AB 15:111-119 (2012)  -  DOI: https://doi.org/10.3354/ab00407

Reproductive cycle in an imposex-affected population of Olivancillaria deshayesiana (Gastropoda: Olividae) from Mar del Plata, Argentina

Valeria Teso1,*, Florencia Arrighetti2, Pablo E. Penchaszadeh

1CONICET—Museo Argentino de Ciencias Naturales, Av. Angel Gallardo 470, Lab. 57, C1405DJR Buenos Aires, Argentina
2CONICET—Laboratorio de Biología de Invertebrados Marinos, DBBE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina

ABSTRACT: Olivancillaria deshayesiana (Gastropoda: Olividae) is distributed from Ilha Grande (Rio de Janeiro, Brazil) to Necochea (Buenos Aires, Argentina). Apart from some descriptions of the embryonic development and the egg capsules, little is known about the reproduction and ecology of this species. In this 2 yr study (October 2005 to September 2007), the reproductive cycle of O. deshayesiana was examined in a population highly affected by imposex, from the Mar del Plata coast, Argentina. Males exhibited seasonal reproductive activity, with a major spawning period from September to January (spring to early summer) for the 2 yr, which coincided with an increase in seawater temperature and photoperiod. In contrast, females were mature and capable of spawning year round, with a major spawning period from September to January (spring to early summer), simultaneous with the major spawning period of males.


KEY WORDS: Imposex · Mar del Plata · Olivancillaria · Olividae · Reproduction


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Cite this article as: Teso V, Arrighetti F, Penchaszadeh PE (2012) Reproductive cycle in an imposex-affected population of Olivancillaria deshayesiana (Gastropoda: Olividae) from Mar del Plata, Argentina. Aquat Biol 15:111-119. https://doi.org/10.3354/ab00407

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