DOES MYA TRUNCATA REPRODUCE AT ITS SOUTHERN DISTRIBUTION LIMIT? PRELIMINARY INFORMATION

TERESA AMARO; GERARD DUINEVELD; PAUL TYLER

doi:10.2983/0730-8000(2005)24[25:DMTRAI]2.0.CO;2

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TERESA AMARO,^1,* GERARD DUINEVELD,¹ PAUL TYLER²

¹1 Royal Netherlands Institute for Sea Research P.O. Box 59 1790 AB Den Burg, The Netherlands
²2 School of Ocean and Earth Science, University of Southampton SOC, Southampton SO14 3ZH, United Kin

^** Corresponding author. E-mail: amaro@nioz.nl; Fax: +31-222-319674

Abstract

Previous investigations of the bivalve Mya truncata in the Southern North Sea revealed the absence of the 1987 to 2001 y classes. Because the species' southern-most distribution limit is the southern North Sea, at the Frisian Front, we examined if M. truncata was reproductively active in this region. Histologic sections of reproductive tissues from individuals collected between June and April 2002 revealed synchronous gametogenesis with low numbers of vitellogenic oocytes. The low number of ripe oocytes may be one explanation for repeated recruitment failures of this species at this site.

Citation Download Citation

TERESA AMARO, GERARD DUINEVELD, and PAUL TYLER "DOES MYA TRUNCATA REPRODUCE AT ITS SOUTHERN DISTRIBUTION LIMIT? PRELIMINARY INFORMATION," Journal of Shellfish Research 24(1), 25-28, (1 January 2005). https://doi.org/10.2983/0730-8000(2005)24[25:DMTRAI]2.0.CO;2

Published: 1 January 2005

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