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A lethal index for classifying chemicals which affect water quality of aquatic life. Research technical completion report, project A-013-IDA Item Info

Seventeen toxic chemicals were bioassayed to investigate the possibility of measurable physiological responses to death in northern squawfish. Lethal indices, dependent upon concentration and temperature for each chemical, in terms of time between loss of equilibrium and death, were established. The physiological process of suffocation caused by the action of heavy metals and organic compounds of lactic acid formaldehyde, and p-nitrophenol was identifiable and unaffected by concentration or temperature. The anesthetic effect of p-chlorophenol was discrete and also unaffected by concentration or temperature . The physiological actions of nitrites, other phenols, chlorinated hydrocarbons, and organophosphorus compounds were not discretely identifiable and the data indicate multiple physiological effects for these chemicals depending on concentration.

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Title:
A lethal index for classifying chemicals which affect water quality of aquatic life. Research technical completion report, project A-013-IDA
Authors:
Macphee, Craig; Norman, Dennis
Contributors:
Idaho Water Resources Research Institute; IWRRI
Date:
1969-01
Description:
Seventeen toxic chemicals were bioassayed to investigate the possibility of measurable physiological responses to death in northern squawfish. Lethal indices, dependent upon concentration and temperature for each chemical, in terms of time between loss of equilibrium and death, were established. The physiological process of suffocation caused by the action of heavy metals and organic compounds of lactic acid formaldehyde, and p-nitrophenol was identifiable and unaffected by concentration or temperature. The anesthetic effect of p-chlorophenol was discrete and also unaffected by concentration or temperature . The physiological actions of nitrites, other phenols, chlorinated hydrocarbons, and organophosphorus compounds were not discretely identifiable and the data indicate multiple physiological effects for these chemicals depending on concentration.
Subjects:
bioassay fish (cyprinid) (minnow or pike family) salmon salmonid toxicity fish physiology water quality bioassay indicators
Collection:
IWRRI
Source:
Idaho Water Resources Research Institute, University of Idaho
Identifier:
IWRRI Number 196912
Publisher:
Idaho Water Resources Research Institute, University of Idaho
Contributing Institution:
University of Idaho
Type:
Text
Format:
application/pdf
Cataloger:
wbv
Date Digitized:
2012
Language:
eng

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Preferred Citation:
"A lethal index for classifying chemicals which affect water quality of aquatic life. Research technical completion report, project A-013-IDA", Idaho Waters Digital Library, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/iwdl/items/iwdl-196912.html
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