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
- Pentagon plane figure or solid figure
- An operation that maps an original figure called the
- 4 figure and 6 figure grid references
- Rigid transformation review
- Poesia al contrario
- Ponavljanje rijeci na pocetku stihova
- človeška figura v gibanju
- Chapter 13 respiratory system figure 13-4
- I too sing america figurative language
- How many planes appear in the figure?
- Instruksi alat tes ist
- Find the area of each figure
- Simile alliteration metaphor personification
- Rime alternate
- How many sides does a polygon
- Whats an oxymoron
- Volume of prisms and cylinders quiz part 1
- Trapezium volume formula
- Figure out the words using the clues provided
- Sound device of alliteration
- Figure de rey cotation
- Figure 14-2 cranial nerves labeled
- What are sound devices in poetry
- Il cinque maggio analisi
- Figure 6-4 the skeleton axial and appendicular divisions
- Métonymie exemple
- Find the volume of the composite figure.
- 9-5 symmetry answers
- Figure 9-1
- What does figure 12-2 show
- Which set does the figure belong to?
- 34 23 34 figure
- Art labeling activity figure 23.5
- Fringing reef
- Grid references
- Fiber texture pole figure
- A figure skater glides along a circular path
- Figure retoriche se la mia vita da l'aspro tormento
- Parallel lines cut by a transversal vocab practice
- Translate
- Une métonymie
- Father figure archetype examples