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Potential Repercussions of Offshore Wind Energy Development in the Northeast United States for the Atlantic Surfclam Survey and Population Assessment 美国东北部海上风能开发对大西洋蛤调查和种群评估的潜在影响
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2023-02-27 DOI: 10.1002/mcf2.10228
Sarah Borsetti, Daphne M. Munroe, Andrew M. Scheld, Eric N. Powell, John M. Klinck, Eileen E. Hofmann
{"title":"Potential Repercussions of Offshore Wind Energy Development in the Northeast United States for the Atlantic Surfclam Survey and Population Assessment","authors":"Sarah Borsetti,&nbsp;Daphne M. Munroe,&nbsp;Andrew M. Scheld,&nbsp;Eric N. Powell,&nbsp;John M. Klinck,&nbsp;Eileen E. Hofmann","doi":"10.1002/mcf2.10228","DOIUrl":"10.1002/mcf2.10228","url":null,"abstract":"<p>The Atlantic surfclam <i>Spisula solidissima</i> fishery, which spans the U.S. Northeast continental shelf, is among the most exposed to offshore wind energy development impacts because of the overlap of fishing grounds with wind energy lease areas, the hydraulic dredges used by the fishing vessels, and the location of vessel home ports relative to the fishing grounds. The Atlantic surfclam federal assessment survey is conducted using a commercial fishing vessel in locations that overlap with the offshore wind energy development. Once wind energy turbines, cables, and scour protection are installed, survey operations within wind energy lease areas may be curtailed or eliminated due to limits on vessel access, safety requirements, and assessment survey protocols. The impact of excluding the federal assessment survey from wind energy lease areas was investigated using a spatially explicit, agent-based modeling framework that integrates Atlantic surfclam stock biology, fishery captain and fleet behavior, and federal assessment survey and management decisions. Simulations were designed to compare assessment estimates of spawning stock biomass (SSB) and fishing mortality (<i>F</i>) for scenarios that excluded the survey from (1) wind energy lease areas or (2) wind energy lease areas and potential wind energy lease areas (“call areas”). For the most restricted scenario, the simulated stock assessment estimated 17% lower SSB relative to an unrestricted survey, placing it below the SSB target. The simulated <i>F</i> increased by 7% but was still less than the accepted <i>F</i> threshold. Changes in biological reference points were driven by the inability to access the Atlantic surfclam biomass within the wind energy lease areas. Deviations in reference points reflected the proportion of the population excluded from the survey. Excluding the Atlantic surfclam assessment surveys from the regions designated for offshore wind development can alter long-term stock assessments by increasing uncertainty in metrics that are used to set fishing quotas.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10228","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45927537","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
Fish Assemblages in the Penobscot River: A Decade after Dam Removal 佩诺布斯科特河的鱼类群落:大坝拆除后的十年
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2023-02-27 DOI: 10.1002/mcf2.10227
Kory A. Whittum, Joseph D. Zydlewski, Stephen M. Coghlan Jr, Daniel B. Hayes, Jonathan Watson, Ian Kiraly
{"title":"Fish Assemblages in the Penobscot River: A Decade after Dam Removal","authors":"Kory A. Whittum,&nbsp;Joseph D. Zydlewski,&nbsp;Stephen M. Coghlan Jr,&nbsp;Daniel B. Hayes,&nbsp;Jonathan Watson,&nbsp;Ian Kiraly","doi":"10.1002/mcf2.10227","DOIUrl":"10.1002/mcf2.10227","url":null,"abstract":"<p>The Penobscot River Restoration Project in Maine was a large river rehabilitation project that culminated in the removal of the two lowermost dams and improvements to fish passage on several remaining dams. Fish assemblages were surveyed for 3 years prior to rehabilitation, 3 years after rehabilitation, and 8 years after rehabilitation. Approximately 475 km of shoreline were sampled via boat electrofishing, yielding 133,394 individual fish of 41 species. The greatest shifts in assemblage structure occurred immediately after dam removal in formerly impounded sections, with an increased prevalence of riverine and migratory species. Long-term sampling documented changes within tributaries and tidally influenced river segments, where large schools of adult and young-of-the-year alosines increased in abundance. Upstream of the lowermost dam, the river remains dominated by lacustrine species, while adult anadromous fishes continue to be most abundant immediately downstream of the lowermost dam. Our results provide increased evidence that dam removals result in altered fish assemblages, which are now dominated by riverine and anadromous species in previously impounded habitats. Alosines in the Penobscot River have exhibited the greatest long-term response to river restoration efforts.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10227","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44511509","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
