Table of Contents
Symbiotic
Relationships in Coral Reefs
Symbiosis
Types of Symbiosis
Obligate Versus
Facultative Relationships
Symbioses Involving
Corals
Mutualism
zooxanthellae and
corals
coral guard crabs
and pocilloporid corals
Christmas tree worms
and Porites corals
Commensalism
coral shrimps and
corals
gall crabs and
pocilloporid corals
petroglyph shrimp
and Porites lobata
Parasitism
Epitomium snails
and mushroom corals
parasitic flatworms
and rice coral
parasitic
nudibranchs
coral
“zits” on Porites compressa
bacterial diseases
on corals
Symbioses Involving
Other Reef Organisms
Mutualism
anemonefish and sea
anemones
goby shrimp and the
Hawaiian shrimp goby
cleaner wrasse
cleaning stations
banded coral shrimp
scarlet cleaner
shrimp
sea cucumber crab
and sea cucumbers
pompom crabs and sea
anemones
anemone hermit crab
and sea anemones
Commensalism
squat anemone shrimp
and sea anemones
crabs and sea
anemones
sea star shrimp and
sea stars
urchin shrimp and
sea urchins
shrimpfish & sea
urchins
Coral Wars
Competing Corals
Mechanisms of
Competitive Interactions
direct tentacular
killing
direct tentacular
killing
nematocyst
mesenterial filament
extrusion
mesenterial filament
from Fungia scutaria
noxious mucus
secretions
overgrowth
(“bulldozing”)
overshading
overshading
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