Why is water so clear? - ✅✅ void of nutrients
Reef g/C/m^2/yr - ✅✅ 1500-5000
Surrounding ocean g/C/m^2/yr - ✅✅ 15-50
Corals get rid of nutrients in system (t/f) - ✅✅ false
Healthy coral symbionts= - ✅✅ better calcium
Corals are easy to measure (t/f) - ✅✅ false
Brain corals grow faster that branching (t/f) - ✅✅ false
Older corals grow faster than younger (t/f) - ✅✅ false
Asexual repro= - ✅✅ budding
Sexual repro 2 types - ✅✅ eggs being retained in coral and broadcasting
What is broadcasting? - ✅✅ eggs released into water column
Oblong ciliated larva of corals? - ✅✅ planula
2 coral competitions - ✅✅ exploitative and interference
Indirect competition? - ✅✅ exploitative
Exploitative example - ✅✅ branching coral can grow over another
Direct competition? - ✅✅ interference
Interference competition example? - ✅✅ acontia
4 marine tropical communities - ✅✅ mangroves
Seagroves
, Soft bottoms
Coral reefs
Mangroves helps to? - ✅✅ secure area from erosion, huge nursery
Seagrass helps to? - ✅✅ filter water
Seagrass provides food for? - ✅✅ sea urchins
What supports coral? - ✅✅ dinoflagellates
What is coral made of? - ✅✅ calcium carbonate
Where is hard coral found? - ✅✅ tropical water
Phylum of coral? - ✅✅ Cnidaria
Classes (4) of Cnidaria - ✅✅ Scyphozoa
Hydrozoa
Vubozoa
Anthozoa
True Jellies - ✅✅ Scyphozoa
Hydras - ✅✅ Hydrozoa
What makes nematocysts? - ✅✅ cnidoblasts
Hard coral only in tropics (6) - ✅✅ warm water, not too deep, like salty, not
sediment, like waves, aerial exposure
Hard coral water temp preferred? - ✅✅ 23-25*C
Hard coral never less than temp - ✅✅ 18*C
Depth max for hard corals? - ✅✅ 50-70m
Most depth for hard corals? - ✅✅ 25m