Brooding in Psolus patagonicus (Echinodermata: Holothuroidea) from Argentina, SW Atlantic Ocean

The mode, season, and time of brooding, egg diameter, egg number per brood, and the characteristics of newly released juveniles of Psolus patagonicus were investigated off Mar del Plata, Buenos Aires, Argentina, between October 1999 and February 2001. Individuals were attached to the Patagonian scal...

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Autores principales: Giménez, Juliana, Penchaszadeh, Pablo Enrique
Publicado: 2010
Materias:
Argentine continental shelf
Brooding
Psolidae
Psolus patagonicus
brood size
continental shelf
echinoderm
egg size
embryo
juvenile
spawning
Argentina
Buenos Aires [Argentina]
Mar del Plata
Echinodermata
Holothuroidea
Psolus
Zygochlamys patagonica
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1438387X_v64_n1_p21_Gimenez
http://hdl.handle.net/20.500.12110/paper_1438387X_v64_n1_p21_Gimenez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_1438387X_v64_n1_p21_Gimenez
record_format dspace
spelling paper:paper_1438387X_v64_n1_p21_Gimenez2023-06-08T16:15:51Z Brooding in Psolus patagonicus (Echinodermata: Holothuroidea) from Argentina, SW Atlantic Ocean Giménez, Juliana Penchaszadeh, Pablo Enrique Argentine continental shelf Brooding Psolidae Psolus patagonicus brood size continental shelf echinoderm egg size embryo juvenile spawning Argentina Buenos Aires [Argentina] Mar del Plata Echinodermata Holothuroidea Psolidae Psolus Zygochlamys patagonica The mode, season, and time of brooding, egg diameter, egg number per brood, and the characteristics of newly released juveniles of Psolus patagonicus were investigated off Mar del Plata, Buenos Aires, Argentina, between October 1999 and February 2001. Individuals were attached to the Patagonian scallop, Zygochlamys patagonica. Spawning occurs between February and March. The mean egg diameter, 887 ± 26 μm, is the highest reported for the family Psolidae. Eggs are brooded under the mother's sole until they develop into crawling juveniles within 7 months. The largest embryos reached a length of 1,941 ± 228 μm in September. During the brooding period (February-September) the number of brooded embryos decreased while their size increased. Our study confirms brooding behaviour in female P. patagonicus. © Springer-Verlag and AWI 2009. Fil:Giménez, J. 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_1438387X_v64_n1_p21_Gimenez http://hdl.handle.net/20.500.12110/paper_1438387X_v64_n1_p21_Gimenez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentine continental shelf
Brooding
Psolidae
Psolus patagonicus
brood size
continental shelf
echinoderm
egg size
embryo
juvenile
spawning
Argentina
Buenos Aires [Argentina]
Mar del Plata
Echinodermata
Holothuroidea
Psolidae
Psolus
Zygochlamys patagonica
spellingShingle Argentine continental shelf
Brooding
Psolidae
Psolus patagonicus
brood size
continental shelf
echinoderm
egg size
embryo
juvenile
spawning
Argentina
Buenos Aires [Argentina]
Mar del Plata
Echinodermata
Holothuroidea
Psolidae
Psolus
Zygochlamys patagonica
Giménez, Juliana
Penchaszadeh, Pablo Enrique
Brooding in Psolus patagonicus (Echinodermata: Holothuroidea) from Argentina, SW Atlantic Ocean
topic_facet Argentine continental shelf
Brooding
Psolidae
Psolus patagonicus
brood size
continental shelf
echinoderm
egg size
embryo
juvenile
spawning
Argentina
Buenos Aires [Argentina]
Mar del Plata
Echinodermata
Holothuroidea
Psolidae
Psolus
Zygochlamys patagonica
description The mode, season, and time of brooding, egg diameter, egg number per brood, and the characteristics of newly released juveniles of Psolus patagonicus were investigated off Mar del Plata, Buenos Aires, Argentina, between October 1999 and February 2001. Individuals were attached to the Patagonian scallop, Zygochlamys patagonica. Spawning occurs between February and March. The mean egg diameter, 887 ± 26 μm, is the highest reported for the family Psolidae. Eggs are brooded under the mother's sole until they develop into crawling juveniles within 7 months. The largest embryos reached a length of 1,941 ± 228 μm in September. During the brooding period (February-September) the number of brooded embryos decreased while their size increased. Our study confirms brooding behaviour in female P. patagonicus. © Springer-Verlag and AWI 2009.
author Giménez, Juliana
Penchaszadeh, Pablo Enrique
author_facet Giménez, Juliana
Penchaszadeh, Pablo Enrique
author_sort Giménez, Juliana
title Brooding in Psolus patagonicus (Echinodermata: Holothuroidea) from Argentina, SW Atlantic Ocean
title_short Brooding in Psolus patagonicus (Echinodermata: Holothuroidea) from Argentina, SW Atlantic Ocean
title_full Brooding in Psolus patagonicus (Echinodermata: Holothuroidea) from Argentina, SW Atlantic Ocean
title_fullStr Brooding in Psolus patagonicus (Echinodermata: Holothuroidea) from Argentina, SW Atlantic Ocean
title_full_unstemmed Brooding in Psolus patagonicus (Echinodermata: Holothuroidea) from Argentina, SW Atlantic Ocean
title_sort brooding in psolus patagonicus (echinodermata: holothuroidea) from argentina, sw atlantic ocean
publishDate 2010
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1438387X_v64_n1_p21_Gimenez
http://hdl.handle.net/20.500.12110/paper_1438387X_v64_n1_p21_Gimenez
work_keys_str_mv AT gimenezjuliana broodinginpsoluspatagonicusechinodermataholothuroideafromargentinaswatlanticocean
AT penchaszadehpabloenrique broodinginpsoluspatagonicusechinodermataholothuroideafromargentinaswatlanticocean
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