U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

i

Plasticity In Standard And Maximum Aerobic Metabolic Rates In Two Populations Of An Estuarine Dependent Teleost, Spotted Seatrout (Cynoscion Nebulosus)

Supporting Files


Details

  • Journal Title:
    Biology
  • Personal Author:
  • NOAA Program & Office:
  • Sea Grant Program:
    VSGCP (Virginia Sea Grant)
  • Description:
    We studied the effects of metabolic cold adaptation (MCA) in two populations of a eurythermal species, spotted seatrout (Cynoscion nebulosus) along the U.S. East Coast. Fish were captured from their natural environment and acclimated at control temperatures 15 °C or 20 °C. Their oxygen consumption rates, a proxy for metabolic rates, were measured using intermittent flow respirometry during acute temperature decrease or increase (2.5 °C per hour). Mass-specific standard metabolic rates (SMR) were higher in fish from the northern population across an ecologically relevant temperature gradient (5 °C to 30 °C). SMR were up to 37% higher in the northern population at 25 °C and maximum metabolic rates (MMR) were up to 20% higher at 20 °C. We found evidence of active metabolic compensation in the southern population from 5 °C to 15 °C (Q10 < 2), but not in the northern population. Taken together, our results indicate differences in metabolic plasticity between the northern and southern populations of spotted seatrout and provide a mechanistic basis for predicting population-specific responses to climate change.
  • Keywords:
  • Source:
    Biology 2019, 8(2), 46
  • DOI:
  • Sea Grant Document Number:
    VSGCP-R-19-015
  • Document Type:
    Journal Article
  • Funding:
    Grant no. NA140AR4170093
  • Place as Subject:
    Atlantic Coast (U.S.)
  • Rights Information:
    CC BY
  • Compliance:
    Library
  • Main Document Checksum:
    urn:sha256:676deb4e2bef39be432f4d474d1acce6ca7d0d7bd7da5a9d6df3729c93656bc0
  • Download URL:
  • File Type:
    Filetype[PDF - 1.70 MB ]
PREVIOUS
ON THIS PAGE
Details Supporting Files
The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.
BACK TO TOP