, Volume 128, Issue 3, pp 359-362

A method for deployment of externally attached sonic fish tags from a manned submersible and their effects on coelacanths

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Abstract

A method for attaching acoustic transmitters externally to deep-water fishes in situ is described. Tags, each comprising a transmitter connected to a dart, were fired at fish from a pneumatic gun held by the manipulator arm of a submersible. The method was applied successfully for tagging coelacanths and may have application for use with other species of fishes living at depths to about 1000 m. The usefulness of direct observation for monitoring the effects of tags on fish is evaluated in relation to the effects of the tagging method on coelacanths.

Received: 3 January 1997 / Accepted: 25 January 1997