Marine and Coastal Fisheries最新文献

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Spatiotemporal Variation in Distribution, Size, and Relative Abundance within a Salish Sea Nearshore Forage Fish Community Salish海近岸饲料鱼群落分布、大小和相对丰度的时空变化
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-04-12 DOI: 10.1002/mcf2.10202
Kinsey E. Frick, Anna N. Kagley, Kurt L. Fresh, Jameal F. Samhouri, Larry S. Ward, Justin T. Stapleton, Andrew O. Shelton
{"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":null,"pages":null},"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}
引用次数: 1
Discard Mortality of Sea Scallops Placopecten magellanicus Following Capture and Handling in the U.S. Dredge Fishery 美国疏浚渔业捕获和处理后海扇贝的丢弃死亡率
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-04-05 DOI: 10.1002/mcf2.10197
David B. Rudders, Hugues P. Benoît, Ryan J. Knotek, John A. Mandelman, Sally A. Roman, James A. Sulikowski
{"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":null,"pages":null},"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}
引用次数: 1
Resilience of Black Sea Bass Embryos to Increased Levels of Carbon Dioxide 黑海鲈鱼胚胎对增加的二氧化碳水平的恢复能力
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-03-09 DOI: 10.1002/mcf2.10200
Shannon L. Meseck, Dylan H. Redman, Renee Mercaldo-Allen, Paul Clark, Julie M. Rose, Dean M. Perry
{"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 (ρCO<sub>2</sub>) 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 ρCO<sub>2</sub> (microatmospheres [μatm]) for 48 h during seasonal experiments conducted in 2013–2015 to compare embryonic response among multiple broodstocks. The relationship between ρCO<sub>2</sub> concentration and hatching success was inconsistent among years, with a nonlinear, inverse relationship noted in 2014 only, explaining 13% of observed variance. Conversely, ρCO<sub>2</sub> was a good predictor of unhatched BSB embryos after 48 h for all years combined (39%) and for 2013 (38%). The ρCO<sub>2</sub> 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 ρCO<sub>2</sub> 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":null,"pages":null},"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}
引用次数: 0
Population Structure and Regional Connectivity of Young Snowy Grouper in the Gulf of Mexico and Western Atlantic Ocean 墨西哥湾和西大西洋幼雪石斑鱼种群结构和区域连通性
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-03-09 DOI: 10.1002/mcf2.10199
Phillip J. Sanchez, Michelle Zapp Sluis, Jeffrey Pinsky, Nathaniel R. Miller, Jay R. Rooker
{"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 (<sup>7</sup>Li, <sup>24</sup>Mg, <sup>55</sup>Mn, <sup>88</sup>Sr, and <sup>137</sup>Ba) and stable isotope (δ<sup>13</sup>C and δ<sup>18</sup>O), 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":null,"pages":null},"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}
引用次数: 0
Environmental Factors and Stock Abundance Influence Year-Class Strength of Spotted Seatrout at Cedar Key, Florida 环境因素和种群丰度对佛罗里达雪松基斑点斑鲷年级强度的影响
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-03-03 DOI: 10.1002/mcf2.10201
Samara Nehemiah, David Chagaris, Susan Lowerre-Barbieri, Micheal Allen
{"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":null,"pages":null},"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}
引用次数: 2
Economic Values of Potential Regulation Changes for the Southern Flounder Fishery in Louisiana 路易斯安那州南部比目鱼渔业潜在法规变化的经济价值
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-03-03 DOI: 10.1002/mcf2.10195
David R. Smith, Stephen R. Midway, Rex H. Caffey, Jerrod M. Penn
{"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":null,"pages":null},"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}
引用次数: 4
Phenological Variation in Spring Migration Timing of Adult Alewife in Coastal Massachusetts 马塞诸塞州沿海成年大灰鲱春季迁徙时间的物候变化
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-03-02 DOI: 10.1002/mcf2.10198
Rebecca M. Dalton, John J. Sheppard, John T. Finn, Adrian Jordaan, Michelle D. Staudinger
{"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":null,"pages":null},"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}
引用次数: 3
Understanding Recreational Angler Diversity and Its Potential Implications on Promoting Responsible Fishing Practices in a Multispecies Gulf of Maine Fishery 了解休闲垂钓者多样性及其对促进缅因州多物种海湾渔业负责任捕捞行为的潜在影响
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-02-26 DOI: 10.1002/mcf2.10196
Connor W. Capizzano, Emily A. Jones, Steven B. Scyphers, Douglas R. Zemeckis, Andy J. Danylchuk, John W. Mandelman
{"title":"Understanding Recreational Angler Diversity and Its Potential Implications on Promoting Responsible Fishing Practices in a Multispecies Gulf of Maine Fishery","authors":"Connor W. Capizzano,&nbsp;Emily A. Jones,&nbsp;Steven B. Scyphers,&nbsp;Douglas R. Zemeckis,&nbsp;Andy J. Danylchuk,&nbsp;John W. Mandelman","doi":"10.1002/mcf2.10196","DOIUrl":"10.1002/mcf2.10196","url":null,"abstract":"<p>Recent work in the Gulf of Maine multispecies recreational fishery has established responsible fishing practices that anglers can use to reduce bycatch and the discard mortality of three key groundfish species. However, anglers represent a diverse stakeholder group whose backgrounds and experiences may influence how they receive, support, and adopt responsible fishing practices that aim to sustain catch-and-release angling opportunities. We therefore surveyed Gulf of Maine recreational anglers who target groundfish, including Atlantic Cod <i>Gadus morhua</i>, Haddock <i>Melanogrammus aeglefinus</i>, and Cusk <i>Brosme brosme</i>, to assess whether differences among anglers influenced how likely anglers were to voluntarily adopt or consider adopting responsible fishing practices and which information channels they used to obtain such information. By broadly sampling Gulf of Maine recreational fishing license holders via an online survey, we collected responses from 306 respondents who targeted groundfish in some capacity; several topics, including fishing activity and