D1 West Transect – 2012

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Detailed Description

Permanent Site: D1 West Transect; Depth: 10.3 Meters (33.8 Feet); Distance from river mouth: 0.2 Kilometers (0.1 Miles); Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.15115998,-123.56801602; Site Description: This site is right off the mouth of the river. Substrate is mainly gravel with some sand. All annual species of seaweeds are gone except for a few small reds (0:51, 1:00 seconds. Stalks of the perennial seaweed Pterygophora californica (0:22, 1:21, 1:44 seconds) are present but have almost no green growth. Invertebrates are present but not abundant. Invertebrates seen on video: blood sea star Henricia leviuscula leviuscula (1:36 seconds). A ratfish (Hydrolagus colliei) appears at 0:57 seconds.


Date Taken:

Length: 00:01:59

Lat / Long: 48.151159980000 / -123.568016020000

Location Taken: US

Video Credits

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