Bio 112 Field Trip Images

                                        Rocky Shore Intertidal Community
                                        (Photos by Peter Sripinyo, Kevin Kazules, and Paul Kemp)
 

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                                                                   Rocky Shore Intertidal Community

                                                            Splash Zone

  Buckshot (or Acorn) Barnacles [=Crustacean] (Periwinkles & Limpets too)   /  Checkered Periwinkles [=Mollusc]
   [These are all very small; < 1/4 inch!]

                                                    Upper Intertidal Zone


                                      Giant Green Anemone (4 inches)   /  Brooding Anemones (< 1 inch) [both are Cnidaria]
            Black Turban (or Tegula) Snails (Left) [=Mollusc]   /   Blue-claw Hermit Crabs [=Crustacean] love tegula shells [~1/2 inch]


                      Thatched Barnacles [=Crustacean]   /  Troglodyte Chiton [=Mollusc] (Sea Lettuce Algae & Buckshot barnacles too)


                                 Coralline Algae [=Red Algae]     /   Two kinds of Coralline Algae (Right)


                                 Spongeweed with closeup (aka Dead-man's fingers) [=Green Algae]
          California Cling Fish (camouflaged) [=Vertebrate]   /   Striped Shore Crab [=Crustacean] (gets my vote as smartest Arthropod)


                                                    Mid Intertidal Zone

                                            Sargassum [=Brown Algae] (with closeup up of floatation bladders)
      Two species of Rockweed  [=Brown Algae] (left is Pelvetia, right is Fucus; both form low stature kelp beds)

 
  
                             Giant Kehole Limpet [=Mollusc]  /  Black Sea Hare [=Mollusc]




                                           California Sea Hare ejecting ink! [=Mollusc] 

                                                            Brittle Stars [=Echinoderms]


      Leaf Barnacle (aka Goose-neck barnacle) [=Crustacean]   /  California Mussel [=Mollusc]


                               Conspicuous Chitons are found under rocks because they sense light [=Mollusc]

                                                Lower Intertidal Zone

                                Surfgrass [=Angiosperm] with Sargassum and Coralline Algae

                                            Purple Sea Urchin with closeup [=Echinoderm] (short, blunt spines)
                                                        Red Sea Urchin [=Echinoderm] (longer, sharper spines)


            Rainbow Seastar with underside showing tubefeet (tiny "suction cups") [=Echinoderm]
 

                                       Knobby Seastar & Ochre Seastar (Radial symmetry with five arms)

                     Warty Sea Cucumber [=Echinoderm] (left)  /  Giant Keyhole Limpet [=Mollusc]


                          Wavy Top Snails [=Mollusc] (Left)   /   CA Spiny Lobster [=Crustacean] (Right)


                                         Green Abalone [=Mollusc]    /   Two-spotted Octopus [=Mollusc]

                                                                    Look! - a baby Two-spotted Octopus
                     Southern Kelp Crab (12 inches; body 5 inches)     /    Masking Crab or "Decorator" Crab 
                     The big and small of the crabs [=Crustaceans]
                         Wooly Sculpin (common tidepool fish)    /   Scorpion Fish (has poisonous spines!) [both are vertebrates] 
                            [Fish are found throughout the intertidal zone, as well as the Sublittoral Zone and open oceans, of course]


                               Sub-Littoral Zone (below the lower intertidal zone)
 
                             Giant Bladder Kelp with closeup of blade and bladder [=Brown Algae]
                                        (I'm holding mostly the holdfast which was torn loose in a storm)


                                            Feather Boa Kelp with closeup of holdfast [=Brown Algae]
 

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