Project: 46015ee4-835d-4fd0-a577-3b6382687453

Metadata Format
Project Title
Biological Responses to Increasing Water Temperatures in Lakes of the Barrow/Atqasuk Focus Watershed: An Interdisciplinary Bioenergetics and Contamina
Description
Interdisciplinary, collaborative study on several lakes in the Barrow-Atqasuk watershed to better understand how and to what extent continued changes in thermal regimes will affect fish growth, food web structure, and bioaccumulation of mercury.
Point of Contact(s)
LCC Network Data Steward
LCC Network Data Manager
lccdatasteward@fws.gov
Arctic Landscape Conservation Cooperative
U.S. Fish & Wildlife Service
1011 E. Tudor Rd
Anchorage, Alaska 99503
V: +1 907 7863532
staff@arcticlcc.org
http://arcticlcc.org
Arctic Landscape Conservation Cooperative
U.S. Fish & Wildlife Service
1011 E. Tudor Rd
Anchorage, Alaska 99503
V: +1 907 7863532
staff@arcticlcc.org
http://arcticlcc.org
Christian E. Zimmerman
Fisheries Biologist
USGS Alaska Science Center
4210 University Dr.
Anchorage, Alaska 99508
V: +1 907 7867071
czimmerman@usgs.gov
Heidi Swanson
Assistant Professor
Department of Biology
200 University Avenue West
Waterloo, Ontario N2L 3G1
V: +1 519 8884567 x37387
heidi.swanson@uwaterloo.ca
https://uwaterloo.ca/
Wendy Loya
LCC Coordinator
V: +1 907 786 x3532
wendy_loya@fws.gov
http://arcticlcc.org

Project Abstract

There is currently have a very poor understanding of how climate change will affect food web structure and mercury accumulation in lakes on the Arctic Coastal Plain of Alaska. In this study, researchers are addressing this knowledge gap by adopting a space-for-time approach. Fish and food web ecology, and mercury accumulation patterns, are being investigated in several lakes that represent a gradient in temperature/ice phenology of up to two ice-free weeks and 10°C. They are also comparing food web structure and rates of mercury biomagnification among the lakes, and relating these to several climate variables. Finally, they are relating past trends in mercury accumulation in lake sediments to indices of lake productivity using paleolimnological techniques applied to sediment cores.

Supplemental Info: None Provided.

Project Links

Project Keywords

  • ISO 19115 Topic Category (isoTopicCategory):
    • environment,
    • climatologyMeteorologyAtmosphere
  • Global Change Master Directory (GCMD) Science Keywords (theme):
    • BIOGEOCHEMICAL CYCLES,
    • CONTAMINANTS,
    • LAKES,
    • PERMAFROST MELT,
    • SEDIMENTATION
  • End User Types - Landscape Conservation Cooperatives (LCC End User Type):
    • Tribes,
    • Federal resource managers,
    • Academics & scientific researchers
  • Project Category - Landscape Conservation Cooperatives (LCC Project Category):
    • Conservation Design