A better understanding of the distribution and migration patterns of marlin and the environmental and biological parameters that determine it, together with an evaluation of the nature and extent of the interaction between the recreational and commercial fleets within Area E, is one of the Eastern Tuna MAC’s top research priorities. This pilot study will provide fine-scale movement data in the recreational fishing areas, and evaluate PSTATs in providing the detailed information on movement dynamics of black marlin critical to any evaluation of the interaction between the two fisheries. Only when this information is available, will it be possible to incorporate movement dynamics, oceanographic models of circulation in the Coral Sea, and the operational characteristics of the charter and longline fleets into a model to evaluate the availability of black marlin to the charter fleet under different levels of longline effort within Area E.
Project number:
1997-113
Project Status:
Completed
Budget expenditure:
$127,158.00
Principal Investigator:
Tim Davis
Organisation:
CSIRO Oceans and Atmosphere Hobart
Project start/end date:
29 Dec 1997
-
23 Mar 2000
Contact:
FRDC
1. Evaluate the local interaction between recreational and commercial fisheries in Area E by using pop-up radio tags to determine short-term movements and residence times of black marlin in the recreational/charter fishery.
2. Evaluate pop-up satellite transmitting archival tags as a cost effective method for obtaining information on large scale movements, exchange rates and residence times of black marlin for assessing fishery interactions on the scale of the NW Coral Sea.
