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A2 West Transect – 2016

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Detailed Description

Permanent Site: A2 West Transect; Depth: 13.2 Meters (43.2 Feet); Distance from river mouth: Kilometers 1.8 (1.1 Miles); Pre/Post Dam Removal: 5 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 still sparse and mainly acid kelp Desmarestia (0:30, 1:00, 1:13 seconds). Bivalves are abundant, especially geoduck Panopea generosa (siphons visible in large, oval indentations left of tape at 0:18 second) and truncate softshell clams, Mya truncata. Feather duster tubeworms are still abundant, especially the species Eudistylia vancouveri (0:46 seconds), Schizobranchia insignis (0:25 seconds) and Eudistylia polymorpha. Other invertebrates seen on video: egg cases of the moon snail Euspira lewisii (1:41, 1:43 seconds). Fish: small flatfish, species unknown (0:54, 1:23). Elwha River Nearshore, Strait of Juan de Fuca, Washington, USA




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