Reviewer Acknowledgments 评论家致谢
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2023-01-10 DOI: 10.1002/mcf2.10229
{"title":"Reviewer Acknowledgments","authors":"","doi":"10.1002/mcf2.10229","DOIUrl":"https://doi.org/10.1002/mcf2.10229","url":null,"abstract":"<p>The editors and editorial board thank the following people who contributed technical reviews of manuscripts submitted to <i>Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science</i> during the year ending November 30, 2022.</p><p>Grant Adams</p><p>Matthew Ajemian</p><p>Paula Alvarez</p><p>Joel Anderson</p><p>Matthew Baker</p><p>Hugues Benoit</p><p>David Bethoney</p><p>Jason Boucher</p><p>Jon Brodziak</p><p>David Bryan</p><p>Sarah Burnsed</p><p>Jessica Carroll</p><p>Grace Casselberry</p><p>Kyle Cassidy</p><p>Peter Chase</p><p>Rosario Dominguez-Petit</p><p>Ralf Döring</p><p>J. Drymon</p><p>Jeffrey Duda</p><p>Syma Ebbin</p><p>Jessica Farley</p><p>Marko Freese</p><p>Kevin Friedland</p><p>James Gartland</p><p>Yi Gong</p><p>Kathryn Guindon</p><p>Steve Haeseker</p><p>Brianna Haugen</p><p>Danielle Haulsee</p><p>Roger Hewitt</p><p>Crystal Hightower</p><p>Kim Holland</p><p>Brian Hooker</p><p>Kelsey James</p><p>Brandon Jensen</p><p>Teresa Johnson</p><p>Adrian Jordaan</p><p>Junita Karlsen</p><p>Krystle Keller</p><p>David Kimbro</p><p>Jeff Kneebone</p><p>Ryan Knotek</p><p>Megan La Peyre</p><p>Laura Lee</p><p>Rosangela Lessa</p><p>Karin Limburg</p><p>Douglas Lipton</p><p>Pengfei Liu</p><p>Julia Livermore</p><p>Josep Lloret</p><p>Richard McBride</p><p>Christopher McGuire</p><p>Montana McLean</p><p>Anna Mercer</p><p>Rebecca Miller</p><p>Timothy Miller</p><p>Michael J. Miller</p><p>Jason Morson</p><p>Daphne Munroe</p><p>Benjamin Nelson</p><p>Gary Nelson</p><p>Matthew Ogburn</p><p>Casey O'Hara</p><p>Kenneth Oliveira</p><p>Magdalene Papatheodoulou</p><p>Daryl Parkyn</p><p>Maria Grazia Pennino</p><p>George Pess</p><p>Joshua Raabe</p><p>Michael Rasser</p><p>Rick Rideout</p><p>Daniela Rosa</p><p>Ilana Rosental Zalmon</p><p>Valerie Rountree</p><p>Peter Rubec</p><p>Fran Saborido-Rey</p><p>Fred Scharf</p><p>Andrew Scheld</p><p>Tomas Schmidt</p><p>David Secor</p><p>Nicholas Sisson</p><p>Kathryn Sobocinski</p><p>Helena Solman</p><p>Josefin Sundin</p><p>Fasil Taddese</p><p>Jonna Tomkiewicz</p><p>Jeremy Vaudo</p><p>Verena Wang</p><p>Joseph Watson</p><p>David Welch</p><p>Chantell R. Wetzel</p><p>Will White</p><p>Michael Wilberg</p><p>Binduo Xu</p><p>Lei Yang</p><p>Ellen Yasumiishi</p><p>Noelle Yochum</p><p>Viviane Zulian</p><p>Joseph Zydlewski</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10229","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137508109","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
Higher Early Marine Mortality of Steelhead Associated with Releases of Hatchery Coho Salmon but Not Chinook Salmon 放养Coho Salmon而非Chinook Salmon会增加Steelhead的早期海洋死亡率
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-12-28 DOI: 10.1002/mcf2.10225
Michael J. Malick, Megan E. Moore, Barry A. Berejikian
{"title":"Higher Early Marine Mortality of Steelhead Associated with Releases of Hatchery Coho Salmon but Not Chinook Salmon","authors":"Michael J. Malick,&nbsp;Megan E. Moore,&nbsp;Barry A. Berejikian","doi":"10.1002/mcf2.10225","DOIUrl":"10.1002/mcf2.10225","url":null,"abstract":"<p>Understanding the drivers of mortality during critical life history periods is an important part of increasing our capacity to rebuild depressed salmonid populations. For threatened steelhead <i>Oncorhynchus mykiss</i> in Puget Sound, Washington, early marine predation has been implicated as a key source of mortality. Yet, the agents that mediate predation pressure are poorly understood. In this study, we characterize abundances of juvenile Coho Salmon <i>O. kisutch</i> and Chinook Salmon <i>O. tshawytscha</i> in Puget Sound and relate these abundance patterns to weekly steelhead survival to better understand whether pulses of hatchery-released salmonids mediate steelhead survival. We found that weekly abundances of hatchery Coho Salmon and Chinook Salmon smolts vary by several orders of magnitude across weeks, indicating that large resource pulses are available to salmonid predators. We further found that weekly steelhead survival was significantly negatively related to abundances of hatchery-released Coho Salmon but not Chinook Salmon, which had considerably smaller body sizes than both Coho Salmon and steelhead smolts. Together, our results suggest that releases of Coho Salmon into Puget Sound mediate mortality of steelhead smolts, possibly via increased predation pressure by shared predators.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10225","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41947872","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
