Marine and Coastal Fisheries最新文献

{"title":"Examining Epibenthic Assemblages Associated with Artificial Reefs Using a Species Archetype Approach","authors":"Haolin Yu, Guangjie Fang, K. Rose, Yanli Tang, Xiefa Song","doi":"10.1002/mcf2.10206","DOIUrl":"https://doi.org/10.1002/mcf2.10206","url":null,"abstract":"","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44708394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kit‐Based Sampling by Trained Fishers Yields Successful DNA Identification of Depredating Shark Species in the Marianas","authors":"Maryann K. Webb, Derek Kraft, Madison N. Hampp, C. Meyer","doi":"10.1002/mcf2.10204","DOIUrl":"https://doi.org/10.1002/mcf2.10204","url":null,"abstract":"","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46392361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vertical Line Requirements and North Atlantic Right Whale Entanglement Risk Reduction for the Gulf of Maine American Lobster Fishery","authors":"Nathaniel Willse,&nbsp;Erin Summers,&nbsp;Yong Chen","doi":"10.1002/mcf2.10203","DOIUrl":"10.1002/mcf2.10203","url":null,"abstract":"<p>In the U.S. western Atlantic Ocean, North Atlantic right whales <i>Eubalaena glacialis</i> are subject to gear entanglement in fixed-gear vertical line fisheries, with mortality risk increasing with line strength and spatial density. U.S. federal management agencies have mandated vertical line strength limits (235.033-kg-m [1,700-ft-lb] breaking strength) to curtail the injury and mortality risk that entanglement poses to right whales. Limiting the strength of vertical lines used in the trap fishery for American lobster <i>Homarus americanus</i>, however, could negatively impact the economic resilience of New England fishing communities if it forces the purchase of new equipment or increases the incidence of break-offs and lost gear. We provide a novel look at the spatially distinct vertical line strength requirements for the Maine American lobster trap fishery. The hauling load requirements of the fishery were modeled using measurements of strain put on vertical lines used in typical lobster trap operations to determine the minimum strength necessary to fish safely and avoid dangerous line breaks. New regulations on minimum trawl lengths (number of traps fished per vertical line) taking effect in 2022 will cause increases in lobster fishery vertical line loads across all fishing grounds, considerably increasing with depth and distance from shore. Our models indicated that inshore areas can be safely fished with vertical lines within the recommended whale-safe 235.033-kg-m (1,700-ft-lb) breaking strength specification, whereas the offshore lobster fishery will need a suite of measures beyond line strength reductions to reduce entanglement risk and mortality of right whales. We provide guidelines for the minimum line strength necessary for fishery operations, which can be used to inform management goals that balance the need for a sustainable lobster fishery and the conservation of right whales.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"14 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10203","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41328049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Spatiotemporal Variation in Distribution, Size, and Relative Abundance within a Salish Sea Nearshore Forage Fish Community","authors":"Kinsey E. Frick,&nbsp;Anna N. Kagley,&nbsp;Kurt L. Fresh,&nbsp;Jameal F. Samhouri,&nbsp;Larry S. Ward,&nbsp;Justin T. Stapleton,&nbsp;Andrew O. Shelton","doi":"10.1002/mcf2.10202","DOIUrl":"10.1002/mcf2.10202","url":null,"abstract":"<p>Forage fish are schooling species commonly occurring in both offshore pelagic and nearshore coastal habitats. Beyond use by some species for spawning, the dynamics of nearshore habitat use are not well understood. The objective of our study was to evaluate the spring–summer dynamics of forage fish occurrence in nearshore habitats of the Strait of Juan de Fuca, Washington. We suspected that habitat changes resulting from removal of two large dams on the Elwha River (2009–2011) may have altered fish presence and abundance. Monthly beach seine sampling in four regions along 40 km of shoreline was conducted from April to September between 2006 and 2019. We caught nearly 600,000 fish, comprising 82 different species. Nine species of forage fish accounted for 81.7% of all fishes caught; most were classified as postlarvae and juveniles based on size. There were spatial differences in the forage fish assemblage between two of our sites but no discernable year effects and no obvious impact of dam removal on forage community composition. Three species represented 78.8% of the catch: Pacific Herring <i>Clupea pallasii</i>, Pacific Sand Lance <i>Ammodytes hexapterus</i>, and Surf Smelt <i>Hypomesus pretiosus</i>. We used a Bayesian generalized linear mixed model to evaluate spatial and temporal variability in the probability of occurrence of these species. Each species exhibited a unique pattern of intra-annual, interannual, and regional fluctuations. Pacific Herring occurrence progressively increased monthly, Pacific Sand Lance occurrence decreased, and Surf Smelt probability of occurrence peaked in June. Temporal variations in distribution and abundance of these species are likely driven by life history differences and biological requirements. We speculate that specific characteristics of each region, including proximity to spawning areas, spawn timing, extant current patterns, and ecosystem processes, drove variations in distribution between species.