Marine and Coastal Fisheries最新文献

{"title":"Economic Impacts of Offshore Wind Farms on Fishing Industries: Perspectives, Methods, and Knowledge Gaps","authors":"Marina Chaji,&nbsp;Samantha Werner","doi":"10.1002/mcf2.10237","DOIUrl":"10.1002/mcf2.10237","url":null,"abstract":"<p>Offshore wind farms (OWFs) are rapidly developing as an alternative energy source globally and in the Greater Atlantic region of the United States. Despite the pace of development, there are still many uncertainties surrounding best practices in assessing the economic impacts of offshore wind on regional fishing industries. This work aims to provide an overview and assessment of industry perceptions, methods, results, and knowledge gaps pertaining to economic areas of concern related to interactions between OWFs and fishing industries in the region. We provide a compilation of studies focusing on industry perceptions and impacts of OWFs on the fishing industry, focusing on four key economic areas of interest: fuel expenditures; insurance costs; fishing industry revenues, income, and livelihoods; and fishing support businesses. Our findings suggest four overarching knowledge gap themes that persist across all economic areas of focus: (1) a lack of economic data or economically centered data collection efforts, (2) minimal works aiming to quantify the economic impacts of key areas of concern, (3) a lack of peer-reviewed models and methods in quantifying economic impacts, and (4) limited syntheses containing best practices or lessons learned associated with quantifying the comprehensive economic impacts posed by OWFs on fisheries. This article aims to build awareness in areas where interdisciplinary collaboration can take place as well as serve as a foundation for informing best practice guidance as it pertains to assessing economic impacts imposed by OWFs on the fishing industry.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"15 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10237","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45843133","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":"Demography of Oysters Pre- and Postcollapse in Apalachicola Bay, Florida, Using Stage-Based Counts","authors":"Fred A. Johnson,&nbsp;Edward V. Camp,&nbsp;Ryan Gandy,&nbsp;William E. Pine III","doi":"10.1002/mcf2.10244","DOIUrl":"10.1002/mcf2.10244","url":null,"abstract":"<p>The collapse of oyster populations and the fisheries they support has been a worldwide phenomenon, but studies of oyster demography in situ prior to and after the collapse have been rare. We used time series of stage-based counts of eastern oysters <i>Crassostrea virginica</i> in Apalachicola Bay, Florida, to help understand how abundance and demographic rates may have changed in the decade after the 2012 collapse relative to the period before the collapse. We relied on a Bayesian hierarchical model in which the latent stage structure of the oyster population (i.e., densities of spat, sublegal oysters, and legal oysters) was governed by a system process and where the count data represented summaries of that latent structure. Count data were sufficient to conduct this on two large oyster bars that had some of the highest precollapse oyster densities. We also examined nine other bars with less data for any temporal trends in postcollapse abundance that might be associated with recent restoration efforts. Among the 11 bars examined, oyster densities were often increasing prior to the collapse and were very low, without detectable trends, afterward. Based on our demographic analyses, mortality rates of Apalachicola Bay oysters in the decade after the collapse generally exceeded (often greatly so) those during the precollapse period for all oyster stages. On the other hand, spat settlement rates apparently were increasing prior to the collapse and remained high during the postcollapse period. Simulations of postcollapse demography suggest that without improved survival rates, further declines of the oyster population can be expected. We discuss these findings in light of ongoing restoration and management efforts and suggest ways in which rapid transitions to undesirable socio-ecological regimes might be avoided in the future.