Fisheries Research最新文献

{"title":"Long-term tagging reveals variable escapement of stocked Muskellunge among four Ohio reservoirs: Consequences for managing reservoir fisheries","authors":"Kevin S. Page ,&nbsp;Curtis P. Wagner","doi":"10.1016/j.fishres.2024.107230","DOIUrl":"10.1016/j.fishres.2024.107230","url":null,"abstract":"<div><div>Muskellunge <em>Esox masquinongy</em> are stocked by the Ohio Department of Natural Resources, Division of Wildlife (ODNR-DOW) into nine reservoirs to create trophy fisheries. Escapement is recognized as a potential impediment to maintaining quality fisheries in these reservoirs. We evaluated the escapement of Muskellunge at four reservoirs using mark-recapture methods during 2013–2022. At each reservoir, all juvenile Muskellunge (254–305 mm) stocked during 2013–2018 were implanted with passive-integrated-transponder (PIT) tags prior to release. In addition, adult mark-recapture sampling events were conducted by the ODNR-DOW during 2019–2022 to check for tagged fish and implant untagged fish. Muskellunge anglers were also outfitted with handheld PIT readers to scan and report tagged fish during the study. Escapement was monitored continuously with PIT tag detection systems installed within dam spillways. We used multi-state (in-reservoir vs escaped) mark-recapture models to estimate annual escapement for juvenile (≤ age 1) and adult Muskellunge. A total of 51,826 fish were tagged (51,052 juveniles, 774 adults), resulting in 3428 detections (2316 individuals). The number of Muskellunge escaping varied widely among reservoirs (0–481). Most escapement (85 %) occurred during the spring (March–May). Nearly all (96 %) known age fish that escaped were age 3 or greater. Modelling revealed that annual probability of juvenile escapement (≤ 0.02) was likely inconsequential at all reservoirs. However, adult escapement was highly variable among reservoirs (mean = 0–0.34). Escapement was lowest at reservoirs where water levels are managed via offshore sluice-gate tower structures, and greatest at locations where surface water is discharged from along-shore structures (i.e., crest gates and unregulated spillway). Where escapement occurred, there was a negative relationship between the annual probability of escapement and fishing success. Results will be useful for informing stocking strategies, mitigating fish loss, and managing fishery expectations.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"281 ","pages":"Article 107230"},"PeriodicalIF":2.2,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ecosystem-based fisheries management of crab fisheries in the Bering Sea and Aleutian Islands","authors":"Gordon H. Kruse ,&nbsp;Benjamin J. Daly ,&nbsp;Erin J. Fedewa ,&nbsp;Diana L. Stram ,&nbsp;Cody S. Szuwalski","doi":"10.1016/j.fishres.2024.107236","DOIUrl":"10.1016/j.fishres.2024.107236","url":null,"abstract":"<div><div>We review ecosystem-based fisheries management (EBFM) of crab fisheries in the Bering Sea and Aleutian Islands (BSAI) and discuss considerations for future EBFM efforts under a rapidly changing climate. Specifically, we review governance frameworks, ecosystem policy, fishery ecosystem plans, catch accounting systems, trawl bycatch controls, trawl area closures and habitat protections, gear modifications, a Crab Rationalization Program, Ecosystem and Economic Status Reports, and Ecosystem and Socioeconomic Profiles. The strongest EBFM features of this management system include mechanisms to avoid overfishing, use of scientific knowledge, consideration of ecosystem connections, appropriate monitoring, acknowledging uncertainty, stakeholder involvement, and decisions that reflect societal choice. Some EBFM principles, such as the efficacy of gear and area closures and accounting for the dynamic nature of ecosystems have room for improvement. In spite of the large number of EBFM measures in place, three of the eight BSAI crab stocks with biomass estimates were below their minimum stock size thresholds, and thus classified as “overfished” in 2023. The lack of apparent correspondence between implemented EBFM actions and crab stock trends may indicate that environmentally driven sporadic recruitment, spikes in natural mortality, and stock range shifts mute favorable responses to EBFM actions or that outstanding critical EBFM measures have yet to be addressed. In the face of recent large-scale changes in the marine ecosystems of the BSAI and an outlook for greater changes in the future, it is increasingly important to routinely reevaluate interactions between crab, their ecosystems, fisheries and fishing communities.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"281 ","pages":"Article 107236"},"PeriodicalIF":2.2,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Otolith stable isotopes highlight the importance of local nursery areas as the origin of recruits to yellowfin tuna (Thunnus albacares) fisheries in the western Indian Ocean","authors":"Iraide Artetxe-Arrate ,&nbsp;Igaratza Fraile ,&nbsp;Patricia Lastra-Luque ,&nbsp;Jessica Farley ,&nbsp;Naomi Clear ,&nbsp;Umair Shahid ,&nbsp;Shoaib Abdul Razzaque ,&nbsp;Mohamed Ahusan ,&nbsp;Annie Vidot ,&nbsp;Denham Parker ,&nbsp;Francis Marsac ,&nbsp;Hilario Murua ,&nbsp;Gorka Merino ,&nbsp;Iker Zudaire","doi":"10.1016/j.fishres.2024.107241","DOIUrl":"10.1016/j.fishres.2024.107241","url":null,"abstract":"<div><div>Yellowfin tuna (<em>Thunnus albacares</em>) supports the second largest tuna fishery worldwide, and in the Indian Ocean, it is overfished and subject to overfishing. This situation presents a significant challenge to fisheries management, requiring effective measures to rebuild and then maintain the stock at sustainable levels. A single stock of yellowfin is currently assumed by the Indian Ocean Tuna Commission (IOTC) for stock assessments in the Indian Ocean. However, the relative contribution of different spawning components to the total catches, and the degree of mixing rates of yellowfin tuna in the Indian Ocean by individuals from different production zones, are still unknown. This study uses otolith core oxygen and carbon stable isotope composition (δ¹⁸O and δ¹³C) of young-of-the-year yellowfin tuna from nursery areas located in the western (FAO Area 51) and eastern (FAO area 57) Indian Ocean, either side of 80 ºE, to establish a reference baseline of isotopic signatures. Then, a mixed population program (HISEA) and Random Forest (RF) assignment approaches were used to predict the most likely origin (west or east) of sub-adult and adult yellowfin tuna captured from four fishery areas of the western Indian Ocean (offshore Pakistan, Seychelles, Reunion, and South Africa) by comparing their otolith core values to that of the baseline. Both approaches show that the western Indian Ocean fisheries are mainly composed of west origin fish (&gt; 95 %). We also found some individuals with an otolith isotopic signature that was not characteristic of either of the samples available in the baseline. We simulated an alternative baseline group formed by individuals with mean and standard deviation δ¹³C and δ¹⁸O values above the maximum ranges of the original baseline. We then used RF to infer again the most likely origin of fish in the mixed sample considering 3 possible sources (west, east, alternative). About one third of the samples were assigned to the alternative group, possibly indicating that they differ in geographical or temporal terms with the origins represented in the original baseline. Findings of otolith stable isotope composition of yellowfin tuna in the western Indian Ocean can provide a more comprehensive understanding of the species’ spatial structure and connectivity beyond the current assumption of an ocean basin single stock.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"281 ","pages":"Article 107241"},"PeriodicalIF":2.2,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cormorant predation in fyke net fishing: The direct effects of a protected bird on coastal commercial fishing","authors":"Mats Westerbom ,&nbsp;Camilla Ekblad ,&nbsp;Juhani Hopkins ,&nbsp;Toni Laaksonen ,&nbsp;Mikko Olin ,&nbsp;Antti Ovaskainen ,&nbsp;Veijo Jormalainen","doi":"10.1016/j.fishres.2024.107234","DOIUrl":"10.1016/j.fishres.2024.107234","url":null,"abstract":"<div><div>The population size of great cormorants, <em>Phalacrocorax carbo sinensis,</em> has risen steeply in the Baltic Sea over the past 40 years. The growing population has resulted in polarized conflicts between conservation and coastal fisheries due to the losses cormorants may inflict on fisheries. Mitigation of the conflicts requires objective estimates of true losses to fisheries, but quantitative research on losses has been scarce. We used continuous video-recordings to systematically quantify cormorant visits and their activity at 15 fyke nets during the 2022–2023 breeding and post breeding seasons. More than 2400 h of video footage were recorded, in which cormorants were found for 664 h. We also quantified the frequency of fish injured by birds in coastal fishing