Comparison of hatchery performance attributes among three strains of age-0 coaster brook trout

Eric T. Volkman, Kevin L. Pangle, Deborah A. Rajchel, Trent M. Sutton, Dale R. Bast

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


The hatchery performance attributes of three strains (Lake Nipigon [Nipigon], Sis-kiwit Bay [Siskiwit], and Tobin Harbor [Tobin]) of fingerling coaster brook trout Salvelinus fon-tinalis were compared during a 12-week laboratory experiment. Despite similar initial sizes, the final mean length and weight of Nipigon fish (94.1 mm and 9.9 g) were significantly greater than those of the Siskiwit (86.7 mm and 7.7 g) and Tobin (90.4 mm and 7.2 g) strains. There were no differences in mean specific growth rates in length and weight or mean daily growth rate in length among the strains. However, there was a difference in the mean daily absolute growth rate in weight, the Nipigon and Siskiwit strains (0.10%/d and 0.08%/d, respectively) displaying a greater rate of growth than Tobin Harbor (0.07%/d) fish. Mean survival rates (range = 97-98%) and relative weights (range = 100.1-101.1 g) did not differ significantly among the three strains. Based on our results, we recommend that these strains of fingerling coaster brook trout be reared similarly in hatchery environments and that strain selection for rehabilitation stocking purposes consider hatchery residence time and the natural genetic variation of the source population of broodstock fish.

Original languageEnglish
Pages (from-to)278-284
Number of pages7
JournalNorth American Journal of Aquaculture
Issue number4
StatePublished - Oct 2004


Dive into the research topics of 'Comparison of hatchery performance attributes among three strains of age-0 coaster brook trout'. Together they form a unique fingerprint.

Cite this