Videos

On 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.

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.

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.

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.

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.

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.

This clip shows a pair of wedge-tailed shearwaters (Puffinus pacificus) as imaged with a camera sensitive to near infrared light. The shearwaters appear out of the night sky at a distance of about 100 meters, and fly along the coast directly towards the camera. This clip demonstrates the application of high-resolution cameras to image nocturnal seabird activity.

Female Pacific walruses and their calves traditionally spend summers far from shore, diving for benthic invertebrates over the shallow continental shelf waters of the Chukchi Sea. These female walruses and their calves prefer to rest between forage bouts on sea ice drifting above their feeding grounds.

Permanent Site: D1 East Transect; Depth: 9.4 Meters (30.9 Feet); Distance from river mouth: 0.2 Kilometers (0.1 Miles); Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.15115998,-123.56734404; 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: 1 month pre-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. Seaweed is abundant.

Permanent Site: 4SP1 - East Transect; Depth: 6.1 Meters (19.9 Feet); Distance from river mouth: 0.8 Kilometers (0.5 Miles) East; Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.15257, -123.556704; Site Description: Predominantly a high current site with gravel/cobble substrate covered in seaweeds.

Permanent Site: C2 East Transect; Depth: 16.5 Meters (Feet 54); Distance from river mouth: 0.7 Kilometers (0.4 Miles); Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.147841,-123.57596074; Site Description: One of our deepest sites. Mainly sand with small amounts of gravel.

Permanent Site: C2 West Transect; Depth: 16.8 Meters (Feet 55.2); Distance from river mouth: 0.7 Kilometers (0.5 Miles); Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.147841,-123.57663268; Site Description: Mainly sand with small amounts of gravel. One of our deepest sites. Mainly sand with small amounts of gravel.

Permanent Site: H1 West Transect; Depth: 5.9 Meters (Feet 19.4); Distance from river mouth: 2.4 Kilometers (1.5 Miles) east; Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.14803012,-123.53535558; Site Description: This is a shallow site and one of the farthest removed from the effects of the sediment plume outside of the control sites.

Permanent Site: D2 West Transect; Depth: 12.6 Meters (41.3 Feet); Distance from river mouth: 0.3 Kilometers (0.2 Miles); Pre/Post Dam Removal: 1 month pre-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. Seaweed is abundant.

Permanent Site: D2 East Transect; Depth: 12.1 Meters (39.8 Feet); Distance from river mouth: 0.3 Kilometers (0.2 Miles); Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.15233001,-123.56829403; Site Description: This site is right off the mouth of the river. Substrate is mainly gravel with some sand. Seaweed is abundant.

Permanent Control Site: GP2 East Transect; Depth: 12.9 Meters (42.3 Feet); Distance from river mouth: 18.8 Kilometers (11.7 Miles) east; Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.12781102,-123.31645664; Site Description: This site was established as the eastern control. Substrate is mainly a gravel sand mixture.

Permanent Control Site: GP1 East Transect; Depth: 7.4 Meters (24.2 Feet); Distance from river mouth: 19.0 Kilometers (11.8 Miles) east; Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.11852521,-123.31538047; Site Description: This site was established as the eastern control. Depth is medium-shallow.