Pelagic gillnet modification trials in northern Australian seas

Authors: 

Hembree, D. and Harwood, M.B.

Year: 

1987

Journal/Publisher Name: 

Report of the International Whaling Commission

Volume (Issue #): 

37

Page #s: 

369-373
Summary: 

Passive acoustic deterrents in the form of chains of metallic beads and air-filled plastic tubing attached to gillnets in Australia did not reduce bycatch of two small cetaceans: the Atlantic bottlenose dolphin (Tursiops truncatus) and Spinner dolphin (Stenella longiristris). A sub-surface set gillnet (set 4.5 m below the surface) in Australia reduced cetacean catch rate [Atlantic bottlenose dolphin (Tursiops truncatus) and Spinner dolphin (Stenella longiristris)] when compared to a standard surface set net. The sub-surface net decreased total fish (teleost species: tuna, mackerel, billfish) and shark catch approximately 25%.