North American Journal of Fisheries Management最新文献

{"title":"Comparisons of donor stray percentages between hatchery‐ and natural‐origin Chinook Salmon and steelhead in the upper Columbia watershed","authors":"Todd N. Pearsons, Rolland R. O'Connor","doi":"10.1002/nafm.10988","DOIUrl":"https://doi.org/10.1002/nafm.10988","url":null,"abstract":"ObjectiveArtificial propagation of Pacific salmon <jats:italic>Oncorhynchus</jats:italic> spp. is commonly used to achieve conservation and harvest goals. However, unintended effects of artificial propagation, such as high donor stray percentages, can reduce numbers of adults that return to target areas and also contribute spawners to different populations where they are undesirable. Until recently, it was difficult to assess if hatchery‐origin fish stray rates were atypical because few estimates of stray rates of natural‐origin fish were available. We sought to fill that gap by comparing donor stray percentages of hatchery‐ and natural‐origin Chinook Salmon <jats:italic>O. tshawytscha</jats:italic> and steelhead <jats:italic>O. mykiss</jats:italic> from the same locations.MethodsWe used 29,885 last passive integrated transponder tag detections of adult fish to estimate and compare donor stray percentages of hatchery‐origin and natural‐origin Chinook Salmon and steelhead in the upper Columbia River watershed between 2002 and 2018.ResultDonor stray percentages of hatchery‐origin spring, summer, and fall Chinook Salmon and steelhead were &lt;0.3% at the upper Columbia basin scale and similar to natural‐origin donor stray percentages. Only steelhead donor stray percentages were higher for hatchery‐origin adults at the subbasin scale than natural‐origin counterparts and were &lt;22% for all taxa. The percentage of hatchery‐origin steelhead and spring Chinook Salmon released in tributaries were detected at nontarget areas at higher percentages (&lt;63%) than natural‐origin counterparts born in these tributaries. Returning hatchery‐origin and natural‐origin Chinook Salmon and steelhead generally strayed in an upstream direction in similar proportions. Juvenile spring Chinook Salmon that were moved 14–391 km from centralized hatcheries to tributaries for overwintering or final acclimation strayed at a much higher rate than those that completed their incubation, rearing, and acclimation at a single location, but this did not occur with steelhead. Other adaptive management actions that were implemented to reduce straying produced mixed results. A high proportion of stray hatchery‐origin spring Chinook Salmon initially homed to tributary weirs.ConclusionDonor stray percentages of hatchery‐origin Chinook Salmon and steelhead were generally not higher than natural‐origin donor stray percentages at larger spatial scales (e.g., upper Columbia basin and subbasin) but were higher at smaller spatial scales (e.g., tributaries). A variety of approaches can be considered to reduce undesirable production of strays, but most of them involve difficult management trade‐offs.","PeriodicalId":19263,"journal":{"name":"North American Journal of Fisheries Management","volume":"48 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140032412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acoustic telemetry tracking of Coho Salmon smolts released from a community‐run hatchery into a marine inlet reveals low early ocean survival","authors":"Adam M. Kanigan, Scott G. Hinch, Andrew G. Lotto, Kamil Szlachta, Stephen D. Johnston, Stephanie A. Lingard","doi":"10.1002/nafm.10979","DOIUrl":"https://doi.org/10.1002/nafm.10979","url":null,"abstract":"ObjectiveHatcheries are used to help supplement populations of Pacific salmon <jats:italic>Oncorhynchus</jats:italic> spp. for conservation and fisheries purposes and to provide stewardship opportunities. In British Columbia, small community‐run hatcheries typically focus on the latter and generally do not know the efficacy of their release approaches, unlike larger production hatcheries.MethodsWe used acoustic telemetry to track the survival and behavior of 90 hatchery‐reared Coho Salmon <jats:italic>O. kisutch</jats:italic> smolts, released from a community hatchery, through Burrard Inlet and into the Strait of Georgia. This is the first study to track Coho Salmon smolts released directly into a marine environment and one of very few studies to track them in an oceanic setting.ResultSmolt survival was lowest through the first 3 km of the migration at 37%, and the estimated cumulative survival to the final array (~20 km from release) was 10–23%. The presence of numerous