C2 East Transect – 2013

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Detailed Description

Permanent Site: C2 East Transect; Depth: 15.9 Meters (Feet 52.2); Distance from river mouth: 0.7 Kilometers (0.4 Miles); Pre/Post Dam Removal: 2 years post-dam removal; Lat/Long: 48.147841,-123.57596074; Site Description: One of our deepest sites. Substrate is all muddy sand. Seaweed is absent. Featherduster tubeworms, mainly Eudistylia vancouveri (0:35 seconds) and Schizobranchia insignis (1:54 seconds), are present but scarce compared to previous years. Most common invertebrate are geoduck clams Panopea generosa (0:43, 1:03, 1:19 seconds) which have likely always been there but are easier to observe their siphons (large, oval indentations) in a muddy sand substrate. Other invertebrates seen on video: blood sea star Henricia leviuscula leviuscula (2:22 seconds).


Date Taken:

Length: 00:02:29

Lat / Long: 48.147841000000 / -123.575960740000

Location Taken: US

Video Credits

Editor: Chloe Dawson
USGS Contact: Nancy Elder, Fishery Biologist, Marrowstone Marine Field Station, (nelder@usgs.gov)