Nutrients variations in oceans

Question 1

Where does 20% of oceans energy (Photosynthesis) occur?

Answer 1

Continental shelf

Question 2

What are nutrients levels like at the surface?

Answer 2

Low

Question 3

What are nutrients like where their is a upwelling of water?

Answer 3

High levels of nutrients

Question 4

What is the nutrient process?

Answer 4

-As sea ice forms, salt is expelled from the ice
-saline water sinks
-less salty and less dense water rises to the surface, carrying nutrients
-phytoplankton uses the nutrients to grow

Question 5

How does plankton go to oil?

Answer 5

-Phytoplankton accumulates on sea floor
-the algal biomass was transformed into organic rich sludge
-organic sludge was deposited on sea floor due to its wieght
-gradually changed to claystone and compressed

Question 6

What is antarctic food web?

Answer 6

Many animals rely on krill like:
squid
seabirds
whales
seals
penguins

Seals eat penguins