Photo Roundup - July-August 2021

Release Date:

A selection of coastal and ocean images and videos from across the USGS

This article is part of the July-August 2021 issue of the Sound Waves newsletter.

Sea turtle nesting habitat: Cape Hatteras and Cape Lookout National Seashores

USGS Wetland and Aquatic Research Center researchers will be surveying nesting beaches in Cape Hatteras and Cape Lookout National Seashores. They will record GPS locations for all crawls, nests, and turtles encountered/captured, and will be placing satellite tags on a subset of individuals to determine habitat use and delineate inter-nesting areas used by reproductive females. Field work for this project began in June 2021, and will continue for 3 years. Learn more

Green sea turtle hatchling heads towards the ocean

Green sea turtle hatchling heads towards the ocean. Credit: Margaret Lamont, USGS. Public domain.

Hatchling sea turtle heads to sea

Hatchling sea turtle heads to sea. Credit: Margaret Lamont, USGS. Public domain.

Hatchling sea turtle in ocean

Hatchling sea turtle swims in the ocean. Credit: Margaret Lamont, USGS. Public domain.

 

Five-year Collaborative Study Investigating Sea Turtle Nesting on Recently Nourished Beaches

Scientists RC Mickey and Dave Thompson from the USGS St. Petersburg Coastal and Marine Science Center are conducting beach surveys on nourished beaches (where sand has been added) to study influences on green sea turtle (Chelonia mydas) and loggerhead sea turtle (Caretta caretta) nesting. The scientists use a utility task vehicle (UTV) to cover a large area of beach and locate sea turtle crawls. Here, a turtle track can be seen extending down to the ocean.

This is a five-year collaborative study investigating sea turtle nesting on recently nourished beaches. The primary goal is to quantify beach parameters that may influence sea turtle nesting on nourished beaches as these beaches typically display rapid (2 to 3 years) reshaping by ocean waves. The results of the study can then be used to suggest improvements beach nourishment design such that impacts to sea turtle nesting are minimized. USGS is working with partners at US Fish and Wildlife (USFW), Florida Fish and Wildlife Conservation Commission (FWC) and University of South Florida (USF) on this National Fish and Wildlife Foundation (NFWF) funded study.

USGS's role is to map (position and elevation) the beach profile from the water line into the dune, and map turtle crawl paths at nesting decision locations using precise GPS. These GPS surveys are conducted monthly for two consecutive days during the height of sea turtle nesting season (May through September). The surveys have been conducted at four nourished beaches that also have high-density of sea turtle nesting, including Melbourne Beach, Jensen Beach, Jupiter Island, and Juno Beach. The GPS data is processed to quantify various beach parameters, including water line, dune toe, dune top, and locations of nests or false crawl apex (landward point that turtle crawled and decided not to nest) locations. 

A utility task vehicle on a beach with a calm ocean in the background at sunrise. A sea turtle track extends towards the water

The utility task vehicle (UTV) used to cover a large area of beach and locate sea turtle crawls. Here, a turtle track can be seen extending down to the ocean. Credit: David Thompson, USGS. Public domain.

a person smiles in front of an all terrain vehicle on a beach wearing a backpack

Oceanographer RC Mickey in front of the UTV carrying GPS equipment. Credit: RC Mickey, USGS. Public domain.

Green sea turtle (Chelonia mydas) nest

The pink flag marks the general nest location of a green sea turtle. You can see where she came up the beach (track to the right from the water), created the nest and laid her eggs (flag location) and then moved a bit to cover the nest, creating the large pit and the pile of sand at the nest location. Finally, she crawled back to the ocean, leaving the track to the left. Credit: David Thompson, USGS. Public domain.

 

Water Quality of San Francisco Bay Research and Monitoring Project

Since 1969, the U.S. Geological Survey has maintained a research project in the San Francisco Bay-Delta system to measure and understand how estuarine systems and tidal river deltas function and change in response to hydro-climatic variability and human activities. Learn more

A USGS scientist gathering water samples in the San Francisco Bay.

A USGS scientist collects a water sample from San Francisco Bay. Credit: USGS. Public domain.

A USGS scientist processing water samples during a San Francisco Bay sampling cruise.

A USGS scientist processing water samples during a San Francisco Bay sampling cruise. Credit: USGS. Public domain.

A USGS scientist processing data on a computer during a water sampling cruise.

A USGS scientist processes water sample data on a computer aboard USGS Research Vessel R/V Peterson. Credit: USGS. Public domain.