catches using data from the EU Fisheries Data Collection Program including data from fyke nets and gill nets. Our results show that cormorants frequently foraged in open, floating fyke nets but relatively rarely in submerged nets, leading to significantly higher losses in the former. Monitoring data from fyke and gill net catches covering the entire Finnish coast revealed that the proportion of bird-injured fish in catches is very modest (0.5 %) but can be considerable in individual catches. Finally, results indicate that cormorant visits and the proportion of injured fish in the catch tend to increase when distance to the nearest cormorant colony decreases. We conclude that the losses caused by birds are generally modest, except in open fyke nets where cormorants may conduct hundreds of dives and catch dozens of fish a day. Our study shows that cormorant depredation is highly variable in time and space, but also partly manageable by selecting gear that conforms to local cormorant pressures. We underline the importance of systematic scientific research when measuring damage caused by cormorants and ask for evidence-based political strategies to mitigate perceived cormorant problems.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"281 ","pages":"Article 107234"},"PeriodicalIF":2.2,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Current status of native crayfish populations in Russia: A brief review of their biology and fisheries","authors":"Alexander G. Dvoretsky,&nbsp;Vladimir G. Dvoretsky","doi":"10.1016/j.fishres.2024.107226","DOIUrl":"10.1016/j.fishres.2024.107226","url":null,"abstract":"<div><div>Historically, Russia has been a leader in the production of freshwater crayfish, with annual exports reaching 2000 t. However, the spread of crayfish plague led to a sharp decline in population densities in the 1970s. In this review, we provide an update on the current status of native crayfish populations in Russia, focusing on their biology and fisheries. The noble crayfish <em>Astacus astacus</em> primarily occur in the northwestern and central regions of Russia, whereas the narrow-clawed crayfish <em>Pontastacus</em> spp. are predominant in the Volga River basin and southern regions. The thick-clawed crayfish inhabits lagoons and estuaries in the Caspian Sea, Sea of Azov, and Black Sea. Between 2012 and 2015, annual catches fluctuated significantly. However, in the following four years, these figures stabilized, with a noticeable upward trend from 2020 onwards. A significant proportion of the total crayfish supply came from reservoirs, with an average contribution of 46 %. In addition, lakes, rivers, and other water bodies collectively contributed average share of 54 %. The Volgograd Reservoir, the Saratov Reservoir, water bodies along the left bank of the Volga River, and the Kuibyshev Reservoir are particularly important in terms of crayfish abundance and production accounting for 79 % of the total crayfish stock. The observed fluctuations in crayfish abundance are mainly due to environmental factors. The fisheries sector faces major challenges, including illegal fishing and habitat degradation.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"281 ","pages":"Article 107226"},"PeriodicalIF":2.2,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Otolith shape variability of labrid fish from Rapa Nui (Easter Island), southeastern Pacific","authors":"Andrés Castro-García ,&nbsp;Erwan Delrieu-Trottin ,&nbsp;Pablo Saenz-Agudelo ,&nbsp;Cristian Rapu-Edmunds ,&nbsp;Guido Plaza ,&nbsp;Federico Márquez ,&nbsp;Mauricio F. Landaeta","doi":"10.1016/j.fishres.2024.107233","DOIUrl":"10.1016/j.fishres.2024.107233","url":null,"abstract":"<div><div>Fish otolith shape provides valuable insights into fish species' taxonomic, phylogenetic, and ecological traits. This study aimed to assess and compare the phenotypic variation in otolith shape among four labrid species (<em>Anampses femininus</em>, <em>Coris debueni</em>, <em>Pseudolabrus fuentesi,</em> and <em>Thalassoma lutescens</em>) inhabiting Rapa Nui (Easter Island) in the southeastern Pacific Ocean, utilizing geometric morphometrics and aging methods. Age estimation based on otolith structure indicated that collected specimens were adults, ranging between 1 and 3 years old. Allometric analysis revealed low but significant variation (5.40 %), primarily driven by changes in otolith width, resulting in distinct morphologies. Principal Component Analysis (PCA) of sagittal otoliths elucidated significant morphospace