Permanent Site: A1 East Transect; Depth: 8.4 Meters (27.5 Feet); Distance from river mouth: 1.8 Kilometers (1.1 Miles) West; Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.13870775, -123.5855312; Site Description: Transect is in eastern part of Freshwater Bay. Sediment is primarily sand/sandy mud with an occasional boulder. Seaweeds are sparse.
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Permanent Site: A1 East Transect; Depth: 8.4 Meters (27.5 Feet); Distance from river mouth: 1.8 Kilometers (1.1 Miles) West; Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.13870775, -123.5855312; Site Description: Transect is in eastern part of Freshwater Bay. Sediment is primarily sand/sandy mud with an occasional boulder. Seaweeds are sparse.
Permanent Site: D1 East Transect; Depth: 10.0 Meters (32.8 Feet); Distance from river mouth: 0.2 Kilometers (0.1 Miles); Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.15115998,-123.56734404; Site Description: This site is right off the mouth of the river. Substrate is still mainly gravel with some sand. All annual species of seaweeds are gone.
Permanent Site: D1 East Transect; Depth: 10.0 Meters (32.8 Feet); Distance from river mouth: 0.2 Kilometers (0.1 Miles); Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.15115998,-123.56734404; Site Description: This site is right off the mouth of the river. Substrate is still mainly gravel with some sand. All annual species of seaweeds are gone.
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.
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.
Permanent Site: A1 West Transect; Depth: 8.4 Meters (27.7 Feet); Distance from river mouth: 1.9 Kilometers (1.2 Miles) West; Pre/Post Dam Removal: 10 months 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.
Permanent Site: A1 West Transect; Depth: 8.4 Meters (27.7 Feet); Distance from river mouth: 1.9 Kilometers (1.2 Miles) West; Pre/Post Dam Removal: 10 months 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.
Permanent Site: D2 West Transect; Depth: 12.8 Meters (41.9 Feet); Distance from river mouth: 0.3 Kilometers (0.2 Miles); Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.15233001,-123.56896603; Site Description: This site is right off the mouth of the river. Substrate is mainly gravel with some sand.
Permanent Site: D2 West Transect; Depth: 12.8 Meters (41.9 Feet); Distance from river mouth: 0.3 Kilometers (0.2 Miles); Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.15233001,-123.56896603; Site Description: This site is right off the mouth of the river. Substrate is mainly gravel with some sand.
Permanent Site: A2 West Transect; Depth: 12.9 Meters (Feet 42.2); Distance from river mouth: Kilometers 1.8 (1.1 Miles); Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.14130295, -123.5883331; Site Description: One of our deeper sites at over 40 feet. Sediment is primarily sand/sandy mud with a few scattered boulders.
Permanent Site: A2 West Transect; Depth: 12.9 Meters (Feet 42.2); Distance from river mouth: Kilometers 1.8 (1.1 Miles); Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.14130295, -123.5883331; Site Description: One of our deeper sites at over 40 feet. Sediment is primarily sand/sandy mud with a few scattered boulders.
This fast paced, one minute trailer, promotes the award winning USGS video ‘Tracking Pacific Walrus’
This fast paced, one minute trailer, promotes the award winning USGS video ‘Tracking Pacific Walrus’
![Tracking Pacific Walrus: Expedition to the Shrinking Chukchi Sea Ice](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/video/Tracking%20Pacific%20Walrus_%20Expedition%20to%20the%20Shrinking%20Chukchi%20Sea%20Ice.png?itok=W-BP6psA)
Summer ice retreat in the Chukchi Sea between Alaska and Russia is a significant climate change impact affecting Pacific Walruses, which are being considered for listing as a threatened species. This twelve minute video follows walruses in their summer sea ice habitat and shows how USGS biologists use satellite radio tags to track their movements and behavior.
Summer ice retreat in the Chukchi Sea between Alaska and Russia is a significant climate change impact affecting Pacific Walruses, which are being considered for listing as a threatened species. This twelve minute video follows walruses in their summer sea ice habitat and shows how USGS biologists use satellite radio tags to track their movements and behavior.
