EPSCoR - Alaska Adapting to Changing Environments

EPSCoR - Alaska Adapting to Changing Environments

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Movement Patterns and Distributional Shifts of Dungeness Crab (Metacarcinus magister) and English Sole (Parophrys vetulus) During Seasonal Hypoxia

Hypoxia (dissolved oxygen < 2 mg L–1) has emerged as a worldwide threat to coastal and estuarine ecosystems. Beyond direct mortality, secondary ecological impacts caused by hypoxia-driven distributional shifts may be equally important. From July–November 2009 and June–September 2010, we quantified the movement patterns of Dungeness crab (Metacarcinus magister) and English sole (Parophrys vetulus) in Hood Canal, Washington USA, a seasonally hypoxic estuary. Although highly mobile (mean cumulative distance ± SD = 11.0 ± 25.6 km, N = 60), there was little evidence of either species exhibiting large-scale directional movement out of the hypoxic region. However, Dungeness crab showed significant shifts towards shallower waters and elevation in activity in the hypoxic region, potentially increasing their vulnerability to crabbing and other indirect ecological consequences. Our findings suggest hypoxia could have a more localized impact on the mobile fauna in Hood Canal. However, more detailed information concerning the local-scale oxygen dynamics and responses of these species, such as English sole vertical movement, is essential for grasping the population and community level effects of hypoxia.

Data and Resources

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    Website :: Publisher Website

    http://link.springer.com/article/10.1007/s12237-013-9676-2/fulltext.html

Status: Complete
Type: Project
Data Types: Report
Primary Contact
Pyare, Sanjay
Email: sanjay.pyare@uas.alaska.edu
Work: 907-796-6007
Primary Agency
EPSCoR - Alaska Adapting to Changing Environments
Type
Academic

Funding Agency
EPSCoR - Alaska Adapting to Changing Environments
Type
Academic

Other Agencies
National Science Foundation

ISO Topics
biota, oceans

Geo-keywords
Southeast

Collection
Southeast Test Case

Direct Record Link
http://setc.portal.gina.alaska.edu/catalogs/11698-movement-patterns-and-distributional-shifts-of
  • 01c8ceef3d596f40f05bf496ca00d929
    Updated by Lisa
    2017-02-22 13:17:46 -0900
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    Updated by Lisa
    2016-09-12 15:02:31 -0800
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    Updated by Lisa
    2016-09-12 14:59:35 -0800
  • 01c8ceef3d596f40f05bf496ca00d929
    Published by Lisa
    2016-09-12 14:57:52 -0800
  • 01c8ceef3d596f40f05bf496ca00d929
    Updated by Lisa
    2016-09-12 14:57:26 -0800
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    New record created
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