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National Marine Sanctuaries

National Marine Sanctuaries. America’s Underwater Treasures. Habitat Characterization. What are the species you are looking for? What are the habitats and what do they look like? How do you estimate abundance?. Habitats. Rocky Reef : Any area with rocky boulders, granite, or pinnacles.

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National Marine Sanctuaries

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  1. National Marine Sanctuaries America’s Underwater Treasures

  2. Habitat Characterization What are the species you are looking for? What are the habitats and what do they look like? How do you estimate abundance?

  3. Habitats Rocky Reef : Any area with rocky boulders, granite, or pinnacles

  4. Habitats Soft Bottom: Any area that is lacking reef material, and consists of soft, sandy, or muddy substrate

  5. Species Identification • Characteristics • to look for: • Body Shape • Color • Behavior • Habitat

  6. Invertebrates Sea Cucumber (Parastichopus californicus)

  7. Invertebrates Box Crab (Lopholithodes foraminatus) • Slow moving • Usually seen over soft bottom habitat

  8. Fish Rockfish (Sebastes sp.) spiky dorsal spines Big eyes Big lips

  9. Fish Juvenile rockfish

  10. Fish Ratfish (Hydrolagus colliei) • “wing-like”fins • watch for shadows • on the bottom

  11. How to rate the abundance Single 1 Few 2-10 Many 10-500 Abundant 500 and more….

  12. Abundance Single 1 Many 10-100 Few 2-10 Abundant >500

  13. Lasers= 20 cm apart

  14. What is it?

  15. What is it?

  16. What is it?

  17. Characterizing habitat • Gain information about the ecosystem and its inhabitants • Monitoring • Tracking changes over time

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