With heat, water and nutrients, subsurface Europa could resemble the deep -
sea ocean vents on Earth that support vast ecosystems.
Not exact matches
We started finding the same organisms that people were reporting from deep -
sea hydrothermal
vents [where hot, mineral - laden fluid flows through volcanic rock into the
ocean from deep within the Earth].
We found that the particles seen in our images, which were droplets of
ocean only hours earlier, bore evidence of large organic molecules and compounds that indicated hydrothermal activity similar to that observed at deep -
sea vents on Earth's seafloor.
More than 540 international expeditions sailed to coral reefs, hydrothermal
vents, seamounts, and open
ocean waters to assemble a comprehensive picture of the diversity, habitats, and abundance of animals and microbes living in the
sea.
Map of current land and ice separating the Weddell and Ross
seas, courtesy of Wikimedia Commons / Wutsje / CIA Octopuses have made themselves at home in most of the world's
oceans — from the warmest of tropical
seas to the deep, dark reaches around hydrothermal
vents.
Better knowledge of what governs the patterns of life at deep -
sea vents will enable responsible decisions about how to manage these deep -
ocean resources
Geysers and deep -
sea vents are hydrothermal phenomena in which water, heated and pressurized by molten rock, is released through
vents at the land surface or into the
oceans.
A study described here today at the American Geophysical Union's biennial
Ocean Sciences Meeting shows that RNA's chemical building blocks fall apart within days to years at temperatures near boiling — a finding that poses problems for some origin of life theories, especially ones picturing that life arose in scalding settings such as deep -
sea hydrothermal
vents.
That began to change last year with the discovery of DNA sequences for an organism that no one has ever actually seen living near a deep -
sea vent on the
ocean floor.
But in an Opinion paper published June 16 in Trends in Cell Biology, researchers propose that new genomic evidence derived from a deep -
sea vent on the
ocean floor suggests that the molecular machinery essential to eukaryotic life was probably borrowed, little by little over time, from those simpler ancestors.
To study the movement of
vent products, the researchers set up sediment traps and current meters near the hydrothermal
vents along the East Pacific Rise, an
ocean ridge located about 800 kilometers off the southern coast of Mexico and a mile and a half below
sea level.
Age is critical because it takes about 200 million years for oxygen isotopes in the
seas and crustal rocks to be homogenised by cycling through thermal
vents in the
ocean floor.
The other, which has gained popularity in recent years, is that deep -
sea vents at the bottom of the
ocean acted as a cradle for life, offering both heat and nutrition via fluids pumped up through Earth's crust.
Potential Europan habitats include deep -
sea colonies based on heat - loving bacteria like those found around hydrothermal
vents on Earth's
ocean floor.
Scientists have discovered unusual hot water
vents at the bottom of the Atlantic
Ocean, such as this stone chimney rising three stories above the
sea floor.
The quantitative population ecology of zooplankton with emphasis on zooplankton small - scale distribution and abundance, organic matter transport into the deep -
sea, the biology of Gulf Stream Rings, zooplankton associated with deep -
sea hydrothermal
vents, dynamics of populations on Georges Bank and on the continental shelf region of the Western Antarctic Peninsula, acoustical determination of zooplankton biomass, abundance, and size, and the census of holozooplankton biodiversity in the worlds
oceans.
You will recall that hydrothermal
vents are plumes of hot water that spew from rocks and cracks along the
ocean floor, especially in regions of
sea - floor spreading, such as oceanic ridges and rift valleys.
These
oceans can be kept warm despite their great distance from the Sun because of gravitational interactions between the moons and their host planet, and they might support the kind of life found in deep
sea vents on Earth.
National Science Foundation:
Sea Vent Viewer Extraordinary visuals take you to the bottom of the
ocean.
With declining Arctic
sea ice, I think that
ocean vents joules and slows SLR.
Exploration of deep -
sea hydrothermal
vents in other sectors of the Southern
Ocean, such as the Pacific - Antarctic Ridge [16], are likely to reveal further chemosynthetic communities.
Citation: Rogers AD, Tyler PA, Connelly DP, Copley JT, James R, Larter RD, et al. (2012) The Discovery of New Deep -
Sea Hydrothermal
Vent Communities in the Southern
Ocean and Implications for Biogeography.
Weather conditions have constrained the discovery of hydrothermal
vents at high latitudes, although there is evidence from water column plumes that
vents occur in the Arctic along the Gakkel Ridge [10], the Mohn Ridge, [11] and the Arctic Mid-
Ocean Ridge [12], and in the Southern
Ocean, in Antarctica, along the East Scotia Ridge (ESR), in the Scotia
Sea [13], in the Bransfield Strait, west of the northern Antarctic Peninsula [14], [15], and along the Pacific - Antarctic Ridge [16].
Lesson 1 - Plate Tectonics Lesson 2 - Mid-
Ocean Ridges Lesson 3 - Deep -
Sea Corals Lesson 4 - Subduction Zones Lesson 5 - Chemosynthesis and Hydrothermal
Vent Life Lesson 6 - Deep -
Sea Benthos Lesson 7 - Water Cycle Lesson 8 -
Ocean Currents Lesson 9 -
Ocean Waves Lesson 10 - Tides Lesson 11 - Energy from the
Oceans Lesson 12 - Food, Water, and Medicine from the
Sea Lesson 13 - Hurricanes Lesson 14 - Seamounts An average of 2,000 strong earthquakes and large volcanic eruptions occur every year all around the world.