Canadian Journal of Fisheries and Aquatic Sciences最新文献_第3页

Forestry and stream temperatures: a response to comment by R.D. Moore 林业与溪流温度：对 R.D. Moore 所提意见的回应

IF 2.4 2区农林科学

Canadian Journal of Fisheries and Aquatic Sciences Pub Date : 2024-02-22 DOI: 10.1139/cjfas-2023-0306

Dylan S. Cunningham, Douglas C. Braun, Jonathan W. Moore, Amanda M. Martens

引用次数: 0

Correction: Accounting for transient dynamics could improve the use of marine protected areas as a reference point for fisheries management 更正：考虑瞬态动态可改善海洋保护区作为渔业管理参考点的使用情况

IF 2.4 2区农林科学

Canadian Journal of Fisheries and Aquatic Sciences Pub Date : 2024-02-14 DOI: 10.1139/cjfas-2024-0024

V.I. Quennessen, E.A. Babcock, J.W. White

引用次数: 0

Apparent migration and natal homing of a small minnow in a large ancient lake 大型古湖中一条小鲦鱼的明显迁徙和产地归宿

IF 2.4 2区农林科学

Canadian Journal of Fisheries and Aquatic Sciences Pub Date : 2024-02-13 DOI: 10.1139/cjfas-2022-0207

Takeshi Kikko, Takuya Sato, Minoru Kanaiwa, Daisuke Ishizaki, Kunihiko Kuwamura, Haruo Okamoto, Atsuhiko Ide, Morihito Nemoto, Shoichiro Takeoka, Yoshiaki Kai, Kouji Nakayama, Yasuhiro Fujioka

{"title":"Apparent migration and natal homing of a small minnow in a large ancient lake","authors":"Takeshi Kikko, Takuya Sato, Minoru Kanaiwa, Daisuke Ishizaki, Kunihiko Kuwamura, Haruo Okamoto, Atsuhiko Ide, Morihito Nemoto, Shoichiro Takeoka, Yoshiaki Kai, Kouji Nakayama, Yasuhiro Fujioka","doi":"10.1139/cjfas-2022-0207","DOIUrl":"https://doi.org/10.1139/cjfas-2022-0207","url":null,"abstract":"Canadian Journal of Fisheries and Aquatic Sciences, Ahead of Print. Migratory freshwater fish species are particularly susceptible to population decline because they rely on multiple habitats and open passages to complete their life cycle. Understanding the migratory patterns of cyprinids is thus essential for their management and conservation. Gnathopogon caerelescens, a small cyprinid species endemic to Lake Biwa (Japan), is one of the most important targets of inland fisheries. However, their abundance has dramatically decreased. By using an extensive alizarin complexone-mark-and-recapture program for of G. caerelescens juveniles, together with the collaboration of commercial fishermen, this cyprinid fish was demonstrated as: (1) migrating from a nursery lagoon toward the main lake and moving along the near-shore from spring to autumn; (2) migrating from the near-shore shallow habitats to off-shore deep habitats from autumn to winter; and (3) migrating to a nursery lagoon from off-shore deep habitats from winter to spring. These results highlighted the importance of protecting individual spawning/nursery habitats, and maintaining connectivity between each spawning/nursery habitat and the lake system.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":"19 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139755026","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

A Bayesian spatially explicit estimation of daily egg production: application to anchovy in the Bay of Biscay 对每日产卵量的贝叶斯空间显式估算：应用于比斯开湾的鳀鱼

IF 2.4 2区农林科学

Canadian Journal of Fisheries and Aquatic Sciences Pub Date : 2024-02-02 DOI: 10.1139/cjfas-2023-0126

