Species diversity and within-stream distribution of stream dwelling fishes from western Manitoba
Abundance of fishes was determined at stations located in several western Manitoba streams. By use of a multivariate classification procedure, groups of species were identified which were similar in their distribution among arbitrarily defined habitat types. The largest group of species was associ...
| Main Author: | |
|---|---|
| Published: |
2012
|
| Online Access: | http://hdl.handle.net/1993/6196 |
| id |
ndltd-MANITOBA-oai-mspace.lib.umanitoba.ca-1993-6196 |
|---|---|
| record_format |
oai_dc |
| spelling |
ndltd-MANITOBA-oai-mspace.lib.umanitoba.ca-1993-61962014-01-31T03:33:05Z Species diversity and within-stream distribution of stream dwelling fishes from western Manitoba Valiant, Hugh Abundance of fishes was determined at stations located in several western Manitoba streams. By use of a multivariate classification procedure, groups of species were identified which were similar in their distribution among arbitrarily defined habitat types. The largest group of species was associated with areas of low current speed, but within high gradient sections of the streams. Species diversity (defined as the number of fish species present) was related to structural features of the environment. By an analysis of variance technique, it was concluded that stream gradient and current speed explained most of the variation in diversity. When a predator (Esox lucius) was present, diversity and abundance of the remaining species were both reduced. 2012-05-15T15:54:56Z 2012-05-15T15:54:56Z 1975 http://hdl.handle.net/1993/6196 |
| collection |
NDLTD |
| sources |
NDLTD |
| description |
Abundance of fishes was determined at stations located in several western Manitoba streams. By use of a multivariate classification procedure, groups of species were identified which were similar in their distribution among arbitrarily defined habitat types. The largest group of species was associated with areas of low current speed, but within high gradient sections of the streams. Species diversity (defined as the number of fish species present) was related to structural features of the environment. By an analysis of variance technique, it was concluded that stream gradient and current speed explained most of the variation in diversity. When a predator (Esox lucius) was present, diversity and abundance of the remaining species were both reduced. |
| author |
Valiant, Hugh |
| spellingShingle |
Valiant, Hugh Species diversity and within-stream distribution of stream dwelling fishes from western Manitoba |
| author_facet |
Valiant, Hugh |
| author_sort |
Valiant, Hugh |
| title |
Species diversity and within-stream distribution of stream dwelling fishes from western Manitoba |
| title_short |
Species diversity and within-stream distribution of stream dwelling fishes from western Manitoba |
| title_full |
Species diversity and within-stream distribution of stream dwelling fishes from western Manitoba |
| title_fullStr |
Species diversity and within-stream distribution of stream dwelling fishes from western Manitoba |
| title_full_unstemmed |
Species diversity and within-stream distribution of stream dwelling fishes from western Manitoba |
| title_sort |
species diversity and within-stream distribution of stream dwelling fishes from western manitoba |
| publishDate |
2012 |
| url |
http://hdl.handle.net/1993/6196 |
| work_keys_str_mv |
AT valianthugh speciesdiversityandwithinstreamdistributionofstreamdwellingfishesfromwesternmanitoba |
| _version_ |
1716629256711176192 |