Physical microhabitat of trout
| dc.contributor.author | Wickham, Marvin Gary, author | |
| dc.contributor.author | Vincent, R. E., advisor | |
| dc.contributor.author | Meiman, James R. (James Richard), committee member | |
| dc.contributor.author | Reed, Edward B., committee member | |
| dc.date.accessioned | 2021-09-16T21:28:35Z | |
| dc.date.available | 2021-09-16T21:28:35Z | |
| dc.date.issued | 1976-07 | |
| dc.description.abstract | The physical microhabitat of stream-dwelling fishes is relatively unknown. Work done with albino brook trout suggests the operation of a previously unreported scheme of fish habitation, the focal point concept. This concept is expressed in focal point residency and in movements away from the focal point. Both focal point and movements have quantitative parameters. Each focal point is a relatively small area representing less than 3% of the area over which the fish ranged. During a 50 day study period, an average of 15% of each study section was utilized 95% of the time. Most focal points had a slow water area (0.33 ft./sec. average) overlain by a swift water mass (0.86 ft./sec. average). Study fish occupied the slow water area almost exclusively with the exception of occasional, short (time) trips into the swifter layer. All focal points show a high spatial correlation with cover. A high percentage of time (94%) was spent in shaded areas. Movements are characterized by the occupation of small amounts of time (6% of all observational time) and relatively large areas of the stream (up to 25% of the available stream area). A large percentage of the movements (66%) go away from and directly back to a focal point. Results from a number of one-way analysis of variance computations indicate important relationships between overlying physical factors and the microhabitat chosen by study fishes. | |
| dc.format.medium | masters theses | |
| dc.identifier.uri | https://hdl.handle.net/10217/233919 | |
| dc.language | English | |
| dc.language.iso | eng | |
| dc.publisher | Colorado State University. Libraries | |
| dc.relation | Catalog record number (MMS ID): 991003689519703361 | |
| dc.relation | SH167.T86 W5 | |
| dc.relation.ispartof | 1950-1979 | |
| dc.relation.isreferencedby | Meiman, James R. Little South Poudre Watershed and Pingree Park Campus. Colorado State University, College of Forestry and Natural Resources (1971). http://hdl.handle.net/10217/70382 | |
| dc.rights | Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. | |
| dc.subject | Brook trout | |
| dc.subject | Stream ecology | |
| dc.title | Physical microhabitat of trout | |
| dc.type | Text | |
| dcterms.rights.dpla | This Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). | |
| thesis.degree.discipline | Fishery and Wildlife Biology | |
| thesis.degree.grantor | Colorado State University | |
| thesis.degree.level | Masters | |
| thesis.degree.name | Master of Science (M.S.) |
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