1. Pay Attention

2. Your data

3. Credits to Peter Sripinyo, Kevin Kazules and Paul Kemp Bio 102 Field trip images You may have seen only a handful

4. Determinations of community Physical Stress Organisms interaction

5. Intertidal and coastal communities Rocky intertidal Sandy beaches Estuaries Salt marshes Mangroves Lagoons

6. Characteristics Physical –Submersion/Exposure –Waves –Temperature Extremes Biological –Space –Competition –Predation Chemical –Salinity changes –Pollution, Nutrients, Runoffs

8. Splash zone

9. Acorn barnacles

10. Periwinkle: Littorina

11. Green anemone: Anthopleura

12. Upper intertidal

13. Black turban snail:Tegula

14. Hermit crab

15. Balanus barnacle

16. Sea Lettuce

17. Coralline algae

18. Owl limpet (lottia) (AG Collins UCSD)

19. Coralline algae

20. Sponge weed

21. Stripe shore crabs: Pachycrapsus

22. Cling fish

23. Mid intertidal

24. Sargassum algae

25. Rockweed: brown algae Pelvetia

26. Fucus: brown algae

27. Sea hare: Aplysia

28. Brittle star

29. Goose neck barnacle : Pollicipes

30. California mussels: Mytilus

31. Lower intertidal

32. Surf grass

33. purple urchin: Strongylocentrotus

34. Rainbow seastar

35. Knobby seastar

36. Ochre seastar : Pisaster

37. Sea cucumber: Parastichopus

38. Giant keyhole limpet: Megathura

39. chiton

40. Wavy top snail

41. Spiny lobster: Panulirus

42. octopus

43. Wooly sculpin : Clinocottus

44. Giant Bladder kelp

45. Feather boa kelp