Navigation Links
New report puts real numbers behind history of oyster reefs
Date:6/12/2012

In an effort to advance the field of coastal restoration, The Nature Conservancy and a team of scientists from more than a dozen management agencies and research institutions led by the University of Cambridge conducted an in-depth study of oyster reef area and, for the first time, the actual biomass (the "living weight") of oyster reefs in dozens of estuaries throughout the United States.

'Historical ecology with real numbers', published today in Proceedings of the Royal Society B, presents the first truly quantitative estimates of decline in oyster habitat over such a large spatial and temporal scale.

The findings show that while that oyster reef area declined by 64% over the last century, the total biomass, or living weight of oysters on reefs, had dropped by 88% during this period, revealing that simple physical area is an unreliable indicator of habitat status.

The good news, according to lead author Dr. Philine zu Ermgassen of University of Cambridge, is that the study gives a much-needed historical picture of conditions in specific bays and estuaries, something that will aid in future restoration efforts.

"Oysters were a valuable resource, even a century ago, so government surveyors mapped vast acreages and built up a story of a critically important habitat in wonderful detail," said Dr. zu Ermgassen. "Although somewhat unfamiliar to us here in Europe the humble oyster was once so numerous, both here and in the United States, that it formed large physical structures oyster reefs that rose up in banks off the sea bed.

"Using meticulous records compiled 100 years ago, we have been able to accurately quantify the changes in oyster reefs over time. Anecdotes have been converted to hard facts. Of course there have been huge losses in area, but that is only part of the story. We've also noted changes in density and structure of the remaining oysters, such that what is left is a much depleted habitat. Managers and scientists need to pay closer attention to density when setting restoration or conservation objectives."

"In addition to aiding restoration, the study will inspire it," says co-author Dr. Mark Spalding, a lead scientist with The Nature Conservancy's Global Marine Program, and also based at Cambridge. Indeed, the authors are keen to point out that the US is leading the world in turning things around for these habitats, with restoration work underway in numerous estuaries to restore oyster habitat.

"This is a call to action, and these findings will provide funders and managers with a powerful baseline a clear vision of how things were and an opportunity to establish meaningful goals and targets. The findings have implications beyond oyster reefs, however. Almost all of our concerns about the loss of natural areas from forests and wetlands to seagrass meadows and kelp beds are based on an estimation of change in area," said Dr. Spalding. "This study shows that the losses may be even worse than we thought, because the quality of the remaining patches of habitat may be so diminished that it is not providing the function we expect from any given area."


'/>"/>

Contact: Philine zu Ermgassen
philine.zuermgassen@cantab.net
University of Cambridge
Source:Eurekalert

Related biology news :

1. Report addresses challenges in implementing new diagnostic tests where they are needed most
2. NSF report detailing growth in graduate enrollment in science & engineering in the past decade
3. New report examines effects of trees killed by bark beetles on wildfire
4. Report details efforts to improve, advance indoor microbial sampling
5. iView Systems iTrakĀ® version 5.5 delivers optimized Incident Reporting
6. ACRG and BGI report findings from genomics research on recurrent hepatitis B virus integration
7. Science reporters win ASM Public Communications Award
8. BGI reports the completed sequence of foxtail millet genome
9. Radiologists study necessity of additional imaging recommendations in PET/CT oncologic reports
10. Aware, Inc. Reports First Quarter 2012 Financial Results
11. Researchers report potential for a moderate New England red tide in 2012
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/11/2016)... 2016  Vigilant Solutions announces today that its license plate ... by Lee,s Summit Police Department to ... arrest of a homicide suspect. Kansas City ... 65 square miles and is home to roughly 100,000 residents. ... single mobile license plate reader system and also leverages Vigilant,s ...
(Date:2/8/2016)... PRAGUE, Czech Republic , February 8, 2016 ... first EU-regulated global payment platform which presents innovation ... Voice Biometrics Authentication feature called VoiceKey. --> ... payment platform which presents innovation for clients, comfort ... feature called VoiceKey. --> Worldcore ...
(Date:2/3/2016)... , February 3, 2016 ... market research report "Automated Fingerprint Identification System Market by ... Search), Application (Banking & Finance, Government, Healthcare, and Transportation) ... MarketsandMarkets, the market is expected to be worth USD ... 21.0% between 2015 and 2020. The transformation and technology ...
Breaking Biology News(10 mins):
(Date:2/11/2016)... Feb. 11, 2016  Neurocrine Biosciences, Inc. (NASDAQ: NBIX ) ... December 31, 2015. --> --> ... net loss of $29.3 million, or $0.34 loss per share, compared ... share for the same period in 2014. For the year ended ... million, or $1.05 loss per share, as compared to a net ...
(Date:2/11/2016)... and GERMANTOWN, Maryland , ... Frankfurt Prime Standard: QIA) today announced the introduction of ... gene expression profiling, expanding QIAGEN,s portfolio of Sample to ... researchers to select from over 20,000 human genes and ... between genes, cellular phenotypes and disease processes. --> ...
(Date:2/11/2016)... ATLANTA , Feb. 11, 2016  Spectra BioPharma ... Organization (CSO) that provides biopharma companies the experience, ... implement and deploy outsourced sales teams. Created in ... team addresses both the strategic and tactical needs ... innovative sales solutions through both personal and non-personal ...
(Date:2/11/2016)... (PRWEB) , ... February 11, ... ... business-to-business publication dedicated to delivering cutting-edge information focused on the development and ... Sciences to become a premier sponsor of the 2016 BioProcess International Awards ...
Breaking Biology Technology: