Mortality impact of recreational angling techniques and hook types on Trachynotus ovatus (Linnaeus, 1758) following catch-and-release

Alós, Josep

doi:10.1016/j.fishres.2008.08.007

Cited by 25 publications

(29 citation statements)

References 22 publications

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“…Millard et al (2005) associated a decrease in angling mortality with increased fish size for striped bass (Morone saxatalis Walbaum), in agreement with the findings of Hall et al (2009) and Alós (2009). Other authors found no significant effect of fish size on mortality (Nelson 1998;Cooke et al 2003;Broadhurst et al 2012 a).…”

Section: Discussionsupporting

confidence: 65%

“…The experiments in the Negro River basin showed that all peacock bass mortalities were associated with gill and throat injuries, supporting the argument that hook location is a strong factor in fish mortality (Millard et al 2003;Alós 2009;Broadhurst et al 2012 a, b). Both fish which suffered throat injuries in our study died, while gill injuries resulted in death 40% of the time.…”

Section: Discussionmentioning

confidence: 65%

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Peacock bass mortality associated with catch-and-release sport fishing in the Negro River, Amazonas State, Brazil

et al. 2014

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Sport fishing for peacock bass Cichla spp. in the Brazilian Amazon has increased in popularity and attracts anglers who generate significant economic benefits in rural regions. The sustainability of this fishery is partly dependent on the survival of fish caught through catch-and-release fishing. The objective of this work was to investigate, hooking mortality of Cichla spp., including speckled peacock bass (C. temensis Humbolt), butterfly peacock bass (C. orinocensis Humbolt), and popoca peacock bass (C. monoculus Agassiz) in the basin of the Negro River, the largest tributary of the Amazon River. Fish were caught at two different sites using artificial lures, transported to pens anchored in the river and monitored for 72 hours. A total of 162 individual peacock bass were captured and hooking mortality (mean % ± 95% confidence intervals) was calculated. Mean mortality was 3.5% (± 5.0), 2.3% (± 3.5) and 5.2% (± 10.2) for speckled peacock bass, butterfly peacock bass, and popoca peacock bass, respectively. Lengths of captured fish ranged from 26 to 79 cm (standard length), however, only fish under 42 cm died. This research suggests that catch-and-release sport fishing of peacock bass does not result in substantial mortality in the Negro River basin. KEYWORDS: Artificial bait, Cichla spp., Fisheries assessment Mortalidade de tucunaré associada à pesca esportiva do pesque e solte no rio Negro, Amazonas, Brasil RESUMO A pesca esportiva de tucunarés Cichla spp., na Amazônia brasileira, aumentou em popularidade nos últimos anos e tem atraído pescadores esportivos que geram benefícios econômicos para essa região. Entretanto, a sustentabilidade dessa pescaria depende em parte da sobrevivência dos peixes capturados por meio da prática do pesque e solte. O objetivo deste trabalho foi avaliar a mortalidade de Cichla spp., incluindo o tucunaré paca (C. temensis Humbolt), o borboleta (C. orinocensis Humbolt) e o popoca (C. monoculus Agassiz) em dois locais na bacia do rio Negro, o maior tributário do rio Amazonas. Os peixes foram capturados por variados tipos de iscas artificiais e posteriormente monitorados em viveiros construídos no próprio rio por 72 horas. Um total de 162 tucunarés foi capturado, e as mortalidades (% ± intervalo de confiança 95%) foram calculadas. A mortalidade foi 3,5% (± 5,0), 2,3% (± 3,2) e 5,2% (±10,2) para o paca, o borboleta e o popoca, respectivamente. O comprimento padrão dos peixes capturados variou de 26 a 79 cm, mas apenas os peixes menores até 42 cm morreram. A pesquisa sugere que a pesca esportiva não causou substancial mortalidade na população de Cichla spp. na bacia do rio Negro. PALAVRAS-CHAVE: Isca artificial, Cichla spp., Avaliação pesqueira Peacock bass mortality associated with catch-and-release sport fishing in the Negro River, Amazonas State, Brazil 528VOL. 44(4) 2014: 527 -532  THOMÉ-SOUZA et al.

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Section: Discussionsupporting

confidence: 65%

Section: Discussionmentioning

confidence: 65%

Peacock bass mortality associated with catch-and-release sport fishing in the Negro River, Amazonas State, Brazil

et al. 2014

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“…When collective confinement was used, only one specimen of peacock bass died after release, while in individual confinement there was no mortality after three days of confinement. Mortality rates calculated for fish subjected to confinement should be considered conservative estimates (Pollock and Pine, 2007) because confinement does not simulate natural environmental conditions when the fish are returned to water (Alós, 2009). In contrast, the mortality rate in the experiment without confinement, in which telemetry was used to monitor the fish in their natural environment, was higher.…”

Section: Discussionmentioning

confidence: 99%

“…Schill (1996), Schisler and Bergersen (1996), Dubois and Kuklinski (2004) and Reeves and Bruesewitz (2007) observed that the chances of fish swallowing the bait are greatly diminished when artificial baits are used as these are operated actively. Although mortality varies between species, higher mortality rates in general are associated with injury to internal organs and lesions with the presence of bleeding that could be associated with the use of natural bait (Muoneke and Childress, 1994;Bartholomew and Bohnsack, 2005;Broadhurst et al, 2005;Reeves and Bruesewitz, 2007;Alós et al, 2008;Alós, 2009). …”

