Document Detail

Collapse and conservation of shark populations in the Northwest Atlantic.
MedLine Citation:
PMID:  12532016     Owner:  NLM     Status:  MEDLINE    
Overexploitation threatens the future of many large vertebrates. In the ocean, tunas and sea turtles are current conservation concerns because of this intense pressure. The status of most shark species, in contrast, remains uncertain. Using the largest data set in the Northwest Atlantic, we show rapid large declines in large coastal and oceanic shark populations. Scalloped hammerhead, white, and thresher sharks are each estimated to have declined by over 75% in the past 15 years. Closed-area models highlight priority areas for shark conservation, and the need to consider effort reallocation and site selection if marine reserves are to benefit multiple threatened species.
Julia K Baum; Ransom A Myers; Daniel G Kehler; Boris Worm; Shelton J Harley; Penny A Doherty
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Science (New York, N.Y.)     Volume:  299     ISSN:  1095-9203     ISO Abbreviation:  Science     Publication Date:  2003 Jan 
Date Detail:
Created Date:  2003-01-17     Completed Date:  2003-02-05     Revised Date:  2007-03-19    
Medline Journal Info:
Nlm Unique ID:  0404511     Medline TA:  Science     Country:  United States    
Other Details:
Languages:  eng     Pagination:  389-92     Citation Subset:  IM    
Department of Biology, Dalhousie University, Halifax, NS, Canada B3H 4J1.
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MeSH Terms
Atlantic Ocean
Conservation of Natural Resources*
Likelihood Functions
Models, Statistical
Population Density

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