Plankton Vocabulary

2. Unicellular algae that can be both phytoplankton and sometimes bioluminescent
3. Planktonic organisms that spend only a part of their life cycle as plankton
6. Extremely small-sized plankton, smaller than microplankton
8. A close and long-term interaction between different biological species
9. The position an organism occupies in a food chain, indicating its feeding relationship
12. Small animals that feed on phytoplankton or other zooplankton
15. Planktonic organisms that spend their entire life cycle in the planktonic phase
16. A type of phytoplankton with a silica-based cell wall, often shaped like a glass shell
18. other organisms
19. Larger-sized plankton, visible under a microscope
20. A rapid increase in the population of planktonic organisms, often causing discoloration of the
21. organisms that obtain their energy by consuming other organisms

1. Free-swimming aquatic organisms, such as fish and squid, capable of active movement
4. A bloom of harmful, often toxic, phytoplankton that can lead to the discoloration of water
5. Microscopic, photosynthetic organisms that form the base of the aquatic food chain
7. Zooplankton that remain in the planktonic phase throughout their entire life cycle
10. Depth The depth in the water column where the rate of photosynthesis equals the rate of
11. Pertaining to the bottom of a body of water; organisms living on or in the substrate
13. Microscopic organisms that drift or float in aquatic environments
14. Organisms that produce their own food through processes like photosynthesis
17. Small crustaceans that are a common type of zooplankton