Blar i forfatter "Stasko, Ashley D"

Viser treff 1-2 av 2

    • Benthic-pelagic trophic coupling in an Arctic marine food web along vertical water mass and organic matter gradients 

      Stasko, Ashley D; Bluhm, Bodil; Michel, Christine; Archambault, Philippe; Majewski, Andrew; Reist, James D; Swanson, Heidi; Power, Michael (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-26)
      Understanding drivers of benthic-pelagic coupling in Arctic marine ecosystems is key to identifying benthic areas that may be sensitive to climate-driven changes in hydrography and surface production. We coupled algal biomass and sedimentary characteristics with stable isotope data for 113 fishes and invertebrates in the Canadian Beaufort Sea and Amundsen Gulf to examine how trophic structure was ...

    • Relationships between depth and δ15N of Arctic benthos vary among regions and trophic functional groups 

      Stasko, Ashley D; Bluhm, Bodil; Reist, James D; Swanson, Heidi; Power, Michael (Journal article; Tidsskriftartikkel, 2018-03-27)
      Stable isotope ratios of nitrogen (δ<sup>15</sup>N) of benthic primary consumers are often significantly related to water depth. This relationship is commonly attributed to preferential uptake of <sup>14</sup>N from sinking particulate organic matter (POM) by microbes, and suggests that relationships between δ<sup>15</sup>N and water depth may be affected by local POM sources and flux dynamics. ...