1. Tide Pool Ecology Objectives: Describe the ecology of a tide pool.
Describe the abiotic and biotic factors affecting organisms living in a tide pool.

2. Ecology Terms 2. food chain 3. food web 1. detritus
organic matter such as animal wastes and bits of decaying tissue
2. food chain
the steps of energy transfer from primary producers through consumers
3. food web
all of the interconnecting feeding relationships (chains) in a community

3. Tide Pools found in the intertidal zone
part of the shore between the high and low tide marks.
form in depressions in rock when the tide recedes
Usually on a flatter bench

4. Organisms Producers Consumers Algae phytoplankton sea cucumbers
urchins
small crustaceans (crabs and shrimp)
snails
eels
sculpin and other small fish
brittle stars
anemones
marine worms

5. What conditions might affect the organisms in the tidepools?

6. Abiotic factors Temperature 2. Salinity
fluctuates greatly throughout the day and year due to the sun's heat and changes in weather/seasons
2. Salinity
increases when water evaporates
decreases when freshwater rain and runoff enters pools

7. Biotic factors
competition for space (shelter from sun/heat in crevices/caves)
competition for food
ability to avoid predators

8. Tide Pool Food Web Have at it!
Use 6 different organisms that you found in the tidepools and draw a food web.
Label:
Producers
Levels of consumers
Organism (common name and Phylum)