HOME >> BIOLOGY >> NEWS
Study Shows Zebra Mussels Can Colonize Sand And Mud

COLUMBUS -- Researchers have found that zebra mussels have built colonies on the sandy and muddy bottom of Lake Erie, a habitat previously thought incapable of supporting the animals.

Since their Great Lakes debut in the mid-1980s, researchers believed that these tiny freshwater bivalves could only colonize hard, underwater surfaces such as rocks, clams and runoff pipes. The new findings are reported this week in the journal Nature.

“In terms of potential zebra mussel habitat, Lake Erie is wide open,” said Paul Berkman, senior research associate at Ohio State University’s Byrd Polar Research Institute. “More than 90 percent of the Lake Erie floor is a soft substrate. This is a wake-up call.

“We found that zebra mussels clearly colonize sand and muddy substrates in the lake,” he said, adding that the densities of some zebra mussel colonies exceed 20,000 animals per square meter.

Berkman and his colleagues studied 200 kilometers of the Lake Erie floor from the New York-Pennsylvania border to the lake’s western basin. They determined that by 1995, zebra mussels covered about 2,000 square kilometers of the lake bed’s soft sediment.

“We do know that mussels colonize soft substrates and that they are doing this over a significant portion of the lake,” Berkman said.

A zebra mussel starts out as a microscopic larva and can attach itself to a single grain of sand or mud. When the animal becomes a juvenile, it starts secreting byssal threads, which serve as anchors to attach the mussel to a stable surface. It continues sending out these threads, picking up more sand grains and creating a mat of cemented sediment.

“This creates a hard substrate,” Berkman said. “By binding sand grains together with their byssal threads, the mussels create a conglomerate, subsequently settled by juveniles, which creates a bed of zebra mussels on the lake bottom.”


'"/>

Contact: Paul Berkman
Berkman.1@osu.edu
(614)292-3670
Ohio State University
6-May-1998


Page: 1 2

Related biology news :

1. Study: Emission of smog ingredients from trees is increasing rapidly
2. Study explores gene transfer to modify underlying course of Alzheimers disease
3. Study reveals why eyes in some paintings seem to follow viewers
4. Study by Israeli scientists provides insight on DNA code
5. Study reveals first genetic step necessary for prostate cancer growth
6. Study of flu patients reveals virus outsmarting key drug
7. Study in Science reveals recreational fishing takes big bite of ocean catch
8. Study suggests cell-cycle triggers might be cancer drug targets
9. Study narrows search for genes placing men at increased risk for prostate cancer
10. Study links high carbohydrate diet to increased breast cancer risk
11. Study explains spatial orientation differences between sexes

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/22/2017)... LONDON , Feb. 22, 2017 ... by 2021, ABI Research identifies four technologies that ... solutions to secure significant share in the changing ... payments, and passive authentication.   "Companies ... it comes to security," says Dimitrios Pavlakis ...
(Date:2/13/2017)... 2017  RSA Conference -- RSA, a Dell Technologies ... to enhance fraud detection and investigation across digital ... Fraud & Risk Intelligence Suite. The new platform ... insights from internal and external sources as well ... customers from targeted cybercrime attacks. "Fraudsters ...
(Date:2/8/2017)... (NASDAQ: AWRE ), a leading supplier of biometrics ... and year ended December 31, 2016. Revenue ... to $6.9 million in the same quarter last year. Operating ... compared to $2.6 million in the fourth quarter of 2015. ... million, or $0.02 per diluted share, which compares to $1.8 ...
Breaking Biology News(10 mins):
(Date:3/1/2017)... 2017  Elizabeth Young and Joshua Rosenthal , ... Washington University,s Health Workforce Speaker series. http://bit.ly/2lA6C8B ... will be speaking on March 9, 2017 at the ... Washington, DC at 12:00pm. The ... renowned speakers to examine new workforce configurations, their outcomes ...
(Date:2/28/2017)... ... February 28, 2017 , ... ... Inc. (Newark, DE) have formed a strategic partnership to develop and market ... renewable energy laboratories. These automated testing solutions will save analysis time and ...
(Date:2/28/2017)... and REYKJAVIK, Iceland , Feb. ... AppTec group company and the contract genomics organization enabling ... officer Hannes Smarason has been appointed as the company,s chief ... Long and Alex Fowkes have been named ... "WuXi NextCODE is executing on its vision to enable ...
(Date:2/28/2017)... (PRWEB) , ... February 28, 2017 , ... ... to their function as well as to their processing and transport properties. With ... on a wide variety of samples. The Litesizerâ„¢ 100 gives rapid and accurate ...
Breaking Biology Technology:
Cached News: