Current address: Zoology Department, University of Otago, P.O. Box 56, Dunedin, New Zealand.
MODIFYING GILLNETS TO REDUCE ENTANGLEMENT OF CETACEANS
Article first published online: 26 AUG 2006
Marine Mammal Science
Volume 7, Issue 3, pages 274–282, July 1991
How to Cite
Dawson, S. M. (1991), MODIFYING GILLNETS TO REDUCE ENTANGLEMENT OF CETACEANS. Marine Mammal Science, 7: 274–282. doi: 10.1111/j.1748-7692.1991.tb00102.x
- Issue published online: 26 AUG 2006
- Article first published online: 26 AUG 2006
- Received: April 16, 1990 Accepted: December 13, 1990
To reduce the number of cetaceans caught incidentally in gillnets, two forms of acoustic modifications have previously been proposed. These modifications seek to make gillnets more obvious to cetaceans so they can avoid them, and include making gillnets more reflective to cetacean sonar and placing active sound emitters in the nets. I discuss the relationship between sonar and net entanglement, and address the assumptions and logic of net modification strategies. I argue that neither strategy is likely to be effective, and that reductions in the number of cetaceans killed in gillnets are best achieved through the closure of specific areas to gillnetting.