Impact of retrieval time and hook type on hooking depth in ice-angled northern pike caught on tip-ups

Althoff, Andrew L.; Hasler, Caleb T.; Louison, Michael J.

doi:10.1016/j.fishres.2020.105502

Cited by 5 publications

(9 citation statements)

References 31 publications

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“…Potentially exacerbating handling issues for pike is the common winter angling tactic of using baited lines set on "tip-up" devices. Tip ups are set lines that trigger a signal flag when a fish strikes or moves the bait; these devices are only attended by anglers when the flag is triggered (Althoff et al 2020). Thus, large predatory fish may have more time to swallow the bait and become deep-hooked, damaging gills, the gastrointestinal tract, or other vital organs (Dextrase and Ball 1991;Persons and Hirsch 1994).…”

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confidence: 99%

“…Larger pike are generally more difficult to play, handle, and dehook than smaller ones, which may increase the likelihood of stress and injury associated with catch and release. Despite these potential concerns, recent studies showed that pike were not often deep-hooked on tip-ups and suffered no shortterm mortality after ice angling (Louison et al 2017a;Althoff et al 2020). However, these studies assessed relatively small fish and did not assess postrelease behavior outside of holding tanks (<66 cm, Louison et al 2017a;<50 cm, Althoff et al 2020).…”

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confidence: 99%

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Chasing Northern Pike under Ice: Long‐Distance Movements Following Catch‐and‐Release Ice Angling

Somers

Goncin

Hamilton

et al. 2021

N American J Fish Manag

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Catch-and-release ice angling is a popular recreational activity, but little is known about the postrelease behavior of fish in the winter. Cold water temperatures and an ambush hunting strategy may constrain Northern Pike Esox lucius, limiting their postrelease movements to a small area near the capture location. We used manual acoustic telemetry to track 15 Northern Pike ranging from 56 to 98.5 cm total length for up to 7 d after catch-andrelease ice angling in Buffalo Pound Lake, Saskatchewan, Canada. All of the fish but one moved unexpectedly long distances of several km over the tracking period. For the fish that were tracked over all 7 d, path lengths traveled ranged from 1.4 to 18.4 km. The minimum daily distance traveled ranged from 0 to 4.6 km and varied significantly by tracking day; the fish moved shorter distances on day 4 postrelease. There was a significant interaction between fish size and day postrelease; larger fish moved shorter minimum daily distances and dispersed shorter distances from the release site over the first 2 d of tracking. In contrast, by 5 d after release, both the largest and smallest fish had dispersed the longest distances from the release site and intermediate-sized fish dispersed the least. The cumulative path length traveled by day 5 of tracking did not reveal any significant size-based patterns. Our study raises the possibility that relatively large movements may be common for Northern Pike in the winter despite cold water temperatures and their expected foraging behavior. In addition, postrelease behavior varies with fish size. Habitat and space requirements for Northern Pike in the winter can encompass much larger areas and more habitat features than has been previously envisioned.

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confidence: 99%

mentioning

confidence: 99%

Chasing Northern Pike under Ice: Long‐Distance Movements Following Catch‐and‐Release Ice Angling

Somers

Goncin

Hamilton

et al. 2021

N American J Fish Manag

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“…Reasons for this lack of study include challenges of winter field biology such as cold temperatures, malfunctioning field equipment and higher costs associated with winter field research (Lavery 2015). To date only a handful of iceangling studies that have been published, focusing on hooking location and delayed mortality (Dextrase and Ball 1991;Persons and Hirsch 1994;DuBois et al 1994;Twardek et al 2018;Althoff et al 2020;Somers et al 2021) as well as physiological and behavioural effects of iceangling on fish (Louison et al 2017b(Louison et al , 2017aLogan et al 2019;Bieber et al 2019). These physiological assessments highlight that stress responses exhibited in fish following a C&R event during ice-angling are different than those angled in warmer temperatures (Arlinghaus et al 2009;Louison et al 2017bLouison et al , 2017aTwardek et al 2018).…”

Section: Knowledge Gap #2: Understudied Practicesmentioning

confidence: 99%

“…The process of ice-angling requires that hooked fish be retrieved and then handled out of water. Retrieval times vary from a few seconds to several minutes, depending on the type of gear used and the size of the fish captured (Althoff et al 2020), and landed fish are often held in the air or on ice for a few seconds to several minutes to remove hooks and to take measurements and photos (Lawrence et al in review). While fish are frequently harvested, many fish are released back through the hole in the ice for a variety of reasons, including conservation ethics and morals, bycatch, culling and harvest regulations (Cooke and Suski 2005;Arlinghaus et al 2007).…”

Section: Introductionmentioning

confidence: 99%

“…Only a handful of ice-angling studies have been completed, primarily focusing on hooking location and delayed mortality (Dextrase and Ball 1991;Persons and Hirsch 1994;DuBois et al 1994;Twardek et al 2018;Althoff et al 2020;Somers et al 2021). The results indicate that deeply hooked fish may be susceptible to higher rates of delayed mortality following ice-angling, and these studies focus on species commonly targeted by ice-anglers such as lake trout (Salvelinus namaycush), northern pike (Esox lucius) and walleye (Dextrase and Ball 1991;Persons and Hirsch 1994;DuBois et al 1994;Twardek et al 2018;Althoff et al 2020).…”

Section: Introductionmentioning

confidence: 99%

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Quantifying biological responses of catch-and-release angling in understudied fish species and practices

Card¹

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Many catch-and-release angling events involve air exposure and exhaustive exercise that elicit a physiological stress response, and depending on a variety of factors, delayed mortality is a possible outcome. There have been ample studies in this area, however, significant gaps exist in the literature for species that are targeted by more specialized anglers, such as freshwater drum (Aplodinotus grunniens). I quantified physiological and reflex responses in freshwater drum following angling, across seasons. Once a fish was on the line, the fight duration and time exposed to air were varied to account for differences in angler skill level (fight time range: 5 s to 2 min; air exposure range: 20 s to 3 min). Location and severity of injury were determined, blood biopsies were taken to quantify physiological stress, and reflex impairment was assessed. Thirtyone percent of fish captured were deeply hooked in the esophagus tissue. Freshwater drum experienced a disruption in homeostasis as blood glucose, plasma cortisol and plasma lactate increased significantly from baseline values following angling. Additionally, seasonal differences were observed for blood glucose and plasma cortisol as higher values were observed in the summer when compared to the spring. The ‘orientation’ reflex was the most frequently impaired (29 % of fish lacked this reflex), but impairment did not differ seasonally. Because freshwater drum have the largest latitudinal range of any North American freshwater fish and are being targeted more frequently by anglers as of late, it is important to fill this knowledge gap regarding their responses to angling events to develop best practices for anglers to promote conservation. The wide distribution of freshwater drum may also make them a candidate model species for addressing the convergence between assessing the impacts of catch-and-release angling and other environmental issues facing freshwater fishes, such as climate change.

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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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Impact of retrieval time and hook type on hooking depth in ice-angled northern pike caught on tip-ups

Cited by 5 publications

References 31 publications

Chasing Northern Pike under Ice: Long‐Distance Movements Following Catch‐and‐Release Ice Angling

Chasing Northern Pike under Ice: Long‐Distance Movements Following Catch‐and‐Release Ice Angling

Quantifying biological responses of catch-and-release angling in understudied fish species and practices

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

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