variation among species, with the first two PCs explaining 60.3 % of the total variance. PC1 distinguished between elongated sagittal shapes (e.g., <em>P. fuentesi</em>) and robust sagittae (e.g., <em>T. lutescens</em>), while PC2 correlated with otolith roundness, delineating variations within species. Canonical variate analysis further highlighted differences in otolith shape, with significant variations detected among all species. The Discriminant function analysis showed high levels of discrimination accuracy for most of species’ pairs. Except for <em>C. debueni</em>-<em>P. fuentesi</em> (89 %) and <em>C. debueni</em>-<em>T. lutescens</em> (96 %), all other species pairs achieved 100 % discrimination, highlighting the reliability of otolith shape as a distinguishing characteristic for the studied species. Overall, our findings emphasize the value of otolith shape analysis for characterizing and distinguishing Rapa Nui labrid species. This offers potential applications such as identifying prey within the digestive systems of large fish or bird predators near this isolated island in the South Pacific Ocean or archaeofauna studies.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"281 ","pages":"Article 107233"},"PeriodicalIF":2.2,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Flume tank trials to investigate the snagging of towed demersal fishing gears on boulders","authors":"Nurul Huda,&nbsp;Tiago Veiga-Malta,&nbsp;Ole Eigaard,&nbsp;Finbarr G. O’Neill","doi":"10.1016/j.fishres.2024.107237","DOIUrl":"10.1016/j.fishres.2024.107237","url":null,"abstract":"<div><div>The snagging of towed demersal fishing gears on seabed features and obstructions can have economic, safety, ecological and environmental consequences. Nevertheless, very little is known about the snagging process, the extent to which it occurs and how best to mitigate it. Here we present the results of a systematic flume tank study to investigate which gear-types are more likely to snag on boulders, which part of a given gear snagging is more likely to occur, and what are the characteristic features of the boulders shapes and size that increase the likelihood of snagging. As a case study we focus on gears that are typical of Jammerbugt, Denmark and show that tickler chain beam trawls are more likely to snag, while the snagging likelihood of the otter trawl, Danish seine and chain mat beam trawl are similar. Our approach and the methodology we develop will help design safer and more sustainable gears that interact less with the seabeds habitats and features. They will provide insights as to which gears can be used on which fishing grounds, contribute to a reduction of abandoned, lost and discarded fishing gears (ALDFG), improve fisher safety, and help fisheries managers develop measures that will promote more environmentally friendly and sustainable fisheries.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"281 ","pages":"Article 107237"},"PeriodicalIF":2.2,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Abundance and distribution of larval and early juvenile fish in Puck Lagoon and outer Puck Bay in the southern Baltic Sea","authors":"Dariusz P. Fey,&nbsp;Martyna Greszkiewicz,&nbsp;Lena Szymanek,&nbsp;Małgorzata Dembek","doi":"10.1016/j.fishres.2024.107235","DOIUrl":"10.1016/j.fishres.2024.107235","url":null,"abstract":"<div><div>Puck Bay, regarded as a crucial region along the Polish coastline, has witnessed a decline in fish taxa diversity and abundance over the past several years. The objective of this study was to ascertain the abundance and geographical distribution of fish larvae in Puck Lagoon and outer Puck Bay over the period from April to the end of September. A neuston net with a 300-μm mesh was utilized at 10–15 stations situated in the shallow coastal waters of the study area. A total of 13 taxa were identified among the larvae captured. The majority of larvae observed during the entire study period were identified as Gobiidae. Furthermore, the most abundant taxa were three-spined stickleback, broad-nosed pipefish, straight-nosed pipefish, Ammodytidae, and sprat. The presence of larvae belonging to other taxa, including herring, flounder, cod, turbot, fourbeard rockling, and roach, was observed on a sporadic basis. Details such as Shanon’s diversity Index, the month of larval presence, geographical distribution, and differences in abundance and body size between Puck Lagoon and outer Puck Bay were recorded. The findings indicated that the study area was characterized by a limited diversity of fish taxa. Furthermore, the majority of these taxa (e.g., Gobiidae, broadnose and straight-nosed pipefishes) are not the subject of fishing activities. Nevertheless, they serve as a food source for other taxa and are integral to the ecological balance of the ecosystem. It can thus be concluded that Puck Lagoon and the outer Puck Bay constitute an important habitat for non-commercial and commercial fish taxa.