Physiological and Behavioral Effects of Angling Stress on Kelp Bass, an Important Game Fish in Southern California 钓鱼胁迫对南加州重要猎用鱼海带鲈鱼的生理和行为影响
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-11-23 DOI: 10.1002/mcf2.10224
Caitlin R. McGarigal, Christopher G. Lowe
{"title":"Physiological and Behavioral Effects of Angling Stress on Kelp Bass, an Important Game Fish in Southern California","authors":"Caitlin R. McGarigal,&nbsp;Christopher G. Lowe","doi":"10.1002/mcf2.10224","DOIUrl":"10.1002/mcf2.10224","url":null,"abstract":"<p>Game fish populations in North America face increasing pressure from recreational anglers, yet sublethal effects from mandatory catch-and-release regulations remain unknown for many targeted species. In southern California, Kelp Bass <i>Paralabrax clathratus</i> populations have significantly declined in recent decades, prompting changes in management and increasing release rates. To assess acute effects of current fishing regulations, we collaborated with recreational anglers to evaluate short-term, sublethal impacts of capture stress on Kelp Bass physiology and behavior. To evaluate the timeline and magnitude of physiological stress, blood samples were collected at time points (10–120 min) after angling and confinement and compared to control fish sampled in less than 3 min. Postrelease recovery was determined by comparing biomarker levels between control fish and recaptured fish that were rapidly sampled after a time at liberty ranging from 3 h to 186 d. Biomarker levels in fish recaptured multiple times were compared to previous samples to evaluate repetitive angling effects on physiological responses. Circulating cortisol, glucose, and lactate were elevated and steadily increased in the hour after capture, although angling duration and handling duration were not correlated with biomarker response. Fish size significantly affected fish stress, with larger fish experiencing less stress and rapid recovery within 24 h. Behavioral control fish, which ingested acoustic accelerometers hidden inside bait, exhibited strong diel activity that was reduced for 30 h in angled fish. Tracked individuals exhibited high individual variation in rate of movement and area use, with no noticeable postrelease impacts. Although this study found Kelp Bass to be resilient to angling stresses, evaluation of long-term effects from catch and release is warranted. This fishery may also benefit from slot limit regulations, improved angler engagement programs, and education on best practices that minimize fish stress during catch and release.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10224","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49074445","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
A Life History Study of Atlantic Wolffish Resolves Bias and Imprecision in Length- and Age-at-Maturity Schedules by Recognizing Abortive Maturation 大西洋狼鱼的生活史研究通过识别流产成熟解决了长度和成熟年龄表的偏差和不精确
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-10-26 DOI: 10.1002/mcf2.10222
Richard S. McBride, Elizabeth A. Fairchild, Yvonna K. Press, Scott P. Elzey, Charles F. Adams, Paul Bentzen
{"title":"A Life History Study of Atlantic Wolffish Resolves Bias and Imprecision in Length- and Age-at-Maturity Schedules by Recognizing Abortive Maturation","authors":"Richard S. McBride,&nbsp;Elizabeth A. Fairchild,&nbsp;Yvonna K. Press,&nbsp;Scott P. Elzey,&nbsp;Charles F. Adams,&nbsp;Paul Bentzen","doi":"10.1002/mcf2.10222","DOIUrl":"10.1002/mcf2.10222","url":null,"abstract":"<p>Stock assessments of U.S. Atlantic Wolffish <i>Anarhichas lupus</i> are hampered by a landings moratorium and low catches in fishery-independent surveys. Working with the commercial fishing industry, we collected hundreds of fish to overcome a lack of regionally specific life history information. Based on ages from sectioned otoliths, Atlantic Wolffish are long lived (maximum observed age: males = 31 years, females = 29 years). A Gompertz growth model showed that Atlantic Wolffish exhibit