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Cold Seeps

Pogonophores and bathymodulus mussels around a seep site

In November 2007 MARUM scientists were suprised by the extreme amounts of biomass they found at cold seeps off the coast of Pakistan. This proved that cold seeps - just like hot vents - can be hot spots for life, too. more info

thousands of crabs on bathymodulus mussels
With a calibratet funnel the amount of methane being released by the seep is measuered

With a calibrated funnel the MARUM scientists measure methane rising form the sea floor. The amount of methane gives a clue towards the total amount of energy available for the organsims living around a seep.

Methane rises over a bacterial mat
Pogonophores close to a cold seep

Cold seeps are oases that provide nourisment for dense aggregations of animals, for instance vestimentifera.

Pogonophores en masse
Such carbonates are often found at cold seeps

At cold seeps the activity of microorganisms causes carbonates to form. These are hard substrates that mussels and pogonophores need to anchor themselves.

Mussels and pogonophores need a hard substrate to anchor to
A bacterial mat as a flokati look-alike

Off Pakistan some cold seeps lay in anoxic regions. At these spots only microbiotic life was possible, but in what masses: The strands of bacteria looked uncannily like a flokati carpet .

In an anoxic environment bacteria formed volcano like structures around the seeps

Gladly we will provide you with more information, higher resolution and/or further pictures.

We can also offer spectacular video material from cold seeps in high resolution.

Please contact us:

NamePhoneFaxe-mail
Gerdes, Albert+49  421 218 - 65540+49  421 218 - 65505e-mail address
Stone, Jana+49  421 218 - 65541+49  421 218 - 65505e-mail address
 
 
Imprint | © marum | This page was last updated by: Jana Stone. Date: 10-11-2011, 01:08 PM 58