Featured Research

from universities, journals, and other organizations

Strange vent-fellows: Chemosynthetic shrimp, tubeworms together for first time at hydrothermal vent

Date:
September 14, 2011
Source:
National Oceanic and Atmospheric Administration
Summary:
Ocean explorers observed two species of marine life scientists believe have never before been seen together at a hydrothermal vent -- chemosynthetic shrimp and tubeworms. They also observed the first known live tubeworms ever seen at a hydrothermal vent in Atlantic waters.

Chemosynthetic bacteria living inside the tubeworms derive energy from chemicals emitted in the hot water of hydrothermal vents. This was the first live tubeworm seen at a hydrothermal vent site in Atlantic waters.
Credit: Image courtesy of National Oceanic and Atmospheric Administration

Ocean explorers on NOAA Ship Okeanos Explorer observed two species of marine life scientists believe have never before been seen together at a hydrothermal vent -- chemosynthetic shrimp and tubeworms. They also observed the first known live tubeworms ever seen at a hydrothermal vent in Atlantic waters. The discoveries were made August 5-15 during an expedition to the Mid-Cayman Rise south of Grand Cayman Island in the Caribbean.

Related Articles


"On the very first ROV, or remotely-operated vehicle, dive, we observed abundant shrimp of a species different in appearance from other Mid-Atlantic Ridge species," said Professor Paul Tyler, Ph.D., a marine biologist from the University of Southampton in the United Kingdom who was aboard Okeanos Explorer. "These shrimp had characteristics previously seen only on shrimp containing chemosynthetic bacteria, and we identified them as such."

"During the ROV's second dive, we were witness to the first discovery of a live hydrothermal tubeworm in the Atlantic," said expedition Science Lead Chris German, Ph.D., chief scientist for the National Deep Submergence Facility at the Woods Hole Oceanographic Institution in Massachusetts. "I will take that home as my personal key discovery moment for the cruise."

The two discoveries blended into what German described as an even more remarkable discovery. "Not only did we see extensive tube worm communities of differing sizes and shapes across the length and breadth of a large hydrothermal vent field, but we observed for the first time anywhere, chemosynthetic shrimp and tubeworms inhabiting the same hydrothermal site," he said.

"The significance of these observations is that the iconic symbol of Pacific vents is the tubeworm, while the iconic symbol of Atlantic vents is the vent shrimp," added Tyler. "To find both together has important implications for the evolution of vent communities in the Caribbean as the Atlantic became separated from the Pacific some five million years ago."

Chemosynthetic tubeworms and shrimp are unlike most other life on Earth that are photosynthetic -- relying on energy from the sun. These new hydrothermal animals, by contrast, exist on the deep and dark ocean floor where no sunlight penetrates. They derive energy instead, from chemicals that rise in the hot water of hydrothermal vents making them chemosynthetic.

Tubeworms rising six feet from the seafloor were first discovered in 1977 next to hydrothermal vents in Pacific waters at the Galapagos near where the underwater tectonic plates spread. Since then, smaller tubeworms have been found at seafloor cold seeps in the Gulf of Mexico, but until this discovery, have not been observed at vents in the Atlantic.

The expedition team used a new model of telepresence-enabled ocean exploration. Few scientists and a larger number of technicians were aboard the ship, however most of the scientists were on watch or on call ashore at a network of Exploration Command Centers that are connected to the ship's sensors, systems and people in near-real time by satellite and high-speed Internet. Scientists ashore participated from centers at the University of Rhode Island and Woods Hole, and other scientists in California, Pennsylvania, Germany, Canada, Portugal and the United Kingdom participated via live video feeds and some through online instant messaging. They played a key role by identifying biological, chemical and geological features shown in ROV images or revealed in data from ocean sensors thousands of miles away.


Story Source:

The above story is based on materials provided by National Oceanic and Atmospheric Administration. Note: Materials may be edited for content and length.


Cite This Page:

National Oceanic and Atmospheric Administration. "Strange vent-fellows: Chemosynthetic shrimp, tubeworms together for first time at hydrothermal vent." ScienceDaily. ScienceDaily, 14 September 2011. <www.sciencedaily.com/releases/2011/09/110913212932.htm>.
National Oceanic and Atmospheric Administration. (2011, September 14). Strange vent-fellows: Chemosynthetic shrimp, tubeworms together for first time at hydrothermal vent. ScienceDaily. Retrieved February 27, 2015 from www.sciencedaily.com/releases/2011/09/110913212932.htm
National Oceanic and Atmospheric Administration. "Strange vent-fellows: Chemosynthetic shrimp, tubeworms together for first time at hydrothermal vent." ScienceDaily. www.sciencedaily.com/releases/2011/09/110913212932.htm (accessed February 27, 2015).

Share This


More From ScienceDaily



More Earth & Climate News

Friday, February 27, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Winter Storm Means Dangerous Driving in South

Winter Storm Means Dangerous Driving in South

AP (Feb. 26, 2015) A new winter storm is stretching across the south, making travel treacherous throughout the region. (Feb. 26) Video provided by AP
Powered by NewsLook.com
New York City Surrounded by Ice Floes

New York City Surrounded by Ice Floes

AP (Feb. 25, 2015) The freezing temperatures that have plagued much of the eastern U.S. haven&apos;t spared New York City. The waterways around the island of Manhattan are filled with ice. (Feb. 25) Video provided by AP
Powered by NewsLook.com
Raw: Widespread Flooding in Northern Bolivia

Raw: Widespread Flooding in Northern Bolivia

AP (Feb. 25, 2015) Bolivian Vice President Alvaro Garcia surveyed severe flood damage in the northern province of Pando, as people were evacuated from partially submerged houses by boat. (Feb. 25) Video provided by AP
Powered by NewsLook.com
The Amazon Keeps Its Green Thanks To The Sahara Desert

The Amazon Keeps Its Green Thanks To The Sahara Desert

Newsy (Feb. 25, 2015) Satellite data shows the Amazon rainforest supports its lush flora with a little help from Sahara Desert dust. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins