L1 West Transect – 2014

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Detailed Description

Permanent Site: L1 West Transect; Depth: 11.0 Meters (36.2 Feet); Distance from river mouth: 2.3 Kilometers (1.4 Miles) west; Pre/Post Dam Removal: 3 years post-dam removal; Lat/Long: 48.13957527,-123.59427175; Site Description: This transect is medium depth. The first 20 meters contains scattered boulders (0:18 seconds). Where there are no boulders, substrate is still mainly fine sediment/sand/mud. Seaweed is still gone except for small reds (0:31 seconds) and a few Agarum fimbriatum growing on boulders (0:17, 1:18 seconds) which are also covered in articulated coralline algae (0:04 seconds). Several species of feather duster tubeworms, mainly Schizobranchia insignis (0:51, 1:10 seconds) are abundant. Invertebrates seen on video: hairy triton snail Fusitriton oregonensis (0:24seconds); sand-rose anemone Urticina columbiana (0:41 seconds); truncate softshell clam Mya truncata (small siphon at 1:44 seconds).


Date Taken:

Length: 00:02:06

Lat / Long: 48.139575270000 / -123.594271750000

Location Taken: US

Video Credits

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