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Abstract:

The reproductive cycle of the entocommensal nemertean Malacobdella arrokeana inhabiting Panopea abbreviata, from San José Gulf, Patagonia, Argentina, and the nemertean-host relationship were investigated. The mature nemertean population showed a sex ratio of 1:0.64, with females predominating. The number of individuals of M. arrokeana per host varied from 1-60 individuals (mean ± SD = 3.7 ± 9.4 mm). Different stages of gonadic development were observed in individual nemerteans. Spawning peaks occurred during late summer and early spring. Sexually mature individuals of both sexes were present year round, possibly indicative of a continuous breeding period. Our results suggest that M. arrokeana has no cannibalistic habits and confirm its entocommensal symbiosis with P. abbreviata. © 2006, The American Microscopical Society, Inc.

Registro:

Documento: Artículo
Título:The reproductive cycle of the entocommensal nemertean Malacobdella arrokeana and its symbiosis with the geoduck Panopea abbreviata
Autor:Valeria Teso, S.; Bigatti, G.; Bazterrica, M.C.; Ciocco, N.F.; Penchaszadeh, P.E.
Filiación:Facultad de Ciencias Exactas y Naturales, UBA and Museo Argentino de Ciencias Naturales, CONICET, (1045) Buenos Aires, Argentina
Centro Nacional Patagónico, CONICET, (9120) Puerto Madryn, Argentina
Idioma: Inglés
Palabras clave:Bdellonemertea; Gonadic development; Southwestern Atlantic; Spawning; Bdellonemertea; Malacobdella; Nemertea; Panopea abbreviata
Año:2006
Volumen:125
Número:4
Página de inicio:314
Página de fin:324
DOI: http://dx.doi.org/10.1111/j.1744-7410.2006.00063.x
Título revista:Invertebrate Biology
Título revista abreviado:Invertebr. Biol.
ISSN:10778306
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10778306_v125_n4_p314_ValeriaTeso

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Citas:

---------- APA ----------
Valeria Teso, S., Bigatti, G., Bazterrica, M.C., Ciocco, N.F. & Penchaszadeh, P.E. (2006) . The reproductive cycle of the entocommensal nemertean Malacobdella arrokeana and its symbiosis with the geoduck Panopea abbreviata. Invertebrate Biology, 125(4), 314-324.
http://dx.doi.org/10.1111/j.1744-7410.2006.00063.x
---------- CHICAGO ----------
Valeria Teso, S., Bigatti, G., Bazterrica, M.C., Ciocco, N.F., Penchaszadeh, P.E. "The reproductive cycle of the entocommensal nemertean Malacobdella arrokeana and its symbiosis with the geoduck Panopea abbreviata" . Invertebrate Biology 125, no. 4 (2006) : 314-324.
http://dx.doi.org/10.1111/j.1744-7410.2006.00063.x
---------- MLA ----------
Valeria Teso, S., Bigatti, G., Bazterrica, M.C., Ciocco, N.F., Penchaszadeh, P.E. "The reproductive cycle of the entocommensal nemertean Malacobdella arrokeana and its symbiosis with the geoduck Panopea abbreviata" . Invertebrate Biology, vol. 125, no. 4, 2006, pp. 314-324.
http://dx.doi.org/10.1111/j.1744-7410.2006.00063.x
---------- VANCOUVER ----------
Valeria Teso, S., Bigatti, G., Bazterrica, M.C., Ciocco, N.F., Penchaszadeh, P.E. The reproductive cycle of the entocommensal nemertean Malacobdella arrokeana and its symbiosis with the geoduck Panopea abbreviata. Invertebr. Biol. 2006;125(4):314-324.
http://dx.doi.org/10.1111/j.1744-7410.2006.00063.x