Reproduction of the sea urchin Arbacia dufresnii (Echinoidea: Arbaciidae) from Golfo Nuevo, Argentina

Arbacia dufresnii is a common and abundant sea urchin in Argentinean waters. The gonad index cycle was studied for this species in Golfo Nuevo, Patagonia, from May 2001 to March 2003. Comparative studies of gonad index and gonad histology were performed for the three years of 2001, 2002 and 2003. Th...

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Autores principales: Brogger, Martín I., Martinez, Mariano I., Penchaszadeh, Pablo Enrique
Publicado: 2010
Materias:
Arbacia dufresnii
Patagonia
reproduction
sea urchin
spawning
comparative study
correlation
diameter
echinoderm
gamete
histology
larval development
photoperiod
reproductive cycle
spatiotemporal analysis
Argentina
Chubut
Golfo Nuevo
Arbacia
Arbaciidae
Echinoidea
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253154_v90_n7_p1405_Brogger
http://hdl.handle.net/20.500.12110/paper_00253154_v90_n7_p1405_Brogger
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00253154_v90_n7_p1405_Brogger
record_format dspace
spelling paper:paper_00253154_v90_n7_p1405_Brogger2023-06-08T14:52:53Z Reproduction of the sea urchin Arbacia dufresnii (Echinoidea: Arbaciidae) from Golfo Nuevo, Argentina Brogger, Martín I. Martinez, Mariano I. Penchaszadeh, Pablo Enrique Arbacia dufresnii Patagonia reproduction sea urchin spawning comparative study correlation diameter echinoderm gamete histology larval development photoperiod reproductive cycle spatiotemporal analysis spawning Argentina Chubut Golfo Nuevo Patagonia Arbacia Arbaciidae Echinoidea Arbacia dufresnii is a common and abundant sea urchin in Argentinean waters. The gonad index cycle was studied for this species in Golfo Nuevo, Patagonia, from May 2001 to March 2003. Comparative studies of gonad index and gonad histology were performed for the three years of 2001, 2002 and 2003. The gonad index reflects gonadal stages, and the results showed two spawning peaks for the studied period. The first spawning event occurred during spring and a second major spawning occurred in summer. Proliferation and differentiation of gametes, and the presence of mature gonads were synchronous among males and females. Male and female individuals spawned synchronically. Gonad resorption was observed for males and females. Histological examination data reflected gonad index analysis, providing together a good estimation of the reproductive cycle of A. dufresnii. Statistical analyses showed a positive correlation between gonad index and photoperiod. The mean fresh oocyte diameter observed was 87.1μm (SD=1.3μm) with a jelly coat of 12.7μm (SD=0.9μm), which corresponds to planktotrophic larval development. © 2010 Marine Biological Association of the United Kingdom. Fil:Brogger, M.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Martinez, M.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Penchaszadeh, P.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253154_v90_n7_p1405_Brogger http://hdl.handle.net/20.500.12110/paper_00253154_v90_n7_p1405_Brogger
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Arbacia dufresnii
Patagonia
reproduction
sea urchin
spawning
comparative study
correlation
diameter
echinoderm
gamete
histology
larval development
photoperiod
reproductive cycle
spatiotemporal analysis
spawning
Argentina
Chubut
Golfo Nuevo
Patagonia
Arbacia
Arbaciidae
Echinoidea
spellingShingle Arbacia dufresnii
Patagonia
reproduction
sea urchin
spawning
comparative study
correlation
diameter
echinoderm
gamete
histology
larval development
photoperiod
reproductive cycle
spatiotemporal analysis
spawning
Argentina
Chubut
Golfo Nuevo
Patagonia
Arbacia
Arbaciidae
Echinoidea
Brogger, Martín I.
Martinez, Mariano I.
Penchaszadeh, Pablo Enrique
Reproduction of the sea urchin Arbacia dufresnii (Echinoidea: Arbaciidae) from Golfo Nuevo, Argentina
topic_facet Arbacia dufresnii
Patagonia
reproduction
sea urchin
spawning
comparative study
correlation
diameter
echinoderm
gamete
histology
larval development
photoperiod
reproductive cycle
spatiotemporal analysis
spawning
Argentina
Chubut
Golfo Nuevo
Patagonia
Arbacia
Arbaciidae
Echinoidea
description Arbacia dufresnii is a common and abundant sea urchin in Argentinean waters. The gonad index cycle was studied for this species in Golfo Nuevo, Patagonia, from May 2001 to March 2003. Comparative studies of gonad index and gonad histology were performed for the three years of 2001, 2002 and 2003. The gonad index reflects gonadal stages, and the results showed two spawning peaks for the studied period. The first spawning event occurred during spring and a second major spawning occurred in summer. Proliferation and differentiation of gametes, and the presence of mature gonads were synchronous among males and females. Male and female individuals spawned synchronically. Gonad resorption was observed for males and females. Histological examination data reflected gonad index analysis, providing together a good estimation of the reproductive cycle of A. dufresnii. Statistical analyses showed a positive correlation between gonad index and photoperiod. The mean fresh oocyte diameter observed was 87.1μm (SD=1.3μm) with a jelly coat of 12.7μm (SD=0.9μm), which corresponds to planktotrophic larval development. © 2010 Marine Biological Association of the United Kingdom.
author Brogger, Martín I.
Martinez, Mariano I.
Penchaszadeh, Pablo Enrique
author_facet Brogger, Martín I.
Martinez, Mariano I.
Penchaszadeh, Pablo Enrique
author_sort Brogger, Martín I.
title Reproduction of the sea urchin Arbacia dufresnii (Echinoidea: Arbaciidae) from Golfo Nuevo, Argentina
title_short Reproduction of the sea urchin Arbacia dufresnii (Echinoidea: Arbaciidae) from Golfo Nuevo, Argentina
title_full Reproduction of the sea urchin Arbacia dufresnii (Echinoidea: Arbaciidae) from Golfo Nuevo, Argentina
title_fullStr Reproduction of the sea urchin Arbacia dufresnii (Echinoidea: Arbaciidae) from Golfo Nuevo, Argentina
title_full_unstemmed Reproduction of the sea urchin Arbacia dufresnii (Echinoidea: Arbaciidae) from Golfo Nuevo, Argentina
title_sort reproduction of the sea urchin arbacia dufresnii (echinoidea: arbaciidae) from golfo nuevo, argentina
publishDate 2010
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253154_v90_n7_p1405_Brogger
http://hdl.handle.net/20.500.12110/paper_00253154_v90_n7_p1405_Brogger
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AT martinezmarianoi reproductionoftheseaurchinarbaciadufresniiechinoideaarbaciidaefromgolfonuevoargentina
AT penchaszadehpabloenrique reproductionoftheseaurchinarbaciadufresniiechinoideaarbaciidaefromgolfonuevoargentina
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