The Once and Future Ping: Challenges for the Use of Acoustic Deterrents in Fisheries

The expansion of the driftnet and gillnet fishing industries has resulted in a high level of bycatch of marine mammals, as well as other species. Acoustic deterrents have been developed as a potential technique to scare away seals from fishing nets. However effective these deterrents are initially,...

Full description

Saved in:
Bibliographic Details
Published in:Marine Technology Society journal 1999, Vol.33 (2), p.90-93
Main Author: Kraus, Scott O.
Format: Article
Language:English
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The expansion of the driftnet and gillnet fishing industries has resulted in a high level of bycatch of marine mammals, as well as other species. Acoustic deterrents have been developed as a potential technique to scare away seals from fishing nets. However effective these deterrents are initially, however, their effectiveness declines over time, and ultimately become associated with the presence of edible fish. Further research on acoustic deterrents has focused on increasing amplitude to increase effectiveness. The use of acoustic devices in the gillnet fishing industry of New Hampshire was undertaken to protect the harbor porpoise population. Acoustic pingers have been established as a useful tool in this fishery.
ISSN:0025-3324
1948-1209
DOI:10.4031/MTSJ.33.2.15