Scale circuli patterns differentiate between hatchery-reared and wild Rutilus rutilus during evaluation of fish stocking

Authors: Britton, J.R.

Journal: Journal of Fish Biology

Volume: 77

Issue: 10

Pages: 2454-2459

eISSN: 1095-8649

ISSN: 0022-1112

DOI: 10.1111/j.1095-8649.2010.02800.x

Abstract:

Hatchery-reared and wild roach Rutilus rutilus were correctly classified to their rearing environment in a discriminant function using data on their scale circuli patterns. The discriminant function was then used to classify recaptured R. rutilus by their origin (hatchery-reared and wild) during a riverine stocking evaluation. At 8 and 18 months post-stocking, 10 and 7% of fish captured in the vicinity of the stocking site were classified as hatchery-reared. © 2010 The Author. Journal of Fish Biology © 2010 The Fisheries Society of the British Isles.

Source: Scopus