Tide Pools

By: Chikako Barnes

Locations of Tide Pools

Tide pools are often times located along the Pacific coast from southern Alaska to parts of South America. They are also around Australia, the British Isles, Hawaii, and the Atlantic North of Cape Cod. Sometimes they will also be at warmer places with rocky shores. Tide pools don't form unless there is a rocky shore. On the map at right, the tide pools will be located on the coast surrounding the Pacific Ocean.

Tide Pool Conditions

Average Temperature: 62.6 degrees fahrenheit

Average Density: 1020 to 1029 kg/cubic meter

Average Pressure: 14.5 to 14.7 lb/cubic inch

Average Salinity: 35 ppt

What to Bring

  • Sunscreen
  • Water Shoes (so you don't slip on wet rocks)
  • Towel
  • Hat
  • Camera (instead of removing creatures from their habitat, take pictures)
  • Sunglasses
  • Water bottles

The Bottom of a Tide Pool

Tide pools form along rocky shores, so the sea floor of a tide pool will be rocky with lots of slimy green or red algae growing on the rocks. There are also many creatures that stick to the sides of the tide pool and blend in with the rocks. These creatures include star fish, abalones and mussels. When tide pooling, you should always pay attention to creatures stuck to the wall and floor as well as in the open water.
In the picture at right, we can see the rockiness of the inside of the tide pool and it's surrounding area. Also, we see different type of anemones lining the interior of the pool within it's rocky walls.There are a lot of other creatures that are clinging to the rocks and in little nooks of the tide pool.

What to Look For

  • Starfish (echinodermata, asteroidea)
  • Anemones (cnidaria, anthozoa)
  • Hermit crabs (arthropoda, malacostraca)
  • Mussels (mollusca, bivalvia)
  • Barnacles (arthropoda, cirripedia)
  • Sea urchins (echinodermata, echinoidea)
  • Abalones (mollusca, gastropoda)
  • Nudibranches (mollusca, gastropoda)
  • Seaweed (heterokontonphyta, phaeophyceae)
Big image

All About Science

High Tide, Low Tide

Tides affect organisms in a tide pool because during high tide, the tide pools are covered up and replenishing ocean water nutrients. During low tide, the tide pools are exposed. The sun warms up the water and some water evaporates so the water in the tide pools tend to be warmer and saltier.

Invasive Species

  • Sea slug (phidiana hiltoni)
  • Gulfweed (sargrassum muticum)
  • Green crab (carcinus maenas)


There are no particularly useful resources in a tide pool found. People should not be taking resources from tide pools because they are protected.

Our Impact

  • Number of fish are decreasing because of fishing
  • Shellfish die when people collect shells
  • Tourism leads to more people which can harm or kill tide pools
  • Tide pools are very delicate and should always be carefully considered
  • Pollution causes global warming so creatures die because of impurities in the air and water

How We Can Help

  • Less fishing
  • Don't touch tide pools
  • Don't litter in or near tide pools
  • Watch where you're stepping so you don't accidentally trample organisms
  • Reduce pollution in the air and water
  • Reduce global warming and climate change
  • Don't disturb wildlife

Enjoy Your Visit!