File - Science with Mrs. Persico
... Hydrothermal vents are deep, dark locations on the sea floor which release high temperature fluids and chemicals into the ocean water above. They are usually found in areas of volcanic activity. Even though we might consider this to be a harsh environment, hydrothermal vents are abundant with life. ...
... Hydrothermal vents are deep, dark locations on the sea floor which release high temperature fluids and chemicals into the ocean water above. They are usually found in areas of volcanic activity. Even though we might consider this to be a harsh environment, hydrothermal vents are abundant with life. ...
Seafloor Spreading
... 1. Hot, buoyant magma from the mantle rises up a mid-ocean ridge. 2. The magma erupts as lava and forms new seafloor. Magnetic polarity is set when rock cools. 3. The newly-formed rock is pushed away from the ridge axis as more lava erupts. 4. If the oceanic crust reaches a deep sea trench, it sinks ...
... 1. Hot, buoyant magma from the mantle rises up a mid-ocean ridge. 2. The magma erupts as lava and forms new seafloor. Magnetic polarity is set when rock cools. 3. The newly-formed rock is pushed away from the ridge axis as more lava erupts. 4. If the oceanic crust reaches a deep sea trench, it sinks ...
mediterranean deep-sea biology - ICM-CSIC
... that a fauna could be found at all depths in the world’s oceans. The Mediterranean enjoyed this heroic age, best exemplified by the cruises of the Princess Alice I and II under the auspices of the Prince of Monaco. Recently there has been a new resurgence of interest in the deep Mediterranean. As a ...
... that a fauna could be found at all depths in the world’s oceans. The Mediterranean enjoyed this heroic age, best exemplified by the cruises of the Princess Alice I and II under the auspices of the Prince of Monaco. Recently there has been a new resurgence of interest in the deep Mediterranean. As a ...
Submarine hydrothermal vents: Hot springs on the seafloor OCN 201
... The most unusual and spectacular of the macrofauna discovered at the Galapagos Rift in 1977 was the giant tubeworm Riftia pachyptila, of the class Pogonophora, up to 3 m in length. These animals survive via a symbiotic relationship with chemosynthetic bacteria that live within their tissues. ...
... The most unusual and spectacular of the macrofauna discovered at the Galapagos Rift in 1977 was the giant tubeworm Riftia pachyptila, of the class Pogonophora, up to 3 m in length. These animals survive via a symbiotic relationship with chemosynthetic bacteria that live within their tissues. ...
IM_chapter9 Seafloor
... Methane hydrates are found in offshore sediments in enormous quantities. These compounds develop at depths of 660 to 1,650 feet (200 to 500 m) below sea level when decomposed organic matter contacts cold water at the high pressures found deep in layered sediments. Water molecules form an icy cage (a ...
... Methane hydrates are found in offshore sediments in enormous quantities. These compounds develop at depths of 660 to 1,650 feet (200 to 500 m) below sea level when decomposed organic matter contacts cold water at the high pressures found deep in layered sediments. Water molecules form an icy cage (a ...
Diversity, Distribution, Abundance - Census of Marine Life Maps and
... the Celebes Sea. This animal has been observed at depths to 2,700 meters, sweeping food-rich sediment into its mouth. ...
... the Celebes Sea. This animal has been observed at depths to 2,700 meters, sweeping food-rich sediment into its mouth. ...
Deep-Sea Ecosystems: Pristine Biodiversity Reservoir and
... physical factors led to the belief that abyssal plains were very stable habitats where physical and biological processes remained unchanged over short and long time scales. There is now evidence that physical disturbances occur at abyssal plains, causing important biological responses. For example, ...
... physical factors led to the belief that abyssal plains were very stable habitats where physical and biological processes remained unchanged over short and long time scales. There is now evidence that physical disturbances occur at abyssal plains, causing important biological responses. For example, ...
Hotspot Ecosystem Research on Europe`s Deep-Ocean
... and symbiotic microbial communities associated with some invertebrates are nourished by the chemical energy rising from these sources and form the basis of cold seep ecosystems (Sibuet and OluLe Roy, 2003). These often take the form of dense and endemic benthic communities, in which the high product ...
... and symbiotic microbial communities associated with some invertebrates are nourished by the chemical energy rising from these sources and form the basis of cold seep ecosystems (Sibuet and OluLe Roy, 2003). These often take the form of dense and endemic benthic communities, in which the high product ...
12.740 Paleoceanography
... c. Beyond 70 m.y., underlying diffusion of geothermal heat in is balanced by heat diffusion out of the sea floor, so it does not get much deeper until it reaches a subduction zone. 2. Paleo-depth backtracking a. In order to make oceanic reconstructions for the distant past, especially for properties ...
