Altering food web structure has been shown to influence mercury (Hg) concentrations in sport fish. Here, we describe a whole-system manipulation designed to assess the effectiveness of stocking relatively high-quality, low-Hg prey (rainbow trout, Oncorhynchus mykiss) as a means of increasing...
Author(s)
Lepak, J. M.; Kinzli, K. D.; Fetherman, E. R.; Pate, W. M.; Hansen, A. G.; Gardunio, E. I.; Cathcart, C. N.; Stacy, W. L.; Underwood, Z. E.; Brandt, M. M.; Myrick, C. A.; Johnson, B. M.
Publisher
NRC Research Press, Ottawa, Canada
Citation
Canadian Journal of Fisheries and Aquatic Sciences, 2012, 69, 1, pp 122-135
We studied long-term trends in catches per unit effort (CPUE; fish h-1) of four sport fish taxa in the Flathead River, Montana, following changes in hydroelectric operations at the Sliš Ksanka QispProject (SKQP; formerly Kerr Dam). Prior to 1997 SKQP operations caused frequent, unnatural flow...
Author(s)
Barfoot, C. A.; Evarts, L. A.; Lukacs, P. M.
Publisher
Northwest Scientific Association, Tacoman, USA
Citation
Northwest Science, 2018, 92, 2, pp 92-106
Methylmercury is a global pollutant of aquatic ecosystems, and monitoring programs need tools to predict mercury exposure of wildlife. We developed equations to estimate methylmercury exposure of piscivorous birds and sport fish using mercury concentrations in prey fish. We collected original data...
Author(s)
Ackerman, J. T.; Hartman, C. A.; Eagles-Smith, C. A.; Herzog, M. P.; Davis, J.; Ichikawa, G.; Bonnema, A.
Publisher
American Chemical Society, Washington, USA
Citation
Environmental Science & Technology, 2015, 49, 22, pp 13596-13604
Unintentional and illegal introductions of species disrupt food webs and threaten the success of managed sport fisheries. Although many populations of Burbot Lota lota are declining in the species' native range, a nonnative population recently expanded into Flaming Gorge Reservoir (FGR),...
Author(s)
Klobucar, S. L.; Saunders, W. C.; Budy, P.
Publisher
Taylor & Francis, Philadelphia, USA
Citation
Transactions of the American Fisheries Society, 2016, 145, 6, pp 1386-1398
After 150 years of introduction of the brown trout Salmo trutta in Himalaya, the native species' response to this globally pervasive invader, is still unknown. Here, we investigate the effects of invasion of brown trout on native snow trout Schizothorax richardsonii, one of the most primitive...
Author(s)
Aashna Sharma; Dubey, V. K.; Johnson, J. A.; Rawal, Y. K.; Kuppusamy Sivakumar
Publisher
Springer, Amsterdam, Netherlands
Citation
Biological Invasions, 2021, 23, 5, pp 1497-1515
Acid mine drainage (AMD) is a global environmental problem which has well-documented effects on the physical, chemical, biological, and ecological characteristics of waterways. Less well examined are the economic benefits generated by costly AMD remediation efforts. This research examines trout...
Author(s)
Knoche, S.; Ritchie, K.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Journal of Environmental Management, 2022, 319,
Entrainment of fish in irrigation canals is a source of mortality for sport and native fishes and can affect populations and species diversity. To reduce entrainment of wild trout, an electric barrier was installed on the South Canal, an irrigation ditch on the Gunnison River in western Colorado,...
Author(s)
Kowalski, D. A.; Gardunio, E. I.; Garvey, C. A.
Publisher
Wiley, Chichester, UK
Citation
River Research and Applications, 2022, 38, 3, pp 539-547
There has been a recent flurry of publications describing the potential effects of the COVID-19 pandemic on both commercial and recreational fisheries. As of yet, studies have only provided insights from researchers or industry experts detailing perceived consequences, or from survey data...
Author(s)
Bunt, C. M.; Jacobson, B.
Publisher
Springer, Dordrecht, Netherlands
Citation
Environmental Biology of Fishes, 2022, 105, 4, pp 499-507
It is well known that fish can learn to avoid angling gear after experiencing a catch-and-release event, that is, after a private hooking experience. However, the possible importance of social information cues and their influence on an individual's vulnerability to angling remains largely...
Author(s)
Wallerius, M. L.; Gräns, A.; Koeck, B.; Berger, D.; Sandblom, E.; Ekström, A.; Arlinghaus, R.; Johnsson, J. I.
Publisher
Wiley, Oxford, UK
Citation
Fisheries Management and Ecology, 2019, 26, 6, pp 611-620
Pacific salmon were introduced to the Great Lakes in the 1960s and now support major recreational fishery. Population declines resulting from invasive species have prompted agencies to consider diversifying sport fisheries through stocking. Atlantic salmon are native to Lake Ontario, but a small...
Author(s)
Gerig, B. S.; Chaloner, D. T.; Cullen, S. A.; Greil, R.; Kapucinski, K.; Moerke, A. H.; Lamberti, G. A.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Journal of Great Lakes Research, 2019, 45, 1, pp 160-166