Navigation Links
Acidifying oceans could hit California mussels, a key species
Date:7/13/2011

Ocean acidification, a consequence of climate change, could weaken the shells of California mussels and diminish their body mass, with serious implications for coastal ecosystems, UC Davis researchers will report July 15 in the Journal of Experimental Biology.

California mussels (Mytilus californianus) live in beds along the western coast of the United States from Alaska to California. More than 300 other species share the beds or depend on the mussels in some way.

"Because these mussels play such an ecologically critical role, a decline in their numbers could impact a wide range of other organisms," said Brian Gaylord, associate professor of evolution and ecology at the UC Davis Bodega Marine Laboratory and first author of the paper.

Carbon dioxide, a greenhouse gas, is absorbed into the ocean, increasing its acidity. That acidity has increased by almost a third since the mid 18th century.

Mussels spend the first part of their lives swimming freely as larvae, before settling onto coastal rocks to grow into adults.

In the lab, Gaylord and his colleagues raised mussels from fertilization to the point where they were ready to settle, rearing them in both normal seawater and in water with two different conditions of elevated acidity. The acidity levels were based on projections by the Intergovernmental Panel on Climate Change, a Geneva-based scientific body established by the United Nations. One of the elevated acid levels assumed continued heavy use of fossil fuels; the other assumed a more optimistic scenario.

Compared to those raised in normal seawater, the young mussels living in the more acid waters had smaller, thinner, weaker shells, and as much as a third less body mass.

Weaker shells would make them more vulnerable to predators like crabs that crush their prey, as well as to carnivorous snails that drill through shells, Gaylord said.

Smaller body size would make them more likely to dry out at low tide and less able to withstand the energetically expensive process of metamorphosis from a free-living larva to a settled shellfish.

"Together these trends suggest that we're likely to see lower survivorship of young mussels as they return to shore," Gaylord said.

Although not an important fishery, the California mussel is a vital coastal species because so many other marine creatures depend on it for food and habitat.


'/>"/>

Contact: Andy Fell
ahfell@ucdavis.edu
530-752-4533
University of California - Davis
Source:Eurekalert  

Related biology news :

1. The Atlas of Coasts and Oceans
2. Office of Naval Research engages international partners at OCEANS 2011
3. Significant role of oceans in onset of ancient global cooling
4. UGA scientists discover missing links in the biology of cloud formation over the oceans
5. How do you manage US oceans? Look at local successes
6. First miniature sensors to measure the temperature of the world’s oceans
7. Cephalopods experience massive acoustic trauma from noise pollution in the oceans
8. Brown scientists to discuss best practices for the oceans
9. Acid oceans demand greater reef care
10. Oxygen-free early oceans likely delayed rise of life on planet
11. Sharks and wolves: Predator, prey interactions similar on land and in oceans
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Acidifying oceans could hit California mussels, a key species
(Date:5/16/2017)... TEANECK, N.J. , May 16, 2017  Veratad ... leading provider of online age and identity verification solutions, ... the K(NO)W Identity Conference 2017, May 15 thru May ... Ronald Regan Building and International Trade Center. ... across the globe and in today,s quickly evolving digital ...
(Date:4/24/2017)... 24, 2017 Janice Kephart , ... Identity Strategy Partners, LLP (IdSP) , today issues ... President Trump,s March 6, 2017 Executive Order: ... vetting can be instilled with greater confidence, enabling ... all refugee applications are suspended by until at ...
(Date:4/17/2017)... MELBOURNE, Florida , April 17, 2017 ... security technology company, announces the filing of its 2016 Annual Report ... Securities and Exchange Commission. ... Report on Form 10-K is available in the Investor Relations section ... well as on the SEC,s website at http://www.sec.gov . ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... ... October 10, 2017 , ... ... business process optimization firm for the life sciences and healthcare industries, announces a ... in San Francisco. , The presentation, “Automating GxP Validation for Agile Cloud Platforms,” ...
(Date:10/9/2017)... , ... October 09, 2017 , ... At its national ... Christopher Stubbs, a professor in Harvard University’s Departments of Physics and Astronomy, has been ... a member of the winning team for the 2015 Breakthrough Prize in Fundamental physics ...
(Date:10/7/2017)... ... October 06, 2017 , ... ... launched its ProxiMeta™ Hi-C metagenome deconvolution product, featuring the first commercially available ... bioinformatics software to perform Hi-C metagenome deconvolution using their own facilities, supplementing ...
(Date:10/5/2017)... ... October 05, 2017 , ... LabRoots , the ... from around the world, is giving back to cancer research with a month-long promotion ... , Now through October 31, shoppers can use promo code PinkRibbon to get 10 ...
Breaking Biology Technology: