Fishing for oil and meat drives irreversible defaunation of deepwater sharks and rays

Publication Name

Science

Abstract

The deep ocean is the last natural biodiversity refuge from the reach of human activities. Deepwater sharks and rays are among the most sensitive marine vertebrates to overexploitation. One-third of threatened deepwater sharks are targeted, and half the species targeted for the international liver-oil trade are threatened with extinction. Steep population declines cannot be easily reversed owing to long generation lengths, low recovery potentials, and the near absence of management. Depth and spatial limits to fishing activity could improve conservation when implemented alongside catch regulations, bycatch mitigation, and international trade regulation. Deepwater sharks and rays require immediate trade and fishing regulations to prevent irreversible defaunation and promote recovery of this threatened megafauna group.

Open Access Status

This publication may be available as open access

Volume

383

Issue

6687

First Page

1135

Last Page

1141

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Link to publisher version (DOI)

http://dx.doi.org/10.1126/science.ade9121