The Effect of Ocean Warming on Black Sea Bass (Centropristis Striata) Aerobic Scope and Hypoxia Tolerance

Authors

Emily Slesinger, Rutgers University
Alyssa Andres, University of South Florida
Rachael Young, Rutgers University
Brad Seibel, University of South FloridaFollow
Vincent Saba, National Oceanic and Atmospheric Administration (NOAA), Northeast Fisheries Science Center, Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States of America
Beth Phelan, National Oceanic and Atmospheric Administration (NOAA), Northeast Fisheries Science Center, James J. Howard Laboratory, Highlands, NJ, United States of America
John Rosendale, National Oceanic and Atmospheric Administration (NOAA), Northeast Fisheries Science Center, James J. Howard Laboratory, Highlands, NJ, United States of America
Daniel Wieczorek, National Oceanic and Atmospheric Administration (NOAA), Northeast Fisheries Science Center, James J. Howard Laboratory, Highlands, NJ, United States of America
Grace Saba, Rutgers University

Document Type

Article

Publication Date

2019

Digital Object Identifier (DOI)

https://doi.org/10.1371/journal.pone.0218390

Abstract

Over the last decade, ocean temperature on the U.S. Northeast Continental Shelf (U.S. NES) has warmed faster than the global average and is associated with observed distribution changes of the northern stock of black sea bass (Centropristis striata). Mechanistic models based on physiological responses to environmental conditions can improve future habitat suitability projections. We measured maximum, standard metabolic rate, and hypoxia tolerance (S_crit) of the northern adult black sea bass stock to assess performance across the known temperature range of the species. Two methods, chase and swim-flume, were employed to obtain maximum metabolic rate to examine whether the methods varied, and if so, the impact on absolute aerobic scope. A subset of individuals was held at 30°C for one month (30_chronic°C) prior to experiments to test acclimation potential. Absolute aerobic scope (maximum–standard metabolic rate) reached a maximum of 367.21 mgO₂ kg^-1 hr^-1 at 24.4°C while S_crit continued to increase in proportion to standard metabolic rate up to 30°C. The 30_chronic°C group exhibited a significantly lower maximum metabolic rate and absolute aerobic scope in relation to the short-term acclimated group, but standard metabolic rate or S_crit were not affected. This suggests a decline in performance of oxygen demand processes (e.g. muscle contraction) beyond 24°C despite maintenance of oxygen supply. The Metabolic Index, calculated from S_crit as an estimate of potential aerobic scope, closely matched the measured factorial aerobic scope (maximum / standard metabolic rate) and declined with increasing temperature to a minimum below 3. This may represent a critical threshold value for the species. With temperatures on the U.S. NES projected to increase above 24°C in the next 80-years in the southern portion of the northern stock’s range, it is likely black sea bass range will continue to shift poleward as the ocean continues to warm.

Was this content written or created while at USF?

Yes

Citation / Publisher Attribution

PLoS ONE, v. 14, issue 6, art. e0218390

This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 public domain dedication.

Scholar Commons Citation

Slesinger, Emily; Andres, Alyssa; Young, Rachael; Seibel, Brad; Saba, Vincent; Phelan, Beth; Rosendale, John; Wieczorek, Daniel; and Saba, Grace, "The Effect of Ocean Warming on Black Sea Bass (Centropristis Striata) Aerobic Scope and Hypoxia Tolerance" (2019). Marine Science Faculty Publications. 2328.
https://digitalcommons.usf.edu/msc_facpub/2328