Work

Reproductive pattern of Southern geoduck,Panopea abbreviata, at El Sótano (San Matías Gulf, Patagonia, Argentina)

Year: 2012

Type: article

Abstract: The reproductive cycle of the southern geoduck (Panopea abbreviata) in a northern Patagonian population was studied throughout a 24-month period (April 2006–April 2008) using standard histological techniques and quantitative indicators (oocyte diameter distribution, oocytes per ocular field and relative oocyte area). P. abbreviata exhibits a reproductive pattern characterized, in both sexes, by a continuous proliferation and spawning throughout the year. This is similar to that described in southern geoduck populations and is unique to this genus. Quantitative indicators allowed us to elucidate a slight seasonality in the reproductive cycle: a more pronounced spawning during warm months and gamete accumulation during could months. This article describes the first record of hermaphroditic individuals (n = 4) for P. abbreviata.

Source: Marine Biology Research

DOI: 10.1080/17451000.2011.605145

Authors: Paula C. Zaidman, Marina A. Kroeck, Erica M. Oehrens Kissner, Enrique M. Morsan

Institutions: Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Biología Marina y Pesquera Almirante Storni, Universidad Nacional del Comahue, Agencia Nacional de Promoción de la Investigación, el Desarrollo Tecnológico y la Innovación

Language: English

Topic: Marine Bivalve and Aquaculture Studies

Subfield: Global and Planetary Change

Field: Environmental Science

Domain: Physical Sciences

SDG: Life below water

Open Access status: green

Funder: United Nations Development Programme