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"14 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10202","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47377191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Discard Mortality of Sea Scallops Placopecten magellanicus Following Capture and Handling in the U.S. Dredge Fishery","authors":"David B. Rudders,&nbsp;Hugues P. Benoît,&nbsp;Ryan J. Knotek,&nbsp;John A. Mandelman,&nbsp;Sally A. Roman,&nbsp;James A. Sulikowski","doi":"10.1002/mcf2.10197","DOIUrl":"10.1002/mcf2.10197","url":null,"abstract":"<p>Discard mortality can represent a potentially significant source of uncertainty for both stock assessments and fishery management measures. While the family Pectinidae is considered to be robust to the capture and handling process, understanding species-specific discard mortality rates is critical to characterize both population dynamics and to develop regulatory measures to meet management objectives. The discard mortality rate for the U.S. dredge fishery of sea scallop <i>Placopecten magellanicus</i> was estimated empirically via a retention study aboard industry vessels under commercial conditions. Over 16,000 sea scallops were assessed via a composite index of scallop vitality that consisted of semiqualitative measures of both overt trauma (shell damage) and response to stimuli. Results indicate that overall sea scallop discard mortality was 21% and consistent with the values currently assumed in the stock assessment. Survival mixture models support the utility of a simple metric of physical trauma as an effective predictor of mortality. Exposure time was also identified as a positively correlated factor that was important in describing the discard mortality process. Application of experimental results highlight the need to consider some operational characteristics of the fishery to reduce potential discard mortality.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"14 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10197","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46910454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Resilience of Black Sea Bass Embryos to Increased Levels of Carbon Dioxide","authors":"Shannon L. Meseck,&nbsp;Dylan H. Redman,&nbsp;Renee Mercaldo-Allen,&nbsp;Paul Clark,&nbsp;Julie M. Rose,&nbsp;Dean M. Perry","doi":"10.1002/mcf2.10200","DOIUrl":"10.1002/mcf2.10200","url":null,"abstract":"<p>After a decade of research on how embryonic fish will respond to the increased dissolved carbon dioxide (ρCO₂) levels predicted for the next century, no uniform response to near future acidification has been observed among marine species. We exposed Black Sea Bass <i>Centropristis striata</i> (BSB) embryos to varied levels of ρCO₂ (microatmospheres [μatm]) for 48 h during seasonal experiments conducted in 2013–2015 to compare embryonic response among multiple broodstocks. The relationship between ρCO₂ concentration and hatching success was inconsistent among years, with a nonlinear, inverse relationship noted in 2014 only, explaining 13% of observed variance. Conversely, ρCO₂ was a good predictor of unhatched BSB embryos after 48 h for all years combined (39%) and for 2013 (38%). The ρCO₂ concentration was a good predictor of the frequency of vertebral column anomalies for individual years (2013: 40%; 2014: 12%; 2015: 38%) but not when data were pooled for all years. In 2013 and 2015, vertebral column anomalies were relatively consistent below 1,000 μatm and were elevated above that threshold. Preliminary results suggest that BSB embryos may demonstrate resilience to future ρCO₂ levels, but the results also highlight the challenges associated with drawing broad conclusions given observed variability in results obtained from different broodstocks and study years.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"14 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10200","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47677749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Population Structure and Regional Connectivity of Young Snowy Grouper in the Gulf of Mexico and Western Atlantic Ocean","authors":"Phillip J. Sanchez,&nbsp;Michelle Zapp Sluis,&nbsp;Jeffrey Pinsky,&nbsp;Nathaniel R. Miller,&nbsp;Jay R. Rooker","doi":"10.1002/mcf2.10199","DOIUrl":"10.1002/mcf2.10199","url":null,"abstract":"<p>Snowy Grouper <i>Hyporthodus niveatus</i> are long-lived, slow-growing demersal fish that occur throughout most of the western Atlantic Ocean. Currently, Snowy Grouper in U.S. territorial waters are managed as two stocks, one along the eastern Atlantic coast and one in the Gulf of Mexico (GoM), though population connectivity throughout the region is unknown. The population structure of juvenile Snowy Grouper in U.S. territorial waters was assessed with otolith chemistry analysis, both trace element (⁷Li, ²⁴Mg, ⁵⁵Mn, ⁸⁸Sr, and ¹³⁷Ba) and stable isotope (δ¹³C and δ¹⁸O), from three life stages (core [first-year deposition], edge [most recent deposition], and life [mean of lifetime deposition]) across four geographic regions (northwest GoM, northeast GoM, southeast GoM, and U.S. East Coast). Dissimilar element : Ca signatures were evident across regions for all three life history stages, with regional patterns in individual markers following expected differences in environmental chemistry based on the geographic location of dominant mesoscale features (Mississippi and Atchafalaya River system, Loop Current, and Gulf Stream) and associated physicochemical conditions. Moderate classification success of Snowy Grouper to collection region with lifetime signatures indicated that the population along the U.S. East Coast experienced different physicochemical conditions than individuals inhabiting the GoM. The close adherence in regional patterns of otolith chemistry with expected environmental chemistry indicates that movement of individuals is limited and population connectivity constrained in U.S. territorial waters.