Flashcards in November 16 Deck (27):
What part of the oceans are most productive?
The water closer to the surface where there is sunlight
What is a thermohaline circulation?
Ocean circulation is caused by temperature and salinity changes.
What is blue carbon?
Areas in the ocean full of carbon, carbon sinks
How much of the worlds carbon is in the ocean?
Of ocean carbon how much is held by costal vegetation?
Name three types of costal vegetation that stores carbon
Mangroves, salt marsh, sea grass
How old is ocean life?
3.5 billion years
How old is land life?
450 million years
What is more diverse marine life or terrestrial
What are the three ocean zones?
What ocean zone has the most photosynthesis occurring?
How many people live off of ocean protein?
Why is the jelly fish population increasing?
Large fish and turtles are being taken from the ocean
What is trawling?
A type of fishing that ruins the ocean floor because it drags a net along the ground
Are marine protected areas effective?
Yes and they result in a decrease in coral loss and increase fish biomass
What is the international target for marine protected areas?
What five group must agree on the location of marine protected areas?
Is fishing allowed in marine protected areas?
What is an NTA in a MPA?
A no take zone in a marine protected area
Why are rockfish important to preserve?
They mature very slowly and have a long life and slow reproduction.
How many sharks are endangered?
Approximately half of species
Are sharks k or r species?
What happens to a shark if it's finned?
What is the result of a depletion of sharks?
A trophic cascade and an increased amount of rays
What do whale sharks eat?
What are coral reefs?
A pulse of diversity in the oceans with 4000 species and they are the most rapidly decreasing ecosystem