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"15 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10244","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45111124","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":"Effects of Estuarine Environmental Heterogeneity on the Habitat of Gobiidea Species Larvae","authors":"Lu Zhai,&nbsp;Zengguang Li,&nbsp;Rong Wan,&nbsp;Siquan Tian,&nbsp;Pengbo Song,&nbsp;Jun Lin","doi":"10.1002/mcf2.10241","DOIUrl":"10.1002/mcf2.10241","url":null,"abstract":"<p>In aquatic ecosystems around the world, gobies comprise one of the most diverse groups of fishes in estuaries. The Yangtze River estuary, the biggest estuary in the western Pacific, is a major habitat for larval gobies, with the peak spawning and breeding season occurring during late spring and summer. To investigate the adaptation mechanism of larval gobies to environmental factors, three models (a global generalized linear model, a generalized additive model, and a geographically weighted Poisson regression) were used to simulate and forecast the major habitat distributions of larval gobies based on the survey data from 2018 to 2020. Six species of gobies were studied: <i>Rhinogobius giurinu</i>, <i>Odontamblyopus rubicundus</i>, <i>Tridentiger barbatus</i>, <i>Parachaeturichthys polynema</i>, <i>Tridentiger trigonocephalus,</i> and <i>Trypauchen vagina</i>. The habitats for brackish species <i>T. barbatus</i> were mainly in freshwater (where, using the practical salinity scale, salinity is 0–1) of the south branch, whereas the marine species <i>P. polynema</i> was mainly caught in oligohaline waters (where salinity is 1–5) of the north branch. The other euryhaline species were near the exit of the north branch or dispersed throughout the surveyed region. Year, season, salinity, and sample location had significant effects (<i>P</i> &lt; 0.001) on determining the habitat distributions of larval gobies. The geographically weighted Poisson regression identified that the temperature, depth, distance from the coast, and chlorophyll <i>a</i> had a significant effect (<i>P</i> &lt; 0.001) on the local distribution of habitats. This work supplements information about the distribution of major habitats and their interactions with the environment for the ecologically important species of goby in the Yangtze estuary during the larval stage, and the conclusions provide a basis for the management of aquatic ecosystems and biological habitats.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"15 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10241","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41645076","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":"Minimally Invasive Collection of Biometric Data Including Maturation Stage on European Eel Using Photography","authors":"Leander Höhne,&nbsp;Jan-Dag Pohlmann,&nbsp;Marko Freese","doi":"10.1002/mcf2.10239","DOIUrl":"10.1002/mcf2.10239","url":null,"abstract":"<p>In response to the severe decline of the European Eel <i>Anguilla anguilla</i> stock in recent decades, various data frameworks and research efforts toward improved management rely on the availability of site-specific biometric data. At the same time, scientists are obligated to minimize the negative effects (stress, harm, and sacrifice) of their samplings on individuals and the population without compromising data quality. In-field methods for biometric measurements must be quick, precise, and practical for the user. Essential information that is typically required in (large-scale) eel monitoring programs includes body length, mass, sex, and maturation stage. As live eels are difficult to handle, individuals are typically anesthetized or killed (and sometimes stored frozen to postpone measurements) to obtain the necessary biometrics. The primary purpose of this paper was to explore the suitability of a nonlethal method based on photography for obtaining essential biometrics and maturation stage from live European Eels <i>A. anguilla</i> in a timely manner. In addition, we evaluated the relative accuracy of measuring the parameters that are necessary for assessing maturation stages in eels after defrosting and examined the necessity of correcting for potential shrinkage of eyes and pectoral fin. Both procedures were compared against a standard reference of measurements from freshly killed eels. We found that the minimally invasive method using alive measurements of eels' body length and mass together with digital measurements of eyes and pectoral fin from photographs had the highest agreement for maturation stage outcome with the fresh reference. Our results further reveal the necessity of correcting for shrinkage of eyes and pectoral fins (in addition to length and mass) after freezing to maximize reliability in stage classification. Consequently, we provide specialized formulae to apply shrinkage corrections for eye diameter and pectoral fin length.