Footage of Pacific Walrus, Sea ice, Scientists Tagging Walruses With Radio Tags, Tracking animation.
Footage of Pacific Walrus, Sea ice, Scientists Tagging Walruses With Radio Tags, Tracking animation.
Permanent Site: C1 West Transect; Depth: Meters (Feet); Distance from river mouth: 0.7 Kilometers (0.4 Miles); Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.14525225,-123.57361291; Site Description: Substrate is entirely sand. Brown seaweeds are absent and only a few small red seaweeds remain (0:46, 0:56 seconds).
Permanent Site: C1 West Transect; Depth: Meters (Feet); Distance from river mouth: 0.7 Kilometers (0.4 Miles); Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.14525225,-123.57361291; Site Description: Substrate is entirely sand. Brown seaweeds are absent and only a few small red seaweeds remain (0:46, 0:56 seconds).
![Under Siege: Battling Flying Carp and Giant Pythons and How Science Can Help video thumbnail: Under Siege: Battling Flying Carp and Giant Pythons and How Science Can Help](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/July_PLS_20120808.jpg?itok=_8AA1LI8)
Over the last several decades, non-native species have continued to invade sensitive ecosystems in the United States. Two high-profile species, Asian carp in the Midwest and Burmese pythons in the Everglades, are the focus of much attention by decision makers, the public and the media.
Over the last several decades, non-native species have continued to invade sensitive ecosystems in the United States. Two high-profile species, Asian carp in the Midwest and Burmese pythons in the Everglades, are the focus of much attention by decision makers, the public and the media.
![USGS spawning habitat restoration for the State- and Provincially-threatened lake sturgeon in the international St. Clair River. video thumbnail: USGS spawning habitat restoration for the State- and Provincially-threatened lake sturgeon in the international St. Clair River.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/Sturgeon_2012.jpg?itok=18EiBpVs)
USGS spawning habitat restoration for the State- and Provincially-threatened lake sturgeon in the international St. Clair River.
linkOn May 25, 2012, the USGS Great Lakes Science Center Dive Team documented first ever egg deposition by State- and Provincially-threatened lake sturgeon on a man-made spawning reef constructed in the Middle Channel of the St. Clair River Area of Concern, while the reef was still being constructed.
USGS spawning habitat restoration for the State- and Provincially-threatened lake sturgeon in the international St. Clair River.
linkOn May 25, 2012, the USGS Great Lakes Science Center Dive Team documented first ever egg deposition by State- and Provincially-threatened lake sturgeon on a man-made spawning reef constructed in the Middle Channel of the St. Clair River Area of Concern, while the reef was still being constructed.
![USGS spawning habitat restoration for the State- and Provincially-threatened lake sturgeon in the international St. Clair River. video thumbnail: USGS spawning habitat restoration for the State- and Provincially-threatened lake sturgeon in the international St. Clair River.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/Sturgeon_2012_0.jpg?itok=cp6bKyx6)
USGS spawning habitat restoration for the State- and Provincially-threatened lake sturgeon in the international St. Clair River.
linkOn May 25, 2012, the USGS Great Lakes Science Center Dive Team documented first ever egg deposition by State- and Provincially-threatened lake sturgeon on a man-made spawning reef constructed in the Middle Channel of the St. Clair River Area of Concern, while the reef was still being constructed.
USGS spawning habitat restoration for the State- and Provincially-threatened lake sturgeon in the international St. Clair River.
linkOn May 25, 2012, the USGS Great Lakes Science Center Dive Team documented first ever egg deposition by State- and Provincially-threatened lake sturgeon on a man-made spawning reef constructed in the Middle Channel of the St. Clair River Area of Concern, while the reef was still being constructed.
Early cherry blossoms and flower blooms and record high temperatures nationwide highlight a phenomenon everyone already seems to know, but science has confirmed -- spring is coming earlier in the year almost everywhere. During this lecture, Dr.
Early cherry blossoms and flower blooms and record high temperatures nationwide highlight a phenomenon everyone already seems to know, but science has confirmed -- spring is coming earlier in the year almost everywhere. During this lecture, Dr.
In this episode, we talk about organic carbon. The benefit of studying carbon extends to many issues, including tracing mercury contamination or investigating disinfection by-products in drinking water treatment. It is amazing what can be discovered by monitoring the volume and flux of carbon through the environment.
In this episode, we talk about organic carbon. The benefit of studying carbon extends to many issues, including tracing mercury contamination or investigating disinfection by-products in drinking water treatment. It is amazing what can be discovered by monitoring the volume and flux of carbon through the environment.
![Record-Breaking Burmese Python (17 feet, 7 inches, 87 eggs) Captured by The USGS, B-roll video thumbnail: Record-Breaking Burmese Python (17 feet, 7 inches, 87 eggs) Captured by The USGS, B-roll](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/augPython_20120814.jpg?itok=DcpGhEKb)
Big Ol‘ Gal
In this episode, we follow a group of students from the Jane Goodall Environmental Middle School on a class trip to Pintail Marsh at the Ankeny National Wildlife Refuge. There they join USGS ecologist Tara Chestnut to investigate and sample for the amphibian chytrid fungus.
In this episode, we follow a group of students from the Jane Goodall Environmental Middle School on a class trip to Pintail Marsh at the Ankeny National Wildlife Refuge. There they join USGS ecologist Tara Chestnut to investigate and sample for the amphibian chytrid fungus.
![Bat White-nose Syndrome: There is a New Fungus Among Us By Dr. David Blehert video thumbnail: Bat White-nose Syndrome: There is a New Fungus Among Us By Dr. David Blehert](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/03132012_PLS.jpg?itok=u_HRUzDR)
Since first discovered in 2007 in New York, white-nose syndrome has spread to 16 states, including Virginia and Maryland, and four Canadian provinces. The disease is estimated to have killed over five million hibernating bats.
Since first discovered in 2007 in New York, white-nose syndrome has spread to 16 states, including Virginia and Maryland, and four Canadian provinces. The disease is estimated to have killed over five million hibernating bats.
![The View from Space: Tracking Forty Years of Global Changes video thumbnail: The View from Space: Tracking Forty Years of Global Changes](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/Landsat.jpg?itok=7-mBhg-4)
For nearly 40 years, Landsat and other Earth observing satellites have been silently orbiting the globe collecting high quality images that document the condition of our changing planet. Remote sensing images provide an unprecedented long-term, impartial view of the Earth's cities and natural resources. Dr.
For nearly 40 years, Landsat and other Earth observing satellites have been silently orbiting the globe collecting high quality images that document the condition of our changing planet. Remote sensing images provide an unprecedented long-term, impartial view of the Earth's cities and natural resources. Dr.
![Elwha River floating weir: a tool to study adult salmon during and following dam removal video thumbnail: Elwha River floating weir: a tool to study adult salmon during and following dam removal](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/Weir_Elwha.jpg?itok=eyT-Xv3l)
This video introduces a multi-agency team of scientists and their project to install and operate a resistance board floating weir in the Elwha River. The weir is a fish trap used within a larger program for monitoring salmon populations in the Nation's largest dam removal and river restoration project.
This video introduces a multi-agency team of scientists and their project to install and operate a resistance board floating weir in the Elwha River. The weir is a fish trap used within a larger program for monitoring salmon populations in the Nation's largest dam removal and river restoration project.
The U.S. Geological Survey’s Western Fisheries Research Center in Seattle, Washington is a state-of-the-art laboratory operating on the cutting edge of fish science. Work at the lab falls into three broad categories, ecosystem studies, studies of invasive species, and studies of disease in fish.
The U.S. Geological Survey’s Western Fisheries Research Center in Seattle, Washington is a state-of-the-art laboratory operating on the cutting edge of fish science. Work at the lab falls into three broad categories, ecosystem studies, studies of invasive species, and studies of disease in fish.