The importance of habitat and life history to extinction risk in sharks, skates, rays and chimaeras

We compared life-history traits and extinction risk of chondrichthyans (sharks, rays and chimaeras), a group of high conservation concern, from the three major marine habitats (continental shelves, open ocean and deep sea), controlling for phylogenetic correlation. Deep-water chondrichthyans had a h...

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Veröffentlicht in:	Proceedings of the Royal Society. B, Biological sciences Biological sciences, 2008-01, Vol.275 (1630), p.83-89
Hauptverfasser:	García, Verónica B, Lucifora, Luis O, Myers, Ransom A
Format:	Artikel
Sprache:	eng
Schlagworte:	Age Factors Animals Aquatic habitats Biological taxonomies Body Size Chimaera Chondrichthyes Commercial extinction Conservation Conservation of Natural Resources - methods Deep Sea Ecological life histories Ecosystem Elasmobranch Elasmobranchii - genetics Elasmobranchii - physiology Extinct species Extinction, Biological Longevity Marine Marine fishes Oceans and Seas Phylogenetics Phylogeny Reproduction - physiology Risk Assessment Shark Fisheries Sharks Species extinction Species Specificity
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Zusammenfassung:	We compared life-history traits and extinction risk of chondrichthyans (sharks, rays and chimaeras), a group of high conservation concern, from the three major marine habitats (continental shelves, open ocean and deep sea), controlling for phylogenetic correlation. Deep-water chondrichthyans had a higher age at maturity and longevity, and a lower growth completion rate than shallow-water species. The average fishing mortality needed to drive a deep-water chondrichthyan species to extinction (
ISSN:	0962-8452 1471-2954
DOI:	10.1098/rspb.2007.1295