Incidental capture and mortality of sea turtles in Australia's Northern Prawn Fishery [Northern Territory; Queensland]
1990
Poiner, I.R. | Harris, A.N.M. (Commonwealth Scientific and Industrial Research Organization, Cleveland (Australia). Div. of Fisheries) | Buckworth, R.C. (Northern Territory Dept. of Primary Industries and Fisheries, Darwin (Australia). Fisheries Research Branch)
Species composition, catch and mortality rates of sea turtles captured in the tiger prawn segment of Australia's northern prawn fishery were estimated from 6 prawn research surveys and 3 commercial catch monitoring programmes. Four species of turtles were captured. The size of turtle catches and rate of mortality varied with duration of the trawl, the former also with water depth. On the basis of annual fishing effort, an average of 5730 turtles have been caught per year, of which an average of 344 drowned. The impact of trawl-induced drownings on the turtle populations is probably not of such proportions as to create immediate concern.
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