Algae
Phytoplankton P
- Characteristics:
Free-floating plants that are mostly unicellular and form the base of the aquatic food chain
- Range:
Worldwide
- Size:
Microscopic
- Habitat:
Fresh and salt water
- Fun Fact:
Phytoplankton are primary producers, effectively producing much of the oxygen we breathe on land
Sea lettuce P
Ulva lactuca
- Characteristics:
- Bright green, sheet-like frond
- Range:
- Worldwide in temperate and tropical climates
- Size:
- Mats can reach up to 3ft (1m) in width
- Habitat:
- Attaches to hard substrate in estuarine intertidal and shallow subtidal zones
- Fun Fact:
- Used in many personal care, gardening, and fertilizer products
