Navigation Links
Hidden sponges determine coral reef's nutrient cycle

Marine organisms hidden in caves, such as sponges, play an extremely important role in the nutrient cycle of coral reefs. Indeed they probably play the most important role of all, says Dutch biologist Sander Scheffers. And that is valuable information for nature conservationists who want to preserve the coral reefs.

In order to protect coral reefs it is important to understand how both the reefs and their environment function. Researchers often concentrate on subjects such as physical damage to reefs, the bleaching of coral and coral diseases. Sander Scheffers investigated a lesser-studied subject: the nutrient cycle on the coral reef and the role that organisms living in cavities, such as sponges, play in this.

Underwater camera

To determine the nature and size of this role, Scheffers first of all examined the precise appearance and quantity of these virtually inaccessible caves and their living communities. He did that on the Caribbean island of Curaao using a special underwater camera. The films shot revealed that sponges were the most important inhabitants, followed by animals such as tube worms, tunicates and bivalves. Together they fill more than 60 percent of the cavities. Further the cavities were found to have a surface area eight times greater than that of the coral reef, as seen from above by divers.


And according to Scheffers a larger living surface also means a larger filtering surface. Sponges filter the water. They take up planktonic particles such as bacteria and excrete inorganic nutrients. In turn, these nutrients can facilitate the growth of marine plants and other organisms.

Sponges filter at a phenomenal rate: if the seawater were to remain stationary, the sponges would have completely pumped it away within five minutes, i.e. they would have removed all of the small plankton from it. This is of course not the case, as there is a continuous supply of fresh water into the sea . According to Scheffers, these hidden organisms play a key role in the marine nutrient cycle due to their incredible capacity to convert enormous quantities of organic plankton into inorganic material.

The results from Scheffers' research have been made available to the personnel from the Marine under water park of Curaao and have been presented to the local government.


Source:Netherlands Organization for Scientific Research

Related biology news :

1. Hidden-hero microbes in soil, water may help naturally clean toxic sites
2. Newly-discovered class of genes determines ?and restricts ?stem cell fate
3. Biologists determine genetic blueprint of social amoeba
4. USC researchers determine mechanism of action of chemotherapy drug
5. Weapon performance determines mating success in the collared lizard
6. Scientists determine structure of enzyme that disrupts bacterial virulence
7. New technique helps researchers determine amino-acid charge
8. Researchers unlock how cells determine their functions
9. Researchers map out networks that determine cell fate
10. Genetic tug of war determines sexual differentiation
11. Structure determined for p53 tumor suppressor protein as bound to DNA for anti-cancer activity
Post Your Comments:

(Date:10/29/2015)... ANN ARBOR, Mich. , Oct. 29, 2015 ... with Eurofins Genomics for U.S. distribution of its ... DNA-seq kit and Rubicon,s new ThruPLEX Plasma-seq ... DNA to enable the preparation of NGS libraries ... in plasma for diagnostic and prognostic applications in ...
(Date:10/29/2015)... , October 29, 2015 ... biometric authentication company focused on the growing mobile ... wallet announces that StackCommerce, a leading marketplace to ... featuring the Wocket® smart wallet on StackSocial for ... ) ("NXT-ID" or the "Company"), a biometric authentication ...
(Date:10/27/2015)... NEW YORK , Oct. 27, 2015 ... the major issues of concern for various industry verticals ... This is due to the growing demand for secure ... practices in various ,sectors, such as hacking of bank ... concerns for electronic equipment such as PC,s, laptops, and ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... QUEBEC CITY , Nov. 24, 2015 /PRNewswire/ - ... the request of IIROC on behalf of the Toronto ... this news release there are no corporate developments that ... price. --> --> ... --> . --> Aeterna Zentaris ...
(Date:11/24/2015)... , November 24, 2015 ... market research report "Oligonucleotide Synthesis Market by Product & ... Gene Synthesis, Diagnostic, DNA, RNAi), End-User (Research, Pharmaceutical & ... by MarketsandMarkets, the market is expected to reach USD ... 2015, at a CAGR of 10.1% during the forecast ...
(Date:11/24/2015)... , ... November 24, 2015 , ... The Academy of ... Interest Group (SIG), MultiGP, also known as Multirotor Grand Prix, to represent the First–Person ... few years. Many AMA members have embraced this type of racing and several new ...
(Date:11/24/2015)... , November 24, 2015 ... market research report released by Transparency Market Research, the ... at a CAGR of 17.5% during the period between ... Market - Global Industry Analysis, Size, Volume, Share, Growth, ... non-invasive prenatal testing market to reach a valuation of ...
Breaking Biology Technology: