Importance of Assessing Population‐Level Impact of Catch‐and‐Release Mortality

Kerns, Janice A.; Allen, Micheal S.; Harris, Julianne E.

doi:10.1080/03632415.2012.731878

Cited by 50 publications

(33 citation statements)

References 11 publications

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“…Aló s, 2008; Aló s et al, 2009b; Veiga et al, 2011;Weltersbach and Strehlow, 2013), the survival rates for most of the presented species in this paper are unknown. Post-release mortality can contribute substantially to the total recreational fishing mortality (Kerns et al, 2012) and can bias current estimates that are based only on harvest data. Coggins et al (2007) showed that unaccounted hooking mortality of about 30% rendered many fishing regulations ineffective.…”

Section: Discussionmentioning

confidence: 99%

“…This is necessary to allow estimation of overall fishing mortality based on all fishing-induced deaths (Clark, 1983) (i.e. by adding the instantaneous C&R fishing mortality F cr to total fishing mortality; Kerns et al, 2012) and to identify factors that have a significant impact on the survival of the released species (Aló s et al, 2009b). Once critical factors have been identified, it may be possible to derive post-release mortalities for different fisheries, e.g.…”

Section: Pollack (Pollachius Pollachius)mentioning

confidence: 99%

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Unexpectedly high catch-and-release rates in European marine recreational fisheries: implications for science and management

Ferter

Weltersbach

Strehlow

et al. 2013

ICES Journal of Marine Science

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While catch-and-release (C&R) is a well-known practice in several European freshwater recreational fisheries, studies on the magnitude and impact of this practice in European marine recreational fisheries are limited. To provide an overview of the practice and magnitude of C&R among marine recreational anglers in Europe, the existing knowledge of C&R and its potential associated release mortality was collected and summarized. The present study revealed that in several European countries over half of the total recreational catch is released by marine anglers. High release proportions of . 60% were found for Atlantic cod (Gadus morhua), European sea bass (Dicentrarchus labrax), pollack (Pollachius pollachius), and sea trout (Salmo trutta) in at least one of the studied European countries. In the case of the German recreational Baltic Sea cod fishery, release proportions varied considerably between years, presumably tracking a strong year class of undersized fish. Reasons for release varied between countries and species, and included legal restrictions (e.g. minimum landing sizes and daily bag limits) and voluntary C&R. Considering the magnitude of C&R practice among European marine recreational anglers, post-release mortalities of released fish may need to be accounted for in estimated fishing mortalities. However, as the survival rates of European marine species are mostly unknown, there is a need to conduct post-release survival studies and to identify factors affecting post-release survival. Such studies could also assist in developing species-specific, best-practice guidelines to minimize the impacts of C&R on released marine fish in Europe.

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Section: Discussionmentioning

confidence: 99%

Section: Pollack (Pollachius Pollachius)mentioning

confidence: 99%

Unexpectedly high catch-and-release rates in European marine recreational fisheries: implications for science and management

Ferter

Weltersbach

Strehlow

et al. 2013

ICES Journal of Marine Science

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“…This would support previous work on M. salmoides in other estuarine systems that report a decreased salinity tolerance in larger fish due to ontogenetic differences in osmoregulation (Glover et al 2012). Other drivers such as susceptibility to fishing pressure and increased biotic interactions (Kerns et al 2012;Magoulick & Kobza 2003), could also be responsible for this size-selective mortality.…”

Section: Variation In Survivalsupporting

confidence: 75%

“…where F is the instantaneous fishing mortality and M is the instantaneous natural mortality (Kerns et al 2012); however recaptures were too low to distinguish between the two. Tag loss and failure were assumed to be negligible, as demonstrated for PIT tagged Largemouth Bass in previous studies (Siepker et al 2012 and references therein).…”

Section: Survival Modelmentioning

confidence: 99%

“…In addition to predation, the concentration of fishes in coastal refuges also increases their susceptibility to fishing pressure (Boucek & Rehage 2013b), potentially increasing fishing catch-and-release and harvest mortality (e.g., Kerns et al 2012). Lastly, salinities increase rapidly in DRY periods likely intensify concentration by reducing the extent of suitable coastal refuge habitats and eventually leading to direct mortality when levels exceed lethal limits of salinity.…”

Section: Variation In Survivalmentioning

confidence: 99%

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Drying Times: Integrating Citizen Science to Examine Survival of Florida Largemouth Bass in a Coastal Refuge Habitat

Lee¹

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In aquatic systems refuge habitats increase resistance to drying events and are necessary for maintaining populations in disturbed environments. However, reduced water availability and altered flow regimes threaten the existence and function of these habitats. To test refuge function I conducted a capture-mark-recapture (CMR) study, integrating citizen science angler sampling into fisheries-independent methods. The objectives of this study were twofold: 1) To determine the contribution of citizen science anglers to improving CMR research, and 2.) to quantify apparent survival of Florida Largemouth Bass, Micropterus salmoides floridanus, in a coastal refuge habitat across multiple years of drying severity. The inclusion of angler sampling was determined to be an effective and feasible method for increasing capture probability. Apparent survival of Florida Bass varied among hydrologic periods with lowest survival when marshes functionally dried (< 10 cm). Overall mortality from drying events increased with the duration of marsh drying upstream.

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