Short Communication

Catch-and-release angling mortality of south-eastern Australian Pomatomus saltatrix

  • MK Broadhurst
  • PA Butcher
  • BR Cullis

Abstract

Pomatomus saltatrix (Pomatomidae) is important to several recreational fisheries around the world, most of which regulate exploitation via legal size limits and quotas. However, the inherent assumption of minimal impacts to released P. saltatrix has only been tested across limited and mostly planned angling scenarios, with variable results. This study contributes to the available information by assessing the fate of conventionally angled-and-released P. saltatrix off New South Wales, Australia. Eighty-five fish (24–54 cm total length, TL) were caught from surf beaches, rocks and boats and released into cages (with 60 controls), where they were monitored for 10 days. The mortality among angled fish was 8%, all of which occurred within 24 hours. The few deaths were attributed to gill hooking and/or excessive hook damage, and most might be mitigated by cutting the line rather than removing hooks. The results support releasing the angled sizes of eastern Australian P. saltatrix and, along with a review of earlier data, facilitate the prediction of impacts to individuals caught and released among unstudied populations.

Keywords: hook and line, post-release survival, recreational fishing, unaccounted fishing mortality

African Journal of Marine Science 2012, 34(2): 289–295

Author Biographies

MK Broadhurst
NSW Department of Primary Industries, Fisheries Conservation Technology Unit, PO Box 4321, National Marine Science Centre, Coffs Harbour, NSW 2450, Australia
PA Butcher
NSW Department of Primary Industries, Fisheries Conservation Technology Unit, PO Box 4321, National Marine Science Centre, Coffs Harbour, NSW 2450, Australia
BR Cullis
School of Mathematics and Applied Statistics, Faculty of Informatics, University of Wollongong, Wollongong, NSW 2522, Australia; Environmental Informatics, CSIRO, Computer Science and Information Technology Building, North Road, Australian National University, Acton, ACT 2601, Australia
Section
Articles

Journal Identifiers


eISSN: 1814-2338
print ISSN: 1814-232X