Navigation Links
Port Valdez invertebrates stabilized 26 years after quake
Date:4/25/2011

It took 26 years for marine invertebrates living on the Port Valdez seafloor to stabilize after Alaska's Great Earthquake of 1964, according to a scientist at the University of Alaska Fairbanks.

"The earthquake, which measured 9.2 on the Richter scale, and the tsunami waves that followed, impacted every marine community in Prince William Sound," said Arny Blanchard, a research assistant professor at the UAF School of Fisheries and Ocean Sciences. Four decades of monitoring, including samples collected last year, have confirmed that the seafloor now resembles that of an undisturbed glacial fjord.

Blanchard's findings, along with those of Howard Feder, UAF professor emeritus, and Max Hoberg, UAF researcher, were published in the journal Marine Environmental Research. The findings shed light on how long it takes for seafloor ecosystems to recover after earthquakes.

The 1964 earthquake and resulting tsunami wreaked havoc on intertidal beaches and seafloor of Port Valdez, according to Feder, the leader of the biological component of the project from 1971 to 1990. Marine plants and animals on Port Valdez beaches were destroyed by the tsunami while the earthquake deposited massive amounts of sediment on the seafloor. This caused the whole community of bottom-dwelling marine invertebratessuch as sea worms, snails and clamsto change.

Some seafloor invertebrates usually found in glacial fjords like Port Valdez, such as the sea worms Terebellides stroemi and Galathowenia oculata, virtually disappeared. Other animals took advantage of the disturbance and colonized the area. One of those animals is a family of sea worms called Capitellidae. They became unusually dominant in the region for a few years. According to Blanchard, Capitellidae are known for being highly opportunistic and tolerant of disturbance.

The diversity and abundance of marine invertebrates in Port Valdez was highly variable from 1971 to 1989 compared to o
'/>"/>

Contact: Carin Stephens
cbstephens@alaska.edu
907-322-8730
University of Alaska Fairbanks
Source:Eurekalert

Page: 1 2

Related biology news :

