Release method and anatomical hook location: effects on short-term mortality of angler-caught Acanthopagrus australis and Argyrosomus japonicus

Butcher, Paul A.; Broadhurst, Matt K.; Reynolds, Darren Paul; Reid, Dennis; Gray, Charles A.

doi:10.3354/dao074017

Cited by 40 publications

(67 citation statements)

References 33 publications

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“…Survival was lower in both throat-hooked and stomach-hooked fish, with no stomach-hooked fish surviving capture. Hook location has been found to be a significant factor affecting the post-release survival of several species in Australia including G. hebraicum (St. John and Syers, 2005), mulloway Argyrosomus japonicus (Butcher et al, 2007) and yellowfin bream Acanthopagrus australis (Broadhurst et al, 2005b). As such, in order to maximise the post-release survival of line-caught G. scapulare, it is prudent to highlight methods that reduce the incidence of deep-hooking during capture.…”

Section: Discussionmentioning

confidence: 99%

“…The removal of hooks has been shown to significantly affect the post-release survival of line-caught fish (Butcher et al, 2007;Wilde and Sawynok, 2009). The removal of hooks from deeplyhooked fish intended for release provides a confounding interaction of three important factors affecting post-release survival -hooking location, trauma associated with hook removal and air exposure or handling time.…”

Section: Discussionmentioning

confidence: 99%

“…The survival of these regulatory discards is unquantified but current management measures would only be effective in conserving stocks if released fish survive capture and subsequent release (Broadhurst et al, 2005a;Butcher et al, 2007Butcher et al, , 2008. The survival of discarded individuals represents a large source of uncertainty in estimates of total fishing mortality (Davis, 2002).…”

Section: Introductionmentioning

confidence: 99%

“…These factors have been the subject of numerous studies in recent years and include hook type or size (Aalbers et al, 2004;Butcher et al, 2008;Cooke et al, 2005;Graves and Horodysky, 2008;Grixti et al, 2007;Mapleston et al, 2008), hooking location (Alós et al, 2008;Butcher et al, 2007;McGrath et al, 2009;Pope and Wilde, 2004), landing apparatus (Barthel et al, 2003;Danylchuk et al, 2008;De Lestang et al, 2008) and duration of exposure to air (Gingerich et al, 2007;Reynolds et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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

Campbell¹,

McLennan²,

Sumpton³

2014

Fisheries Research

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a b s t r a c tPost-release survival of line-caught pearl perch (Glaucosoma scapulare) was assessed via field experiments where fish were angled using methods similar to those used by commercial, recreational and charter fishers. One hundred and eighty-three individuals were caught during four experiments, of which >91% survived up to three days post-capture. Hook location was found to be the best predictor of survival, with the survival of throat-or stomach-hooked pearl perch significantly (P < 0.05) lower than those hooked in either the mouth or lip. Post-release survival was similar for both legal (≥35 cm) and sub-legal (<35 cm) pearl perch, while those individuals showing no signs of barotrauma were more likely to survive in the short term. Examination of the swim bladders in the laboratory, combined with observations in the field, revealed that swim bladders rupture during ascent from depth allowing swim bladder gases to escape into the gut cavity. As angled fish approach the surface, the alimentary tract ruptures near the anus allowing swim bladder gases to escape the gut cavity. As a result, very few pearl perch exhibit barotrauma symptoms and no barotrauma mitigation strategies were recommended. The results of this study show that pearl perch are relatively resilient to catch-and-release suggesting that post-release mortality would not contribute significantly to total fishing mortality. We recommend the use of circle hooks, fished actively on tight lines, combined with minimal handling in order to maximise the post-release survival of pearl perch.Crown

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Campbell¹,

McLennan²,

Sumpton³

2014

Fisheries Research

View full text Add to dashboard Cite

show abstract

“…It appears that the most important factor influencing survival of fish caught and released by anglers is the anatomical site of hooking-whether a fish is hooked in the mouth, gills, esophagus, or elsewhere (Pelzman 1978, Weidlein 1987, Muoneke and Childress 1994, Bartholomew and Bohnsack 2005, Butcher et al 2007). Eariier, we investigated the relationships between water temperature and anatomical site of hooking with survival of largemouth bass (Micropterus salmoides) to develop a predictive model (Wilde and Pope 2008).…”

Section: Introductionmentioning

confidence: 99%

Survival of Foul-Hooked Largemouth Bass (Micropterus salmoides)

Pope

Wilde²

2010

Journal of Freshwater Ecology

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We conducted a field experiment to determine the survival rate of foul-hooked (hooked external to the oral cavity) largemouth bass (Micropterus salmoides) caught and released by recreational anglers. Of 42 largemouth bass caught with hard-plastic baits containing three treble hooks, 15 were hooked only within the mouth and 27 had at least one hook penetrating the external surface of the fish (i.e., foul-hooked). There was no difference in survival of mouth-hooked (loo%), foul-hooked (loo%), or control (100%) largemouth bass.

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Postrelease Mortality of Angled Tarpon in Puerto Rico

et al. 2023

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Tarpon Megalops atlanticus is a popular and economically important inshore sport fish in Puerto Rico, and the pursuit of this species by local anglers and tourists contributes to the economy. This species is managed as a no-take fishery, which aims to preserve populations by catching and releasing fish that would otherwise be subjected to harvest and removal from the population. The approach assumes minimal mortality and/or reduced fitness of released fish, yet the process of angling can produce many sublethal side effects or direct mortality. In this study, charter angling for Tarpon in the San Juan lagoon system in Puerto Rico was examined to determine postrelease mortality. Angled fish were externally tagged with acoustic transmitters and relocated periodically to determine the fate after release. Postrelease mortality was at least 4.5% (two fish observed dead) and at most 18.2% (observed dead plus classified dead based on lack of movement; confidence interval [CI] = 7.5-28.9%). Some tag loss was observed, which could have artificially elevated classified mortality estimates. Potential factors that contribute to mortality are discussed and compared to the literature. Hook type, gear action, landing procedures, and air exposure were key areas of possible improvement. Recommendations to minimize fish harm during angling include the use of heavier action gear to reduce fight time, a circle hook requirement for live bait to reduce deep hooking, maintaining fish in the water during landing and photography, and limiting air exposure to 2 min or less if fish are removed from the water.

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Release method and anatomical hook location: effects on short-term mortality of angler-caught Acanthopagrus australis and Argyrosomus japonicus

Cited by 40 publications

References 33 publications

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

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

Survival of Foul-Hooked Largemouth Bass (Micropterus salmoides)

Postrelease Mortality of Angled Tarpon in Puerto Rico

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