Search Results - "Dempson, JBrian"

Assessing the use of different marine growth zones of adult Atlantic salmon scales for studying marine trophic ecology with stable isotope analysis by Dixon, Heather J., Dempson, J. Brian, Power, Michael

“…•Atlantic salmon scale architecture has biasing effects on stable isotope values.•Different scale growth zones were analysed for stable isotopes to assess this…”
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Genetic mixed stock analysis of an interceptory Atlantic salmon fishery in the Northwest Atlantic by Bradbury, Ian R., Hamilton, Lorraine C., Chaput, Gerald, Robertson, Martha J., Goraguer, Herlé, Walsh, Arthur, Morris, Vicki, Reddin, David, Dempson, J. Brian, Sheehan, Timothy F., King, Timothy, Bernatchez, Louis

“…Interceptory fisheries represent an ongoing threat to migratory fish stocks particularly when managed in the absence of stock specific catch and exploitation…”
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General Effects of Climate Change on Arctic Fishes and Fish Populations by Reist, James D., Wrona, Frederick J., Prowse, Terry D., Power, Michael, Dempson, J. Brian, Beamish, Richard J., King, Jacquelynne R., Carmichael, Theresa J., Sawatzky, Chantelle D.

“…Projected shifts in climate forcing variables such as temperature and precipitation are of great relevance to arctic freshwater ecosystems and biota. These…”
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An Overview of Effects of Climate Change on Selected Arctic Freshwater and Anadromous Fishes by Reist, James D., Wrona, Frederick J., Prowse, Terry D., Power, Michael, Dempson, J. Brian, King, Jacquelynne R., Beamish, Richard J.

“…Arctic freshwater and diadromous fish species will respond to the various effects of climate change in many ways. For wide-ranging species, many of which are…”
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Ecological influences on the difference in delta 15N and delta 13C values between fish tissues: implications for studies of temporal diet variation by Michaud, Wendy K, Dempson, JBrian, Reist, James D, Power, Michael

“…Temporal diet changes can be detected by comparing delta 13C and delta 15N values between tissues with different isotopic turnover times. However, other…”
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Changes in growth patterns of wild Arctic charr (Salvelinus alpinus (L.)) in response to fluctuating environmental conditions by Michaud, Wendy K, Dempson, J. Brian, Power, Michael

“…Several studies have revealed relationships between annual size-at-catch and various climatic factors for anadromous Arctic charr (Salvelinus alpinus) captured…”
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Stable isotope analysis of marine feeding signatures of Atlantic salmon in the North Atlantic by Dempson, J. Brian, Braithwaite, Victoria A., Doherty, Denis, Power, Michael

“…Dempson, J. B., Braithwaite, V. A., Doherty, D., and Power, M. 2010. Stable isotope analysis of marine feeding signatures of Atlantic salmon in the North…”
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Distribution and biological characteristics of Atlantic salmon (Salmo salar) at Greenland based on the analysis of historical tag recoveries by Reddin, David G., Hansen, Lars Petter, Bakkestuen, Vegar, Russell, Ian, White, Jonathan, Potter, E. C. E. (Ted), Dempson, J. Brian, Sheehan, Timothy F., Ó Maoiléidigh, Niall, Smith, Gordon W., Isaksson, Arni, Jacobsen, Jan Arge, Fowler, Mark, Mork, Kjell Arne, Amiro, Peter

“…Reddin, D. G., Hansen, L. P., Bakkestuen, V., Russell, I., White, J., Potter, E. C. E., Dempson, J. B., Sheehan, T. F., Ó Maoiléidigh, N., Smith, G. W.,…”
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Latitudinal variation in growth among Arctic charr in eastern North America: evidence for countergradient variation by Chavarie, Louise, Dempson, J. Brian, Schwarz, C. J, Reist, J. D, Power, G, Power, M

“…Biological data from 66 populations of Arctic charr, Salvelinus alpinus, from eastern North America were analysed to test the applicability of the…”
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Characterizing the trophic position and shift in Atlantic salmon (Salmo salar) from freshwater to marine life-cycle phases using stable isotopes by Dixon, Heather J, Power, Michael, Dempson, JBrian, Sheehan, Timothy F, Chaput, Gerald

“…Dixon, H. J., Power, M., Dempson, J. B., Sheehan, T. F., and Chaput, G. 2012. Characterizing the trophic position shift in Atlantic salmon (Salmo salar) from…”
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Development of a species-specific fractionation equation for Arctic charr (Salvelinus alpinus (L.)): an experimental approach by Godiksen, Jane A, Svenning, Martin-A, Dempson, J. Brian, Marttila, Maare, Storm-Suke, Andrea, Power, Michael

“…A species-specific fractionation equation for Arctic charr (Salvelinus alpinus (L.)) was developed experimentally for use in ecological studies of…”
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The marine temperature and depth preferences of Arctic charr (Salvelinus alpinus) and sea trout (Salmo trutta), as recorded by data storage tags by RIKARDSEN, AUDUN H., DISERUD, OLA H., ELLIOTT, J. MALCOLM, DEMPSON, J. BRIAN, STURLAUGSSON, JOHANNES, JENSEN, ARNE J.

“…Eleven Arctic charr (Salvelinus alpinus) (370–512 mm) and eight sea trout (Salmo trutta) (370–585 mm in length) were tagged externally or internally with…”
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Thermal habitat use and juvenile growth of Svalbard Arctic charr: evidence from otolith stable oxygen isotope analyses by Godiksen, Jane A., Power, Michael, Borgstrøm, Reidar, Dempson, J. Brian, Svenning, Martin A.

“…–  Stable oxygen isotopes (δ18O) derived from otoliths were used to estimate mean annual water temperatures experienced by individual Svalbard Arctic charr,…”
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Effects of Climate Change and UV Radiation on Fisheries for Arctic Freshwater and Anadromous Species by Reist, James D., Wrona, Frederick J., Prowse, Terry D., Dempson, J. Brian, Power, Michael, Köck, Günter, Carmichael, Theresa J., Sawatzky, Chantelle D., Lehtonen, Hannu, Tallman, Ross F.

“…Fisheries for arctic freshwater and diadromous fish species contribute significantly to northern economies. Climate change, and to a lesser extent increased…”
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Ecological segregation within and among Arctic char morphotypesin Gander Lake, Newfoundland by Power, Michael, O’Connell, Michael F., Dempson, J. Brian

“…Stable isotopes of carbon and nitrogen were used to examine differences in the feeding ecology of sympatric morphotypes of Arctic char, Salvelinus alpinus,…”
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Spatial and temporal variability in the diet of anadromous Arctic charr, Salvelinus alpinus, in northern Labrador by DEMPSON, J. Brian, SHEARS, Milton, BLOOM, Marc

“…Spatial and temporal variation in the diet of anadromous Arctic charr, Salvelinus alpinus, was determined from over 2500 prey-containing stomachs collected…”
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Ecology and Trophic Relationships of the Fishes of Gander Lake, a Large, Deep, Oligotrophic Lake in Newfoundland, Canada by O'Connell, Michael F., Dempson, J. Brian, Power, Michael

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The biology of Arctic charr, Salvelinus alpinus, of Gander Lake, a large, deep, oligotrophic lake in Newfoundland, Canada by O'CONNELL, Michael F, DEMPSON, J. Brian

“…Resident Arctic charr, Salvelinus alpinus, are widespread throughout the island of Newfoundland. This study examines aspects of the biology and spatial and…”
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