Genetic Analysis of Wisconsin Brook Trout

摘要

The authors have sought to identify key genetic parameters for identification of211u001eheritage brook trout in Wisconsin. Several factors are important in the 211u001eidentification and management of heritage populations. First, naturally occurring 211u001eregional genetic differences must be identified. Second, the history and 211u001einfluence of past stocking practices must be identified and incorporated. Third, 211u001ethe genetic impacts of severely limited habitat and small populations must be 211u001edetermined. The authors' genetic analysis included one hatchery broodstock and 211u001eseventeen wild populations (with no documented history of stocking) from 211u001eWisconsin. Populations represented every major watershed and ecoregion of the 211u001estate. An additional wild population from Iowa was included, as was the Iowa 211u001ehatchery strain. The authors used both mtDNA PCR-RFLP analysis and allozymes to 211u001egenetically categorize populations. The two genetic techniques resulted in 211u001ecomplementary, but slightly different data sets.