A1 West Transect – 2015

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Detailed Description

Permanent Site: A1 West Transect; Depth: 8.7 Meters (28.5 Feet); Distance from river mouth: 1.9 Kilometers (1.2 Miles) West; Pre/Post Dam Removal: 4 years post-dam removal; Lat/Long: 48.13870775, -123.586203; Site Description: Transect is in eastern part of Freshwater Bay. Sediment is primarily sand/sandy mud with patches of boulders. Seaweeds have returned. A boulder devoid of growth the year before is now covered in annual seaweed (0:18 seconds). An immature bull kelp Nereocystis luetkeana is present (1:09 seconds). The first 20 meters of the transect is full of dead clam shells. Feather duster tubeworms Eudistylia vancouveri are present along the entire transect, some of them surrounded by the tubeworm Schizobranchia insignis (1:01 seconds) and, again, some by red algae (1:08 seconds). Invertebrates seen on video: hermit crab Pagurus armatus (0:08 seconds); a clump of eggs from the opalescent squid Loligo opalescens (0:36 seconds).
 

Details

Date Taken:

Length: 00:01:30

Lat / Long: 48.138707750000 / -123.586203000000

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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