Subscribe to our free daily newsletters
. 24/7 Space News .




Subscribe to our free daily newsletters



CARBON WORLDS
Deep-diving technology finds little filter feeder has giant carbon cycling impact
by Staff Writers
Washington DC (SPX) May 04, 2017


Bathochordaeus is considered a giant among larvaceans. The giant larvacean's claim to fame is the huge mucous house it builds. The house is made up of two filters and basically functions as an elaborate feeding apparatus. They eat tiny particles of dead or drifting plants and animals that float through the water column. The outer filter traps larger particles too big for the animal to eat, while the inner filter guides smaller food particles into the larvacean's mouth. Eventually the filters get clogged and the larvacean abandons them. The sinking houses, packed with food. See video here

Deep-diving Technology Finds Little Filter Feeder Has Giant Carbon Cycling Impact: Using a novel deep-sea technology, scientists have measured for the first time how a species of zooplankton called giant larvaceans contributes to the transfer of atmospheric carbon to the deep ocean. Data from the instrument DeepPIV revealed that giant larvaceans filter carbon particles at higher rates than any other zooplankton filter feeder.

The technology may also be used for more accurate measurements of carbon removal by other deep-water organisms, an essential parameter for modeling oceanic ecosystems. Giant larvaceans, which are approximately pinky finger-sized plankton, live in the upper 400 meters of the ocean and build filtering "houses" so fragile that they cannot be analyzed in a lab.

As giant larvaceans beat their tails, they propel particles from the water into these mucus houses for digestion. What's more, when the larvaceans discard their old, nutrient-rich houses, these structures sink to the sea floor, a significant contribution to moving organic materials into deeper water.

Until now, scientists have only been able to estimate giant larvacean filtration rates based off the rates of other zooplankton.

To measure their contribution more directly, Kakani Katija and colleagues launched DeepPIV, which deployed from a remotely operated vehicle and visualized fluid motion, in Monterey Bay, California.

Katija et al. observed giant larvaceans and other zooplankton in the genus Bathochordaeus and collected 24 flow measurements. They found that one blue-tailed species of giant larvaceans had a filtration rate higher than the previously reported record-holding plankton, salps.

By combining filtration rates with data on larvacean abundance, Katija et al. calculated the zooplankton could filter their 200 meter principal depth range in Monterey Bay in 13 days. As a next step, the scientists hope to compare the filtering rates at this site to areas around the world that are home to giant larvaceans.

Research paper

CARBON WORLDS
Graphene withstands high pressure, may aid in desalination
La Jolla, CA (SPX) Apr 27, 2017
Professor Klaus Ley, M.D., has been selected as this year's winner of the Eugene M. Landis Award, the Microcirculatory Society's top honor, in recognition of his pioneering work in vascular biology and microcirculation. The microcirculation comprises all the small blood vessels in all tissues and organs and their contents (blood plasma and blood cells). A member of the Microcirculatory Soc ... read more

Related Links
American Association for the Advancement of Science
Carbon Worlds - where graphite, diamond, amorphous, fullerenes meet


Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only

Comment using your Disqus, Facebook, Google or Twitter login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

CARBON WORLDS
AGU journal commentaries highlight importance of Earth and space science research

NASA spacesuits over budget, tight on timeline: audit

'Better you than me,' Trump tells record-breaking astronaut

Lunar, Martian Greenhouses Designed to Mimic Those on Earth

CARBON WORLDS
New Russian Medium-Class Carrier Rocket Could Compete With SpaceX's Falcon

RSC Energia, Boeing Hammer Out a Deal on Sea Launch Project

India seeks status as a major space power with more satellite launches

India to Launch Carrier Rocket With Higher Payload Capacity in May

CARBON WORLDS
How Old are Martian Gullies

Opportunity Nears 'Perseverance Valley'

Engineers investigate simple, no-bake recipe to make bricks on Mars

SwRI-led team discovers lull in Mars' giant impact history

CARBON WORLDS
China's cargo spacecraft completes in-orbit refueling

China courts international coalition set up to promote space cooperation

Commentary: Innovation drives China's space exploration

Macao marks 2nd China Space Day with astronaut sharing space experience

CARBON WORLDS
ViaSat-2 Satellite to Launch on June 1

ESA boosting its Argentine link with deep space

Arianespace, Intelsat and SKY Perfect JSAT sign a new Launch Services Agreement, for Horizons 3e

Airbus and Intelsat team up for more capacity

CARBON WORLDS
Penn researchers quantify the changes that lightning inspires in rock

Russian scientists create new system of concrete building structures

New organic lasers one step closer to reality

First luminescent molecular system with a lower critical solution temperature

CARBON WORLDS
Research Center A Hub For Origins of Life Studies

ISS investigation aims to identify unknown microbes in space

'Iceball' Planet Discovered Through Microlensing

'On Verge of Most Profound Discovery Ever,' NASA Tells US Congress

CARBON WORLDS
ALMA investigates 'DeeDee,' a distant, dim member of our solar system

Nap Time for New Horizons

Hubble spots auroras on Uranus

Cold' Great Spot discovered on Jupiter




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News






The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement