J1 West Transect – 2017

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Detailed Description

Permanent Site: J1 West Transect; Depth: 9.2 Meters (30.2 Feet); Distance from river mouth: 6.6 Kilometers (4.1 Miles) east; Pre/Post Dam Removal: 6 years post-dam removal; Lat/Long: 48.13607725,-123.48002186; Site Description: This site is medium depth. Substrate is mainly a gravel/sand mixture. Visibility was poor this day. Both red (0:48, 1:25 seconds) and brown seaweed growth is dense and appears to be at pre-dam removal levels. Six species of brown seaweed were recorded, consisting mainly of the perennial seaweed Pterygophora californica (0:32. 1:47 seconds) and Saccharina spp. (0:12 seconds). Bull kelp (Nereocystis luetkeana) was common. Two tubeworm species are still very abundant, Eudistylia vancouveri and Schizobranchia insignis, as well as butter clams (Saxidomus gigantea).


Date Taken:

Length: 00:01:52

Location Taken: Elwha River, WA, US

Video Credits

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