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Growth Rate of Trout in Relation to Elevation and Temperature
Author(s) -
Purkett Charles A.
Publication year - 1951
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1950)80[251:grotir]2.0.co;2
Subject(s) - trout , rainbow trout , zoology , environmental science , elevation (ballistics) , growth rate , morning , spring (device) , fishery , significant difference , hydrology (agriculture) , water level , biology , fish <actinopterygii> , geography , geology , mathematics , engineering , geotechnical engineering , mechanical engineering , statistics , botany , geometry , cartography
A study of 758 trout from the West Gallatin River indicated that growth was greater at lower elevations where the water was warmer. Rainbow trout from the upper and lower sections of the West Gallatin River showed the following differences in length at the end of each year: 0.3 inch the first year, 1.3 inch the second year, 2.1 inches the third year, 2.5 inches the fourth year, and 4.0 inches the fifth year. The growth rate of cutthroat and hybrid trout showed a similar trend. The average summer difference in water temperature (early morning), between the upper and lower stations of the West Gallatin River, was 9.6° F. Condition factors did not show significant variations between sections. A total of 184 trout from Bridger‐Spring Creek did not show significant differences in growth rate. However, water temperatures in the stream did not vary greatly.