Ocean acidification impacts on black sea bass and scup embryos, responses of finfish in laboratory experiments

Description

Black sea bass (Centropristis striata) and scup (Stenotomus chrysops) compose important recreational and commercial fisheries along the United States Atlantic coast. Black sea bass is a temperate species, associated with reef habitat. Wild stocks and landings have been decreasong in recent decades. The demand for black sea bass exceeds supply, and the high market value has prompted research to evaluate their potential for commercial aquaculture. Recent studies conducted at the National Marine Fisheries Service, Milford, CT laboratory examined growth rates of juvenile scup fed commercial diets. This and other on-going studies at Milford have shown scup to acclimate quickly to tank conditions in the laboratory, and to exhibit rapid growth rates. These studies indicate the possibility that scup have potential as a candidiate species for commercial aquaculture. Studies with both fish species suggest they are interesting species for studies of the effects of ocean acidification because of their economic importance as fisheries species. These studies focused on laboratory-based experiments to measure the biological effects of elevated levels of CO2 on embryos of these important marine finfish. Adult black sea bass were naturally conditioned and spawned in the laboratory by photo-thermal manipulation. Adult scup were strip-spawned at sea and their eggs were fertilized at sea. The fertilized eggs of both species of fish were exposed to two treatment levels of pCO2 and one control level, with three replicates per treatment and the controls. Measurements of biological effects included percent hatch, viable embryos, abnormal embryos, and dead embryos. Measurements of dissolved oxygen concentration, percent oxygen saturation, temperature, salinity and pH were taken daily in each treatment container and the controls. Samples of seawater were taken at the time of intial experimental setup and at the time of hatching from each container for analyses of dissolved inorganic carbon (DIC), and analyses of pH by spectrometry.

Resources

Name Format Description Link
0 5 Files: O.A. black sea bass embryo & larval Samples 2013.xlsx OA 2015 black seabass counts 7-10-2015.xlsx OA 2015 scup counts 6-25-2015 trial 1.xlsx OA 2015 scup counts 6-28-2015 trial 2.xlsx OA Larval hatch rates 2014.xlsx https://console.cloud.google.com/storage/browser/nmfs_odp_nefsc/PARR/EAD/ASEB/25107
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/25107
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/nefsc/dmp/pdf/25107.pdf

Tags

  • abnormal
  • salinity
  • total hatch
  • percent oxygen saturation
  • carbon dioxide concentration
  • ocean acidification
  • doc/noaa/nmfs/nefsc
  • noaa
  • northeast fisheries science center
  • northwest atlantic
  • dissolved inorganic carbon
  • scup
  • experimental
  • summer
  • u.s. department of commerce
  • national marine fisheries service
  • embryos
  • aquaculture systems & ecology branch (aseb)
  • black sea bass
  • dissolved oxygen concentration
  • pelagic
  • normal
  • temperature
  • ph

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