| Title | The Parr-Smolt Metamorphosis in Steelhead Trout as Affected by Photoperiod and Temperature |
| Publication Type | Thesis |
| Year of Publication | 1971 |
| Authors | Wagner, Harry Henry |
| Academic Department | Dept. of Fisheries and Wildlife, Fisheries |
| Degree | Ph. D. |
| Pagination | 177 p. |
| University | Oregon State University |
| City | Corvallis, Or. |
| Type of Work | Doctoral Dissertation |
| Call Number | OSU Libraries: Digital Open Access |
| Keywords | Alsea River, North Fork Alsea River, Lint Creek, Crooked Creek, Alsea Fish Hatchery, Steelhead trout = Oncorhynchus mykiss, developmental stages, life history information, physiology, photoperiod, water temperature, endocrinology |
| Notes | The critical transformation from parr to smolts enables young salmon to tolerate and move into salt water. This doctoral dissertation is a study of that metamorphosis. The author studied the effects of constant and variable photoperiods and variations in water temperature. Fish were released into Lint Creek and Crooked Creek and later recaptured. Possible changes in thyroid activity were investigated. Major professor was James D. Hall. |
| URL | https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/4x51hp125 |
