Combined effects of hypoxia or elevated temperature and Deepwater Horizon crude oil exposure on juvenile mahi-mahi swimming performance

Edward M. Mager, Christina Pasparakis, John Stieglitz, Ronald Hoenig, Jeffrey M. Morris, Daniel D Benetti, Martin Grosell

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

This study examined potential interactive effects of co-exposure to Deepwater Horizon (DWH) crude oil (∼30 μg L−1 ΣPAHs) for 24 h and either hypoxia (2.5 mg O2 L−1; 40% O2 saturation) or elevated temperature (30 °C) on the swimming performance of juvenile mahi-mahi (Coryphaena hippurus). Additionally, effects of shorter duration exposures to equal or higher doses of oil alone either prior to swimming or during the actual swim trial itself were examined. Only exposure to hypoxia alone or combined with crude oil elicited significant decreases in critical swimming speed (Ucrit) and to a similar extent (∼20%). In contrast, results indicate that elevated temperature might ameliorate some effects of oil exposure on swimming performance and that effects of shorter duration exposures are either reduced or delayed.

Original languageEnglish (US)
JournalMarine Environmental Research
DOIs
StateAccepted/In press - Jan 1 2018

Fingerprint

Coryphaena hippurus
hypoxia
crude oil
Crude oil
oils
exposure duration
temperature
Temperature
Polycyclic aromatic hydrocarbons
oil
PAH
effect
exposure
Swimming
saturation
dosage
Oils

Keywords

  • Aerobic scope
  • Coryphaena hippurus
  • Gulf of Mexico
  • PAHs
  • Pelagic fish
  • U

ASJC Scopus subject areas

  • Oceanography
  • Aquatic Science
  • Pollution

Cite this

Combined effects of hypoxia or elevated temperature and Deepwater Horizon crude oil exposure on juvenile mahi-mahi swimming performance. / Mager, Edward M.; Pasparakis, Christina; Stieglitz, John; Hoenig, Ronald; Morris, Jeffrey M.; Benetti, Daniel D; Grosell, Martin.

In: Marine Environmental Research, 01.01.2018.

Research output: Contribution to journalArticle

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