Larval dispersion along an axially symmetric mid-ocean ridge
McGillicuddy, Dennis J.
Lavelle, J. William
Thurnherr, Andreas M.
Kosnyrev, V. K.
Mullineaux, Lauren S.
MetadataShow full item record
KeywordEast Pacific Rise; Larval transport; Larval behavior; Modeling; Physical-biological interactions 2
We investigated planktonic larval transport processes along an axially symmetric mid-ocean ridge with characteristics similar to that of the East Pacific Rise (EPR) segment at 9-10°N. The hydrodynamic basis for this study is a primitive equation model implemented in two dimensions (depth and across-ridge), forced at the open boundaries to provide suitably realistic simulation of currents observed on the EPR ridge crest from May to November 1999. Three-dimensional trajectories of numerical larvae are computed assuming homogeneity in currents in the along-ridge direction. Larval dispersal fluctuates significantly in time. Transport distance decreases systematically with height above the bottom where numerical larvae are less subject to strong currents along the flanks of the ridge. The probability that the simulated larvae will be located near the ridge crest at settlement depends strongly on their behavioral characteristics (vertical position in the water column during the larval stage) and the length of their precompetency period.
Author Posting. © The Author(s), 2009. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Deep Sea Research Part I: Oceanographic Research Papers 57 (2010): 880-892, doi:10.1016/j.dsr.2010.04.003.
Showing items related by title, author, creator and subject.
Chan, Kit Yu Karen; Jiang, Houshuo; Padilla, Dianna K. (Public Library of Science, 2013-12-18)Many marine invertebrates have planktonic larvae with cilia used for both propulsion and capturing of food particles. Hence, changes in ciliary activity have implications for larval nutrition and ability to navigate the ...
Elevated pCO2 exposure during fertilization of the bay scallop Argopecten irradians reduces larval survival but not subsequent shell size White, Meredith M.; Mullineaux, Lauren S.; McCorkle, Daniel C.; Cohen, Anne L. (Inter-Research, 2014-02-17)Ocean acidification, characterized by elevated partial pressure of CO2 (pCO2), generally has negative effects on early life stages of invertebrates. We tested the idea that fertilization is a critical CO2 exposure stage ...
Zimmer, Cheryl Ann; Starczak, Victoria R.; Zimmer, Richard K. (Association for the Sciences of Limnology and Oceanography, 2012-07)Larval supply, settlement (24 h), and recruitment were measured simultaneously with flow and flocculated particulates (flocs) in a muddy, coastal embayment. Fortuitous observations indicated that flocs drifting above the ...