... c. Beyond 70 m.y., underlying diffusion of geothermal heat in is balanced by heat diffusion out of the sea floor, so it does not get much deeper until it reaches a subduction zone. 2. Paleo-depth backtracking a. In order to make oceanic reconstructions for the distant past, especially for properties ...
Chapter 15: Animals of the benthic environment
... - Methane-bearing springs on continental shelves and slopes are more common than originally thought - Possible dispersal to carcasses – support vent organisms - Take years to decompose - Use as "stepping stones ...
... - Methane-bearing springs on continental shelves and slopes are more common than originally thought - Possible dispersal to carcasses – support vent organisms - Take years to decompose - Use as "stepping stones ...
BENTHOS RESEARCH Estimated Population Densities of
... were found attached via their byssi to rock outcrops. Live mussels formed densely clustered beds of a few square meters in area. These mussels were confined to only three rock outcrops in the field. The maximum integrated population density of the two Bathymodiolus species, B. platifrons and B. japo ...
... were found attached via their byssi to rock outcrops. Live mussels formed densely clustered beds of a few square meters in area. These mussels were confined to only three rock outcrops in the field. The maximum integrated population density of the two Bathymodiolus species, B. platifrons and B. japo ...
Deep sea, the last great unexplored earth - Archimer
... maxillipeds to ingest its epibiotic microbial community composed of epsilon-proteobacterial, gammaproteobacterial thiotrophs, and occasionally of gamma-proteobacterial methanotrophs, and S. crosnieri assimilates these epibiotic Bacteria in the intestine as nutrition source. Dr Karine Alain (CNRS-UBO ...
... maxillipeds to ingest its epibiotic microbial community composed of epsilon-proteobacterial, gammaproteobacterial thiotrophs, and occasionally of gamma-proteobacterial methanotrophs, and S. crosnieri assimilates these epibiotic Bacteria in the intestine as nutrition source. Dr Karine Alain (CNRS-UBO ...
Hydrothermal Vents - The Corn Group Unicorn Web Site
... In collaboration with oceanographers from the Monterrey Bay Aquarium Research Institute (MBARI), a team of geologists at Washington University in St. Louis is using a rare instrument on the ocean floor just west of California. One of their earliest projects was to see if it's possible to capture car ...
... In collaboration with oceanographers from the Monterrey Bay Aquarium Research Institute (MBARI), a team of geologists at Washington University in St. Louis is using a rare instrument on the ocean floor just west of California. One of their earliest projects was to see if it's possible to capture car ...
ecology of cold seep sediments
... Ecosystems known as cold seeps are found where reduced sulphur and methane emerge from seafloor sediments without an appreciable temperature rise. Cold seep environments are among the most recently discovered marine habitats; the first such system was found just 20 yr ago, on the Florida Escarpment ...
... Ecosystems known as cold seeps are found where reduced sulphur and methane emerge from seafloor sediments without an appreciable temperature rise. Cold seep environments are among the most recently discovered marine habitats; the first such system was found just 20 yr ago, on the Florida Escarpment ...
Oceanographer publishes atlas of seafloor volcanoes
... volcanoes that cross the world's oceans. Kelley was lead author of the chapter on hydrothermal vents, including the black smokers venting metal-rich fluids of more than 700 F that she has studied for decades. Local examples include the Endeavour vent fields and Axial Seamount, off the Pacific Northw ...
... volcanoes that cross the world's oceans. Kelley was lead author of the chapter on hydrothermal vents, including the black smokers venting metal-rich fluids of more than 700 F that she has studied for decades. Local examples include the Endeavour vent fields and Axial Seamount, off the Pacific Northw ...
3. deep-sea ecosystems: pristine biodiversity reservoir and
... physical factors led to the belief that abyssal plains were very stable habitats where physical and biological processes remained unchanged over short and long time scales. There is now evidence that physical disturbances occur at abyssal plains, causing important biological responses. For example, ...
... physical factors led to the belief that abyssal plains were very stable habitats where physical and biological processes remained unchanged over short and long time scales. There is now evidence that physical disturbances occur at abyssal plains, causing important biological responses. For example, ...
Student report - cloudfront.net
... magma and the vents are similar to geysers on land. The water emitted is hotter than the boiling point of water especially due to the enormous pressure put on the water by the ocean or the rock around, making it about 400 degrees Celsius. The vents can be found at any depth, with the shallowest at 3 ...
... magma and the vents are similar to geysers on land. The water emitted is hotter than the boiling point of water especially due to the enormous pressure put on the water by the ocean or the rock around, making it about 400 degrees Celsius. The vents can be found at any depth, with the shallowest at 3 ...
Hydrothermal Vents
... Hot water streaming out of vents often plumes for 200 meters above the sea floor because it is less dense than surrounding cold water. Plumes probably carry larva into nearby currents. However, this still may not account for the great distances between vents. Scientists continue to test other hypoth ...
... Hot water streaming out of vents often plumes for 200 meters above the sea floor because it is less dense than surrounding cold water. Plumes probably carry larva into nearby currents. However, this still may not account for the great distances between vents. Scientists continue to test other hypoth ...
ppt
... Tectonic forces can control the extent and nature of hydrothermal activity. Documented for several sites on the Mid-Atlantic Ridge. ...
... Tectonic forces can control the extent and nature of hydrothermal activity. Documented for several sites on the Mid-Atlantic Ridge. ...
Origin of Life
... gradient formed between the hydrothermal vent water, and the extremely cold water, 4ºC (39.2ºF), which surrounds the vent at the bottom of the ocean. The temperatures at this gradient would be suitable for organic chemistry to occur. Debates still remain, however, as to the gradient's effectivenes ...
... gradient formed between the hydrothermal vent water, and the extremely cold water, 4ºC (39.2ºF), which surrounds the vent at the bottom of the ocean. The temperatures at this gradient would be suitable for organic chemistry to occur. Debates still remain, however, as to the gradient's effectivenes ...
Spirula
... • Several thousand species have adaptations that allow them to survive in the deep-sea environment. • The lack of light has had the most impact in shaping the organisms of the deep sea. • Many deep-sea animals exhibit ...
... • Several thousand species have adaptations that allow them to survive in the deep-sea environment. • The lack of light has had the most impact in shaping the organisms of the deep sea. • Many deep-sea animals exhibit ...
The deep sea The deep sea (below 1km) is by far the largest
... The single largest source of the deep-sea water masses is the Southern Ocean around Antarctica where cold and saline surface waters begin to sink due to its high density. The descent of the Antarctic bottom water (AABW) into the deep sea and equivalent waters from the Arctic is part of a global hydr ...
... The single largest source of the deep-sea water masses is the Southern Ocean around Antarctica where cold and saline surface waters begin to sink due to its high density. The descent of the Antarctic bottom water (AABW) into the deep sea and equivalent waters from the Arctic is part of a global hydr ...
Chapter 9 - Oceans @ Duke
... Dubilier 2009). By microbial mediation, the rich source of chemical energy supplied from the deep ocean interior through vents allows the development of densely populated ...
... Dubilier 2009). By microbial mediation, the rich source of chemical energy supplied from the deep ocean interior through vents allows the development of densely populated ...
Hydrothermal Vents
... times a day. It spouts a column of water heated by volcanic rock deep within the Earth's crust. A hydrothermal vent is a geyser on the seafloor. It continuously spews super-hot, mineral-rich water that helps support a diverse community of organisms. Although most of the deep sea is sparsely populate ...
... times a day. It spouts a column of water heated by volcanic rock deep within the Earth's crust. A hydrothermal vent is a geyser on the seafloor. It continuously spews super-hot, mineral-rich water that helps support a diverse community of organisms. Although most of the deep sea is sparsely populate ...
Evan D. Richert - Census of Marine Life Secretariat
... Will the state of knowledge about biodiversity or oceanographic processes be sufficient to incorporate into ecosystems-based management in the foreseeable future? And will this even prove to be interesting? The answers are “YES” if the goals and questions are properly formulated. For example, a scie ...
... Will the state of knowledge about biodiversity or oceanographic processes be sufficient to incorporate into ecosystems-based management in the foreseeable future? And will this even prove to be interesting? The answers are “YES” if the goals and questions are properly formulated. For example, a scie ...
Cold seep
A cold seep (sometimes called a cold vent) is an area of the ocean floor where hydrogen sulfide, methane and other hydrocarbon-rich fluid seepage occurs, often in the form of a brine pool. ""Cold"" does not mean that the temperature of the seepage is lower than that of the surrounding sea water. On the contrary, its temperature is often slightly higher. Cold seeps constitute a biome supporting several endemic species.Cold seeps develop unique topography over time, where reactions between methane and seawater create carbonate rock formations and reefs. These reactions may also be dependent on bacterial activity. Ikaite, a hydrous calcium carbonate, can be associated with oxidizing methane at cold seeps.