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

EPSCoR-ACE
Primary

Funding
NSF

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

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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.

Complete

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 Contacts
Name: Sanjay Pyare
Email: sanjay.pyare@uas.alaska.edu
Primary Organizations
Type
EPSCoR - Alaska Adapting to Changing Environments
Academic

Funding Organization
Type
EPSCoR - Alaska Adapting to Changing Environments
Academic

Other Organizations
National Science Foundation

Regions
Southeast

Collections
Southeast Test Case

Direct Record Link
http://southeast.epscor.alaska.edu/catalog/entries/8833-movement-patterns-and-distributional-shifts-of
Direct Full Map Link
http://southeast.epscor.alaska.edu/catalog/entries/8833-movement-patterns-and-distributional-shifts-of/map