Alissa for a hydrothermal vent, where would you look?

Alissa Jacobs

BIOL 1080

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Article #2 – Deep Sea Vents

1/24/2018

1.     What is
the source of primary productivity in hydrothermal vent regions? How does this
differ from the open water epipelagic zone and coral reefs?

The source of primary productivity in hydrothermal
vent regions is hydrogen sulfide. This differs from the open water epipelagic
zone and coral reefs because sunlight is their source of primary productivity
in hydrothermal vent regions, not hydrogen sulfide.

2.     If you
were a scientist looking for a hydrothermal vent, where would you look? Why?
Are some regions of the ocean more prone to have hydrothermal vents?

If I was a scientist looking for a hydrothermal
vent, I would look near the mid-ocean ridge and where there are no signs of
life because I know from the previous question that hydrothermal vents are
sourced by hydrogen sulfide. Hydrogen Sulfide is hazardous to any living
things, so therefore no sea life would be able to live near them. Yes, some
regions of the ocean are more prone to having hydrothermal vents.

3.     Propose
a hypothesis that would explain how invertebrate larvae find their way to
hydrothermal vents.

A hypothesis that would explain how invertebrate
larvae find their way to hydrothermal vents would be that Invertebrate larvae
are taken away by the water currents and tend to settle and develop when they
get to a high chemical concentration zone.

4.     If
hydrothermal vents are temporary habitats, then what is the evolutionary point
of developing adaptations for these habitats?

If hydrothermal vents are temporary habitats, then
the evolutionary point of developing adaptations for these habitats is that the
organisms living in these habitats support symbiotic bacteria.

5.     Could a
hydrothermal vent community exist without symbiotic bacteria? Explain.

No, a hydrothermal vent community could not exist without symbiotic bacteria
because the symbiotic bacteria are responsible for the breakdown of hydrogen
sulfide to produce energy.