A diver collects a long-spined sea urchin. Credit: Blake Gardner
Our employee owners were recently part of a team of detectives on a mission to discover the killer of long-spined sea urchins, Diadema antillarumy, throughout the Caribbean Sea. The infected urchins lose their spines, leaving them more vulnerable to predation or dying after a few days. In 1983 the same species experienced mass mortality with identical symptoms, but scientists were unable to discover the culprit. Forty years later, the issue resurfaced, and a team of scientists joined forces to unlock the mystery.
CSS employee owners, supporting NOAA’s Coral Reef Conservation Program and NOAA’s Office for Coastal Management, joined a team of scientists in diving to collect urchin samples at 23 sites around the Caribbean Sea. By providing the samples, the researchers were then able to examine and test the urchins and compare them to healthy urchins to determine the cause of the mortality.
Due to this rapid response, scientists determined the cause of the issue within three months
Our staff coauthored this paper documenting the process. https://www.science.org/doi/10.1126/sciadv.adg3200
Researchers examine a long-spined sea urchin. Credit: Leslie Henderson
See More CSS Insights
Expanding a Popular Flood Exposure Tool
We recently assisted our client, the National Oceanic and Atmospheric Administration’s (NOAA) Office for Coastal Management, with updating one of their most popular tools, the Coastal Flood Exposure Mapper.
New Award with University of Pittsburg
CSS has recently acquired a new award working with the University of Pittsburg. As part of this work, a team of CSS employee owners has begun testing samples for Solidification Using a Baffle in Sealed Ampoules (SUBSA), a high temperature furnace with temperature and timing control for melting samples to create different materials and alloys.…
Supporting Response Efforts Following California Fires
Following the fires that devastated Los Angeles, California and surrounding areas in January 2025, CSS employee owners were deployed to the area as a subcontractor to Weston Solutions, Inc. to assist with the response. This effort supports U.S. Environmental Protection Agency (EPA) Region 9 Superfund Technical Assessment & Response Team (START) program. Initially, a CSS…