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"14 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10199","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42180859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Environmental Factors and Stock Abundance Influence Year-Class Strength of Spotted Seatrout at Cedar Key, Florida","authors":"Samara Nehemiah,&nbsp;David Chagaris,&nbsp;Susan Lowerre-Barbieri,&nbsp;Micheal Allen","doi":"10.1002/mcf2.10201","DOIUrl":"10.1002/mcf2.10201","url":null,"abstract":"<p>Environmental pressures can influence recruitment of estuarine fishes by impacting growth and survival of juveniles as well as adult habitat use and behavior. Identifying potential drivers of year-class strength is an important tool for assessing stock health and implementing management decisions. The goal of this study was to determine how environmental factors and adult stock influence trends in recruitment of Spotted Seatrout <i>Cynoscion nebulosus</i> in Cedar Key, Florida. Juvenile indices of abundance were generated using sampling data from the Florida Fish and Wildlife Conservation Commission’s Fisheries-Independent Monitoring program. Young-of-the-year indices of abundance suggested that annual recruitment was variable in this system and declined throughout the majority of the 1996–2018 time series. Adult abundance and water temperature in the spawning season were the most significant variables in predicting Spotted Seatrout recruitment, and both had positive relationships with recruitment. Salinity and river discharge were not significant environmental variables in predicting year-class strength of Spotted Seatrout in this study. Our results indicated that recruitment was associated with interannual changes in water temperature and adult abundance, which could be used to explore how Spotted Seatrout recruitment dynamics could vary for stock assessments, for management decisions, and as a result of warming waters due to climate change.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"14 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10201","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47233999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Economic Values of Potential Regulation Changes for the Southern Flounder Fishery in Louisiana","authors":"David R. Smith,&nbsp;Stephen R. Midway,&nbsp;Rex H. Caffey,&nbsp;Jerrod M. Penn","doi":"10.1002/mcf2.10195","DOIUrl":"10.1002/mcf2.10195","url":null,"abstract":"<p>Population declines of Southern Flounder <i>Paralichthys lethostigma</i> have reached levels that present management concerns in Louisiana waters. As the need for regulatory change in this fishery approaches, we conducted a survey to better characterize the Southern Flounder fishery in Louisiana, with two primary goals: (1) determining a value for the economic welfare provided by the fishery and (2) evaluating how this value might change in response to hypothetical regulation scenarios. Based on total travel cost estimates, the aggregate economic value of the Southern Flounder fishery among coastal Louisiana anglers reached an estimated US$119.7 million; however, this value primarily stems from anglers targeting multiple species during their coastal angling trips, as the value of the Southern Flounder fishery while only accounting for anglers that solely targeted this species amounted to an estimated $8.4 million. Respondents revealed strong levels of supportiveness for all regulation scenarios that increased limitations on allowable harvest for Southern Flounder. None of the hypothetical regulation scenarios led to significant behavioral responses in the expected number of coastal angling trips taken, leaving the economic value of coastal Louisiana fisheries unchanged. The results of our study illustrate the relatively inconsequential nature of Southern Flounder regulations upon the behavior of coastal Louisiana anglers. The information gathered by this survey can be used to guide the decision-making process in developing a sustainable management strategy that is supported by stakeholders and that keeps the strong economic values of coastal Louisiana fisheries intact.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"14 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10195","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47562536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Phenological Variation in Spring Migration Timing of Adult Alewife in Coastal Massachusetts","authors":"Rebecca M. Dalton,&nbsp;John J. Sheppard,&nbsp;John T. Finn,&nbsp;Adrian Jordaan,&nbsp;Michelle D. Staudinger","doi":"10.1002/mcf2.10198","DOIUrl":"10.1002/mcf2.10198","url":null,"abstract":"<p>The timing of biological events in plants and animals, such as migration and reproduction, is shifting due to climate change. Anadromous fishes are particularly susceptible to these shifts as they are subject to strong seasonal cycles when transitioning between marine and freshwater habitats to spawn. We used linear models to determine the extent of phenological shifts in adult Alewife <i>Alosa pseudoharengus</i> as they migrated from ocean to freshwater environments during spring to spawn at 12 sites along the northeastern USA. We also evaluated broadscale oceanic and atmospheric drivers that trigger their movements from offshore to inland habitats, including sea surface temperature, North Atlantic Oscillation index, and Gulf Stream index. Run timing metrics of initiation, median (an indicator of peak run timing), end, and duration were found to vary among sites. Although most sites showed negligible shifts towards earlier timing, statistically significant changes were detected in three systems. Overall, winter sea surface temperature, spring and fall transition dates, and annual run size were the strongest predictors of run initiation and median dates, while a combination of within-season and seasonal-lag effects influenced run end and duration timing. Disparate results observed across the 12 spawning runs suggest that regional environmental processes were not consistent drivers of phenology and local environmental and ecological conditions may be more important. Additional years of data to extend time series and monitoring of Alewife timing and movements in nearshore habitats may provide important information about staging behaviors just before adults transition between ocean and freshwater habitats.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"14 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10198","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45588220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}