Figure 14 15 Figure CO 14 Figure 14
- Slides: 41
Figure 14. 15
Figure CO 14
Figure 14. 1
Figure 14. 1
Gonyaulax (not in corals, red tide algae) Dinoflagellates (single-celled algae): • symbionts in corals (zooxanthellae) live inside the cells of corals • toxic algae blooms (red tides) • bioluminescence
Figure 14. 24
Gonyaulax (not in corals, red tide algae) Dinoflagellates in coral = “zooxanthellae”: • Theca (shell) not present in symbionts in coral • Transmitted in eggs of coral to offspring • Expelled during coral “bleaching” • Required by coral for food and growth of skeleton
Single polyp (solitary coral) mushroom coral Multiple polyps (colonial coral) Eg, boulder coral One corallite/polyp
Figure 14. 6 Brain coral (colonial coral) Many polyps in a single, interconnected large corallite (skeleton “cup”) Coral skeletons are made of calcium carbonate (Ca. CO 3) “limestone”
Single or colonial coral?
Lobophyllia hemprichii (each ring= one polyp)
Figure 14. 3 Polyps in a colony are interconnected (wave of contraction)
Figure 14. 6 Free-living = solitary
Figure 14. 18
Growth of a coral reef Planula larvae settles. Growth to adult form. Coral rubble accumulates Rubble cemented by red algae (coralline algae)
One of main sediment-forming organisms is a green algae Halimeda.
Coral reefs require a community of • Corals • Red Algae • Calcareous green algae Other animals that provide limestone or help bind sediments • = Key components of reef
Coral reefs require a community of • Corals • Red Algae • Calcareous green algae Other animals that provide limestone or help bind sediments Shells: foraminifera, snails, tubeworms, clams, sea urchins Binding or more shells: bryozoans, sponges, bacteria • = Key components of reef
Coccoliphorids: Single celled algae in open ocean Important primary producers Calcium carbonate skeletons
What do coral reefs need in order to grow?
Light (no deeper than 50 m) Warm but not too warm (> 20 o. C (68 F), < 30 o to 35 o. C (86 -95 F)
Figure 14. 11
Why is highest temperature that corals can tolerate higher than the average high where they live?
Threats to corals High temperatures (global warming) Nutrient runoff (sewage, fertilizer) Sedimentation Collection (aquaria, jewelry)
Red algae smothering coral in Hawaii (nutrients from sewage)
Dredging releases sediment
Coral and coral animals sold to collectors
How are coral reefs formed? 1) Fringing reefs 2) Barrier reefs 3) Atolls
Fringing reef
Fringing reef (Bismarck Archipelago, southwest Pacific)
Figure 14. 17 Barrier Reef (lagoon between reef and shore) ( Great Barrier Reef, Belize reef )
Figure 14. 22 a Atoll (Darwin)
Lagoon Back reef Fore reef
Figure 14. 23
Figure 14. 25 PP of coral zooxanthellae - coral/mucus feeders - predators
Figure 14. 26
Figure 14. 27 Warfare for space Chemical Stinging (sweeper tentacles) Digestive (mesenterial filaments)
Figure 14. 28
Figure 14. 30
- Abcye
- Pentagon plane figure or solid figure
- An operation that maps an original geometric figure
- 6 figure grid reference
- Figure 6-1 structure of a long bone
- Figure konstrukcije
- Figure 21
- Median of line plot
- Is a cylinder a polyhedron
- Chapter 5 the skeletal system figure 5-10
- La capra saba
- Figure direttamente congruenti
- Vertical
- Operations and scientific notation lesson 5
- Infundibulum female reproductive system
- Properties of polygons
- Motor figure
- Find the relative frequency
- How many lines of symmetry does the figure have?
- Look at figure 30-1
- The figure shows three electric charges labeled
- Chapter 7 the nervous system figure 7-2
- Mataphase 1
- Figure of male reproductive system
- Villikinine
- Animal figure
- Chevron figure
- A spinning figure skater pulls his arms in as he rotates
- Internal anatomy of the kidney
- Supplementary figures
- Figure 8 mig welding
- The grass seeds figure shows the electric field
- Draw figure
- The figure here shows a gaussian cube of face area a
- Property of isosceles triangle
- Mouth function in digestive system
- Momento centrifugo triangolo
- Cutter table library of congress
- Congruent and similar shapes worksheet
- Significant digits
- Wind yells while blowing figure of speech
- The word-skipping technique lets you figure out