A longitudinal physico-chemical and algal survey of five rivers flowing through the AOSERP study area
Studies concentrating upon the epilithon were conducted in five tributary rivers flowing into the Athabasca River: the Muskeg, Steepbank, Hangingstone, MacKay, and Ells rivers. The species composition of the epilithic algae was determined during June to November 1978. Diatoms and blue-green algae do...
Main Authors: | , , |
---|---|
Format: | Other/Unknown Material |
Language: | English |
Published: |
1980
|
Subjects: | |
Online Access: | https://doi.org/10.7939/R3BV77 https://era.library.ualberta.ca/items/3b91fb50-66f8-4151-824a-2dae0817ffbb |
id |
fttriple:oai:gotriple.eu:10670/1.10402/era.23568 |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:10670/1.10402/era.23568 2023-05-15T15:26:05+02:00 A longitudinal physico-chemical and algal survey of five rivers flowing through the AOSERP study area Jenkerson, C. G. Hickman, M. Charlton, S. E. D. 1980-01-01 https://doi.org/10.7939/R3BV77 https://era.library.ualberta.ca/items/3b91fb50-66f8-4151-824a-2dae0817ffbb en eng doi:10.7939/R3BV77 10670/1.10402/era.23568 https://era.library.ualberta.ca/items/3b91fb50-66f8-4151-824a-2dae0817ffbb other ERA : Education and Research Archive envir geo Other https://vocabularies.coar-repositories.org/resource_types/c_1843/ 1980 fttriple https://doi.org/10.7939/R3BV77 2023-01-22T18:13:28Z Studies concentrating upon the epilithon were conducted in five tributary rivers flowing into the Athabasca River: the Muskeg, Steepbank, Hangingstone, MacKay, and Ells rivers. The species composition of the epilithic algae was determined during June to November 1978. Diatoms and blue-green algae dominated numerically except in the Hangingstone River where chlorophycean species replaced the latter group . Seasonal fluctuations in algal species and numbers were followed together with seasonal measurements of standing crop and primary productivity. These latter results probably underestimate true productivity because non-circulating chambers had to be used until circulating ones were constructed. To examine the chief determinants causing species, standing crop, and productivity fluctuations, various chemical and physical factors were measured, their fluctuations described, and relationships examined. This preliminary analysis showed no single nutrient or physical factor to be responsible. Instead, a complex interaction of factors is involved. Current velocity appears to be the most important. Comparisons of the mean standing crops and mean discharge rates produced a highly significant correlation among these rivers. Other factors, including nitrate-nitrogen, dissolved silica, irradiance, and water temperature, were important. However, due to the small data base, these results should be viewed as tentative. Largest mean standing crops for the June to November period occurred in the Steepbank, Ells, and Hangingstone Rivers, while largest mean production rates occurred in the Ells and Muskeg rivers. The MacKay River possessed the smallest standing crop and was the least productive. Other/Unknown Material Athabasca River Unknown Athabasca River Hangingstone River ENVELOPE(-111.335,-111.335,56.717,56.717) Mackay ENVELOPE(168.517,168.517,-77.700,-77.700) MacKay River ENVELOPE(-111.635,-111.635,57.167,57.167) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
envir geo |
spellingShingle |
envir geo Jenkerson, C. G. Hickman, M. Charlton, S. E. D. A longitudinal physico-chemical and algal survey of five rivers flowing through the AOSERP study area |
topic_facet |
envir geo |
description |
Studies concentrating upon the epilithon were conducted in five tributary rivers flowing into the Athabasca River: the Muskeg, Steepbank, Hangingstone, MacKay, and Ells rivers. The species composition of the epilithic algae was determined during June to November 1978. Diatoms and blue-green algae dominated numerically except in the Hangingstone River where chlorophycean species replaced the latter group . Seasonal fluctuations in algal species and numbers were followed together with seasonal measurements of standing crop and primary productivity. These latter results probably underestimate true productivity because non-circulating chambers had to be used until circulating ones were constructed. To examine the chief determinants causing species, standing crop, and productivity fluctuations, various chemical and physical factors were measured, their fluctuations described, and relationships examined. This preliminary analysis showed no single nutrient or physical factor to be responsible. Instead, a complex interaction of factors is involved. Current velocity appears to be the most important. Comparisons of the mean standing crops and mean discharge rates produced a highly significant correlation among these rivers. Other factors, including nitrate-nitrogen, dissolved silica, irradiance, and water temperature, were important. However, due to the small data base, these results should be viewed as tentative. Largest mean standing crops for the June to November period occurred in the Steepbank, Ells, and Hangingstone Rivers, while largest mean production rates occurred in the Ells and Muskeg rivers. The MacKay River possessed the smallest standing crop and was the least productive. |
format |
Other/Unknown Material |
author |
Jenkerson, C. G. Hickman, M. Charlton, S. E. D. |
author_facet |
Jenkerson, C. G. Hickman, M. Charlton, S. E. D. |
author_sort |
Jenkerson, C. G. |
title |
A longitudinal physico-chemical and algal survey of five rivers flowing through the AOSERP study area |
title_short |
A longitudinal physico-chemical and algal survey of five rivers flowing through the AOSERP study area |
title_full |
A longitudinal physico-chemical and algal survey of five rivers flowing through the AOSERP study area |
title_fullStr |
A longitudinal physico-chemical and algal survey of five rivers flowing through the AOSERP study area |
title_full_unstemmed |
A longitudinal physico-chemical and algal survey of five rivers flowing through the AOSERP study area |
title_sort |
longitudinal physico-chemical and algal survey of five rivers flowing through the aoserp study area |
publishDate |
1980 |
url |
https://doi.org/10.7939/R3BV77 https://era.library.ualberta.ca/items/3b91fb50-66f8-4151-824a-2dae0817ffbb |
long_lat |
ENVELOPE(-111.335,-111.335,56.717,56.717) ENVELOPE(168.517,168.517,-77.700,-77.700) ENVELOPE(-111.635,-111.635,57.167,57.167) |
geographic |
Athabasca River Hangingstone River Mackay MacKay River |
geographic_facet |
Athabasca River Hangingstone River Mackay MacKay River |
genre |
Athabasca River |
genre_facet |
Athabasca River |
op_source |
ERA : Education and Research Archive |
op_relation |
doi:10.7939/R3BV77 10670/1.10402/era.23568 https://era.library.ualberta.ca/items/3b91fb50-66f8-4151-824a-2dae0817ffbb |
op_rights |
other |
op_doi |
https://doi.org/10.7939/R3BV77 |
_version_ |
1766356639659589632 |