Leire Citores, Leire Ibaibarriaga, Maria Santos, Andres Uriarte

{"title":"A Bayesian spatially explicit estimation of daily egg production: application to anchovy in the Bay of Biscay","authors":"Leire Citores, Leire Ibaibarriaga, Maria Santos, Andres Uriarte","doi":"10.1139/cjfas-2023-0126","DOIUrl":"https://doi.org/10.1139/cjfas-2023-0126","url":null,"abstract":"Canadian Journal of Fisheries and Aquatic Sciences, Ahead of Print. Biomass estimates of fish resources by the daily egg production method (DEPM) are sensitive to the high variability of the daily egg production (P0) and egg mortality (Z) in space. This work presents a Bayesian approach to estimate these parameters. A prior distribution of Z based on literature serves to overcome the biologically implausible Z estimates that can result from frequentist approaches. In addition to the classical estimation of a single P0 over the spawning area, the Bayesian framework allows also the modelling of egg densities in space, by including either spatial random effects, smoothing functions, or kriging like models, providing insights into the spatial variability of P0. The Bayesian approach was applied to the Bay of Biscay anchovy DEPM surveys. Results showed that this Bayesian approximation solved the implausible Z problem resulting in tighter credible intervals of both P0 and Z. Overall, spatial models outperformed the non-spatial model in terms of goodness of fit and resulted in slightly different total production estimates across models for each year, with a moderate decrease on uncertainty estimates.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":"12 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139657745","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

Seventy years of diminishing biocomplexity of California Central Valley hatchery steelhead, Oncorhynchus mykiss 加利福尼亚中央河谷孵化钢鳟鱼（Oncorhynchus mykiss）七十年来生物复杂性的不断降低

IF 2.4 2区农林科学

Canadian Journal of Fisheries and Aquatic Sciences Pub Date : 2024-02-02 DOI: 10.1139/cjfas-2023-0077

Eric R. Huber, Rachael E. Ryan, Rachel C. Johnson, Anna M. Sturrock, Robert A. Lusardi, Stephanie M. Carlson

{"title":"Seventy years of diminishing biocomplexity of California Central Valley hatchery steelhead, Oncorhynchus mykiss","authors":"Eric R. Huber, Rachael E. Ryan, Rachel C. Johnson, Anna M. Sturrock, Robert A. Lusardi, Stephanie M. Carlson","doi":"10.1139/cjfas-2023-0077","DOIUrl":"https://doi.org/10.1139/cjfas-2023-0077","url":null,"abstract":"Canadian Journal of Fisheries and Aquatic Sciences, Ahead of Print. The California Central Valley steelhead (Oncorhynchus mykiss) has declined precipitously since Euro-American colonization and has been listed as threatened under the United States Endangered Species Act since 1998. Hatchery-origin fish now dominate the population, and hatchery management is a key listing factor. However, scant release metric information is available. We compiled a time series of O. mykiss hatchery release data for all four Central Valley hatcheries releasing O. mykiss between 1948 and 2017. The biocomplexity of released fish has declined since the early 1980s. Individuals have been released at increasingly similar numbers, biomass, body sizes, times, and locations over time. Moreover, yearling fish have been released at larger sizes, leading to the near-exclusive release of age-1 smolts in February and March since the late 1990s and early 2000s. Pervasive reductions in release portfolios have likely occurred for other hatchery-supported Pacific salmonid stocks throughout the Pacific Rim region. In an increasingly variable environment, such reductions in intraspecific diversity could significantly affect population stability and resilience.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":"23 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139657754","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

Biologgers reveal unanticipated issues with descending angled walleye with barotrauma symptoms 生物学家发现，有气压外伤症状的下降角度马口鱼会出现意想不到的问题

IF 2.4 2区农林科学

Canadian Journal of Fisheries and Aquatic Sciences Pub Date : 2024-01-10 DOI: 10.1139/cjfas-2023-0141

Jamie C. Madden, Luc LaRochelle, Declan Burton, Sascha C. Danylchuk, Andy J. Danylchuk, Steven J. Cooke

{"title":"Biologgers reveal unanticipated issues with descending angled walleye with barotrauma symptoms","authors":"Jamie C. Madden, Luc LaRochelle, Declan Burton, Sascha C. Danylchuk, Andy J. Danylchuk, Steven J. Cooke","doi":"10.1139/cjfas-2023-0141","DOIUrl":"https://doi.org/10.1139/cjfas-2023-0141","url":null,"abstract":"Canadian Journal of Fisheries and Aquatic Sciences, Ahead of Print. Without sufficient time to diffuse air from their swim bladders, physoclistous fish caught in deep water can exhibit symptoms of barotrauma. In this study, we tested the effectiveness of four barotrauma relief techniques on 76 walleye (Sander vitreus) and compared their 10 min post-release behaviour and depth selection with an untreated control group using a biologger containing a tri-axial accelerometer and depth sensor. Vented fish showed the best success rate of returning to depth, while no untreated controls were able to swim down. For fish that remained at depth, half were found to have lost orientation and were upside down during the entire monitoring period, with this orientation being strongly associated with the relief method. Vented fish had higher chances (80%) of remaining in the correct orientation at depth compared with the other methods (average of 38%). Our research shows that the best way to prevent negative outcomes of barotrauma is to avoid fishing at depths that yield barotrauma; however, if unavoidable, affected fish should be carefully vented by trained anglers to best reduce post-release impairments.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":"53 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139412439","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

Freshwater fish otoliths record signals from both water and physiological processes: new insights from Sr/Ca and Ba/Ca ratios 淡水鱼耳石同时记录了水和生理过程的信号：从 Sr/Ca 和 Ba/Ca 比值中获得新启示

IF 2.4 2区农林科学

Canadian Journal of Fisheries and Aquatic Sciences Pub Date : 2024-01-09 DOI: 10.1139/cjfas-2022-0030

G. Bareille, M. Vignon, A. Chappaz, A. Fontaine, H. Tabouret, F. Morat, J. Martin, J.C. Aymes, F. Daverat, C. Pécheyran, O. Donard

{"title":"Freshwater fish otoliths record signals from both water and physiological processes: new insights from Sr/Ca and Ba/Ca ratios","authors":"G. Bareille, M. Vignon, A. Chappaz, A. Fontaine, H. Tabouret, F. Morat, J. Martin, J.C. Aymes, F. Daverat, C. Pécheyran, O. Donard","doi":"10.1139/cjfas-2022-0030","DOIUrl":"https://doi.org/10.1139/cjfas-2022-0030","url":null,"abstract":"Canadian Journal of Fisheries and Aquatic Sciences, Ahead of Print. Using strontium (Sr) and barium (Ba) in otoliths to determine natal origins and understand patterns of fish movements is based on the fundamental assumption that otoliths record water chemistry signals without any major alterations. Although prior studies highlighted that fish physiology can modify the water signal in otoliths, studies for freshwater fish are scarce. We exposed different groups of Atlantic salmon parr Salmo salar to different scenarios of ambient-level variations in Sr/Ca and Ba/Ca ratios and then combined otolith chemical profiles with environmental data (water chemistry and temperature), Fulton's index, and otolith growth rates to assess what factors explain/influence the elemental ratios of Sr and Ba in otoliths. Generalized additive mixed models (GAMMs) using water-based otolith composition, temperature, Fulton's index, and “individual” as explanatory variables allow to demonstrate that water chemistry alone cannot fully explain measured ratios in otoliths, except in scenarios involving significant changes in water chemistry. Other factors (physiological effects) should be accounted for reproducing short and minimal seasonal variations in water composition, considering that inter-individual variability contributes quite significantly in most scenarios.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":"212 4 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139376362","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

Spatiotemporal model improves survey indices for witch flounder stock assessment in the Grand Banks 时空模型改进了大浅滩巫师鲽鱼量评估的调查指数

IF 2.4 2区农林科学

Canadian Journal of Fisheries and Aquatic Sciences Pub Date : 2024-01-09 DOI: 10.1139/cjfas-2023-0101

Jiaying Chen, Jinrong Gao, Fan Zhang

{"title":"Spatiotemporal model improves survey indices for witch flounder stock assessment in the Grand Banks","authors":"Jiaying Chen, Jinrong Gao, Fan Zhang","doi":"10.1139/cjfas-2023-0101","DOIUrl":"https://doi.org/10.1139/cjfas-2023-0101","url":null,"abstract":"Accurate and precise estimates of survey abundance indices are essential inputs for stock assessment models therefore are important for the successful conservation and management of fisheries stocks. Since abundance indices can be standardized by various different ways from conventional design-based approaches to model-based approaches, it is essential to compare the efficiency of those approaches and quantify the consequences for stock assessments. In this study, we focus on an important commercial stock of witch flounder (Glyptocephalus cynoglossus) in NAFO 3N+3O divisions. We first compare the survey indices standardized by design-based and model-based approaches, and find that a model-based estimator provides more precise estimates of survey indices than design-based approach for this stock. We then apply a widely used Age-structured Statistical Catch-at-Length (ACL) assessment model to the standardized catch-at-length survey indices from both approaches to estimate the age-based population dynamics for this stock. We conclude that the ACL model fit to model-based indices performed better than the same model fit to design-based indices.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":"52 29","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139442140","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

Semi-pelagic self-adjusting otter boards: effects on the catching performance of a demersal trawl 半远洋自动调节水獭板：对底栖拖网捕捞性能的影响

IF 2.4 2区农林科学

Canadian Journal of Fisheries and Aquatic Sciences Pub Date : 2024-01-09 DOI: 10.1139/cjfas-2023-0224

Morteza Eighani, T. Malta, Valentina Melli, Finbarr G. O’Neill

{"title":"Semi-pelagic self-adjusting otter boards: effects on the catching performance of a demersal trawl","authors":"Morteza Eighani, T. Malta, Valentina Melli, Finbarr G. O’Neill","doi":"10.1139/cjfas-2023-0224","DOIUrl":"https://doi.org/10.1139/cjfas-2023-0224","url":null,"abstract":"In this study, we investigate whether replacing conventional seabed-contacting otter boards with semi-pelagic self-adjusting otter boards (SAO), which have the ability to maintain a given height above the seabed, affects catch efficiency of a demersal fish trawl. Experimental fishing trials, using the alternate haul method, were conducted in the Kattegat and Skagerrak with three otter board configurations using: conventional seabed-contacting otter boards; the SAO set to maintain a target height over the seabed of 1 m; and the SAO set to maintain a target height 5 m. Replacing conventional otter boards with SAO resulted in a loss of catch efficiency for haddock (Melanogrammus aeglefinus), whiting (Merlangius merlangus), and plaice (Hippoglossoides platessoides), while no significant difference was found for cod (Gadus morhua), common dab (Limanda limanda) and lemon sole (Microstomus kitt). When comparing the SAO - 1m and SAO - 5m, it was observed that SAO - 5m resulted in a loss of catch efficiency for haddock and plaice, a minimal reduction for cod and no significant difference for whiting, common dab, and lemon sole.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":"4 6","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139443874","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

Improving escape efficiency in selective devices with the use of a dark tunnel 利用暗道提高选择性设备的逃逸效率

IF 2.4 2区农林科学

Canadian Journal of Fisheries and Aquatic Sciences Pub Date : 2024-01-09 DOI: 10.1139/cjfas-2023-0232

Mette Munkholm Svantemann, Esther Savina, L. Krag

{"title":"Improving escape efficiency in selective devices with the use of a dark tunnel","authors":"Mette Munkholm Svantemann, Esther Savina, L. Krag","doi":"10.1139/cjfas-2023-0232","DOIUrl":"https://doi.org/10.1139/cjfas-2023-0232","url":null,"abstract":"Despite management efforts, like the implementation of escape panels and openings, unwanted catch remains a challenge in demersal trawl fisheries. Studies report that selectivity in escape panels and openings can be low. We explore the selective potential of a large escape opening placed in the aft of the trawl. We then examine if adding a dark tunnel behind the escape opening can increase the escape efficiency of fish by triggering a station-holding behavior. Our results showed limited escapement through the large escape opening, however, significant for narrow length ranges of some species. Adding the dark tunnel significantly increased the escapement for all analysed species, with escapement up to 70 (40-83)% and 63 (8-93)% for roundfish and flatfish, respectively. As target species, a loss of crustaceans up to 85 (60-96)% highlighted the importance of optimising the integration of the dark tunnel in demersal trawls. Providing the dark tunnel is integrated correctly, our results suggest that currently implemented escape panels and openings with low selective efficiency could be substantially improved by simple means like the dark tunnel.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":"37 31","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139443013","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