Consequences of catch-and-release angling for black bream Spondyliosoma cantharus, during the parental care period: implications for management.

Pinder, A. C., Velterop, R., Cooke, S.J. and Britton, J.R., 2016. Consequences of catch-and-release angling for black bream Spondyliosoma cantharus, during the parental care period: implications for management. ICES Journal of Marine Science, 73 (7).

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DOI: 10.1093/icesjms/fsw151

Abstract

Black sea bream Spondyliosoma cantharus is highly valued for its sporting and eating qualities. Due to its inshore spawning aggregations and male nest guarding behaviors, it is considered vulnerable to over-exploitation via recreational angling. Accordingly, greater uptake of the practice of catch-and-release (C&R) may provide some potential to limit the effects of angling on populations. Thus, the consequences of C&R for 40 S. cantharus (mean length 306 ± 10 mm) were assessed. Fish were sampled following their capture from charter boats by recreational anglers with varying levels of skill and experience. Of these fish, 17% were deeply hooked (e.g. in esophagus) and considered at high risk of post-release mortality (PRM). Blood lactate levels ranged between 0.40 and 2.60 mmol l − 1 (mean ± SE: 1.25 ± 0.09) and were significantly and positively correlated with fight time. Reflex impairments were observed in 32% of the catch, also suggesting an elevated probability of PRM. Hook damage was the only significant predictor of reflex impairment. The dominance of males (89%) across the catches highlighted the potential for additional indirect impacts of angling via the predation of eggs by conspecifics in the vacated nests of captured males. These results are discussed within the context of post-release performance of individual S. cantharus, the potential for C&R to limit impact at the population level and a need to consider future regulation of the fishery to ensure sustainability of stocks.

Item Type:Article
ISSN:1054-3139
Additional Information:This is a pre-copy edited, author-produced PDF of an article accepted for publication in ICES Journal of Marine Science following peer review. The version of record [Pinder, A. C., Velterop, R., Cooke, S.J. and Britton, J.R., 2016. Consequences of catch-and-release angling for black bream Spondyliosoma cantharus, during the parental care period: implications for management. ICES Journal of Marine Science, 73 (7)] is available online at:http://icesjms.oxfordjournals.org/content/early/2016/09/06/icesjms.fsw151.short?rss=1 [DOI 10.1093/icesjms/fsw151]
Subjects:UNSPECIFIED
Group:Faculty of Science & Technology
ID Code:24708
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:07 Oct 2016 09:01
Last Modified:07 Oct 2016 09:03

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