Lecture 5: Aquatic Niche Species

Question 1

What are the 2 broad divisions water in both ocean and other aquatic systems?

Answer 1

Pelagic: everything thats off the bottom of the aquatic environment
Benthic: on the bottom of the aquatic environment

Question 2

What are the ocean zones?

Answer 2

Epipelagic: surface-200m deep, and this is where photosynthetic organisms reside
Mesopelagic: 200-1000m depth (animals)
Bathypelagic: 1000-4000m deep (animals)
Abyssal
Hadal

Question 3

What is Limnology?

Answer 3

The study of inland aquatic systems
Running water, lakes, ponds, wetlands

Question 4

What are the three horizontal divisions of a river?

Answer 4

Wetted channel
Active channel
Riparian zone

Question 5

What are the vertical divisions of the river?

Answer 5

Water column
Benthic zone
Hyporheic zone (where surface water meets ground water (hyporheos)
Phreatic zone (groundwater, phreatobites which includes amphipod crustaceans, small catfishes, small snails)