Evaluation of catch-and-release angling practices for the fat snook Centropomus parallelus in a Brazilian estuary

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dc.contributor.authorLennox, Robert J.
dc.contributor.authorBrownscombe, Jacob W.
dc.contributor.authorCooke, Steven J.
dc.contributor.authorDanylchuk, Andy J.
dc.contributor.authorMoro, Pietro S.
dc.contributor.authorSanches, Eduardo A. [UNESP]
dc.contributor.authorGarrone-Neto, Domingos [UNESP]
dc.contributor.institutionFish Ecology and Conservation Physiology Laboratory, Department of Biology, Carleton University
dc.contributor.institutionMoro Fishing Ltd.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T16:38:29Z
dc.date.available2018-12-11T16:38:29Z
dc.date.issued2015-08-01
dc.description.abstractRecreational fisheries are developing for many iconic marine and estuarine fish species and are generating important social and economic returns in Brazil. Fat snook is the primary target species in southeastern Brazil and it supports a vibrant fisheries sector, including recreational fishing tournaments. To evaluate the impacts of recreational angling practices, we examined external hooking injuries, secondary physiological stress responses (i.e., blood glucose and lactate concentrations; N = 24), reflex impairment (N = 39), and overnight survival (N = 39) of fat snook angled with and without air exposure. We also examined physiological stress and reflex impairment of fat snook captured in a fishing tournament (N = 43) immediately post weigh-in and 1 h post weigh-in. Values were compared to baseline reflexes (N = 10) and physiology (N = 8) collected from minimally stressed fat snook. Fish captured by anglers infrequently had hooking injury but all angling and tournament treatments resulted in significantly elevated blood glucose and lactate, indicating a considerable physiological response to angling. Angling with air exposure and tournament weigh-in (in a dry container) resulted in the highest blood lactate values. The body flex reflex was occasionally impaired after angling or tournament practices, but this was consistent with baseline reflex actions, and the body flex reflex was therefore not a valuable indicator of fisheries stress or mortality in fat snook. Although angling and tournament practices caused a marked physiological stress response, low mortality of snook indicated that the species is resilient to brief bouts of angling at moderate water temperatures. However, high lactate values associated with air exposure suggest that handling practices be refined, particularly during tournament weigh-in. We recommend that anglers reduce air exposure intervals when handling snook prior to release and that recreational tournaments adopt wet weigh-in procedures to maximize the utility of catch-and-release in this fishery.en
dc.description.affiliationFish Ecology and Conservation Physiology Laboratory, Department of Biology, Carleton University
dc.description.affiliationDepartment of Environmental Conservation, University of Massachusetts Amherst
dc.description.affiliationMoro Fishing Ltd., R. José Benedito Cotolengo 819
dc.description.affiliationUNESP - São Paulo State University, College of Fishery Engineering, Av. Nelson Brihi Badur 430
dc.description.affiliationUnespUNESP - São Paulo State University, College of Fishery Engineering, Av. Nelson Brihi Badur 430
dc.description.sponsorshipNatural Sciences and Engineering Research Council of Canada
dc.format.extent1-7
dc.identifierhttp://dx.doi.org/10.1016/j.ocecoaman.2015.05.005
dc.identifier.citationOcean and Coastal Management, v. 113, p. 1-7.
dc.identifier.doi10.1016/j.ocecoaman.2015.05.005
dc.identifier.file2-s2.0-84929321743.pdf
dc.identifier.issn0964-5691
dc.identifier.scopus2-s2.0-84929321743
dc.identifier.urihttp://hdl.handle.net/11449/167825
dc.language.isoeng
dc.relation.ispartofOcean and Coastal Management
dc.relation.ispartofsjr0,896
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectCentropomidae
dc.subjectRecreational fisheries
dc.subjectReflex action mortality predictors
dc.subjectStress physiology
dc.subjectTournament angling
dc.titleEvaluation of catch-and-release angling practices for the fat snook Centropomus parallelus in a Brazilian estuaryen
dc.typeArtigo

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