1. Home
  2. Items
  3. A lethal index for classifying chemicals which affect water quality...
PDF

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.

View on Timeline Download PDF
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
Date Created (ISO Standard):
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
IWRRI number:
196912
Rights:
Rights to the digital resource are held by the University of Idaho. http://www.uidaho.edu/
Publisher:
University of Idaho
Contributing Institution:
University of Idaho
Type:
Text
Format:
application/pdf
Cataloger:
wbv
Date Digitized:
2012

Contact us about this record

Source
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
Rights
Rights:
Rights to the digital resource are held by the University of Idaho. http://www.uidaho.edu/
« Previous Back to Browse Next »