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Abstract:

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.

Registro:

Documento: Artículo
Título:Brooding in Psolus patagonicus (Echinodermata: Holothuroidea) from Argentina, SW Atlantic Ocean
Autor:Giménez, J.; Penchaszadeh, P.E.
Filiación:Depto. de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. II, C1428EHA Buenos Aires, Argentina
CONICET, Museo Argentino de Ciencias Naturales, Av. Angel Gallardo 470, C1405DJR Buenos Aires, Argentina
Palabras clave: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
Año:2010
Volumen:64
Número:1
Página de inicio:21
Página de fin:26
DOI: http://dx.doi.org/10.1007/s10152-009-0161-z
Título revista:Helgoland Marine Research
Título revista abreviado:Helgol. Mar. Res.
ISSN:1438387X
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_1438387X_v64_n1_p21_Gimenez.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1438387X_v64_n1_p21_Gimenez

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Citas:

---------- APA ----------
Giménez, J. & Penchaszadeh, P.E. (2010) . Brooding in Psolus patagonicus (Echinodermata: Holothuroidea) from Argentina, SW Atlantic Ocean. Helgoland Marine Research, 64(1), 21-26.
http://dx.doi.org/10.1007/s10152-009-0161-z
---------- CHICAGO ----------
Giménez, J., Penchaszadeh, P.E. "Brooding in Psolus patagonicus (Echinodermata: Holothuroidea) from Argentina, SW Atlantic Ocean" . Helgoland Marine Research 64, no. 1 (2010) : 21-26.
http://dx.doi.org/10.1007/s10152-009-0161-z
---------- MLA ----------
Giménez, J., Penchaszadeh, P.E. "Brooding in Psolus patagonicus (Echinodermata: Holothuroidea) from Argentina, SW Atlantic Ocean" . Helgoland Marine Research, vol. 64, no. 1, 2010, pp. 21-26.
http://dx.doi.org/10.1007/s10152-009-0161-z
---------- VANCOUVER ----------
Giménez, J., Penchaszadeh, P.E. Brooding in Psolus patagonicus (Echinodermata: Holothuroidea) from Argentina, SW Atlantic Ocean. Helgol. Mar. Res. 2010;64(1):21-26.
http://dx.doi.org/10.1007/s10152-009-0161-z