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"15 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10239","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43131548","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":"Postrelease Mortality of Angled Tarpon in Puerto Rico","authors":"Laura B. Horowitz,&nbsp;Peter J. Allen,&nbsp;J. Wesley Neal,&nbsp;Sandra B. Correa","doi":"10.1002/mcf2.10238","DOIUrl":"10.1002/mcf2.10238","url":null,"abstract":"<p>Tarpon <i>Megalops atlanticus</i> is a popular and economically important inshore sport fish in Puerto Rico, and the pursuit of this species by local anglers and tourists contributes to the economy. This species is managed as a no-take fishery, which aims to preserve populations by catching and releasing fish that would otherwise be subjected to harvest and removal from the population. The approach assumes minimal mortality and/or reduced fitness of released fish, yet the process of angling can produce many sublethal side effects or direct mortality. In this study, charter angling for Tarpon in the San Juan lagoon system in Puerto Rico was examined to determine postrelease mortality. Angled fish were externally tagged with acoustic transmitters and relocated periodically to determine the fate after release. Postrelease mortality was at least 4.5% (two fish observed dead) and at most 18.2% (observed dead plus classified dead based on lack of movement; confidence interval [CI] = 7.5–28.9%). Some tag loss was observed, which could have artificially elevated classified mortality estimates. Potential factors that contribute to mortality are discussed and compared to the literature. Hook type, gear action, landing procedures, and air exposure were key areas of possible improvement. Recommendations to minimize fish harm during angling include the use of heavier action gear to reduce fight time, a circle hook requirement for live bait to reduce deep hooking, maintaining fish in the water during landing and photography, and limiting air exposure to 2 min or less if fish are removed from the water.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"15 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10238","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44325764","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":"Trends in Area of Occurrence and Biomass of Fish and Macroinvertebrates on the Northeast U.S. Shelf Ecosystem","authors":"Kevin D. Friedland,&nbsp;Kisei R. Tanaka,&nbsp;Szymon Smoliński,&nbsp;Yanjun Wang,&nbsp;Cameron Hodgdon,&nbsp;Mackenzie Mazur,&nbsp;John Wiedenmann,&nbsp;Chandra Goetsch,&nbsp;Daniel E. Pendleton","doi":"10.1002/mcf2.10235","DOIUrl":"10.1002/mcf2.10235","url":null,"abstract":"<p>Climate change can affect the habitat of marine species and hence their persistence and adaptation. Trends in area of occurrence and population biomass were examined for 177 fish and macroinvertebrates resident to the Northeast U.S. Continental Shelf ecosystem. Samples of these organisms were taken during a time series of research bottom trawl surveys conducted in the spring and autumn 1976–2019. The occurrence area of each taxon was modeled as the distribution of occurrence probability based on a random forest presence/absence classification model. Following, a population biomass of each taxon was modeled as a minimum swept area estimate, where the ecosystem was stratified biannually based on each taxon's spatial distribution. In both seasons, the sum of occurrence area and biomass across all modeled species increased over the study period. The summation of biomass is problematic since catchability is not known for most species; more importantly, most time series of individual species biomass trended higher. We found that the ratio of biomass to occurrence area, intended as a measure of productivity, showed no change in the autumn and had a weak increasing trend in spring. For the majority of taxa, the rate of change in biomass tracked changes in occurrence area (either positive or negative), but there were cases where the direction of change in biomass was opposite to the direction of change in occurrence area. Thermal conditions in surface waters appear to be a more important driver of occurrence area and biomass change than the change in thermal conditions near the bottom. These findings provide critical insights into the expected changes in ecosystem productivity transpiring with climate change.