GP2 West Transect – 2014

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Detailed Description

Permanent Control Site: GP2 West Transect; Depth: 12.7 Meters (41.6 Feet); Distance from river mouth: 18.8 Kilometers (11.6 Miles) east; Pre/Post Dam Removal: 3 years post-dam removal; Lat/Long: 48.12781102,-123.31712832; Site Description: This site was established as the eastern control. Substrate is mainly a gravel/sand/cobble mixture surrounding boulders. Seaweed has become scarce, consisting mainly of small reds and only two species of browns, acid kelp Desmarestia (0:06 seconds) and Agarum fimbriatum (0:26, 0:46 seconds). A variety of invertebrates were present and the graceful decorator crab Oregonia gracilis (0:25, 1:43 seconds) was abundant. Other invertebrates seen on video: staghorn bryozoan Heteropora pacifica (yellow clumps on boulders at 0:33, 0:35 seconds), mottled sea star Evasterias troschelii (0:18seconds), cushion/slime sea star Pteraster tesselatus (smaller sea star at 0:18 seconds), blood sea star Henricia leviuscula leviuscula (0:25, 0:40, 1:01 seconds), giant sea cucumber Parastichopus californicus (1:20 seconds), unknown hermit crab wearing a Suberites spp. sponge (0:20 seconds).
 

Details

Date Taken:

Length: 00:01:53

Lat / Long: 48.127811020000 / -123.317128320000

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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