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Article: Spawning, Fertilization, and Larval Development of Potamocorbula amurensis (Mollusca: Bivalvia) from San Francisco Bay, California [1].
- Article from:
- Pacific Science
- Article date:
- October 1, 2000
- Author:
CopyrightCOPYRIGHT 2000 University of Hawaii Press. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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MARY HELEN NICOLINI [2,3]
DEBORAH L. PENRY [2]
ABSTRACT: In Potamocorbula amurensis time for development to the straight-hinge larval stage is 48 hr at 150[degrees]C. Potamocorbula amurensis settles at a shell length of approximately 135 [micro]m 17 to 19 days after fertilization. Our observations of timing of larval development in P. amurensis support the hypothesis of earlier workers that its route of initial introduction to San Francisco Bay was as veliger larvae transported in ballast water by trans-Pacific cargo ships. The length of the larval period of P. amurensis relative to water mass residence times in San Francisco Bay suggests that it is ...