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"281 ","pages":"Article 107235"},"PeriodicalIF":2.2,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Using species-specific behavior to improve catch efficiency of target species in mixed trawl fisheries","authors":"Ludvig A. Krag ,&nbsp;Rikke P. Frandsen ,&nbsp;Bent Herrmann ,&nbsp;Grete E. Dinesen ,&nbsp;Junita D. Karlsen","doi":"10.1016/j.fishres.2024.107232","DOIUrl":"10.1016/j.fishres.2024.107232","url":null,"abstract":"<div><div>Demersal trawl fisheries are increasingly challenged by new and more ambitious gear regulations alongside rising fuel costs. However, knowledge of behavioral differences between species are yet poorly integrated and exploited in commercially operated trawl designs. In the demersal mixed species trawl fishery for <em>Nephrops</em> (<em>Nephrops norvegicus</em>), many fish species are herded by the netting and actively avoid contact with the meshes as opposed to <em>Nephrops</em>, for which most individuals are tumbling along the bottom panel of the gear towards the codend. By reducing the mesh size of the entire lower half of the trawl we reduced the loss of marketable sized <em>Nephrops</em> through the bottom panels significantly by 47.2 % (CI: 33.6–60.2 %) in the North Sea. The unchanged catches of the round fish, cod (<em>Gadus morhua</em>) and hake (<em>Merluccius merluccius</em>) confirm that these species do not come in physical contact with the bottom panel. In contrast, witch flounder (<em>Glyptocephalus cynoglossus</em>) escapes through the bottom panel of the baseline trawl as the treatment gear caught 65.1 % (CI: 39.5–104.9 %) more marketable-sized individuals and 259.7 % (CI: 144.4–459.5 %) more undersized individuals. Our results confirm known species-specific behavior in the forward part of the trawl and demonstrate how this can be exploited with simple design changes to increase the catch efficiency for <em>Nephrops</em> and likely other species without affecting the catches of roundfish. The undersized individuals captured will largely escape through the meshes used in commercial codends.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"281 ","pages":"Article 107232"},"PeriodicalIF":2.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ice angling for northern pike (Esox lucius) with tip ups: Hook style affects angler catch and fish welfare","authors":"Julee Stewart,&nbsp;Shayna Cossette,&nbsp;Christopher M. Somers","doi":"10.1016/j.fishres.2024.107227","DOIUrl":"10.1016/j.fishres.2024.107227","url":null,"abstract":"<div><div>Catch and release ice angling exposes fish to environments and techniques that differ markedly from those in the open-water season. Accordingly, we studied the influence of quick-strike treble hooks and 0º offset circle hooks on aspects of northern pike (<em>Esox lucius</em>) capture and behaviour using tip-ups during the winter. Based on 221 northern pike captured over three winters, quick strike rigs with multiple hooks had higher catch success, but extended dehooking time and caused more foul hooking. Deep hooking events were infrequent but were most likely to occur when pike were captured on the single treble quick strike rig and circle hook. Camera footage revealed that pike were tentative and appeared to require considerable time to strike. Hook style had no influence on fish behaviour when striking. Our findings suggest that the use of triple treble quick strike rigs may provide benefits to anglers because they hook more and slightly larger fish and do not result in deep-hooking events. Circle hooks caught in the jaw most frequently and were the easiest to remove most of the time; however, they periodically deep-hooked fish, which was unexpected. Ultimately, angler tackle choice will affect their enjoyment of ice angling, and the potential for stress and injury to fish when using tip ups.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"281 ","pages":"Article 107227"},"PeriodicalIF":2.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142720019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}