Citation: Finley MLD, Kidd KA, Curry RA, Lescord GL, Clayden MG and O’Driscoll NJ (2016) A Comparison of Mercury Biomagnification through Lacustrine Food Webs Supporting Brook Trout (Salvelinus fontinalis) and Other Salmonid Fishes. Front. Environ. Sci. 4:23. doi: 10.3389/fenvs.2016.00023 A Comparison of Mercury Biomagnification through Lacustrine Food Webs Supporting Brook Trout (Salvelinus fo...

—Theoretical models and empirical evidence suggest that the invasion of nonnative species in freshwaters is facilitated through the interaction of three factors: habitat quality, biotic resistance, and connectivity. We measured variables that represented each factor to determine which were associated with the occurrence of nonnative brook trout Salvelinus fontinalis in Panther Creek, a tributar...

Next generation sequencing techniques have revolutionized the collection of genome and transcriptome data from nonmodel organisms. This manuscript details the application of restriction site-associated DNA sequencing (RADseq) to generate a marker-dense genetic map for Brook Trout (Salvelinus fontinalis). The consensus map was constructed from three full-sib families totaling 176 F1 individuals....

iii ACKNOWLEDGEMENTS I would like to thank my committee members Andy Danylchuk, Ben Letcher, and Steve Cadrin for their guidance, ideas and support throughout the project. A special thanks to Todd Dubreuil who put a lot of time and energy into Red Brook, led the field work, and taught me a lot along the way. Thanks also to Steve Hurley who has been passionate about brook trout for many years an...

The expression of CYP1A (cytochrome P4501A) can be induced by a large array of aromatic and organic compounds in teleost fishes. We developed a real-time quantitative PCR assay useful for measuring beta-naphthoflavone (BNF) induction of liver CYP1A mRNA in four salmonid species. First, to obtain necessary information for the design of a cRNA standard, full-length CYP1A cDNA sequences were deter...

Understanding the processes underlying diversification can aid in formulating appropriate conservation management plans that help maintain the evolutionary potential of taxa, particularly under human-induced activities and climate change. Here we assessed the microsatellite genetic diversity and structure of three salmonid species, two native (Arctic charr, Salvelinus alpinus and brown trout, S...

Low productivity in aquatic ecosystems is associated with reduced individual growth of fish and increased concentrations of methylmercury (MeHg) in fish and their prey. However, many stream-dwelling fish species can use terrestrially-derived food resources, potentially subsidizing growth at low-productivity sites, and, because terrestrial resources have lower MeHg concentrations than aquatic re...

—We made estimates of annual production of stream trout in two Lake Superior tributaries in northeastern Minnesota in 1977-1978. The Caribou River (total alkalinity, 34 mg/L as CaCO3) drains pan of the north shore of Lake Superior in an igneous rock geology. The Blackhoof River (total alkalinity, 83 mg/L) drains glacial drift and lake clay at the western end of Lake Superior. Annual production ...

—Invasions of brook trout Salvelinus fontinalis are believed to threaten the aquatic fauna native to the cold streams and lakes of western North America. Although invasion is widespread, documentation of historic versus recent invasion rates throughout drainages is lacking. We compared brook trout distributions in 1996 to those as early as 1971 for 17 streams in the upper South Fork Salmon Rive...

Reliable fish condition estimates help managers better understand ecosystem population dynamics. Therefore, our study objectives were to measure seasonal changes in percent dry weight and energy density (physiological-based measures of condition) of stream-dwelling Appalachian Brook Trout Salvelinus fontinalis, field-validate bioelectrical impedance analysis (BIA) models, and compare reliabilit...