Navigation Links
Changing Chesapeake Bay acidity impacting oyster shell growth
Date:6/10/2010

shell formation to temperature, salinity, and acidity highlights the need to understand how the entire ecosystem is changing, not just acidity."

The scientists attribute the observed spatial variation in acidity to changes in the base of the food web in the upper Chesapeake Bay. Inputs of nutrients from sewage systems and agriculture promote increased phytoplankton populations in the upper Bay. As these plants grow they absorb large amounts of carbon dioxide from the water column, thereby making waters in that region less acidic. As these phytoplankton are carried toward the ocean by the Bay's currents, they are consumed by animals and bacteria. The respiration of this phytoplankton organic material results in the release of the same carbon dioxide taken up by the phytoplankton, which remains dissolved in the water making it significantly more acidic.

"Carbon dioxide is a weak acid and whether it is produced by fossil fuel combustion or enhanced phytoplankton growth and decay, the resulting acidic conditions have the same negative effect on shell forming animals, such as oysters and corals," notes Dr. Waldbusser.

"Decreasing acidity in the low salinity waters and increasing acidity in the higher salinity waters of the Bay highlights natural variations that have not typically been considered with respect to increasing atmospheric carbon dioxide in the Chesapeake Bay ecosystem" added Waldbusser. "While these variations in acidity may improve conditions for shellfish in some areas, they may also magnify detrimental impacts in others. What our study indicates is there may be an important shifting baseline and without better measurements we will fail to fully understand impacts on estuarine biota."

However, Dr. Waldbusser cautioned that the long term baseline trends they found in archived Bay Program data sets are just the first step towards understanding acidity changes in Chesapeake Bay due to limitations of traditional pH measure
'/>"/>

Contact: Christopher Conner
cconner@umces.edu
443-496-0095
University of Maryland Center for Environmental Science
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Patterns of growth changing in Inuit preschoolers
2. Tackling the challenges of survival in a changing world
3. NOAA, NASA and Old Dominion researchers measure impacts of changing climate on ocean biology
4. NSF forum to address ecosystem services in a changing world
5. Managing ecosystems in a changing climate
6. Changing flowering times protect tobacco plants against insect herbivory
7. Managing Pacific Northwest dams for a changing climate
8. Game-changing nanodiamond discovery for MRI
9. Changing the course of nature: Are fisheries directing the evolution of fish populations?
10. Forest Service to host 2nd International Conference on Forests and Water in a Changing Environment
11. Changing climate likely to make super weed even more powerful
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Changing Chesapeake Bay acidity impacting oyster shell growth
(Date:8/28/2014)... FASEB MARC (Maximizing Access to Research Careers) Program ... Society of Human Genetics from October 18 22, ... meant to promote the entry of students, post doctorates ... the basic science community and to encourage the participation ... Genetics. This year MARC conferred 16 awards totaling ...
(Date:8/28/2014)... have identified the developmental on-off switch for Streptomyces ... than two-thirds of the world,s naturally derived antibiotic medicines. ... whether it is possible to manipulate this switch to ... study, appearing August 28 in Cell , found ... cyclic-di-GMP and a larger protein called BldD ultimately controls ...
(Date:8/28/2014)... measuring and imaging how quickly blood flows in the ... drug abuse affects the brain, which may aid in ... better treatment options for recovering drug addicts. The new ... Brook University in New York, USA and the U.S. ... Optical Society,s (OSA) open-access journal Biomedical Optics ...
Breaking Biology News(10 mins):Small molecule acts as on-off switch for nature's antibiotic factory 2Small molecule acts as on-off switch for nature's antibiotic factory 3This is your brain's blood vessels on drugs 2This is your brain's blood vessels on drugs 3
... 3 fatty acids in fish oils have been well documented ... and reducing methane emissions. These last two benefits may ... the environment, as methane given off by farm animals is ... March) researchers from University College Dublin reported that by including ...
... years because of an inherited cardiac arrhythmia syndrome ... thanks to a discovery made by Vanderbilt University Medical ... M.D., Ph.D., report this week in Nature Medicine ... lethal arrhythmias in patients with a specific type of ...
... study,s findings appear to echo the insect worlds portrayed in ... characters live in rigidly conformist societies. Scientists from the ... a mathematical model to study the manner in which cooperative ... study identifies that there are two scenarios in which a ...
Cached Biology News:Targeted drug therapy prevents exercise-induced arrhythmias 2Targeted drug therapy prevents exercise-induced arrhythmias 3
(Date:8/27/2014)... Green & Grow Inc. (GGI) has ... and secured Otter Capital as a significant new partner. ... of GGI’s Agriplier™ technology, building on recent compelling field ... our first meeting, we have been impressed with Otter ... said Alan Sobba, President and CEO of GGI. “We ...
(Date:8/27/2014)... survive impact by the huge amounts of energy ... energy for photosynthesis. The hypothesis is that the ... the energy throughout the entire protein molecule through ... now managed to successfully ,film, this process. , ... which play a role in photosynthesis and thus ...
(Date:8/27/2014)... , Aug. 27, 2014  A novel ... to help physicians better identify early-stage disease, when ... disability, according to a new study in The ... Diagnostics (NYSE: DGX ) and other ... 14-3-3eta protein outperformed conventional antibody-serum testing, including rheumatoid ...
(Date:8/27/2014)... DUBLIN , Aug. 27, 2014 ... the "Global Enzyme for Pulp & Paper Industry ... The Global Enzyme for Pulp & Paper Industry ... the current state of the global enzyme for pulp ... basic overview of the industry including definitions, classifications, applications ...
Breaking Biology Technology:Green & Grow Inc. Secures $6M Series B Funding from Otter Capital 2Green & Grow Inc. Secures $6M Series B Funding from Otter Capital 3DTU researchers film protein quake for the first time 2Novel Biomarker Detects Early Rheumatoid Arthritis Better than Conventional Methods Alone, According to Journal of Rheumatology Study 2Novel Biomarker Detects Early Rheumatoid Arthritis Better than Conventional Methods Alone, According to Journal of Rheumatology Study 3Novel Biomarker Detects Early Rheumatoid Arthritis Better than Conventional Methods Alone, According to Journal of Rheumatology Study 4Global Enzyme for Pulp & Paper Industry Report 2014 2
... Inc.,(OTC Bulletin Board: NGNM) announced today that it plans ... July 31, 2008., The Company has scheduled ... results on July 31, 2008, at 11:00 AM EDT. ... 689-8033 (international) at least,five minutes prior to the call. ...
... James C. Powell, former,President and Chief Operating Officer ... of Nerites Corporation., Under Powell,s guidance, SurModics ... partnerships to commercialize products.,Powell joined SurModics in 1987 ... lead the company,s transition from a diagnostics kit,manufacturer ...
... VEGAS, July 29 American Pacific,Corporation (Nasdaq: APFC ... third quarter financial results on Tuesday, August 5, 2008. ... to participate in,a teleconference to review the financial results ... held Tuesday, August 5, 2008 at 1:30 p.m.,PDT. To ...
Cached Biology Technology:NeoGenomics Schedules its Q2 2008 Earnings Release for July 31, 2008 2James C. Powell Joins Nerites Board of Directors 2American Pacific to Release Financial Results and Hold Fiscal 2008 Third Quarter Investor Teleconference 2
... Membrane Protein 2, Synaptobrevin 2). ... homology with any other known ... expected that the antibody will ... multata and bovine due to ...
... encodes two unrelated proteins both of which ... cell cycle in a p53-dependent manner. p14^ARF^ ... degradation of mdm2 proteinrequired for mdm2 modification ... This interaction is mediated by the exon ...
human Exodus-2 Research Focus: cytokine/growth factor Storage Temperature: -20C Shipping Temperature: 4C...
...
Biology Products: