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The effects of light intensity and water clarity on growth rates of age-0 walleye (Sander vitreus) 光照强度和水浊度对0岁黄眼鱼生长速率的影响
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-05-19 DOI: 10.1016/j.fishres.2025.107399
Noland O. Michels , Thomas R. Hrabik , Quinnlan C. Smith , Greg G. Sass , Allen F. Mensinger
{"title":"The effects of light intensity and water clarity on growth rates of age-0 walleye (Sander vitreus)","authors":"Noland O. Michels ,&nbsp;Thomas R. Hrabik ,&nbsp;Quinnlan C. Smith ,&nbsp;Greg G. Sass ,&nbsp;Allen F. Mensinger","doi":"10.1016/j.fishres.2025.107399","DOIUrl":"10.1016/j.fishres.2025.107399","url":null,"abstract":"<div><div>Growth rates in fish are a function of temperature and may also be dependent on successful foraging periods. Successful foraging of visually mediated piscivores is often contingent on available light. In north-temperate lakes, tannin concentrations can absorb downwelling light leading to lower light intensities which may influence fish foraging success and growth. We tested tannin and light intensity effects on wild age-0 walleye <em>Sander vitreus</em> growth, which may have implications for survivorship and recruitment. Age-0 walleye (127–182 mm TL) were held under three light intensities (3.16 × 10<sup>14</sup>, 3.16 × 10<sup>15</sup>, and 2.88 × 10<sup>17</sup> photons m<sup>−2</sup> s<sup>−1</sup>) and tannin concentrations (0 mg/L, 10 mg/L, and 20 mg/L). Walleye were grown at 18 °C for 16 days and TL (mm) and weight (g) were measured at days 0, 8, and 16. The number of fathead minnow (<em>Pimephales promelas</em>; 31–42 mm total length) consumed was recorded each day. Age-0 walleye growth was positive, ranging from 0.0092 g g<sup>−1</sup> day<sup>−1</sup> at 9.44 × 10<sup>15</sup> photons m<sup>−2</sup> s<sup>−1</sup> (∼750 lx surface intensity) in clear water to 0.0223 g g<sup>−1</sup> day<sup>−1</sup> at 1.58 × 10<sup>15</sup> photons m<sup>−2</sup> s<sup>−1</sup> (∼10 lx surface intensity) in heavily stained water. Growth was greatest in low light conditions and heavily stained waters. Our results suggest that heavily stained lakes and rivers with good optical refuge where light intensity is reduced at depth may be best for juvenile walleye growth.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"287 ","pages":"Article 107399"},"PeriodicalIF":2.2,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144083721","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}
引用次数: 0
Juvenile and small adult cowcod (Sebastes levis) show high post-release survival following angling-induced barotrauma 幼鱼和小成年鳕鱼(sebases levis)在钓鱼引起的气压损伤后表现出较高的释放后存活率
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-05-16 DOI: 10.1016/j.fishres.2025.107403
Nicholas C. Wegner , Lyall Bellquist , Roberto Silva , John R. Hyde
{"title":"Juvenile and small adult cowcod (Sebastes levis) show high post-release survival following angling-induced barotrauma","authors":"Nicholas C. Wegner ,&nbsp;Lyall Bellquist ,&nbsp;Roberto Silva ,&nbsp;John R. Hyde","doi":"10.1016/j.fishres.2025.107403","DOIUrl":"10.1016/j.fishres.2025.107403","url":null,"abstract":"<div><div>The cowcod, <em>Sebastes levis</em>, is a large slow-growing rockfish species found along the West Coast of the United States and Baja California, Mexico that has been historically heavily exploited off of southern California. As the cowcod population recovers from past overfishing, previously closed fishing areas and depths are reopening, leading to increased fisher interactions with the species, particularly juveniles and small adults, which are typically found at shallower depths closer to shore. In this study, we quantify post-release survival rates of juvenile and small adult cowcod (&lt; 50 cm) following angling-induced barotrauma in comparison to previous work focused on larger adult cowcod. All cowcod were captured using recreational hook-and-line gear and descended back to depth using commercially available fish descending devices. Kaplan-Meier survivorship modeling showed an overall survival rate of 92.9 % (95 % CI: 80.3–100 %) for the 14 cowcod examined (22.9–49.5 cm fork length). This survival rate was nearly twice that determined previously for larger cowcod. The higher survival rate of smaller individuals may reflect their thinner tissues, allowing for expanding gas from the swim bladder to escape the body, thereby preventing some of the severe internal organ damage typically associated with barotrauma in larger cowcod. Combination of our results with previous research thus suggests that small cowcod caught by recreational anglers can be released with high survival rates, while larger cowcod are less likely to survive capture and barotrauma.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"287 ","pages":"Article 107403"},"PeriodicalIF":2.2,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068106","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}
引用次数: 0
Patterns and drivers of movement in the estuary-associated sparid Acanthopagrus australis from a large-scale tagging study 从大规模标记研究中发现,河口相关的疏叶棘南棘的运动模式和驱动因素
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-05-16 DOI: 10.1016/j.fishres.2025.107400
Holly Gunton , Ashley M. Fowler , David J. Booth , John Stewart
{"title":"Patterns and drivers of movement in the estuary-associated sparid Acanthopagrus australis from a large-scale tagging study","authors":"Holly Gunton ,&nbsp;Ashley M. Fowler ,&nbsp;David J. Booth ,&nbsp;John Stewart","doi":"10.1016/j.fishres.2025.107400","DOIUrl":"10.1016/j.fishres.2025.107400","url":null,"abstract":"<div><div>Knowledge of fish movement is essential for implementing appropriate spatial scales of stock assessment and management. This study examines the movement patterns of an important fisheries species <em>Acanthopagrus australis</em>, yellowfin bream, along Australia’s east coast using data from a cooperative tag-recapture program. More than 24, 000 individuals were tagged and released across ∼ 800 km of coastline, with recreational anglers recapturing 2, 036 (8.2 %) individuals during a 19-year period. While a broad range of movements was observed (0–832 km), only 8.6 % of fish moved further than 100 km and a substantial proportion (37 %) of individuals were recaptured at their release location. Generalized additive models indicated that fish were more likely to move if they spent greater time at liberty, were of larger body length at release, and were released during Autumn. Movement distance was greater if fish moved in a northerly direction, spent greater time at liberty and were released at more southerly latitudes. The results indicate that movement of yellowfin bream is restricted over a relatively small spatial scale (&lt; 100 km), with occasional larger movements consistent with multiple behavioural types. The findings suggest that monitoring, assessment and management at a finer spatial scale than the current state-wide approach may be warranted to ensure sustainable fisheries management.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"287 ","pages":"Article 107400"},"PeriodicalIF":2.2,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070783","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}
引用次数: 0
Analysis of the fishing intensity and management status of Anguilla japonica fry in the north coast of the Yangtze River Estuary- based on BeiDou VMS data and licenses data 长江口北岸日本鳗鲡鱼苗捕捞强度及管理现状分析——基于北斗VMS数据和许可证数据
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-05-15 DOI: 10.1016/j.fishres.2025.107406
Chengbin Zhang , Ying Xiong , Dade Song , Hushun Zhang , Shuyan Wang , Zhongjie Kang , Long Liang
{"title":"Analysis of the fishing intensity and management status of Anguilla japonica fry in the north coast of the Yangtze River Estuary- based on BeiDou VMS data and licenses data","authors":"Chengbin Zhang ,&nbsp;Ying Xiong ,&nbsp;Dade Song ,&nbsp;Hushun Zhang ,&nbsp;Shuyan Wang ,&nbsp;Zhongjie Kang ,&nbsp;Long Liang","doi":"10.1016/j.fishres.2025.107406","DOIUrl":"10.1016/j.fishres.2025.107406","url":null,"abstract":"<div><div>The Japanese eel (<em>Anguilla japonica</em>) is one of the Red List of Threatened Species as an “endangered” species in the International Union for Conservation of Nature (IUCN). This study focused on analysing the fishing characteristics of fishing vessels targeting Japanese eel fry (glass eels) within Chinese waters and examining current management practices for this species. We analyzed the fishing behavior of 497 vessels along the north coast of the Yangtze River Estuary using data from the BeiDou Vessel Monitoring System (VMS). Key study insights included the following. (1) The correspondence between vessels' actual fishing range and licensed-designated fishing zones was approximately 48.6 %. (2) The observed fleets mainly fell into two operational categories: Single-vessel (a single vessel fishing independently, SV), representing 15.1 % of the fleets, and Primary-secondary-vessel (where a primary-vessel carries one to three secondary-vessels to the fishing area, anchors, and releases the secondary-vessels to fish independently, PSV), representing 84.9 %. (3) For SVs, fishing areas are categorised into one, two, and more than three areas. (4) Fishing areas varied by vessel size: vessels under 12 m primarily operated in offshore waters at 0–20 m depths, and those over 24 m operated in deeper offshore waters at depths of 20–40 m. In comparison, vessels between 12 and 24 m were located in intermediate areas. (5) Fishing intensity varied significantly across regions, with the highest concentration observed in coastal waters at 0–20 m depth off Rudong waters and Dongtai waters, where fishing density reached 13–18 vessels/100 km<sup>2</sup>. (6) Since the implementation of the Yangtze River Estuary Fishing Ban Zone in 2021, the core fishing grounds of eel fry fishing has shifted from the Haimen at the Yangtze River Estuary to the Rudong and the Dongtai sea waters. Based on the aforementioned research outcomes, the following recommendations are proposed: 1) For PSVs, fishery management authorities should mandate the standardised installation of BeiDou VMS on secondary-vessels. 2) It is advisable to enact regulations stipulating the permissible quantity of fishing nets carried by vessels based on their specifications.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"287 ","pages":"Article 107406"},"PeriodicalIF":2.2,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947741","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}
引用次数: 0
Static nets in motion: Evaluating seabed interactions of trammel nets deployed in two Mediterranean artisanal fisheries 运动中的静态网:评估在两个地中海手工渔业中部署的束缚网的海底相互作用
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-05-15 DOI: 10.1016/j.fishres.2025.107397
Maria del Mar Gil , José María Disdier-Gómez , Gaetano Catanese , Silvia de Juan , Hilmar Hinz
{"title":"Static nets in motion: Evaluating seabed interactions of trammel nets deployed in two Mediterranean artisanal fisheries","authors":"Maria del Mar Gil ,&nbsp;José María Disdier-Gómez ,&nbsp;Gaetano Catanese ,&nbsp;Silvia de Juan ,&nbsp;Hilmar Hinz","doi":"10.1016/j.fishres.2025.107397","DOIUrl":"10.1016/j.fishres.2025.107397","url":null,"abstract":"<div><div>Static fishing gears, such as trammel nets, are traditionally considered to have minor physical impact on benthic habitats and communities. However, some studies suggest notable but poorly quantified interactions with the seabed. This fact can be especially concerning when fishing occurs over complex and sensitive habitats, as is the case of fisheries targeting spiny lobster (<em>Palinurus elephas</em>) in the Mediterranean. Understanding these interactions is crucial for assessing ecological impacts and promoting sustainable practices in small-scale fisheries. This study evaluated the interaction of the trammel nets targeting cuttlefish (<em>Sepia officinalis</em>) and spiny lobster with the seagrass <em>Posidonia oceanica</em> and rhodolith bed (i.e., formed by nodules of coralline red algae) habitats, respectively, using underwater time-lapse cameras, motion sensors, GPS, and catch data. The results confirmed that nets remained static during the soaking, but caused considerable displacement and collapse over the seabed during hauling. These processes increased the contact surface, leading to organism displacement and entanglement. Interaction area between nets and seabed significantly increased with the depth and net length; however, shorter nets generated larger interaction areas when standardized by netting walls. Entanglement of <em>P. oceanica</em> in cuttlefish fishing increased with interaction area, while no such pattern was observed for rhodoliths in lobster fishing, likely due to habitat heterogeneity. The acquired knowledge in this study about the interactions between trammel nets and sensitive benthic habitats facilitates the assessment of fishing impacts and the development of mitigation measures in conservation-focused areas.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"287 ","pages":"Article 107397"},"PeriodicalIF":2.2,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947742","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}
引用次数: 0
Broadband acoustic classification of Atlantic cod, polar cod, and northern shrimp in in situ mesocosm experiments 大西洋鳕鱼、极地鳕鱼和北方虾原位中观实验的宽带声学分类
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-05-13 DOI: 10.1016/j.fishres.2025.107388
Muriel Dunn , Geir Pedersen , Malin Daase , Jørgen Berge , Emily Venables , Sünnje L. Basedow , Stig Falk-Petersen , Tom J. Langbehn , Jenny Jensen , Lionel Camus , Maxime Geoffroy
{"title":"Broadband acoustic classification of Atlantic cod, polar cod, and northern shrimp in in situ mesocosm experiments","authors":"Muriel Dunn ,&nbsp;Geir Pedersen ,&nbsp;Malin Daase ,&nbsp;Jørgen Berge ,&nbsp;Emily Venables ,&nbsp;Sünnje L. Basedow ,&nbsp;Stig Falk-Petersen ,&nbsp;Tom J. Langbehn ,&nbsp;Jenny Jensen ,&nbsp;Lionel Camus ,&nbsp;Maxime Geoffroy","doi":"10.1016/j.fishres.2025.107388","DOIUrl":"10.1016/j.fishres.2025.107388","url":null,"abstract":"<div><div>The northern shrimp (<em>Pandalus borealis</em>) and the Atlantic cod (<em>Gadus morhua</em>) fisheries are prone to bycatch of polar cod (<em>Boreogadus saida</em>), a key Arctic forage fish species. Discrimination between the acoustic signals from these coinciding species could provide information on the risk of bycatch in addition to improving the accuracy of non-lethal scientific stock assessment surveys. As a step towards automatic <em>in situ</em> classification, we conducted a series of single-species mesocosm experiments for broadband target strength spectra measurements of Atlantic cod, polar cod and northern shrimp. Mesocosm experiments were completed with a Wideband Autonomous Transceiver (WBAT) and collected individual target strength spectra, TS(<em>f</em>), between 90–170 kHz and 185–255 kHz. Hundreds of TS(<em>f</em>) were extracted for each species and used to train machine-learning classification algorithms (i.e. classifiers). We found that two supervised learning classifiers, LightGBM and support vector machine, were able to achieve high classification performance (89%) on target spectra shape with a single 200 kHz transducer operating in broadband mode. This is promising for acoustic classification from autonomous platforms with limited payload. We explore the utilization of single transducer target spectra shape variability and provide recommendations to overcome challenges associated with scaling the method successfully for <em>in situ</em> marine species classification not only in the Arctic, but globally.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"286 ","pages":"Article 107388"},"PeriodicalIF":2.2,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942121","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}
引用次数: 0
Length reconstructions as an alternative approach to data-limited fisheries 长度重建作为数据有限的渔业的替代方法
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-05-12 DOI: 10.1016/j.fishres.2025.107401
Matheus L.S. Silva , Humber A. Andrade , Jason M. Cope , Thierry Frédou , Andrey P.C. Soares , Thaiza M.R.R. Barreto , Flávia L. Frédou
{"title":"Length reconstructions as an alternative approach to data-limited fisheries","authors":"Matheus L.S. Silva ,&nbsp;Humber A. Andrade ,&nbsp;Jason M. Cope ,&nbsp;Thierry Frédou ,&nbsp;Andrey P.C. Soares ,&nbsp;Thaiza M.R.R. Barreto ,&nbsp;Flávia L. Frédou","doi":"10.1016/j.fishres.2025.107401","DOIUrl":"10.1016/j.fishres.2025.107401","url":null,"abstract":"<div><div>Real-length catch compositions are crucial for effective fisheries management, providing essential information on stock status and reference points. However, these datasets can be biased due to various factors, leading to unreliable fluctuations in mean lengths over time and potentially inaccurate representations of population length compositions. To address these challenges, a modeling approach was developed to account for the effects of fishing pressure and temperature, while also considering temporal, spatial, and gear-related fluctuations to reconstruct mean length trends. Subsequently, a distribution simulation method was applied to replicate length distributions. This methodology was applied to small tunas in Brazil, revealing a decreasing trend in mean lengths for the majority of species, with reductions of up to 26 % observed in certain cases. Comparative analysis with traditional population simulation methods showed minimal statistical differences, underscoring the effectiveness of our distribution simulation approach. Thus, our method of reconstructing mean length trends and simulating distributions offers a practical solution for managing scenarios with limited size data by correcting length trends over time and improving the availability of length distributions with minimal parameter requirements.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"286 ","pages":"Article 107401"},"PeriodicalIF":2.2,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936874","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}
引用次数: 0
Exploring spatiotemporal non-stationarity of the marine environmental impact on skipjack fishery under different climate conditions in the Western and Central Pacific 中西太平洋不同气候条件下海洋环境对鲣鱼渔业影响的时空非平稳性研究
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-05-09 DOI: 10.1016/j.fishres.2025.107398
Yue Wang , Xiaoming Yang , Jiangfeng Zhu
