1. Home
  2. Items
  3. Biological productivity of the Coeur d'Alene River as related to...
PDF

Biological productivity of the Coeur d'Alene River as related to water quality. Research technical completion report, Project A-024-IDA Item Info

Determinations of the acute toxicity of zinc to Cutthroat trout (Salmo clarki) fingerlings were conducted using two bioassay systems. Methyl orange alkalinity of the test water was 23.9 ppm as calcium carbonate. PH values were near neutrality. In a standard, static bioassay, 24, 48 and 96 hr median tolerance limit (TLm) values of 0.62, 0.27 and 0.09 ppm zinc respectively, were obtained. Results of a recirculating, flowing-water bioassay showed a 24 hr TLm value of 0.42 ppm zinc. No 48 or 96 hr values were found due to statistical nonsignificance of the data. The inconclusiveness of the results of the running system may be due to changes in the concentration of zinc present in the test water as a result of sorption of the zinc ions to the bottom and sides of the test tank.

View on Timeline View on Map Download PDF
Title:
Biological productivity of the Coeur d'Alene River as related to water quality. Research technical completion report, Project A-024-IDA
Authors:
Rabe, F. W.; Sappington, C. W.
Date Created (ISO Standard):
1970-12
Description:
Determinations of the acute toxicity of zinc to Cutthroat trout (Salmo clarki) fingerlings were conducted using two bioassay systems. Methyl orange alkalinity of the test water was 23.9 ppm as calcium carbonate. PH values were near neutrality. In a standard, static bioassay, 24, 48 and 96 hr median tolerance limit (TLm) values of 0.62, 0.27 and 0.09 ppm zinc respectively, were obtained. Results of a recirculating, flowing-water bioassay showed a 24 hr TLm value of 0.42 ppm zinc. No 48 or 96 hr values were found due to statistical nonsignificance of the data. The inconclusiveness of the results of the running system may be due to changes in the concentration of zinc present in the test water as a result of sorption of the zinc ions to the bottom and sides of the test tank.
Subjects:
zinc riverine limnology bioassay trout
Location:
Coeur d'Alene River
Latitude:
47.51
Longitude:
-116.15
Collection:
Coeur d'Alene Basin
IWRRI number:
197017
Rights:
In copyright, educational use permitted. Educational use includes non-commercial reproduction of text and images in materials for teaching and research purposes. For other contexts beyond fair use, including digital reproduction, please contact the University of Idaho Library Special Collections and Archives Department at libspec@uidaho.edu. The University of Idaho Library is not liable for any violations of the law by users.
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:
"Biological productivity of the Coeur d'Alene River as related to water quality. Research technical completion report, Project A-024-IDA", Idaho Waters Digital Library, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/iwdl/items/iwdl-cda_rabe_1970.html
Rights
Rights:
In copyright, educational use permitted. Educational use includes non-commercial reproduction of text and images in materials for teaching and research purposes. For other contexts beyond fair use, including digital reproduction, please contact the University of Idaho Library Special Collections and Archives Department at libspec@uidaho.edu. The University of Idaho Library is not liable for any violations of the law by users.
Standardized Rights:
http://rightsstatements.org/vocab/InC-EDU/1.0/
« Previous Back to Browse Next »