| Predicted impact of the invasive lionfish Pterois volitans on the food web of a Caribbean coral reef. | |
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MedLine Citation:
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PMID: 21840517 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The invasion of lionfish in the Caribbean is causing grave concern because of its deleterious impacts on coral reef food-webs. We have used an Ecopath-with-Ecosim model to predict the impacts of lionfish invasion on a coral reef community based on pre-invasion fish community data. Forty-six groups were defined, and an initial Ecopath model was balanced with a near-zero biomass of lionfish. In Ecosim, the near-zero biomass was eradicated by applying a very high fishing pressure in the first year of simulation. We subsequently (re-)introduced lionfish with a very low biomass, and allowed them to increase to very high abundance. With a near-zero lionfish biomass, the great majority of mesocarnivorous/omnivorous coral reef fish were predicted to be dominant while sharks were predicted to be the apex predators. Different management scenarios were established in the ecosystem to explore the eradication and resilience of lionfish. The management scenarios showed that if all adult lionfish were exploitable it will in theory be possible to fish the lionfish to a very low level, but the fishing pressure will have to be maintained, or the lionfish will recover. If the largest individuals are unexploitable it will be much more difficult to control the lionfish population. |
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Authors:
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Jesús Ernesto Arias-González; Carlos González-Gándara; José Luis Cabrera; Villy Christensen |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-8-12 |
Journal Detail:
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Title: Environmental research Volume: - ISSN: 1096-0953 ISO Abbreviation: - Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-8-15 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0147621 Medline TA: Environ Res Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Elsevier Inc. All rights reserved. |
Affiliation:
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Laboratorio de Ecología de Ecosistemas de Arrecifes Coralinos, Departamento de Recursos del Mar, Centro de Investigación y de Estudios Avanzados IPN-Unidad Mérida. Ant. Carr. a Progreso Km. 6, A.P. 73 Cordemex, 97310 Mérida, Yucatán, México. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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