experience, responsible fishing practices, information channels, and sociodemographics, were addressed in the survey. A latent class cluster analysis found that respondents who participate in this regional fishery can be broadly categorized into three distinct classes (Striped Bass [<i>Morone saxatilis</i>] Enthusiasts, All-rounders, and Offshore Groundfishers) from their primary fishing mode and target species. Despite the presence of these latent classes, class membership did not affect how likely respondents were to voluntarily adopt or consider adopting species-specific fishing practices from previous scientific investigations. However, class membership was observed to influence how respondents used information channels to receive angling information, with Offshore Groundfishers relying more often on captains and crew than the other classes. Therefore, to promote responsible fishing practices alongside regulations, we recommend that fishery managers use a mixed outreach program to effectively communicate and engage with this portion of the community until more directed studies can be conducted.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10196","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49120189","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}
引用次数: 1
Spatiotemporal Variations in Trace Element Compositions in Pollock Populations under the Influence of Coastal Norwegian Salmon Farms 挪威沿海鲑鱼养殖场影响下鳕鱼种群微量元素组成的时空变化
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-02-20 DOI: 10.1002/mcf2.10193
Linda Fourdain, Pablo Arechavala-Lopez, Ingebrigt Uglem, Bjørn-Steinar Sæther, Pablo Sanchez-Jerez
{"title":"Spatiotemporal Variations in Trace Element Compositions in Pollock Populations under the Influence of Coastal Norwegian Salmon Farms","authors":"Linda Fourdain,&nbsp;Pablo Arechavala-Lopez,&nbsp;Ingebrigt Uglem,&nbsp;Bjørn-Steinar Sæther,&nbsp;Pablo Sanchez-Jerez","doi":"10.1002/mcf2.10193","DOIUrl":"10.1002/mcf2.10193","url":null,"abstract":"<p>Pollock <i>Pollachius virens</i> (also known as Saithe) modify their feeding habits when including in their diet uneaten feed pellets from salmon aquaculture sea cages. To determine the influence of salmon farms on Pollock, multivariate and univariate analyses were conducted on the trace element signatures from muscle and liver tissues. Sample fish were caught in the vicinity of salmon farms and in control areas (&gt;3-km distance from the farms) on the coast of Hitra Island (western Norway) over two consecutive years (2012 and 2013). The hepatosomatic index was calculated as a proxy of fish body condition and was higher in Pollock captured near the salmon farms in both years. Variations in specific trace element profiles revealed the influence of farming on the Pollock assemblages (i.e., arsenic, manganese, and copper in muscle; vanadium and manganese in liver). Differences in element composition between sampling years were notable and may, in addition to influence from salmon feed, reflect temporal variation in Pollock migrations or natural food availability. Multivariate analyses of each sampling year showed significant differences in trace element composition of both tissue types among the Pollock groups. Therefore, trace element assessment is a potential tool for determining the influence of aquaculture on Pollock populations, although other natural sources of variation must be taken into account when considering future aquaculture and fishery management strategies.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10193","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44013003","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}
引用次数: 1
Adaptive Management in Practice and the Problem of Application at Multiple Scales—Insights from Oyster Reef Restoration on Florida’s Gulf Coast 实践中的适应性管理与多尺度应用问题——来自佛罗里达海湾沿岸牡蛎礁恢复的启示
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-02-08 DOI: 10.1002/mcf2.10192
W. E. Pine III, F. A. Johnson, P. C. Frederick, L. G. Coggins
{"title":"Adaptive Management in Practice and the Problem of Application at Multiple Scales—Insights from Oyster Reef Restoration on Florida’s Gulf Coast","authors":"W. E. Pine III,&nbsp;F. A. Johnson,&nbsp;P. C. Frederick,&nbsp;L. G. Coggins","doi":"10.1002/mcf2.10192","DOIUrl":"10.1002/mcf2.10192","url":null,"abstract":"<p>Adaptive management has been adopted as the standard approach to inform the multi-billion-dollar post-Deepwater Horizon coastal restoration programs in the Gulf of Mexico. An adaptive management process can help restoration projects at multiple spatial scales—from local shorelines to entire ecosystems—by identifying critical uncertainties and guiding restoration actions away from trial and error and toward an evidence-based approach. Based on our experiences, we identify challenges that must be overcome in developing large-scale adaptive management in the Gulf of Mexico. We demonstrate how the likelihood of restoration success for eastern oyster <i>Crassostrea virginica</i> and other resources could increase through (1) better matching monitoring efforts and funding with on-the-ground restoration efforts and (2) coordinating similar research projects at multiple scales to share challenges, solutions, and knowledge by creating spatially and temporally replicated restoration projects to identify best restoration practices. We agree with recent U.S. National Academy of Science assessments that adaptive management offers the best framework to guide restoration in the Gulf of Mexico, but we challenge practitioners, policymakers, and managers to recognize the need for strong leadership to implement this framework as originally proposed (but rarely practiced), so that opportunities for learning are not lost.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10192","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41749263","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}
引用次数: 5
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