Flashcards in Lecture 16 - Hydrothermal Vents Deck (10):
What are hydrothermal vents and where do they form
They form at mid ocean ridges and the subduction zones between oceanic and continental crust
What are the two types of vent?
Black and white smokers
Could you draw a diagram of how a hydrothermal vent works
What are the four types of light emmited at thermal vent?
Energy obtained from hydrogen suplhide which powers life WITHOUT THE SUN :O
What is the equation for chemosynthesis
CO2 + S2- + O2 + H2O ---> CH2O + SO2 2-
Name the six key fauna found here
Give the ecology of the tube worm - Pompeii Worm
Lives in the highest temp known for any organism. Head in seawater at 22oC and rear in vent water at 80oC. Has a carpet of bacteria on its back
Explain a relation of symbiosis in these areas
Giant white clams live on nutrients produced by symiotic bacteria in gills. Wedge their foot into cracks