Minihumps: Characterizing a Coastal British Columbia Kokanee Population Recently Derived due to Anthropogenic Environmental Change
Year: 2017
Type: dissertation
Abstract: Sockeye Salmon have high levels of intraspecific diversity exhibiting multiple life histories and forms that allow it to make use of diverse and dynamic environments. Kokanee is the freshwater resident form of Sockeye Salmon. The Mini Hump Creek kokanee population, which inhabits a coastal lake in British Columbia, shares morphological features similar to the unique Black kokanee ecotype found in three populations from Japan and British Columbia. Unlike black kokanee, Mini Hump Creek kokanee spawn in shallow creeks. The evolution of the Mini Hump kokanee life history and morphological traits are potentially a response to environmental changes including water level changes and barriers to migration, which originated with logging and dam building in the 20th century. Genetic analysis using microsatellites confirms that the population clusters with other coastal kokanee in British Columbia, yet is genetically distinct from the coastal kokanee populations and is independent from other black kokanee populations.
Source: TSpace (University of Toronto)
Author: Mackenzie Cole Bartlett
Language: English
Subfield: Genetics
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W2887737498