dimorphic growth—with larger males across all ages on average. Preliminary estimates of total mortality ranged from 0.15 to 0.21 and were lower than an estimate measured at the beginning of the moratorium. Based on gonad histology, a cohort of vitellogenic oocytes emerged in mature females by April and developed group synchronously to ovulate primarily in October. Skip spawning, which accounts for nonannual spawning, was observed in 5.6% of the mature females. Accounting for abortive maturation, a physiological event that delays functional maturation, improved precision and reduced bias of maturity estimates. The resulting median length at functional maturity was 53 cm total length (95% confidence interval = 49–56 cm), and the median age was 6.7 years old (6.2–7.2 years). These estimates are smaller and younger than elsewhere in the western North Atlantic Ocean, confirming that regionally specific maturity parameters are relevant when assessing reference points of the U.S. Atlantic Wolffish fishery.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10222","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46102185","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
Life History Assessment of Cusk, a Data-Poor Species, in U.S. Waters 美国水域一种数据贫乏的物种——鲈鱼的生活史评估
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-10-19 DOI: 10.1002/mcf2.10223
W. David McElroy, Emilee K. Tholke, Mark J. Wuenschel, Eric Robillard
{"title":"Life History Assessment of Cusk, a Data-Poor Species, in U.S. Waters","authors":"W. David McElroy,&nbsp;Emilee K. Tholke,&nbsp;Mark J. Wuenschel,&nbsp;Eric Robillard","doi":"10.1002/mcf2.10223","DOIUrl":"10.1002/mcf2.10223","url":null,"abstract":"<p>Cusk <i>Brosme brosme</i> are fished across the northern Atlantic Ocean, but even basic biological data are limited in part by their difficult-to-sample deep and structured habitats. We sampled fish from a variety of sources across the Gulf of Maine to provide comprehensive life history information (age and size at maturity, fecundity, sex ratio, growth) for this data-poor species considered by National Oceanic and Atmospheric Administration Fisheries as a species of concern. Gonad histology and gonadosomatic index data indicated peak spawning in late spring (May–June), with limited spawning activity into summer. The histologically derived length at 50% maturity for female Cusk was 39.5 cm TL. Fecundity varied from a quarter million to four million oocytes, with a positive allometry versus size indicating that larger females have proportionally higher fecundity than smaller females. Male Cusk had unusually low gonadal investment for a gadiform, and males of all sizes examined (down to 21 cm) had spermatozoa present. Male maturity was equivocal even when the relative proportions of sperm stages were quantified through image analysis of gonad histology; further anatomical and physiological studies of small males are required to assess functional maturity in male cusk. The sex ratio at length indicated more males at larger sizes, and males had faster growth and larger size at age than females. Condition patterns also suggested lower condition for females than males after spawning and generally less variable condition for males. Gonadal investment, relative condition, and growth patterns all suggest differences in energy allocation between the sexes. This data-poor species has an uncertain stock status in U.S. waters; therefore, the results of the current work provide important information to its management.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10223","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48490615","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
Effects of Altered Stock Assessment Frequency on the Management of a Large Coastal Shark 改变种群评估频率对大型海岸鲨鱼管理的影响
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-10-13 DOI: 10.1002/mcf2.10221
Cassidy D. Peterson, Michael J. Wilberg, Enric Cortés, Dean L. Courtney, Robert J. Latour