{"title":"Exploring spatiotemporal non-stationarity of the marine environmental impact on skipjack fishery under different climate conditions in the Western and Central Pacific","authors":"Yue Wang ,&nbsp;Xiaoming Yang ,&nbsp;Jiangfeng Zhu","doi":"10.1016/j.fishres.2025.107398","DOIUrl":"10.1016/j.fishres.2025.107398","url":null,"abstract":"<div><div>The skipjack tuna (<em>Katsuwonus pelamis</em>) is a significant fishery resource within purse seine fisheries in the Western and Central Pacific Ocean. The distribution of skipjack resources is influenced by the El Niño-Southern Oscillation (ENSO), exhibiting diverse spatiotemporal impact mechanisms. To investigate the spatiotemporal non-stationarity of how marine environments affect skipjack catch rate under different climate conditions, we applied the geographically and temporally weighted regression (GTWR) model to skipjack catch rate and marine environmental data from 2004 to 2021. We then compared GTWR with geographically weighted regression and generalized additive models to evaluate its validity. The findings reveal: (1) The GTWR model significantly outperformed the other two models, achieving an adjusted R² of 0.63 and exhibiting lower MAE, RMSE, and RSS values, which demonstrates the presence of spatiotemporal non-stationarity. (2) Skipjack catch rate was significantly affected by sea surface salinity and temperature (SSS, SST) as well as net primary production (NPP). Sea level anomaly (SLA) and mixed layer depth (MLD) had a moderate impact, whereas zonal and meridional current velocities (U55, V55) had a relatively minor influence. (3) The impact of environmental factors displayed varying spatial non-stationarity. Spatial non-stationarity was most pronounced for NPP, SSS, and V55, followed by SLA and SST, and least pronounced for MLD and U55. Notably, SLA spatial non-stationarity decreased during normal periods, U55 increased during El Niño, and MLD and V55 increased during La Niña. (4) Due to spatial differences influenced by ENSO, the eastern study area displayed more significant temporal non-stationarity than the western area.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"286 ","pages":"Article 107398"},"PeriodicalIF":2.2,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143927772","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}
引用次数: 0
An alternative bait for the American lobster fishery composed of fishery by-products to reduce reliance on forage fish 美国龙虾渔业的一种替代饵料,由渔业副产品组成,以减少对饲料鱼的依赖
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-05-09 DOI: 10.1016/j.fishres.2025.107389
Bartholomew P. DiFiore , Brian S. Cheng , Jynessa Dutka-Gianelli , Amanda J. Kinchla , Adrian Jordaan
{"title":"An alternative bait for the American lobster fishery composed of fishery by-products to reduce reliance on forage fish","authors":"Bartholomew P. DiFiore ,&nbsp;Brian S. Cheng ,&nbsp;Jynessa Dutka-Gianelli ,&nbsp;Amanda J. Kinchla ,&nbsp;Adrian Jordaan","doi":"10.1016/j.fishres.2025.107389","DOIUrl":"10.1016/j.fishres.2025.107389","url":null,"abstract":"<div><div>Crustaceans are the subject of valuable, large-scale fisheries around the globe and landings of crustaceans have increased in recent decades. Most crustacean fisheries use traps baited with forage fish that are specifically harvested for the bait market, creating volatility in bait price and placing pressure on forage fish stocks which are critical to broader ecosystem function. The creation of alternative baits that utilize fishery byproducts could therefore increase the economic viability of critical fisheries and reduce pressure on forage fish stocks. Here, we present a transdisciplinary case study in the development of an alternative bait for the American lobster — (<em>Homarus americanus</em>) fishery. Specifically, we formulated an alternative bait composed of ground fish racks (e.g. the remains of commercial fish filleting operations) and hydrolysated, organic fish fertilizer (Neptune’s Harvest©) suspended in a carrageenan-based gel. Field trials under commercial conditions revealed that the best performing alternative prototype captured 53 % as many lobster as traditional bait (Atlantic herring, <em>Clupea harengus</em>). Considering current bait costs, our prototype could prove an economically and ecologically sustainable alternative to traditional forage fish baits. Furthermore, the carrageenan-based formulation could be useful as a liquid attractant delivery system in various crustacean fisheries globally.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"286 ","pages":"Article 107389"},"PeriodicalIF":2.2,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143923293","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}
引用次数: 0
Early life-stage and adult productivity dynamics derived from a state-space stock assessment model for data-limited Thorny Skates (Amblyraja radiata Donovan, 1808) in NAFO Divisions 3LNO and Subdivision 3Ps 根据NAFO 3LNO区和3Ps区数据有限的带刺溜冰鞋(Amblyraja radiata Donovan, 1808)的状态空间存量评估模型得出的早期生命阶段和成年生产力动态
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-05-07 DOI: 10.1016/j.fishres.2025.107396
N.G. Cadigan , R.W. Steele , S.J.W.W.M.M.P. Weerasekera , M.R. Simpson
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