.A.
title_full_unstemmed Size at first maturity, oocyte envelopes and external morphology of sperm in three species of lucinidae (Mollusca: Bivalvia) from Florida Keys, U.S.A.
title_sort size at first maturity, oocyte envelopes and external morphology of sperm in three species of lucinidae (mollusca: bivalvia) from florida keys, u.s.a.
publishDate 2004
url http://hdl.handle.net/20.500.12110/paper_00762997_v46_n2_p417_Bigatti
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AT pehardam sizeatfirstmaturityoocyteenvelopesandexternalmorphologyofsperminthreespeciesoflucinidaemolluscabivalviafromfloridakeysusa
AT taylorj sizeatfirstmaturityoocyteenvelopesandexternalmorphologyofsperminthreespeciesoflucinidaemolluscabivalviafromfloridakeysusa
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