A2 West Transect – 2014

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Detailed Description

Permanent Site: A2 West Transect; Depth: 12.6 Meters (Feet 41.5); Distance from river mouth: Kilometers 1.8 (1.1 Miles); Pre/Post Dam Removal: 3 years post-dam removal; Lat/Long: 48.14130295, -123.5883331; Site Description: One of our deeper sites at over 40 feet. Sediment is primarily sand/sandy mud with scattered boulders. Seaweeds are absent except for a couple Agarum fimbriatum (0:41 seconds) growing among boulders. The sandy substrate is covered in a thick, brownish layer of diatoms (a single-celled alga). Feather duster tubeworms are abundant, including Eudistylia vancouveri, Schizobranchia insignis (0:16, 0:25, 1:03 seconds) and Eudistylia polymorpha. Other invertebrates seen on video: sand-rose anemone Urticina columbiana (0:52 seconds), feather duster tubeworm Bispira sp. (1:09 seconds). Elwha River Nearshore, Strait of Juan de Fuca, Washington, USA

Details

Image Dimensions: 480 x 360

Date Taken:

Length: 00:01:16

Lat / Long: 48.141302950000 / -123.588333100000

Location Taken: US

Video Credits

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

Transcript

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