Featured Research

from universities, journals, and other organizations

Eutrophication Affects Diversity Of Algae

Date:
October 20, 2009
Source:
University of Gothenburg
Summary:
Eutrophication of the seas may have an impact on genetic variation in algae, new research shows.

Phytoplankton provide the basis for the whole marine food chain.
Credit: University of Gothenburg

Eutrophication of the seas may have an impact on genetic variation in algae, research at the University of Gothenburg shows.

Phytoplankton provide the basis for the whole marine food chain. These microscopic organisms are common in coastal areas, all the way from the polar regions to the Equator, and multiply through cell division. If cells are present in the water mass in large numbers an algal blood develops - a recurrent problem in Swedish seas and along Swedish coasts.

Causes of algal blooms

Researchers at the Department of Marine Ecology of the University of Gothenburg have long been interested in the development and causes of algal blooms. The doctoral student Karolina Hδrnstrφm has focused in her thesis on diatoms, which are the largest single group of phytoplankton, and their occurrence in the eutrophicated Mariager Fjord in Jutland. The results show that different populations of a diatom species may have different growth and adaptability characteristics, and that the genetic variation of the algae may possibly be affected by eutrophication: the researchers found different types of populations during periods of heavy eutrophication in Mariager Fjord.

Little is known

"We know surprisingly little about the ecology of diatoms, about where the cells that give rise to blooms come from and whether it is the same populations that recurrently bloom in a particular location or whether it differs between seasons. My research may contribute to answering these questions, and perhaps increase knowledge of how algal blooms are affected by environmental changes and how the population dynamics of these algae appears in a microevolutionary perspective," says Hδrnstrφm.

The thesis Bloom dynamics and population genetics of marine phytoplankton - Community, species and population aspects was successfully defended on 25 September.

Thesis


Story Source:

The above story is based on materials provided by University of Gothenburg. Note: Materials may be edited for content and length.


Cite This Page:

University of Gothenburg. "Eutrophication Affects Diversity Of Algae." ScienceDaily. ScienceDaily, 20 October 2009. <www.sciencedaily.com/releases/2009/10/091019134722.htm>.
University of Gothenburg. (2009, October 20). Eutrophication Affects Diversity Of Algae. ScienceDaily. Retrieved September 23, 2014 from www.sciencedaily.com/releases/2009/10/091019134722.htm
University of Gothenburg. "Eutrophication Affects Diversity Of Algae." ScienceDaily. www.sciencedaily.com/releases/2009/10/091019134722.htm (accessed September 23, 2014).

Share This



More Plants & Animals News

Tuesday, September 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Ice Age Wooly Mammoth Remains for Sale

Raw: Ice Age Wooly Mammoth Remains for Sale

AP (Sep. 23, 2014) — A rare, well-preserved skeleton of a woolly mammoth is going on sale at Summers Place Auctions hope the 11.5-foot tall, almost intact specimen will fetch between $245,000 to $409,000. (Sept. 23) Video provided by AP
Powered by NewsLook.com
Fox Bites Conn. Student And School Staffers In Rare Attack

Fox Bites Conn. Student And School Staffers In Rare Attack

Newsy (Sep. 23, 2014) — A fox attacked a second-grade boy at a Connecticut elementary school Monday. It also attacked two school staff members and a woman and her dog. Video provided by Newsy
Powered by NewsLook.com
Will Living Glue Be A Thing?

Will Living Glue Be A Thing?

Newsy (Sep. 23, 2014) — Using proteins derived from mussels, engineers at MIT have made a supersticky underwater adhesive. They're now looking to make "living glue." Video provided by Newsy
Powered by NewsLook.com
Raw: Tiger Kills Man at India Zoo

Raw: Tiger Kills Man at India Zoo

AP (Sep. 23, 2014) — A white tiger killed a young man who climbed over a fence at the New Delhi zoo and jumped into the animal's enclosure on Tuesday, a spokesman said. (Sept. 23) 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:

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