Recently Settled Stages and Larval Developmental Mode of the Bivalves Zygochlamys patagonica and Hiatella meridionalis in the Argentine Sea

Laura Schejter; Claudia Bremec; Dieter Waloszek; Mariana Escolar

doi:10.2983/035.029.0127

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Laura Schejter,^1,2,* Claudia Bremec,^1,2 Dieter Waloszek,³ Mariana Escolar^1,2

¹1CONICET Av. Rivadavia 1917, (C1033AAJ) Buenos Aires, Argentina
²2INIDEP, Paseo Victoria Ocampo N°1, (7600) Mar del Plata, Argentina
³3Biosystematic Documentation, University of Ulm, Helmholtzstraβe 20, 89081 Ulm, Germany

^*Corresponding author: E-mail: schejter@inidep.edu.ar

Abstract

In the current study we provide information to aid in the identification of bivalve larvae in plankton samples based on the descriptions of recently settled spat of Zygochlamys palagonica and Hiatella meridionalis, 2 conspicuous bivalves commonly distributed in the shelf-break frontal system of the Argentine Sea. The first species is of particular interest given that it has been commercially exploited since 1996, and the phase between gamete release and larval settlement was unknown. We provide empirical evidence of a planktotrophic development for the larvae of both species.

Citation Download Citation

Laura Schejter, Claudia Bremec, Dieter Waloszek, and Mariana Escolar "Recently Settled Stages and Larval Developmental Mode of the Bivalves Zygochlamys patagonica and Hiatella meridionalis in the Argentine Sea," Journal of Shellfish Research 29(1), 63-67, (1 April 2010). https://doi.org/10.2983/035.029.0127

Published: 1 April 2010

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