1. Arctic governments and industry still unprepared for oil spills 20 years after Exxon Valdez
2. Bioavailable contaminants come from the Exxon Valdez oil catastrophe
3. Leading journal makes Exxon Valdez and other oil-related studies available free
4. Simple approach could clean up oil remaining from Exxon Valdez spill
5. Gulf oil spill similar to Exxon Valdez in initial social and mental impacts, study finds
6. Satellite imagery shows fragile Wilkins Ice Shelf destabilized
7. UV exposure has increased over the last 30 years, but stabilized since the mid-1990s
8. Anabolic steroids provide a competitive edge in power lifting years after doping has ended
9. Experiment demonstrates 110 years of sustainable agriculture
10. Singapore opens Fusionopolis, its second major R&D hub in 5 years
11. New book covers 16 years of MSU research in Yellowstone
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/16/2014)... managers have a new synthesis of recent research findings ... forests in the two states. , The Ecology ... and Washington: A Synthesis of the Relevant Biophysical Science ... report published by the U.S. Forest Service,s Pacific Northwest ... from managers for a synthesis of the large body ...
(Date:10/16/2014)... be cultivated efficiently, they are anything but sustainable: ... monoculture cultivation is becoming increasingly evident. Despite their ... and are regarded as the sole possibility of ... wrongfully, finds Bernhard Schmid, an ecology professor at ... form of agriculture and forestry. After all, a ...
(Date:10/16/2014)... – Post-menopausal women experienced improvements in vaginal atrophy, ... genital bleeding, after 12 weeks of daily 10 ... germ-based nutritional supplement previously shown to help relieve ... pilot study reported in a poster at the ... , "These data documented improved vaginal epithelium, ...
Breaking Biology News(10 mins):New report synthesizes best available science on management of moist mixed-conifer forests 2Plant communities produce greater yield than monocultures 2Plant communities produce greater yield than monocultures 3S-equol supplements associated with improved measures of reproductive health in postmenopausal women 2
... University of Adelaide will rewrite the textbooks on how an ... health and fertility. The study, now published in the journal ... that plays a key role in the development of ovaries and ... women. The discovery is expected to prompt further studies around ...
... the scientists visualized seven intermediate forms of the CylR2 ... Their results show that the most instable intermediate form ... findings may contribute to a better understanding of how ... Whether Alzheimer,s, Parkinson,s or Huntington,s Chorea all ...
... one of the most aggressive invasive ant species in the ... met its match in the Asian needle ant. Specifically, the ... displacing Argentine ants in an urban environment, indicating that the ... be the next invasive species to see a population boom. ...
Cached Biology News:Study prompts rethink of how ovaries develop 2Protein 'filmed' while unfolding at atomic resolution 2Protein 'filmed' while unfolding at atomic resolution 3Researchers find Asian needle ants displacing other aggressive invaders 2
(Date:10/22/2014)... and HONG KONG , ... rare disease therapeutics enterprise, announced today that rare disease ... company as vice president, research. Dr. McKew brings more ... key leadership positions at the National Institutes of Health, ... acquisition by Wyeth). Dr. McKew will lead aTyr,s efforts to ...
(Date:10/20/2014)... GUELPH, ON , Oct. 20, 2014 /PRNewswire/ - BIOREM Inc. ... totalling $1.7 million which brings Q3 orders to $5.8 million and ... odour control projects in North America and ... "We continue to bid new projects at record levels," said ... values were higher at the end of Q3 than they have ...
(Date:10/20/2014)... October 20, 2014 Earle ... LLC, announced today that Ellen Teplitzky, an experienced ... for the pharmaceutical industry, has joined the firm ... its legal services practice. NDA Partners provides ... witness and testimony, to top law firms and ...
(Date:10/19/2014)... The Asia-Pacific Bromine Market report defines ... analysis and forecast of revenue. , Browse through ... report, to get an idea of the in-depth ... the segmentation in the Asia-Pacific bromine market, and ... , http://www.micromarketmonitor.com/market/asia-pacific-bromine-6741503144.html , Bromine is a ...
Breaking Biology Technology:aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 2aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 3NDA Partners Appoints Ellen Teplitzky, JD as Director of its Legal Services Practice 2The Asia-Pacific Bromine Market is estimated to grow to $4,080.1 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Bromine Market is estimated to grow to $4,080.1 million by 2018 - New Report by MicroMarket Monitor 3
... , , , , SEATTLE, ... at the Rodman & Renshaw 11th Annual Healthcare Conference on Wednesday, September 9th at ... Hotel. , , The conference will also be webcast live with ... www.celltherapeutics.com . , , , ...
... COLUMBIA, Md., Sept. 2 ACell, Inc. is announcing its participation ... , The conference will be held September 9, ... in New York City. James DeFrancesco, Chief Executive Officer and President, ... at 9:10 AM (EDT) in the Hubbard Room. The presentation is ...
... BERLIN, September 2 , - Asset Purchase Agreement ... and NeoBenz(R) Micro, , Intendis GmbH, which ... agreement to acquire two prescription dermatology product lines,from SkinMedica, Inc., a ... Both Desonate(R) and NeoBenz(R) Micro are currently marketed in the ...
Cached Biology Technology:ACell's CEO to Present at Rodman & Renshaw's 2009 Annual Global Investment Conference 2Bayer Acquires Two Prescription Dermatology Product Lines From SkinMedica in the U.S. 2Bayer Acquires Two Prescription Dermatology Product Lines From SkinMedica in the U.S. 3
[14C]Polyethylene glycol 4000, 9.25 MBq, 250 uCi. Aqueous solution containing 3% ethanol, sterilized. 370-740 MBq/g, 10-20 mCi/g.1.85 MBq/ml, 50 uCi/ml. Category: Radiochemicals &Radiation Safety, ...
Request Info...
interferon-related developmental regulator 2...
PlusOne EDTA, disodium salt, 100 g. Category: Electrophoresis Systems & Standards & Reagents, Electrophoresis Standards and Reagents, Buffers....
Biology Products: