Oxygen consumption rates of grunion ( Leuresthes tenuis) embryos exposed to the petroleum hydrocarbon, benzo[ a]pyrene

Bioconcentration of [ 14C]benzo[ a]pyrene and effects of unlabeled benzo[ a]pyrene (BaP) accumulation on the routine oxygen consumption of embryonic grunion ( Leuresthes tenuis) were studied. At Day 15, bioconcentration factors over dissolved BaP levels ranged from 249 to 466. Weight-specific respir...

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Published in:Environmental research 1984-12, Vol.35 (2), p.413-420
Main Authors: Hose, Jo Ellen, Puffer, Harold W.
Format: Article
Language:English
Subjects:
Animals
Benzo(a)pyrene - metabolism
Benzo(a)pyrene - pharmacology
Biological and medical sciences
Body Burden
Embryo, Nonmammalian - drug effects
Embryo, Nonmammalian - metabolism
Environmental pollutants toxicology
Fishes
Leuresthes tenuis
Marine
Medical sciences
Oxygen Consumption - drug effects
Seawater
Toxicology
Water
Water Pollutants, Chemical
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cited_by cdi_FETCH-LOGICAL-c477t-7c2e15a80810af55ddfcc8d822968fb56373c20737fd2055cc2bf809bb7a11773
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description Bioconcentration of [ 14C]benzo[ a]pyrene and effects of unlabeled benzo[ a]pyrene (BaP) accumulation on the routine oxygen consumption of embryonic grunion ( Leuresthes tenuis) were studied. At Day 15, bioconcentration factors over dissolved BaP levels ranged from 249 to 466. Weight-specific respiration rates at Days 14–15 were significantly increased ( P ≦ 0.05) at a mean BaP body burden of 0.51 ppm wet wt. Oxygen consumption rates of embryos containing 0.70 to 12.80 ppm BaP were not significantly different from control rates. Because in a previous study embryos containing 0.51 ppm BaP exhibited hatching and developmental rates similar to those of controls, their metabolic response to low-level hydrocarbon exposure may be an example of hormesis, an overcompensating metabolic regulation to inhibitory challenges.
doi_str_mv 10.1016/0013-9351(84)90148-8
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ispartof Environmental research, 1984-12, Vol.35 (2), p.413-420
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1096-0953
language eng
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source ScienceDirect: Environmental Science Backfile
subjects Animals
Benzo(a)pyrene - metabolism
Benzo(a)pyrene - pharmacology
Biological and medical sciences
Body Burden
Embryo, Nonmammalian - drug effects
Embryo, Nonmammalian - metabolism
Environmental pollutants toxicology
Fishes
Leuresthes tenuis
Marine
Medical sciences
Oxygen Consumption - drug effects
Seawater
Toxicology
Water
Water Pollutants, Chemical
title Oxygen consumption rates of grunion ( Leuresthes tenuis) embryos exposed to the petroleum hydrocarbon, benzo[ a]pyrene
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