Effects of Ocean Acidification on Phytoplankton Physiology and Nutrition for Fishery-based Food Webs

Description

Rising atmospheric concentrations of CO2 are predicted to decrease the pH of high-latitude oceans by 0.3–0.5 units by 2100. Because of their limited capacity for ion exchange, embryos and larvae of marine fishes are predicted to be more sensitive to elevated CO2 than juveniles and adults. Eggs and larvae of walleye pollock (Theragra chalcogramma) were incubated across a broad range of CO2 levels (280–2100 matm) to evaluate sensitivity in this critical resource species. Slightly elevated CO2 levels ( 450 matm) resulted in earlier hatching times, but differences among egg batches were greater than those observed across CO2 treatments. Egg batches differed significantly in size-at-hatch metrics, but we observed no consistent effect of CO2 level. In three independent experiments, walleye pollock were reared at ambient and elevated CO2 levels through the early larval stage (to 30 days post-hatch). Across trials, there were only minor effects of CO2 level on size and growth rate, but fish in the ambient treatments tended to be slightly smaller than fish reared at elevated CO2 levels. These results suggest that growth potential of early life stages of walleye pollock is resilient with respect to the direct physiological effects of ocean acidification.

Resources

Name Format Description Link
0 http://www.nodc.noaa.gov/cgi-bin/OAS/prd/accession/details/121255
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/26976
0 Online Resource http://www.nodc.noaa.gov/cgi-bin/OAS/prd/accession/details/121255
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/nefsc/dmp/pdf/26976.pdf
0 Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 https://www.nodc.noaa.gov/cgi-bin/OAS/prd/accession/details/121255
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/26976
0 Online Resource https://www.nodc.noaa.gov/cgi-bin/OAS/prd/accession/details/121255
0 Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/nefsc/dmp/pdf/26976.pdf

Tags

  • fatty acids
  • dissolved inorganic carbon (dic)
  • nitrate+nitrite
  • particulate phosphorus
  • biological laboratory experiments
  • partial pressure of carbon dioxide water
  • phytoplankton
  • doc/noaa/nmfs/nefsc
  • phosphate
  • noaa
  • northeast fisheries science center
  • nitrogen particulate
  • growth rate
  • u.s. department of commerce
  • national marine fisheries service
  • aquaculture sustainability branch (asb)
  • total alkalinity(ta)
  • silica species identication-count
  • particulate carbon
  • laboratory experiments
  • northeast atlantic
  • lipids
  • continuous

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