{"title":"Effects of Altered Stock Assessment Frequency on the Management of a Large Coastal Shark","authors":"Cassidy D. Peterson,&nbsp;Michael J. Wilberg,&nbsp;Enric Cortés,&nbsp;Dean L. Courtney,&nbsp;Robert J. Latour","doi":"10.1002/mcf2.10221","DOIUrl":"https://doi.org/10.1002/mcf2.10221","url":null,"abstract":"<p>Stock assessments are particularly resource-intensive processes. Demand for assessments typically exceeds capacity, stimulating interest in reducing stock assessment frequency for suitable species. Species with slow population growth rates, low economic importance, and low recruitment variability, like coastal sharks in the USA, have been identified as appropriate candidates for long-interim assessment periods. We conducted a Stock Synthesis–based management strategy evaluation with a threshold harvest rate control rule within the southeastern USA to assess the impact of stock assessment frequency for the slow-growing Sandbar Shark <i>Carcharhinus plumbeus</i>. Stock assessments for the Sandbar Shark in the southeastern USA have been conducted or updated every 4–6 years since 1998. The Sandbar Shark proved to be a particularly good candidate species for reduced assessment frequency, as noted by unaffected management procedure performance across interim periods of 1, 5, and 10 years. Management objectives, including probability of stock recovery, relative biomass level, cumulative U.S. commercial catch, and probability of overfishing, were minimally adversely impacted with interim periods equal to 15 years. Based on our findings, assessment frequency for large coastal shark species could reasonably be reduced in the future to once every 10 or more years without compromising management success.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10221","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137516538","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
Evaluation of Sampling Methods for Maturation Stage Determination in the European Eel Anguilla anguilla 欧洲鳗鲡成熟期测定取样方法的评价
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-10-10 DOI: 10.1002/mcf2.10219
Josefin Sundin, John Persson, Håkan Wickström, Niklas Sjöberg, Ola Renman, Stefan Skoglund
{"title":"Evaluation of Sampling Methods for Maturation Stage Determination in the European Eel Anguilla anguilla","authors":"Josefin Sundin,&nbsp;John Persson,&nbsp;Håkan Wickström,&nbsp;Niklas Sjöberg,&nbsp;Ola Renman,&nbsp;Stefan Skoglund","doi":"10.1002/mcf2.10219","DOIUrl":"10.1002/mcf2.10219","url":null,"abstract":"<p>Monitoring data is important in ecological research, but differences between and within areas or species in data collection methods could introduce bias in the analyses. Standardizing data collection is particularly important when monitoring migratory species that have a distribution that crosses several national borders. The European Eel <i>Anguilla anguilla</i> is an extreme example of such a species since it constitutes one stock across the entire distribution area. One important variable collected for the European Eel is maturation stage. This data is needed to monitor silver eel escapement to assess population trends. To determine maturation, data on length, weight, diameter of the eyes, and pectoral fin length are used to calculate Pankhurst eye index and Durif's silver index. In this study, we investigated effects of precision and interobserver variability on data collection relevant for maturation stage determination according to Pankhurst and Durif's indices. We found that eye diameter differed in size between the left and right eyes; however, the mean difference (0.19 mm) is probably an artifact of the large sample size (<i>n</i> = 16,977) and can be regarded as being within the measurement precision. Meanwhile, there was no significant difference in pectoral fin length. These results suggest that either side of the eel could be used without losing precision. Visually determined maturation stage classifications differed from those calculated with Pankhurst and Durif's indices but could still provide useful information; hence, it is recommended to collect this variable. Measurements performed using computer software generated greater precision than using calipers, which increased interobserver variability. Since the difference was relatively small and since computer analysis of images may not always be an option, measuring method can be decided based on the level of precision needed in each case. These suggested implementations can reduce observation bias and streamline the data collection used for stock assessments of the European Eel.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://afspubs.onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10219","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47009231","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
Influence of Hurricane Activity on Acoustic Array Efficiency: A Case Study of Red Snapper within an Artificial Reef Complex 飓风活动对声阵列效率的影响:以人工礁群内红鲷鱼为例
IF 1.7 3区 农林科学
Marine and Coastal Fisheries Pub Date : 2022-09-27 DOI: 10.1002/mcf2.10220
Kesley Gibson Banks, Matthew K. Streich, Judson M. Curtis, Gregory W. Stunz
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引用次数: 1
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