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"15 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10235","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46968714","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":"Effective Stakeholder Engagement for Offshore Wind Energy Development: The State of New York's Fisheries and Environmental Technical Working Groups","authors":"Morgan Brunbauer,&nbsp;Kate McClellan Press,&nbsp;Kathryn A. Williams,&nbsp;Brian K. Dresser,&nbsp;Julia Gulka,&nbsp;Greg Lampman","doi":"10.1002/mcf2.10236","DOIUrl":"10.1002/mcf2.10236","url":null,"abstract":"<p>The offshore wind (OSW) energy industry is rapidly developing in the United States. New federal mandates require at least 30 GW of OSW by 2030. With the largest goal in the eastern United States, the state of New York seeks to advance OSW in a way that is both environmentally and socially responsible as well as cost-effective. To achieve this, New York developed technical working groups (TWGs) in 2017 focused on critical topics relating to OSW energy development, including the Fisheries Technical Working Group and Environment Technical Working Group (F-TWG and E-TWG; collectively, “the TWGs”). The TWGs are composed of OSW developers, fishing industry (F-TWG) or environmental nongovernmental organizations (E-TWG), federal agency representatives, and state representatives from Maine to North Carolina. These groups advise the state of New York on OSW issues by emphasizing the use of science and technical expertise to inform decision making. The effectiveness of TWG collaborations is due to a variety of reasons, including the regional scale of stakeholder involvement, which allows the groups to develop guidance at an appropriate geographic scale relative to OSW and fishing activities and wildlife populations. The regional collaboration and communication fostered by the TWGs are essential for building trust among stakeholder groups and working collectively to minimize fisheries and environmental impacts as the OSW industry progresses. This paper highlights the OSW stakeholder engagement process and approach implemented by New York through the development of TWGs, as a means of identifying needs for environmental and fisheries resources to inform responsible OSW development within New York and regionally across the eastern United States. The lessons learned from the TWG process can be used to inform stakeholder engagement efforts in other locations.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"15 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10236","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48734523","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":"Interactive Effects of Climate Change-Induced Range Shifts and Wind Energy Development on Future Economic Conditions of the Atlantic Surfclam Fishery","authors":"Stephanie Stromp,&nbsp;Andrew M. Scheld,&nbsp;John M. Klinck,&nbsp;Daphne M. Munroe,&nbsp;Eric N. Powell,&nbsp;Roger Mann,&nbsp;Sarah Borsetti,&nbsp;Eileen E. Hofmann","doi":"10.1002/mcf2.10232","DOIUrl":"10.1002/mcf2.10232","url":null,"abstract":"<p>Rising water temperatures along the northeastern U.S. continental shelf have resulted in an offshore range shift of the Atlantic surfclam <i>Spisula solidissima</i> to waters still occupied by ocean quahogs <i>Arctica islandica</i>. Fishers presently are prohibited from landing both Atlantic surfclams and ocean quahogs in the same catch, thus limiting fishing to locations where the target species can be sorted on deck. Wind energy development on and around the fishing grounds will further restrict the fishery. A spatially explicit model of the Atlantic surfclam fishery (Spatially Explicit Fishery Economics Simulator) has the ability to simulate the consequences of fishery displacement due to wind energy development in combination with fishery and stock dynamics related to the species' overlap with ocean quahogs. Five sets of simulations were run to determine the effect of varying degrees of species overlap due to Atlantic surfclam range shifts in conjunction with fishing constraints due to wind farm development. Simulations tracked changes in relative stock status, fishery performance, and the economic consequences for the fishery. Compared to a business-as-usual scenario, all scenarios with less-restrictive fishing penalties due to species overlap exhibited higher raw catch numbers but also greater reductions in revenue and increases in cost after the implementation of wind farms. This analysis serves to demonstrate the response of the Atlantic surfclam fishery to combined pressures from competing ocean uses and climate change and emphasizes the potential for economic disruption of fisheries as climate change interacts with the evolution of ocean management on the continental shelf.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"15 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10232","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47333141","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":"Forage Fish Species Prefer Habitat within Designated Offshore Wind Energy Areas in the U.S. Northeast Shelf Ecosystem","authors":"Kevin D. Friedland,&nbsp;Evan M. Adams,&nbsp;Chandra Goetsch,&nbsp;Julia Gulka,&nbsp;Damian C. Brady,&nbsp;Everett Rzeszowski,&nbsp;Daniel P. Crear,&nbsp;Sarah Gaichas,&nbsp;Andrew B. Gill,&nbsp;M. Conor McManus,&nbsp;Elizabeth T. Methratta,&nbsp;Janelle L. Morano,&nbsp;Michelle D. Staudinger","doi":"10.1002/mcf2.10230","DOIUrl":"10.1002/mcf2.10230","url":null,"abstract":"<p>As the world develops sources of renewable energy, there is an intensifying interest in offshore wind energy production. The Northeast U.S. Continental Shelf (NES) ecosystem has favorable wind dynamics, with active development of wind energy. In this study, we present species distribution models that consider both occupancy and biomass responses for a broad spectrum of fish and macroinvertebrate taxa (<i>n</i> = 177). Building upon prior analyses, habitat was differentiated into overall and core habitats based on statistical distributions of habitat scores. Overall habitat was used to show each species' regional distribution based on fishery-independent survey captures between 1976 and 2019, whereas core habitat represented where the focus of the species' abundance was located as a subset of overall habitat. Wind energy developments may modify the water column in ways that impact lower-trophic-level productivity; therefore, added attention was given to the response of forage species. Over 20% of species showed preferential use of putative and potential wind development areas, including a disproportionate number of forage taxa. Principal usage varied by season, with forage species like Atlantic Menhaden <i>Brevoortia tyrannus</i> and Atlantic Mackerel <i>Scomber scombrus</i> preferentially using the lease areas in spring and Round Herring <i>Etrumeus teres</i> and longfin inshore squid <i>Doryteuthis pealeii</i> using lease areas in autumn. For species with relatively low usage of the lease areas, there was a tendency for the usage related to overall habitat to be lower than usage for core habitat; in contrast, for species with high usage of the lease areas, that usage was higher for overall habitat than for core habitat. The area of habitat tended to have positive trends across species, with these positive trends being disproportionately higher among forage taxa. These results frame the importance of wind lease areas for species in the NES, particularly forage taxa that fulfill many important ecological functions.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"15 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10230","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42076675","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":"Vertebral Chemistry Distinguishes Nursery Habitats of Juvenile Shortfin Mako in the Eastern North Pacific Ocean","authors":"Benjamin R. LaFreniere,&nbsp;Oscar Sosa-Nishizaki,&nbsp;Sharon Z. Herzka,&nbsp;Owyn Snodgrass,&nbsp;Heidi Dewar,&nbsp;Nathan Miller,&nbsp;R.J. David Wells,&nbsp;John A. Mohan","doi":"10.1002/mcf2.10234","DOIUrl":"10.1002/mcf2.10234","url":null,"abstract":"<p>Shortfin Mako <i>Isurus oxyrinchus</i> are ecologically and economically important apex predators throughout the global oceans. The eastern North Pacific Ocean contains several coastal nurseries for this species, where juveniles can forage and grow until venturing into offshore pelagic habitats, where seasonal migration and reproduction occurs. Opportunistically sampled vertebrae from both male and female juvenile Shortfin Mako (65.5–134.4 cm total length, neonate to age 2) were sourced from two distinct nurseries in the eastern North Pacific: the Southern California Bight (<i>n</i> = 12), USA, and Bahía Sebastián Vizcaíno (<i>n</i> = 11), Mexico. Mineralized vertebral cartilage was analyzed to determine concentrations of selected elements (Li, Mg, Mn, Zn, Sr, Ba, standardized to Ca) using laser ablation inductively coupled plasma mass spectrometry, targeting growth bands at specific life stages, including postparturition at the birth band and the recent life history of the individual at the vertebral edge. The elemental variation exhibited by these individuals over ~1 month of life before capture was explored by comparing recent vertebral concentrations, with Zn:Ca, Sr:Ca, and Ba:Ca concentrations significantly different between nurseries (Southern California Bight versus Bahía Sebastián Vizcaíno). Element variability through ontogeny was detected, as Li:Ca, Mg:Ca, and Zn:Ca concentrations were significantly different between individual past and recent vertebral bands. These findings suggest that vertebral chemistry approaches may enhance understanding of nursery habitat sources of migratory sharks.</p>","PeriodicalId":51257,"journal":{"name":"Marine and Coastal Fisheries","volume":"15 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mcf2.10234","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42415066","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}