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Are we ready to track climate-driven shifts in marine species across international boundaries? - A global survey of scientific bottom trawl data.

Aurore A MaureaudRomain FrelatLaurene PecuchetNancy L ShackellBastien MérigotMalin L PinskyKofi AmadorSean C AndersonAlexander ArkhipkinArnaud AuberIça BarriRichard J BellJonathan BelmakerEsther BeukhofMohamed L CamaraRenato Guevara-CarrascoJunghwa ChoiHelle T ChristensenJason ConnerLuis A CubillosHamet D DiadhiouDori EdelistMargrete EmblemsvågBilly ErnstTracey P FairweatherHeino O FockKevin D FriedlandCamilo B GarciaDidier GascuelHenrik GislasonMenachem GorenJérôme GuittonDidier JouffreTarek HattabManuel HidalgoJohannes N KathenaIan KnuckeySaïkou O KidéMariano Koen-AlonsoMatt KoopmanVladimir KulikJacqueline Palacios LeónYa'arit Levitt-BarmatsMartin LindegrenMarcos LlopeFélix Massiot-GranierHicham MasskiMatthew J McLeanBeyah MeissaLaurène MérilletVesselina MihnevaFrancis K E NunooRichard O'DriscollCecilia A O'LearyElitsa PetrovaJorge E RamosWahid RefesEsther Román-MarcoteHelle SiegstadIgnacio SobrinoJón SólmundssonOren SoninIngrid SpiesPetur SteingrundFabrice StephensonNir SternFeriha TserkovaGeorges TserpesEvangelos TzanatosItai van RijnPaul A M van ZwietenParaskevas VasilakopoulosDaniela V YepsenPhilippe ZieglerJames T Thorson
Published in: Global change biology (2020)
Marine biota are redistributing at a rapid pace in response to climate change and shifting seascapes. While changes in fish populations and community structure threaten the sustainability of fisheries, our capacity to adapt by tracking and projecting marine species remains a challenge due to data discontinuities in biological observations, lack of data availability, and mismatch between data and real species distributions. To assess the extent of this challenge, we review the global status and accessibility of ongoing scientific bottom trawl surveys. In total, we gathered metadata for 283,925 samples from 95 surveys conducted regularly from 2001 to 2019. We identified that 59% of the metadata collected are not publicly available, highlighting that the availability of data is the most important challenge to assess species redistributions under global climate change. Given that the primary purpose of surveys is to provide independent data to inform stock assessment of commercially important populations, we further highlight that single surveys do not cover the full range of the main commercial demersal fish species. An average of 18 surveys is needed to cover at least 50% of species ranges, demonstrating the importance of combining multiple surveys to evaluate species range shifts. We assess the potential for combining surveys to track transboundary species redistributions and show that differences in sampling schemes and inconsistency in sampling can be overcome with spatio-temporal modeling to follow species density redistributions. In light of our global assessment, we establish a framework for improving the management and conservation of transboundary and migrating marine demersal species. We provide directions to improve data availability and encourage countries to share survey data, to assess species vulnerabilities, and to support management adaptation in a time of climate-driven ocean changes.
Keyphrases
  • climate change
  • electronic health record
  • cross sectional
  • big data
  • genetic diversity
  • data analysis
  • risk assessment
  • human health
  • artificial intelligence