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Pelagic calcifiers face increased mortality and habitat loss with warming and ocean acidification
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  • Nina Bednarsek,
  • Brendan Carter,
  • Ryan McCabe,
  • RICHARD Allen Feely,
  • Evan Howard,
  • Francisco Chavez,
  • Meredith Elliott,
  • Jennifer Fisher,
  • Jaime Jahncke,
  • Zach Siegrist
Nina Bednarsek
Southern California Coastal Water Research Project

Corresponding Author:[email protected]

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Brendan Carter
NOAA Pacific Marine Environmental Laboratory
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Ryan McCabe
Cooperative Institute for the Study of the Atmosphere and Ocean
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RICHARD Allen Feely
National Oceanic and Atmospheric Administration
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Evan Howard
University of Washington School of Oceanography
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Francisco Chavez
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Meredith Elliott
Point Blue Conservation Science
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Jennifer Fisher
Cooperative Institute for Marine Resources Studies, Oregon State University
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Jaime Jahncke
Point Blue Conservation Science
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Zach Siegrist
System Science Applications, Inc.
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Global change is impacting the oceans in an unprecedented way with resulting changes in species distributions or species loss. There is increasing evidence that multiple environmental stressors act together to constrain species habitat more than expected from single stressor. Here, we conducted a comprehensive study of the combined impact of ocean warming and acidification (OWA) on a global distribution of pteropods, ecologically important pelagic calcifiers and an indicator species for ocean change. We co-validated three different approaches to evaluate the impact of OWA on pteropod survival and distribution. First, we used co-located physical, chemical, and biological data from oceanographic cruises and regional time-series; second, we conducted multifactorial experimental incubations using OWA to evaluate survival; and third, we validated pteropod distributions using global carbonate chemistry and observation datasets. Habitat suitability indices and global distributions suggest that a multi-stressor framework is essential for understanding distributions of this pelagic calcifier.
Oct 2022Published in Ecological Applications volume 32 issue 7. 10.1002/eap.2674