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Chronic toxicity and hazard assessment of an inorganic mixture simulating irrigation drainwater to razorback sucker and bonytail
Environmental toxicology, 2000, Vol.15 (1), p.48-64
Hamilton, Steven J.
Buhl, Kevin J.
Bullard, Fern A.
Little, Edward E.
2000
Details
Autor(en) / Beteiligte
Hamilton, Steven J.
Buhl, Kevin J.
Bullard, Fern A.
Little, Edward E.
Titel
Chronic toxicity and hazard assessment of an inorganic mixture simulating irrigation drainwater to razorback sucker and bonytail
Ist Teil von
Environmental toxicology, 2000, Vol.15 (1), p.48-64
Ort / Verlag
New York: John Wiley & Sons, Inc
Erscheinungsjahr
2000
Link zum Volltext
Quelle
Wiley Online Library Database Model
Beschreibungen/Notizen
We conducted two 90 day chronic toxicity studies with two endangered fish, razorback sucker and bonytail. Swim‐up larvae were exposed in a reconstituted water simulating the middle Green River. The toxicant mixture simulated the environmental ratio and concentrations of inorganics reported in a Department of the Interior study for the mouth of Ashley Creek on the Green River, and was composed of nine elements. The mixture was tested at 1X, 2X, 4X, 8X, and 16X where X was the measured environmental concentration (2 μg/L arsenic, 630 μg/L boron, 10 μg/L copper, 5 μg/L molybdenum, 51 μg/L selenate, 8 μg/L selenite, 33 μg/L uranium, 2 μg/L vanadium, and 20 μg/L zinc). Razorback sucker had reduced survival after 60 days exposure to the inorganic mixture at 8X, whereas growth was reduced after 30 and 60 days at 2X and after 90 days at 4X. Bonytail had reduced survival after 30 days exposure at 16X, whereas growth was reduced after 30, 60, and 90 days at 8X. Swimming performance of razorback sucker and bonytail were reduced after 60 and 90 days of exposure at 8X. Whole‐body residues of copper, selenium, and zinc increased in a concentration‐response manner and seemed to be regulated at 90 days of exposure at 4X and lower treatments for razorback sucker, and at 8X and lower for bonytail. Adverse effects occurred in fish with whole‐body residues of copper, selenium, and zinc similar to those causing similar effects in other fish species. Comparison of adverse effect concentrations with measured environmental concentrations showed a high hazard to the two endangered fish. Irrigation activities may be a contributing factor to the decline of these endangered fishes in the middle Green River. ©2000 John Wiley & Sons, Inc. Environ Toxicol 15: 48–64, 2000
Sprache
Englisch
Identifikatoren
ISSN: 1520-4081
eISSN: 1522-7278
DOI: 10.1002/(SICI)1522-7278(2000)15:1<48::AID-TOX7>3.0.CO;2-G
Titel-ID: cdi_proquest_miscellaneous_14525863
Format
–
Schlagworte
Agnatha. Pisces
,
Animal, plant and microbial ecology
,
Applied ecology
,
Biological and medical sciences
,
bonytail
,
Ecotoxicology, biological effects of pollution
,
Effects of pollution and side effects of pesticides on vertebrates
,
Fundamental and applied biological sciences. Psychology
,
Green River
,
inorganic mixture
,
irrigation
,
razorback sucker
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