predators in the region suggests that predation is a possible explanation for poor survival over the relatively short migration distance. Travel rates ranged from ~4 to 18 km/day, depending on the migration segment, which is slower than the marine migration of smolts from other species, likely increasing exposure to predators. However, we found potential evidence of “predator swamping,” as survival estimates across migration segments were highest for the final of our three release groups and poorest for the first release group, with intergroup survival estimates increasing by 7–12% in the final three migration segments. Releasing smolts at high densities and at night, as our partner hatchery currently does, likely improves smolt survival.ConclusionOur work demonstrates how acoustic telemetry can be used to examine hatchery practices and propose potential improvements. Saltwater readiness and the release location are factors that our results suggest may warrant future attention to potentially improve marine survival of Coho Salmon smolts.","PeriodicalId":19263,"journal":{"name":"North American Journal of Fisheries Management","volume":"34 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140025545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estimating internal transmitter and external tag retention by Walleye in the Laurentian Great Lakes over multiple years","authors":"S. F. Colborne, M. D. Faust, T. O. Brenden, T. A. Hayden, J. M. Robinson, T. M. MacDougall, H. A. Cook, D. A. Isermann, D. J. Dembkowski, M. Haffley, C. S. Vandergoot","doi":"10.1002/nafm.10973","DOIUrl":"https://doi.org/10.1002/nafm.10973","url":null,"abstract":"Both electronic tags (e.g., acoustic and radio transmitters) and conventional external tags are used to evaluate movement and population dynamics of fish. External tags are also sometimes used to facilitate the recovery of internal electronic tags or other instrumentation because healing can make it difficult to identify fish with internal tags based on appearance alone. With both tag types, tag shedding and failure of electronic tags can affect accuracy and precision of study results.","PeriodicalId":19263,"journal":{"name":"North American Journal of Fisheries Management","volume":"28 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139770282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Population genomics of coastal Pacific Hake","authors":"Gary C. Longo, Melissa A. Head, Sandy L. Parker-Stetter, Ian G. Taylor, Vanessa J. Tuttle, Alicia A. Billings, Stéphane Gauthier, Michelle M. McClure, Krista M. Nichols","doi":"10.1002/nafm.10969","DOIUrl":"https://doi.org/10.1002/nafm.10969","url":null,"abstract":"Understanding the genetic structure of harvested fishery species is crucial for accurate stock assessments and effective management strategies. There have been several rangewide population genetic analyses of Pacific Hake <i>Merluccius productus</i>; however, a thorough focus on the heavily harvested coastal stock off the west coast of North America is missing. Recent observations of spatial–temporal variability in life history and migratory patterns of the coastal population have brought into question whether this variation may be related to genetic differentiation.","PeriodicalId":19263,"journal":{"name":"North American Journal of Fisheries Management","volume":"15 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139770286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Precision of four calcified structures for age estimation of Black Carp","authors":"P. T. Kroboth, A. M. Herndon, C. L. Broaddus, J. R. Fischer","doi":"10.1002/nafm.10983","DOIUrl":"https://doi.org/10.1002/nafm.10983","url":null,"abstract":"Black Carp <i>Mylopharyngodon piceus</i> is an emerging invasive species in North America with an expanding population in the Mississippi River basin. Current aging methods use a suite of structures for age estimation, and a single structure is needed to minimize processing time, to maximize consistency of age and growth measurements, and to allow for back-calculation of individual fish length at age.","PeriodicalId":19263,"journal":{"name":"North American Journal of Fisheries Management","volume":"255 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139770140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Do live-well additives influence the physiological and behavioral recovery of Largemouth Bass?","authors":"Luc LaRochelle, Laura Haniford, Declan Burton, John F. Bieber, Jessica A. Robichaud, Cory D. Suski, Andy J. Danylchuk, Steven J. Cooke","doi":"10.1002/nafm.10975","DOIUrl":"https://doi.org/10.1002/nafm.10975","url":null,"abstract":"There is an ongoing effort to enhance the welfare and survival of black bass <i>Micropterus</i> spp. released after angling tournaments. Live-well additives are substances added to live-well water that are intended to help fish recover during retention. Aside from claims made by manufacturers, little information is available on the additives' effectiveness for recovery or their potential welfare consequences. Thus, our objective was to test whether live-well additives influence fish physiology and postrelease behavior.","PeriodicalId":19263,"journal":{"name":"North American Journal of Fisheries Management","volume":"38 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139656634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing electrofishing effort required to estimate species richness of fishes in nonwadeable rivers of Alabama, USA","authors":"Steven M. Sammons, Jason E. Dattilo, Steven J. Rider","doi":"10.1002/nafm.10952","DOIUrl":"https://doi.org/10.1002/nafm.10952","url":null,"abstract":"Much of the fish biodiversity in the southeastern USA is found in lotic systems, but assessment of fish community structure in large nonwadeable rivers has lagged compared to streams. Sampling designs that adequately estimate species richness are a prerequisite to creating bioassessment metrics but thus far has not been attempted in highly biodiverse rivers in the southeastern USA east of the Mississippi River.","PeriodicalId":19263,"journal":{"name":"North American Journal of Fisheries Management","volume":"27 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139516935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fishery management strategies for Red Snapper in the southeastern U.S. Atlantic: A spatial population model to compare approaches","authors":"Kyle Shertzer, Scott Crosson, Erik Williams, Jie Cao, Rick DeVictor, Chris Dumas, Geneviève Nesslage","doi":"10.1002/nafm.10966","DOIUrl":"https://doi.org/10.1002/nafm.10966","url":null,"abstract":"Red Snapper <i>Lutjanus campechanus</i> is an iconic species in the southeast U.S. Atlantic Ocean, sought by both commercial and recreational fleets. Five stock assessments over the past quarter century have shown Red Snapper to be experiencing overfishing. Highly restricted landings since 2010 have been insufficient to end overfishing because fishing effort is not species specific but rather applies generally to a complex of reef-associated species. Consequently, Red Snapper are discarded as bycatch when regulations prohibit their retention, and many of the discarded fish die from hook injury, barotrauma, or depredation.","PeriodicalId":19263,"journal":{"name":"North American Journal of Fisheries Management","volume":"79 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139516930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bringing partners together: A symposium on native lampreys and the Pacific Lamprey Conservation Initiative","authors":"Theresa L. Liedtke, Julianne E. Harris, Christina J. Wang, Trent M. Sutton","doi":"10.1002/nafm.10970","DOIUrl":"https://doi.org/10.1002/nafm.10970","url":null,"abstract":"<h2> CONFLICT OF INTEREST STATEMENT</h2>\u0000<p>The authors declare they have no conflict of interest.</p>","PeriodicalId":19263,"journal":{"name":"North American Journal of Fisheries Management","volume":"461 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139482562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Weirs: An effective tool to reduce hatchery–wild interactions on the spawning grounds?","authors":"Jeremy T. Wilson, Thomas W. Buehrens","doi":"10.1002/nafm.10961","DOIUrl":"https://doi.org/10.1002/nafm.10961","url":null,"abstract":"Hatchery-produced salmon and steelhead <i>Oncorhynchus mykiss</i> mitigate for habitat loss and support valuable commercial, recreational, and tribal fisheries. However, excessive interactions between hatchery and wild fish can also cause harm to wild populations. Weirs have been implemented as a management tool to remove returning hatchery-origin Chinook Salmon <i>O. tshawytcha</i> adults to reduce the proportion of hatchery-origin spawners (pHOS) in spawning areas used by their wild counterparts. Using a decade of data since new weirs were implemented, our objective was to evaluate the efficacy of this management approach.","PeriodicalId":19263,"journal":{"name":"North American Journal of Fisheries Management","volume":"25 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139498446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}