Short-term survival of discarded pearl perch (Glaucosoma scapulare Ramsay, 1881) caught by hook-and-line in Queensland, Australia

Published source details Campbell M.J., McLennan M.F. & Sumpton W.D. (2014) Short-term survival of discarded pearl perch (Glaucosoma scapulare Ramsay, 1881) caught by hook-and-line in Queensland, Australia. Fisheries Research, 151, 206-212.
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This study is summarised as evidence for the following.

	Action	Category
	Release protected or species of concern alive after capture Action Link

Release protected or species of concern alive after capture

A replicated study (year not stated) of two areas of rocky reef and gravel in the Coral Sea off Australia (Campbell et al. 2014) found that the majority of pearl perch Glaucosoma scapulare released alive after capture by hook and line survived for up to three days, and survival was influenced by hook location and signs of barotrauma (effects of capture at depth). The overall short-term (3 day) post-release survival rate of perch was 92%. In addition, survival rates were higher for perch hooked in the lip or mouth (93–100%) than those hooked in the throat (36%), and for those with no obvious signs of barotrauma (93%) compared to fish observed with swollen or everted stomachs (63–69%). Data were collected for 183 pearl perch (19–61 cm total length) caught during four field trips (dates/year of sampling unspecified) using conventional baited rod and reel, in one shallow (<80 m) and one deep (>80 m) area off the coast of Queensland, 50 nm apart. Hook location was recorded before the captured perch were tagged and placed either into onboard holding tanks or vertical enclosures anchored to the seabed. Post-release survival was assessed after three days.

(Summarised by: Natasha Taylor)