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:6/17/2015)... June 17, 2015  Synaptics Inc. (NASDAQ: ... today announced that Xiaomi, one of the world,s ... ClearPad ® family of capacitive touchscreen ... circuits (DDICs) for its latest smartphones, the Xiaomi ... for full in-cell display solutions and DDICs in ...
(Date:6/16/2015)... Fingerprint Cards has received an order ... company,s portfolio from one of its module partners in ... place during the third quarter 2015. The sensors will be ... Jörgen Lantto, CEO of FPC, comments: " This ... interest from smartphone OEMs in integrating touch fingerprint sensors in ...
(Date:6/15/2015)... Inc. (NASDAQ: NXTD ) ("NXT-ID" or the "Company") a ... announces that its leading payment security technology, the Wocket® smart ... NYC June 18th. Digital Experience! @ NYC is ... to over 300 of the top media covering the sector. ... New York City from 6:00 to ...
Breaking Biology News(10 mins):Synaptics Touchscreen and Display Driver IC Solutions Power Xiaomi's Latest Flagship Smartphones 2Synaptics Touchscreen and Display Driver IC Solutions Power Xiaomi's Latest Flagship Smartphones 3FPC Receives Order for Touch Fingerprint Sensors of 375 MSEK 2Wocket Smart Wallet Exhibiting at Pepcom Digital Experience! @ NYC June 18th 2Wocket Smart Wallet Exhibiting at Pepcom Digital Experience! @ NYC June 18th 3
... the Amazon before the arrival of Europeans, with little ... of research led by Crystal McMichael and Mark Bush ... overturns the idea the Amazon was a cultural parkland ... vast tracts of the landscape. The Amazon Basin ...
... PHILADELPHIA Healthy humans harbor an enormous and diverse ... their intestines. These microbial partners provide beneficial aid in ... development of a healthy immune system. In a new ... David Artis, PhD, associate professor of Microbiology, and Michael ...
... descend on Virginia Tech beginning June 24 bringing with them ... boost to the Blacksburg area in excess of $2 million. ... the largest conferences ever held in Blacksburg with 13 simultaneous ... molecules macromolecules that are having a huge impact ...
Cached Biology News:Scientists reconstruct pre-Columbian human effects on the Amazon Basin 2Brothers in arms: Commensal bacteria help fight viruses 2Scientific meeting at Virginia Tech will make more than $2 million economic impact 2Scientific meeting at Virginia Tech will make more than $2 million economic impact 3
(Date:7/7/2015)... ... July 07, 2015 , ... uBiome, the leading microbial genomics company, ... microbiome sampling kits and full 16S laboratory analysis. The goal is to fast-track a ... also have access to their own dashboard, enabling them to view and compare the ...
(Date:7/7/2015)... ... July 07, 2015 , ... Since its inception in ... What began as a conference for European Statistical Programmers, has evolved in the ... biometrical area. Statistical Programmers, Data Managers and Biostatisticians all over the world, share, ...
(Date:7/7/2015)... ... July 07, 2015 , ... ... Admin system was developed to solve many of the complex logistical and ... studies that involve multiple clinical sites and/or remote data coordination centers. , ...
(Date:7/6/2015)... , ... July 06, 2015 , ... ... fields holds potential to reveal how blood flows in the brain during stroke, ... the brain. , A new article published in the journal Neurophotonics ...
Breaking Biology Technology:uBiome to Award Grant of up to $100k for Groundbreaking Microbiome Research 2uBiome to Award Grant of up to $100k for Groundbreaking Microbiome Research 3PhUSE Delighted to Welcome Member Number 5.000 2ActiGraph Launches CentrePoint Cloud-based Study Management Software Platform 2ActiGraph Launches CentrePoint Cloud-based Study Management Software Platform 3Reducing Stroke Damage May be Next Application for OCT Technology Now Widely Used in Eye and Vision Healthcare 2Reducing Stroke Damage May be Next Application for OCT Technology Now Widely Used in Eye and Vision Healthcare 3
... ... receiving earlier seasonal flu shot can double the risk of contracting the ... Health Organization and delays in the flu shot program in some of ... safety and efficacy of all flu shots along with the H1N1 pandemic ...
... , LES ULIS, France, October 14 ... Market Quantel`s 308 Excimer System for,Psoriasis and Vitiligo in the ... QUA), a leading manufacturer of solid state lasers,announced today that ... leading researcher and developer of light-based,systems for medical and cosmetic ...
... OXFORD, England, October 14 PharmaTelevision(R), ... announced that it is teaming up with the EBD ... Media Training. , Dr Fintan ... said, "Standing out and attaining share of voice is,becoming ...
Cached Biology Technology:FluStop natural flu remedy sales increase 700% with confusion about new flu shot study and H1N1 2Quantel Signs a Distribution Agreement With US-based National Biological 2PharmaTelevision Turns the Media Spotlight Upon BIO-Europe 2
... Rabbit polyclonal to Rad51 ( ... Antigen: Synthetic ... to N terminal amino acids 15-29 ... Entrez Gene ID: 5888 ...
... Sequenase Dye Primer Manual Cycle Sequencing Kit ... dye-labeled primers and high-resolution fluorescence scanners. Sequencing ... standard slab gel electrophoresis and scanning of ... products. The kit components have been ...
... performance agitation and temperature control for microbiology ... wells independently and is suitable for DASGIP ... working volume. Its temperature ranges from approximately ... well is equipped with an individual electrical ...
... SYBR Green II RNA gel stain is ... bright fluorescence when bound to RNA and low ... with either formaldehyde/agarose or polyacrylamide gels using laser ... 50 minigels. A 1 mL unit size (S-7568) ...
Biology Products: