Home > Biology Projects
Describing the Vertical Habitat of Bigeye and Albacore Tunas and Post Release Survival for Marlins in the Central Pacific Longline Fisheries with Pop-up Archival Transmitting Tags
Bigeye tuna is the target species in the Hawaii tuna longline fishery and albacore is the target species in the American Samoa longline fishery. For both these species there is a need to gain information on their vertical habitat and migration, data that can be obtained through the use of PAT tags. For marlins, the issue of releasing these fish caught in longline gear is a growing management issue. Information on the survival of marlin released after capture needs to be collected to address the potential effectiveness of management requiring release of marlins. PAT tags are ideally suited to address capture and release mortality. PAT tags have a depth release mechanism that will release at 1500 m if the fish dies and sinks and the subsequent time/depth profile clearly identifies this as a mortality rather than a tag shedding event.
The objectives by priority are to use PAT tags to:
Year 1 funding for this 3-year project to be available early 2003.
National Marine Fisheries Service
2570 Dole Street, Room 216
Honolulu, Hawaii 96822 USA
Phone (808) 983-5390
FAX (808) 983-2902
This page updated September 29, 2010