 

Waterfowl Ecology in Suisun Marsh and the Pacific Flyway

Suisun Marsh and the Central Valley of California contain some of the world’s most important wetlands, providing critical breeding and wintering habitat for many waterfowl species in the Pacific Flyway. Wetlands in the Suisun Marsh and wetland and agricultural habitats in the Central Valley support 10–12 million waterfowl wintering in or migrating through these two regions annually. Learn about USGS waterfowl research in this area from the USGS Western Ecological Research Center’s Project Webpage, or in this beautiful geonarrative.

Photo of Sarah Peterson holding duckling

Photo of Dr. Sarah Peterson holding a duckling. Credit: USGS. Public domain.

Coral Reef Community Calcification and Metabolism

Researchers at the USGS St. Petersburg Coastal and Marine Science Center focus on forecasting and hind-casting the future and past response of coral reef calcification and growth to changes in seawater carbonate chemistry from pre-industrial time to the year 2100. Changing ocean chemistry resulting from climate change and ocean acidification also affects coral reefs at the community level. The severity of impacts to coral reefs depends, in part, on the ability of reefs to continue growing enough to keep up with rising sea level. Learn more

two scuba divers work on scientific equipment at the bottom of the ocean

Kim Yates and Mitch Lemon, from the USGS St. Petersburg Coastal and Marine Science Center, replace the batteries on a remote sensing unit, called an Ocean Carbon System (OCS) that monitors ocean chemistry. Credit: Benjamin Drummond.

USGS bathymetric survey vessel on Lucky Peak Lake, southwestern Idaho

In 2004, about 90 migrating elk and 25 mule deer broke through thin ice and drowned as they attempted to cross the Mores Creek arm of Lucky Peak Lake upstream of the Highway 21 bridge. To prevent any similar incidents, reservoir managers and wildlife biologists needed a better understanding of water depths over a range of reservoir pool elevations. Learn more

USGS bathymetric survey vessel on Lucky Peak Lake, southwestern Idaho

U.S. Geological Survey hydrologist Taylor Dudunake pilots a research vessel equipped with bathymetric surveying equipment on Lucky Peak Lake near Boise, Idaho. Credit: Ryan Fosness, USGS Idaho Water Science Center. Public domain.

2021 North Atlantic Stepping Stones Expedition 

Join USGS researchers Jason Chaytor and Kira Mizell as they virtually participate in a NOAA Ocean Exploration expedition to the depths of the North Atlantic. The 2021 North Atlantic Stepping Stones: New England and Corner Rise Seamounts expedition runs from June 30 to July 29. At-sea and shore-based science teams will study deep-water habitats in the high seas, which are among the least understood ecosystems on Earth. Researchers use remotely operated vehicles to explore seamounts (steep underwater mountains) all without getting wet! USGS scientists Jason Chaytor and Kira Mizell are the expedition’s geology science leads. From land, they will work with a team to develop the dive plans, lead and narrate the dives for a world-wide audience, and coordinate science outcomes. This video highlights the collaboration between USGS and NOAA scientists as they explore the largely unmapped seafloor. 

Video Transcript

Videographer: Peter Pearsall, USGS. Public domain. Visit the video page for the transcript, or to access an audio-described version, or to download the video file.

Stepping Stones Part 2: Ferromanganese Nodules

During the recent dive on the New England Seamount chain off the North Atlantic coast, researchers aboard the NOAA Ocean Exploration Expedition “North Atlantic Stepping Stones” discovered a marine geological feature known as a ferromanganese (Fe-Mn) nodule field in the saddle between two peaks of Gosnold Seamount. These seamount-hosted nodules were an exciting find, since Fe-Mn crusts are more common in seamount settings. Marine Fe-Mn minerals are unique among marine rocks in that they grow slowly over millions of years, building layers and accumulating metals as they precipitate from seawater and/or sediment pore waters. The study of Fe-Mn deposits can yield clues about past climatic conditions and geologic history, shedding light on how the world’s oceans have changed over time.

Video Transcript

Videographer: Peter Pearsall, USGS. Public domain. Visit the video page for the transcript, or to access an audio-described version, or to download the video file. Read the USGS News Story about this expedition.

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Sound Waves Newsletter - July-August 2021

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Ferromanganese Nodules—2021 North Atlantic Stepping Stones Expedition

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NOAA-USGS Stepping Stones 2021 Expedition

Join USGS researchers Jason Chaytor and Kira Mizell as they virtually participate in a NOAA Ocean Exploration expedition to the depths of the North Atlantic.

The 2021 North Atlantic Stepping Stones: New England and Corner Rise Seamounts expedition runs from June 30 to July 29. At-sea and shore-based science teams will study deep-water habitats in the high seas,