Featured Research

from universities, journals, and other organizations

First Successful Use Of New Ocean Observation Technology – Investigation Of Ocean Acidification In The Baltic Sea

Date:
June 29, 2009
Source:
Leibniz Institute of Marine Sciences (IFM-GEOMAR)
Summary:
For the first time, scientists in Germany successfully used an offshore observing system to study environmental changes in the oceans. The so-called mesocosms resemble oversized test tubes with a length of 20 metres. They are used to simulate the future ocean in situ, i.e. under realistic conditions.

The mesocosm systems developed in Kiel at the Baltic Sea at Booknis Eck.
Credit: U. Riebesell, IFM-GEOMAR

For the first time scientists and technicians from the Leibniz Institute of Marine Sciences (IFM-GEOMAR) in Kiel, Germany, successfully used an offshore observing system to study environmental changes in the oceans.

The so-called mesocosms resemble oversized test tubes with a length of 20 metres. They are used to simulate the future ocean in situ, i.e. under realistic conditions. IFM-GEOMAR scientists used six of these mesocosms, each encompassing about 60,000 litres of sea water, at the observing station Booknis Eck in the Baltic Sea in order to study the effects of ocean acidification.

Above the sea surface they seem unimpressive: six vertical orange sticks connected by a transparent plastic roof. The dimension of these devices which were installed at Booknis Eck in the western Baltic Sea is revealed under water. A 20 metre long, flexible plastic tube is affixed on a rack that serves for buoyancy and stability of the system. In this tube scientists can isolate about 60 cube metres of seawater under natural conditions in terms of temperature, stratification and ecosystem.

“So far we had studied the impact of changes such as the increase of fertilizers or of the carbon dioxide concentrations in small tanks in the laboratory. The new mesocosms enable us to study the developments under natural and controlled conditions Thus, we can better estimate their impact on the ecosystem,” states project leader Prof. Ulf Riebesell from IFM-GEOMAR.

The first mission of the mesocosms, a technology developed at IFM-GEOMAR, was dedicated to research on the impact of ocean acidification. “The ocean absorbs more than a third of the carbon dioxide produced by human beings. As a consequence the pH-value decreases and the ocean acidificates,” says Prof. Riebesell. Many marine scientists regard this process as equally dangerous as the ocean warming. “Now we want to know how the impact of the acidification on the marine ecosystem looks like,” Riebesell explains. A final assessment of the experiments at Booknis Eck cannot be given yet. But according to Riebesell the experiments were very successful since a large amount of data was generated.

The study was conducted together with partners of the Alfred Wegener Institute for Polar and Marine Research in Bremerhaven, the Leibniz Institute for Baltic Sea Research in Warnemόnde, the Leibniz Institute of Freshwater Ecology and Inland Fisheries in Berlin and 19 students from Kiel. It is part of the joint project SOPRAN (Surface Ocean Processes in the Anthropocene) funded by the Federal Ministry of Education and Research that has also part-financed the development of the worldwide unique mesocosm systems. International parties from the USA and the UK have already expressed interest in the new technology.

The experiment in the Baltic Sea was a test for a large-scale project which will take place off the coast of Svalbard in spring 2010 under the leadership of IFM-GEOMAR with contributions of 15 other European partners in the context of the European project EPOCA (European Project on Ocean Acidification). The main focus will be again the ocean acidification.

A decision on proposals seeking for funding of additional mesocosm experiments in the context of SOPRAN is expected soon.


Story Source:

The above story is based on materials provided by Leibniz Institute of Marine Sciences (IFM-GEOMAR). Note: Materials may be edited for content and length.


Cite This Page:

Leibniz Institute of Marine Sciences (IFM-GEOMAR). "First Successful Use Of New Ocean Observation Technology – Investigation Of Ocean Acidification In The Baltic Sea." ScienceDaily. ScienceDaily, 29 June 2009. <www.sciencedaily.com/releases/2009/06/090615111618.htm>.
Leibniz Institute of Marine Sciences (IFM-GEOMAR). (2009, June 29). First Successful Use Of New Ocean Observation Technology – Investigation Of Ocean Acidification In The Baltic Sea. ScienceDaily. Retrieved September 19, 2014 from www.sciencedaily.com/releases/2009/06/090615111618.htm
Leibniz Institute of Marine Sciences (IFM-GEOMAR). "First Successful Use Of New Ocean Observation Technology – Investigation Of Ocean Acidification In The Baltic Sea." ScienceDaily. www.sciencedaily.com/releases/2009/06/090615111618.htm (accessed September 19, 2014).

Share This



More Earth & Climate News

Friday, September 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Wildfires in CA Burn Forest Asunder

Raw: Wildfires in CA Burn Forest Asunder

AP (Sep. 18, 2014) — An out-of-control Northern California wildfire has nearly 2,800 people from their homes as it continues to grow, authorities said Thursday. Authorities said a man has been arrested on suspicion of arson for starting the fire on Saturday. (Sept. 18) Video provided by AP
Powered by NewsLook.com
Raw: Elephant Undergoes Surgery in Tbilisi Zoo

Raw: Elephant Undergoes Surgery in Tbilisi Zoo

AP (Sep. 18, 2014) — Grand the elephant has successfully undergone surgery to remove a portion of infected tusk at Tbilisi Zoo in Georgia. British veterinary surgeons used an electric drill to extract the infected piece. (Sept. 18) Video provided by AP
Powered by NewsLook.com
Raw: Scientists Examine Colossal Squid

Raw: Scientists Examine Colossal Squid

AP (Sep. 16, 2014) — Squid experts in New Zealand thawed and examined an unusual catch on Tuesday: a colossal squid. It was captured in Antarctica's remote Ross Sea in December last year and has been frozen for eight months. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Man Floats for 31 Hours in Gulf Waters

Man Floats for 31 Hours in Gulf Waters

AP (Sep. 16, 2014) — A Texas man is lucky to be alive after he and three others floated for more than a day in the Gulf of Mexico when their boat sank during a fishing trip. (Sept. 16) Video provided by AP
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:
from the past week

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