Marine Bio Lecture Notes: Day 1

What are 5 challenges of working in the ocean?

Conditions Vary

Hazardous Marine Life

Humans cannot breathe underwater

Expenses

Visibility

Name two things that effect water density

Temperature and salinity

What is viscosity?

A fluid’s resistance to flow/ how “thick” water can be

Water is an effective heat basin/ water holds heat very well

What is the relationship between water and heat?

It scatters/refracts

What happens as light penetrates water?

Blue

What colors show up best a large depths?

Moves carbon throughout the ecosystem to all trophic levels

Why is the carbon cycle important in the ocean?

Areas with little to no oxygen

What is a dead zone?

Higher temperature=lower O2

How does temperature affect oxygen concetration?

Wind→sun is the driving factor of wind

What creates/drives ocean currents?

The continental plates

What are the ocean boundaries?

Through convection

How do the continents move?

Shallow areas that extend off of the continents→ bulk of marine biodiversity is found in these areas.

What is the continental shelf?

Start the carbon cycle

Base of the food chain

They produce O2

Name 3 reasons plankton are important to the planet:

Yes, because they do not actively swim against the current—> zooplankton

Are jellyfish plankton?