Scientists find new coral species off California

2014-11-06 16:15
A new species of deep-sea white coral found by Noaa researchers off the coast of Sonoma County. (Noaa, AP)

A new species of deep-sea white coral found by Noaa researchers off the coast of Sonoma County. (Noaa, AP)

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San Francisco - Scientists have discovered a new species of deep-sea coral in underwater canyons off the Northern California coast, the National Oceanic and Atmospheric Administration announced on Wednesday.

A Noaa research team using small submersibles found the coral in September near national marine sanctuaries off the coast of Sonoma County, the agency said.

The coral from the genus Leptogorgia was discovered about 182m deep in the first intensive exploration of underwater canyons near the Gulf of Farallones and Cordell Bank national marine sanctuaries.

Collecting data on the 10cm-long white and red coral will help scientists determine the ecological importance of deep sea communities in the area and the threats they face, said the Farallones sanctuary's superintendent, Maria Brown.

"Deep-sea corals and sponges provide valuable refuge for fish and other marina life", Brown said. "Effective management of these ecosystems requires science-based information on their condition."

Before the research expedition two months ago, scientists knew little about the marine life in the area, Noaa said.

After multiple dives in the area, researchers also found a "highly unusual" nursery area for catsharks.

"This is a highly unusual nursery because rarely, if ever, are shark nurseries in the same area as skate nurseries," said Peter Etnoyer, a deep-sea biologist at Noaa's national centres for coastal ocean science.

Submarine canyons often extend from the continental shelf to the deep sea, and exploring them can be difficult.

The research team that made the discoveries conducted video surveys of areas that had been only documented through sonar imaging.

Read more on:    noaa  |  us  |  research  |  marine life

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