Coral Reef Distribution
Global distribution of corals
within 30 degrees of the equator.
a reef surrounding a deep lagoon is called?
Atoll
polyps with 6 or multiples of 6 tentacles subclass
HEXAcorals
what is causing rate of calcification to decline?
rising atmospheric CO2
diversity is considered high using SDI when the number is closest to?
1
Biggest coral reef in the world.
Reef situated directly alongside land is called?
Fringing
phytoplankton that reside within coral giving it food and its colour.
zooxanthelle
growth of reefs is dependent on accretion being greater or lower than destructive processes
greater
what nursery ecosystems are important for coral reef fish to repopulate
mangroves and seagrasses
The optimum temperature for corals to survive in
20-30 degrees
Great Barrier Reef formed from sea level changes when?
20,000 years ago
skeleton that encases each individual coral polyp is called
corallite
how is habitat complexity measured
rugosity
Why are herbiviourous fish important for coral ecosystems
eat algae that grow on corals
Abiotic factors that influence corals
dissolved oxygen, light, temp, salinity, aragonite
name given to reef section that is a formidable barrier that absorbs and dissipates the energy of incoming waves and is the shallowest part of the reef
reef crest
stinging captuals that fire barbs
nematocysts
fish larvae that undergo metamorphosis become...
juveniles
natural systems crossing a biophysical threshold as a result of human induced stressors, dramatically altering ecosystem function and services is called
ecological tipping point
What is Aragonite made up of?
Calcium Carbonate
process of corals finding a home (4 steps)
dispersal, site selection, settlement, recruitment
Name of reef-building (hard) corals ORDER
Scleractinia
fish population size is determined by these 4
birth, death, emigration, immigration
when the return pathway to recovery differs from the original pathway of destruction is called