Current Search: Garavelli, Lysel (x)
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Title
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Influence of Biological Factors on Connectivity Patterns for Concholepas concholepas (loco) in Chile.
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Creator
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Garavelli, Lysel, Colas, François, Verley, Philippe, Kaplan, David Michael, Yannicelli, Beatriz, Lett, Christophe, Chiang, Tzen-Yuh
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Abstract/Description
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In marine benthic ecosystems, larval connectivity is a major process influencing the maintenance and distribution of invertebrate populations. Larval connectivity is a complex process to study as it is determined by several interacting factors. Here we use an individual-based, biophysical model, to disentangle the effects of such factors, namely larval vertical migration, larval growth, larval mortality, adults fecundity, and habitat availability, for the marine gastropod Concholepas...
Show moreIn marine benthic ecosystems, larval connectivity is a major process influencing the maintenance and distribution of invertebrate populations. Larval connectivity is a complex process to study as it is determined by several interacting factors. Here we use an individual-based, biophysical model, to disentangle the effects of such factors, namely larval vertical migration, larval growth, larval mortality, adults fecundity, and habitat availability, for the marine gastropod Concholepas concholepas (loco) in Chile. Lower transport success and higher dispersal distances are observed including larval vertical migration in the model. We find an overall decrease in larval transport success to settlement areas from northern to southern Chile. This spatial gradient results from the combination of current direction and intensity, seawater temperature, and available habitat. From our simulated connectivity patterns we then identify subpopulations of loco along the Chilean coast, which could serve as a basis for spatial management of this resource in the future.
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Date Issued
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2016-01-11
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PURL
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http://purl.flvc.org/fau/fd/FAUIR000020
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Format
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Citation
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Title
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Eastern Caribbean Circulation and Island Mass Effect on St. Croix, US Virgin Islands: A Mechanism for Relatively Consistent Recruitment Patterns.
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Creator
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Chérubin, Laurent Marcel, Garavelli, Lysel, Han, Guoqi, Harbor Branch Oceanographic Institute
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Abstract/Description
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The northeastern Caribbean Sea is under the seasonal influence of the Trade Winds but also of the Orinoco/Amazon freshwater plume. The latter is responsible for intensification of the Caribbean Current in general and of its eddy activity in the northern part of the Caribbean Sea. More importantly, we show in this study that the front of the freshwater plume drives a northward flow that impinges directly on the island of St. Croix in the United States Virgin Islands. The angle of incidence of...
Show moreThe northeastern Caribbean Sea is under the seasonal influence of the Trade Winds but also of the Orinoco/Amazon freshwater plume. The latter is responsible for intensification of the Caribbean Current in general and of its eddy activity in the northern part of the Caribbean Sea. More importantly, we show in this study that the front of the freshwater plume drives a northward flow that impinges directly on the island of St. Croix in the United States Virgin Islands. The angle of incidence of the incoming flow controls the nature of the wake on both sides and ends of the island, which changes from cyclonic to anticylonic wake flow, with either attached or shed eddies. Using an off-line bio-physical model, we simulated the dispersal and recruitment of an abundant Caribbean coral reef fish, the bluehead wrasse (Thalassoma bifasciatum) in the context of the wake flow variability around St. Croix. Our results revealed the role played by the consistent seasonal forcing of the wake flow on the recruitment patterns around the island at the interannual scale. The interannual variability of the timing of arrival and northward penetration of the plume instead controls the nature of the wake, hence the regional spatial recruitment patterns.
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Date Issued
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2016-03-04
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PURL
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http://purl.flvc.org/fau/fd/FAUIR000011
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Format
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Citation
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Title
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A Genuine Win‐Win: Resolving the “Conserve or Catch” Conflict in Marine Reserve Network Design.
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Creator
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Chollett, Iliana, Garavelli, Lysel, O'Farrell, Shay, Cherubin, Laurent, Matthews, Thomas R., Mumby, Peter J., Box, Stephen J.
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Date Issued
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2017-09-16
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PURL
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http://purl.flvc.org/fau/flvc_fau_islandoraimporter_10.1111_conl.12318_1642016370
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Format
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Document (PDF)