Section: Discussionmentioning

confidence: 99%

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Estimation of peacock bass (Cichla spp.) mortality rate during catch-release fishing employing different post-capture procedures

2017

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The effect of catch-and-release fishing on the survival of peacock bass (Cichla spp.) was evaluated by comparing two types of artificial bait (jig and shallow-diver plugs) and two types of post-catch confinement. Two experiments were conducted during the periods January-February and October-November 2012 in the Unini River, a right-bank tributary of the Negro River. In total, 191 peacock bass were captured. Both groups of fish were subjected to experimental confinement (collective and individual) for three days. Additionally, 11 fish were tagged with radio transmitters for telemetry monitoring. Mortality rate was estimated as the percentage of dead individuals for each type of bait and confinement. For peacock bass caught with jig baits, mortality was zero. The corresponding figure for shallow-diver bait was 1.66% for fish in collective containment, 18.18% for fish monitored by telemetry and 0% for individuals confined individually. Our results show low post-release mortality rates for peacock bass. Furthermore, neither the type of confinement nor the type of bait had a statistically significant influence on mortality rates. While future studies could include other factors in the analysis, our results show that catch-and-release fishing results in low mortality rates.Keywords: Cichla spp., angling, artificial baits, fish mortality, post-catch confinement.Estimativa da taxa de mortalidade do tucunaré (Cichla spp.) durante a prática do pesque-solte ResumoO efeito do pesque-solte na sobrevivência do tucunaré (Cichla spp.) foi avaliado comparando dois tipos de iscas artificiais, jig e de meia-água, e dois tipos de confinamento pós-captura. Dois experimentos foram conduzidos durante os períodos de janeiro-fevereiro e outubro-novembro de 2012, no Rio Unini, afluente da margem direita do Rio Negro. No total, 191 tucunarés foram capturados. Os peixes foram submetidos a um confinamento experimental (coletivo e individual) com duração de três dias. Além disso, 11 peixes foram marcados com radiotransmissores e liberados imediatamente após a captura, sendo monitorados por telemetria. A taxa de mortalidade foi calculada como a porcentagem de indivíduos mortos para cada tipo de isca e tratamento (confinamento individual, coletivo e sem confinamento). Não houve mortalidade para o grupo de tucunarés capturados com isca jig. A isca de meia-água mostrou uma taxa de mortalidade de 1,66% para o confinamento coletivo e 18,18% para os peixes monitorados por telemetria. Nossos resultados mostraram baixas taxas de mortalidade pós-soltura para tucunaré. Além disso, nem o tipo de confinamento, nem o tipo de isca tiveram influência significativa nas taxas de mortalidade. Ainda que estudos futuros possam incluir novos fatores na análise, os nossos resultados mostram que a prática do pesque-solte resulta em baixas taxas de mortalidade.Palavras-chave: Cichla spp., pesca, iscas artificiais, mortalidade de peixes, confinamento pós-captura.

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Impact of hook choice, fish size, and water temperature on hooking depth, injury, and postcapture physiology in Channel Catfish

Hintz,

Qualich,

Brunais

et al. 2024

Trans Am Fish Soc

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ObjectiveCatch‐and‐release angling is an oft‐practiced conservation tool involving the release of captured game fish either due to harvest regulations or conservation ethic on the part of the angler. Central to this practice is the assumption that released fish survive; however, a large body of work has shown that postrelease mortality can occur, especially if fish are injured during the capture process. In this study, we examined hooking location, bleeding, injury rates, and postcapture physiology in Channel Catfish Ictalurus punctatus, a popular game fish species.MethodsA total of 83 Channel Catfish were angled from a lake in southern Illinois using conventional rod‐and‐reel techniques with one of four hook types (J‐hook, shiner, circle, and octopus). Captured fish were then assessed for hooking depth, bleeding, and injury. Subsequently, a subset of 40 fish were additionally held for 4 h in submerged totes before being tested for reflex responsiveness and undergoing a blood biopsy for glucose and lactate levels.ResultCircle and octopus hooks reduced hooking depth in Channel Catfish compared with J‐hooks and tended to reduce postcapture bleeding as well. Postholding physiological results showed no effect of hook type on blood lactate or glucose levels, and reflex impairment was very rare (only a single fish was impaired for any reflexes 4 h postcapture).ConclusionOverall, the results of this study suggest that the use of circle hooks reduce the likelihood of deep hooking and injury in Channel Catfish, though Channel Catfish, at least in the short term, were physiologically resilient to the effects of capture.

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Mortality impact of recreational angling techniques and hook types on Trachynotus ovatus (Linnaeus, 1758) following catch-and-release

Cited by 25 publications

References 22 publications

Peacock bass mortality associated with catch-and-release sport fishing in the Negro River, Amazonas State, Brazil

Peacock bass mortality associated with catch-and-release sport fishing in the Negro River, Amazonas State, Brazil

Estimation of peacock bass (Cichla spp.) mortality rate during catch-release fishing employing different post-capture procedures

Impact of hook choice, fish size, and water temperature on hooking depth, injury, and postcapture physiology in Channel Catfish

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