An evaluation of trout culture
In an evaluation of the efficiency of trout culture, the author presents a detailed analysis of complete loss records from 288 individual lots of trout at twenty-two hatcheries in the western United States. Summarized data are given to show the percentage loss of eggs, fry, and fingerlings by progressive one-half inch size groups. The accumulative percentage loss is also included to indicate the losses, under average hatchery conditions, between the egg stage and each successive size-group. These data cover the individual species of trout commonly reared in hatcheries; summarized data are given also for all species combined. A brief discussion of hatchery losses, natural losses, and the cost of artificial propagation is included.
Citation Information
Publication Year | 1940 |
---|---|
Title | An evaluation of trout culture |
DOI | 10.1577/1548-8659(1939)69[85:AEOTC]2.0.CO;2 |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Transactions of the American Fisheries Society |
Index ID | 70160518 |
Record Source | USGS Publications Warehouse |
USGS Organization | Western Fisheries Research Center |