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:5/9/2016)... UAE, May 9, 2016 Elevay ... comes to expanding freedom for high net worth professionals ... in today,s globally connected world, there is still no ... could ever duplicate sealing your deal with a firm ... passports by taking advantage of citizenship via investment programs ...
(Date:4/26/2016)... 27, 2016 Research and ... Biometrics Market 2016-2020"  report to their offering.  , ... The analysts forecast the global multimodal biometrics ... during the period 2016-2020.  Multimodal biometrics ... such as the healthcare, BFSI, transportation, automotive, and ...
(Date:4/13/2016)... -- IMPOWER physicians supporting Medicaid patients in Central ... in telehealth thanks to a new partnership with higi. ... patients can routinely track key health measurements, such as ... when they opt in, share them with IMPOWER clinicians ... retail location at no cost. By leveraging this data, ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... , June 27, 2016  Liquid Biotech ... announced the funding of a Sponsored Research Agreement ... circulating tumor cells (CTCs) from cancer patients.  The ... in CTC levels correlate with clinical outcomes in ... These data will then be employed to support ...
(Date:6/24/2016)... Raleigh, NC (PRWEB) , ... June 24, 2016 , ... ... find the most commonly-identified miRNAs in people with peritoneal or pleural mesothelioma. Their findings ... here to read it now. , Diagnostic biomarkers are signposts in the blood, ...
(Date:6/23/2016)... SPRING, Md. , June 23, 2016 A ... collected from the crime scene to track the criminal down. ... and the U.S. Food and Drug Administration (FDA) uses DNA ... Sound far-fetched? It,s not. The ... genome sequencing to support investigations of foodborne illnesses. Put as ...
(Date:6/23/2016)... , June 23, 2016   EpiBiome , ... secured $1 million in debt financing from Silicon Valley ... up automation and to advance its drug development efforts, ... new facility. "SVB has been an incredible ... the services a traditional bank would provide," said Dr. ...
Breaking Biology Technology:
Cached News: