Navigation Links
Ancient whale fall from California's Año Nuevo Island one of youngest, most complete known
Date:9/13/2007

clams in all, each less than a centimeter in length, or two-fifths of an inch, plus one snail. Most of these organisms were on the skull, but some were nestled in the vertebrae. Haasl, a mollusk expert, thought the clams might be similar to those that cluster around whale falls today and that are able to extract energy from chemicals in bones with the help of specialized symbiotic bacteria. At whale fall depths of more than 1,000 meters, there is no light for photosynthesis.

Based on the shape of the fossil clam shells attached to the whale skeleton, Pyenson and Haasl determined that they belong to the same group of mollusks whose living relatives are chemosynthetic, confirming their initial hypothesis that this was a whale fall. A visit by Pyenson and Haasl to Ao Nuevo Island in January 2007 showed that the whale came from 15 million-year-old sediments, the Monterey Formation, making the A o Nuevo find much younger than most fossil whale falls discovered around the globe, the oldest of which date from 40 million years ago, Pyenson said.

Whale falls were unknown to science until 1989, when the first example of a deep-sea community living on recently deceased whale carcasses was reported from southern California.

"The ocean floor is pretty much a desert until you get a whole whale carcass sinking to the bottom," Pyenson said. "We don't know how these creatures know to colonize it. Are they ever-present on the sea floor waiting for an animal to fall" But when the whale carcass hits, it forms this island refuge of high nutrient levels that can sustain an undersea community, some scientists calculate, for decades."

Over the past 18 years, more whale falls have been found around the world, and paleontologists have found examples in the fossil record as well. Most fossil examples, however, consist of isolated bones adjacent to deep-sea mollusks, Pyenson said. Little is known about the size or identity of the whale host.

In cont
'/>"/>

Contact: Robert Sanders
rsanders@berkeley.edu
510-643-6998
University of California - Berkeley
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Ancient olfaction protein is shared by many bugs, offering new pest control target
2. Researchers find missing genes of ancient organism
3. Family trees of ancient bacteria reveal evolutionary moves
4. Scientists find fossil proof of Egypts ancient climate
5. U-M team recovers ancient whale in Egyptian desert
6. Ancient immune defense mechanism is no match for HIV-1
7. Ancient DNA helps clarify the origins of two extinct New World horse species
8. Deep sea algae connect ancient climate, carbon dioxide and vegetation
9. Analysis of flower genes reveals the fate of an ancient gene duplication
10. Researchers Discover Ancient Origins Of Tuberculosis-causing Bacteria
11. Ancient DNA confirms single origin of Malagasy primates
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/2/2014)... [Brown University] It,s hard to comprehend how bad ... has become without knowing what it was before people ... rate was 10 times lower than scientists had thought, ... worse. , Extinctions are about 1,000 times more frequent ... came along. The explanation from lead author Jurriaan de ...
(Date:9/2/2014)... that professional baseball pitchers with poor core stability are more ... season because of injury than are pitchers who have good ... In the study, 347 pitchers were assessed for lumbopelvic control ... as they raised a leg to step up were up ... days cumulative, not consecutive during the season than ...
(Date:9/2/2014)... led by researchers at the University of Warwick in ... just published in the Journal Early Human Development ... spent in hospital after birth and the use of ... in preterm children. , Mathematic abilities are crucial for ... in very preterm children. Earlier studies of children who ...
Breaking Biology News(10 mins):Extinctions during human era worse than thought 2Extinctions during human era worse than thought 3In pro baseball pitchers, weak core linked to more missed days 2In pro baseball pitchers, weak core linked to more missed days 3Mechanical ventilation a key indicator for pre-term children's math problems 2
... detection techniques developed at the University, the team mapped ... and developed a model of their likely distribution as ... action is needed. University of Canberra professor in ... found foxes are widespread in northern and eastern Tasmania ...
... University of Southampton has shown that copper can ... to the increasing number of antibiotic-resistant infections worldwide. ... largely responsible for the development of antibiotic-resistance, which ... healthcare-associated infections (HCAIs). The newly-published paper, which ...
... Institution are rolling out results from the new Airborne ... at the American Geophysical Union (AGU) meetings in San ... uncovering a previously invisible ecological world. To watch a ... the world in a whole new way, click here. ...
Cached Biology News:Fox invasion threatens wave of extinction, UC research finds 2New study shows how copper restricts the spread of global antibiotic-resistant infections 2Carnegie debuts revolutionary biosphere mapping capability at AGU 2Carnegie debuts revolutionary biosphere mapping capability at AGU 3
(Date:9/2/2014)... SAN DIEGO, California, and BELLINGHAM, Washington, USA (PRWEB) September ... Levinson and International Year of Light and Light-based ... as winners of top awards from SPIE, the ... in San Diego. Awards were presented to Levinson and ... including the Gold Medal of the Society won by ...
(Date:9/2/2014)... used for detailed studies of what happens on the ... research, among other applications. A group of researchers from ... cell membranes form across a large number of vertical ... the interior of a cell and its surroundings takes ... surface layer that holds the cell together and that ...
(Date:9/2/2014)... 2014  TransCelerate BioPharma Inc. ("TransCelerate") today announced ... protecting personal data in Clinical Study Reports (CSRs) ... The document describes an approach to apply when ... other related clinical trial documents, and is available ... the TransCelerate CSR Redaction approach is to provide ...
(Date:9/2/2014)... , Sept. 2, 2014 Orexigen Therapeutics, Inc. ... U.S. Patent and Trademark Office (PTO) has issued a ... evaluated for weight loss. NB32 is a fixed-dose combination ... U.S. Patent No. 8,815,889 claims methods for treating ... The patent expires in 2024. If NB32 is approved ...
Breaking Biology Technology:Levinson, Dudley Win SPIE Directors’ and President’s Awards 2Levinson, Dudley Win SPIE Directors’ and President’s Awards 3Levinson, Dudley Win SPIE Directors’ and President’s Awards 4Nano-forests to reveal secrets of cells 2TransCelerate BioPharma Inc. Releases Recommended Approach for Protecting Personal Data in Clinical Study Reports 2TransCelerate BioPharma Inc. Releases Recommended Approach for Protecting Personal Data in Clinical Study Reports 3Orexigen Expands NB32 Intellectual Property Portfolio With New U.S. Patent 2Orexigen Expands NB32 Intellectual Property Portfolio With New U.S. Patent 3Orexigen Expands NB32 Intellectual Property Portfolio With New U.S. Patent 4
... HIGHLIGHTS:2010 Results (all percentages are to comparable periods in 2009) ... a new quarterly high. Q4 sales grew by 2% and 3% ... sales increased 6% and 5% on a reported and currency adjusted ... was $0.76. Excluding restructuring costs of $0.07, adjusted Q4 2010 diluted ...
... new type of biological and chemical sensor that has few ... long-lasting. The "diffraction-based" sensors are made of thin stripes ... contracts depending on the acidity of its environment. Recent ... to precisely determine pH - a measure of how acidic ...
... RATON, Fla., Feb. 8, 2011 Stem Cell Assurance, ... engagement of Marcum LLP to audit its financial statements as ... then ended.  Ranked 15th among the "Top 25 Firms" by ... more than 1,100 professionals, including more than 150 partners, in ...
Cached Biology Technology:Sigma-Aldrich (Nasdaq: SIAL) Reports Q4 and Full Year 2010 Diluted EPS of $0.76 and $3.12, Respectively. Q4 and Full Year 2010 Adjusted Diluted EPS Were $0.83 and $3.31, Respectively. Q4 Sales Set New Quarterly High. 2011 Diluted EPS Expected to be 2Sigma-Aldrich (Nasdaq: SIAL) Reports Q4 and Full Year 2010 Diluted EPS of $0.76 and $3.12, Respectively. Q4 and Full Year 2010 Adjusted Diluted EPS Were $0.83 and $3.31, Respectively. Q4 Sales Set New Quarterly High. 2011 Diluted EPS Expected to be 3Sigma-Aldrich (Nasdaq: SIAL) Reports Q4 and Full Year 2010 Diluted EPS of $0.76 and $3.12, Respectively. Q4 and Full Year 2010 Adjusted Diluted EPS Were $0.83 and $3.31, Respectively. Q4 Sales Set New Quarterly High. 2011 Diluted EPS Expected to be 4Sigma-Aldrich (Nasdaq: SIAL) Reports Q4 and Full Year 2010 Diluted EPS of $0.76 and $3.12, Respectively. Q4 and Full Year 2010 Adjusted Diluted EPS Were $0.83 and $3.31, Respectively. Q4 Sales Set New Quarterly High. 2011 Diluted EPS Expected to be 5Sigma-Aldrich (Nasdaq: SIAL) Reports Q4 and Full Year 2010 Diluted EPS of $0.76 and $3.12, Respectively. Q4 and Full Year 2010 Adjusted Diluted EPS Were $0.83 and $3.31, Respectively. Q4 Sales Set New Quarterly High. 2011 Diluted EPS Expected to be 6Sigma-Aldrich (Nasdaq: SIAL) Reports Q4 and Full Year 2010 Diluted EPS of $0.76 and $3.12, Respectively. Q4 and Full Year 2010 Adjusted Diluted EPS Were $0.83 and $3.31, Respectively. Q4 Sales Set New Quarterly High. 2011 Diluted EPS Expected to be 7Sigma-Aldrich (Nasdaq: SIAL) Reports Q4 and Full Year 2010 Diluted EPS of $0.76 and $3.12, Respectively. Q4 and Full Year 2010 Adjusted Diluted EPS Were $0.83 and $3.31, Respectively. Q4 Sales Set New Quarterly High. 2011 Diluted EPS Expected to be 8Sigma-Aldrich (Nasdaq: SIAL) Reports Q4 and Full Year 2010 Diluted EPS of $0.76 and $3.12, Respectively. Q4 and Full Year 2010 Adjusted Diluted EPS Were $0.83 and $3.31, Respectively. Q4 Sales Set New Quarterly High. 2011 Diluted EPS Expected to be 9Sigma-Aldrich (Nasdaq: SIAL) Reports Q4 and Full Year 2010 Diluted EPS of $0.76 and $3.12, Respectively. Q4 and Full Year 2010 Adjusted Diluted EPS Were $0.83 and $3.31, Respectively. Q4 Sales Set New Quarterly High. 2011 Diluted EPS Expected to be 10Sigma-Aldrich (Nasdaq: SIAL) Reports Q4 and Full Year 2010 Diluted EPS of $0.76 and $3.12, Respectively. Q4 and Full Year 2010 Adjusted Diluted EPS Were $0.83 and $3.31, Respectively. Q4 Sales Set New Quarterly High. 2011 Diluted EPS Expected to be 11Sigma-Aldrich (Nasdaq: SIAL) Reports Q4 and Full Year 2010 Diluted EPS of $0.76 and $3.12, Respectively. Q4 and Full Year 2010 Adjusted Diluted EPS Were $0.83 and $3.31, Respectively. Q4 Sales Set New Quarterly High. 2011 Diluted EPS Expected to be 12Sigma-Aldrich (Nasdaq: SIAL) Reports Q4 and Full Year 2010 Diluted EPS of $0.76 and $3.12, Respectively. Q4 and Full Year 2010 Adjusted Diluted EPS Were $0.83 and $3.31, Respectively. Q4 Sales Set New Quarterly High. 2011 Diluted EPS Expected to be 13Hydrogels used to make precise new sensor 2Hydrogels used to make precise new sensor 3Stem Cell Assurance Announces Engagement of Marcum LLP as its Independent Auditors 2
... unique human proteins on a 1x3 ... a cross section of all cellular ... high-quality results. Additional control proteins and ... validity and reproducibility., ,UNIchip protein microarrays ...
... UNIchip AV-400 contains 400 unique ... nitrocellulose-coated glass slide. The proteins, all ... Ontology classification, are arrayed in quadruplicate ... and a specific chip layout guarantee ...
... The Sub-Plates are E.Coli glycerol stocks ... well contains 50 cDNA clones with approximately ... of the a master plate well, the ... 96-well PCR to identify the positive well(s). ...
... The TNT Coupled Reticulocyte Lysate ... eukaryotic in vitro translations: a single-tube, ... Systems greatly simplify the process and ... in vitro translation results. Standard rabbit ...
Biology Products: