Life in Water

1
Chapter 3

• Life in Water

2
The Water Cycle
3
Important Factors

• Light
• Temperature
• Water Movement
• Salinity
• Oxygen

• Human Influences
• Competition
• Ecological Niche
• Physical Structures

4
Ocean Structure
5
Kelp and Reef Distribution
6
Kelp Forest
7
Kelp Structure
8
Coral Reef
9
Reef Types
10
Shore Zonation
11
Locations of Salt Marshes and Mangroves
12
Salt Marshes
13
Salt Marsh Cross-Section
14
Mangroves
15
Mangrove Cross-Section
16
River Distribution
17
Riparian System
18
Lake Distribution
19
Lakes
20
Lake Structure
21
Lake Turnover
22
Lake Productivity
23
Introduced Species
24
Invasive Species
25
Summary

• The hydrological cycle exchanges water among
  locations
• The biology of aquatic environments corresponds
  to abiotic factors such as light, temperature,
  and water movement and to chemical factors such
  as salinity and oxygen