Navigation Links
Coral algae (symbiodinium) discovered in black corals at never seen before depths

Researchers at the Hawai'i Institute of Marine Biology (HIMB), an organized research unit in the University of Hawai'i at Mānoa's School of Ocean and Earth Science and Technology have made a remarkable new discovery.

When most people envision coral, they typically think of shallow-water reef-building corals found along beaches and tropical nearshore habitats. These "typical" corals are dependent upon photosynthetic algae (also known as Symbiodinium or zooxanthellae) found in their tissues to obtain nutrients to live off of. In deeper less known waters, closely related black corals were considered to be void of these algae because of the light shortage to support photosynthesis. In fact, all black corals were considered to lack Symbiodinium (algae), because they are typically found at great depths where light levels are very low. Black corals are of substantial cultural and economic importance in Hawai'i. Some species are harvested commercially for the precious coral jewelry industry in deep waters off Maui, and black coral is considered the official gemstone of the State of Hawai'i. Even though most people have heard of black coral jewelry, very few ever get to see these corals in their natural environments because of the depths they are found in. As a result of their remote habitats, very little is known about the basic biology of black corals.

Scientists at the Hawai'i Institute of Marine Biology (HIMB), examined 14 black coral species collected between 10 and 396 m from around Hawai'i for the presence of algae using molecular and histological (tissue studies) techniques. Surprisingly, 71% of the examined species were found to contain algae, even at depths approaching 400 m. These black corals exhibited very similar traits to those of corals commonly found in shallow-water (use of algae). PhD student, Daniel Wagner at HIMB was the one who led the investigation. He states: "because black corals are predominantly found in deep and dark environments, most people assumed that they could not harbor these photosynthetic symbiotic algae. At this point we do not know how these algae are able to exist in extreme environments, and it certainly highlights how little we know about deep reefs."

This is a new and important discovery for coral biology, representing the deepest record of Symbiodinium to date. This research also implies that some members of these algae have extremely diverse habitat preferences and broad environmental ranges. The prestigious Royal Society will be publishing the full research report in their journal, Proceedings of the Royal Society B this month.


Contact: Carlie Wiener
University of Hawaii at Manoa

Related biology news :

1. From bees to coral reefs: How humans impact partnerships in the natural world
2. Smithsonian reports regional sea temperature rise and coral bleaching event in Western Caribbean
3. NOAA webcasts corals research to nations classrooms live from undersea lab
4. Climate accord loopholes could spell 4.2-degree rise in temperature and end of coral reefs by 2100
5. Taking the pulse of coral reefs
6. NOAA, SeaWeb partner to communicate the value of coral reefs
7. Coral off Puerto Ricos coast ideal case study for Gulf oil spills impact
8. Smithsonian scientists help create first frozen repository for Hawaiian coral
9. Creation of the first frozen repository for Hawaiian coral
10. How corals fight back
11. Massive coral mortality following bleaching in Indonesia
Post Your Comments:
Related Image:
Coral algae (symbiodinium) discovered in black corals at never seen before depths
(Date:11/17/2015)...  Vigilant Solutions announces today that Mr. Dick ... --> --> Mr. ... partnership at TPG Capital, one of the largest global ... in revenue.  He founded and led TPG,s Operating Group, ... from 1997 to 2013.  In his first role, he ...
(Date:11/12/2015)... Nov. 12, 2015  Arxspan has entered into ... and Harvard for use of its ArxLab cloud-based ... tools. The partnership will support the institute,s efforts ... chemical research information internally and with external collaborators. ... for managing the Institute,s electronic laboratory notebook, compound ...
(Date:11/10/2015)... YORK , Nov. 10, 2015 ... to behavioral biometrics that helps to identify and ... fraud. Signature is considered as the secure and ... the identification of a particular individual because each ... more accurate results especially when dynamic signature of ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... Nov. 24, 2015 Halozyme Therapeutics, Inc. (NASDAQ: HALO ... New York on Wednesday, December 2 at ... , president and CEO, will provide a corporate overview. ... at 1:00 p.m. ET/10:00 a.m. PT . ... will provide a corporate overview. --> th Annual ...
(Date:11/24/2015)... ... November 24, 2015 , ... International Society ... one of the premier annual events for pharmaceutical manufacturing: 2015 Annual Meeting. The ... where ISPE hosted the largest number of attendees in more than a decade. ...
(Date:11/24/2015)... November 24, 2015 --> ... research report "Oligonucleotide Synthesis Market by Product & Services ... Synthesis, Diagnostic, DNA, RNAi), End-User (Research, Pharmaceutical & Biotech, ... MarketsandMarkets, the market is expected to reach USD 1,918.6 ... at a CAGR of 10.1% during the forecast period. ...
(Date:11/24/2015)... , November 24, 2015 SHPG ) ... participate in the Piper Jaffray 27 th Annual Healthcare Conference ... December 1, 2015, at 8:30 a.m. EST (1:30 p.m. GMT). ... Chief Financial Officer, will participate in the Piper Jaffray 27 th ... , NY on Tuesday, December 1, 2015, at 8:30 a.m. EST ...
Breaking Biology Technology: