Chronic effects of linear alkylbenzene sulfonate (LAS) and ammonia on rainbow trout ( Oncorhynchus mykiss ) fry at water criteria limits

Chronic effects of linear alkylbenzene sulfonate (LAS) and ammonia on rainbow trout (... Rainbow trout fry was chronically exposed (54 days) to 0.2 mg l −1 LAS(C 11–12 ). Although this concentration is considered to be the NOEC (no observed effect concentration), lamellar gill epithelia hypertrophied and swimming capacity was reduced. Furthermore, the exposure of the fish to a secondary stressor (low salinity challenge test) caused increased mortality. Un-ionized ammonia did not affect the above-mentioned parameters when fish were treated with a NOEC of 24 μg 1 −1 . At 72 μg l −1 , however, un-ionized ammonia caused distinct hypertrophy of gill epithelia. This effect was significantly enhanced when combined with LAS (additive effect). Only in this group, growth was reduced. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Water Research Elsevier

Chronic effects of linear alkylbenzene sulfonate (LAS) and ammonia on rainbow trout ( Oncorhynchus mykiss ) fry at water criteria limits

Water Research, Volume 29 (12) – Dec 1, 1995

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Publisher
Elsevier
Copyright
Copyright © 1995 Elsevier Ltd
ISSN
0043-1354
DOI
10.1016/0043-1354(95)00143-9
Publisher site
See Article on Publisher Site

Abstract

Rainbow trout fry was chronically exposed (54 days) to 0.2 mg l −1 LAS(C 11–12 ). Although this concentration is considered to be the NOEC (no observed effect concentration), lamellar gill epithelia hypertrophied and swimming capacity was reduced. Furthermore, the exposure of the fish to a secondary stressor (low salinity challenge test) caused increased mortality. Un-ionized ammonia did not affect the above-mentioned parameters when fish were treated with a NOEC of 24 μg 1 −1 . At 72 μg l −1 , however, un-ionized ammonia caused distinct hypertrophy of gill epithelia. This effect was significantly enhanced when combined with LAS (additive effect). Only in this group, growth was reduced.

Journal

Water ResearchElsevier

Published: Dec 1, 1995

References

  • Toxicity of synthetic detergents to fish and aquatic invertebrates
    Abel, P.
  • Evaluation of a laboratory-generated NOEC for linear alkylbenzene sulfonate in outdoor experimental streams
    Fairchild, J.F.; Dwyer, F.J.; La Point, T.W.; Burch, S.A.; Ingersoll, C.G.
  • Biological effects of surface active agents on marine animals
    Svedmark, M.; Braaten, B.; Emanuelsson, E.; Granmo, A.

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