Sublethal metabolic responses of the hermatypic coral Madracis decactis exposed to drilling mud enriched with ferrochrome lignosulfonate
Technical Report
·
OSTI ID:5850915
Madracis decactis corals were exposed for 17 days in laboratory aquaria to suspensions of 100 ppm drilling mud spiked with 0, 3, and 10 ppm ferrochrome lignosulfonate (FCLS). During the first week of exposure, these corals increased their oxygen consumption and ammonium excretion, relative to uncontaminated controls. These corals exposed to the highest enrichments of FCLS demonstrated the greatest increases in respiration and excretion and also the largest variations in respiration and excretion between individual experimental animals. Corals reached their highest average rates of respiration and excretion by the end of the first week of continuous exposure. Rates then decreased during the next week and, after a secondary increase in excretion and respiration between days 10-13 which was most pronounced in those corals exposed to FCLS enrichment, leveled off at near-initial rates by the end of the second week. All corals exposed to FCLS reacted by reducing their polyp expansion behavior, although only the two showed mass polyp mortality. When exposure to drill mud + FCLS was discontinued, respiration and excretion of surviving corals remained low and stable while their polyp activity returned to normal levels within 48 hours.
- Research Organization:
- Texas A and M Univ., College Station (USA)
- OSTI ID:
- 5850915
- Report Number(s):
- PB-81-231623
- Country of Publication:
- United States
- Language:
- English
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Journal Article
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Sun Jun 01 00:00:00 EDT 1997
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·
OSTI ID:514603
Effects of drilling fluids (muds) and turbidity on the metabolic state of the coral Acropora cervicornis: calcification rate and protein concentration
Thesis/Dissertation
·
Fri Dec 31 23:00:00 EST 1982
·
OSTI ID:6109084
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· Bull. Environ. Contam. Toxicol.; (United States)
·
OSTI ID:6498697
Related Subjects
02 PETROLEUM
020900 -- Petroleum-- Environmental Aspects
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560304* -- Chemicals Metabolism & Toxicology-- Invertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AMMONIA
CLEARANCE
CNIDARIA
CORALS
DRILLING FLUIDS
EXCRETION
FLUIDS
HYDRIDES
HYDROGEN COMPOUNDS
METABOLISM
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
POLLUTION
RESPIRATION
SULFONATES
TOXICITY
WATER POLLUTION
020900 -- Petroleum-- Environmental Aspects
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560304* -- Chemicals Metabolism & Toxicology-- Invertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AMMONIA
CLEARANCE
CNIDARIA
CORALS
DRILLING FLUIDS
EXCRETION
FLUIDS
HYDRIDES
HYDROGEN COMPOUNDS
METABOLISM
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
POLLUTION
RESPIRATION
SULFONATES
TOXICITY
WATER POLLUTION