Transcript Aquaculture Presentation_WebsterK

Katie Webster
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Phylum Cnidaria
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Colonial growth
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Foundation species
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Commercial
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Conservation
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Research
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Sold as ornamental organisms for aquariums
Prices vary based upon coral species, color
pattern, and colony size
◦ More colorful is more expensive
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Corals are cultured and sold around the world
◦ US is main purchaser
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High shipping costs
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Zooxanthellae
symbiosis
Calcium carbonate
skeleton
Reef builders
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Flexible
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Lacy appearance
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Proteinaceous
skeletons
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Stony corals – Order Scleractinia
◦ Family Acroporidae -SPS
 Montipora spp.
◦ Family Dendrophylliidae - LPS
 Turbinaria peltata
 Dendrophyllia fistula
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Soft corals – Order Alcyonacea
◦ Family Alcyoniidae
 Sarcophyton spp.
 Sinularia spp.
Montipora spp.
Purple Montipora
capricornis
Supernatural Montipora
capricornis
Turbinaria peltata
Green Pagoda Coral
Dendrophyllia fistula
Red Sun Coral
Sarcophyton spp.
Green Toadstool
Leather
Long Polyping Leather
Sinularia spp.
Blue Devils Finger
Leather
Yellow Fiji Finger
Leather
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Budding
◦ Colonial growth
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Spawning
◦ Free swimming larvae
◦ Adult sessile polyps
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Fragmentation
◦ Colony physically broken
into separate sections
Asexual
◦ Hermaphroditic and
non-hermaphroditic
types
Sexual
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Asexual growth
“fragging”
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Development from
zygotes
◦ “spat stocking”
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Indoor tanks – Intensive
◦ RAS filtration system
◦ Zooxanthellae very sensitive
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Floating nurseries – Extensive to Semi-intensive
◦ Shallow water
◦ Reef building
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Tropical waters
◦ Bright light
◦ Temperature: 78°F to 84°F
◦ Salinity : 1.026 s.g.
◦ Calcium: 390 to 450 ppm
◦ pH: 7.9 to 8.3
◦ Alkalinity: 140 to 180 ppm
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Zooxanthellae provide energy
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Dissolved organic matter
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Plankton and small organisms
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Fast growing
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Minimum feeding
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Easy to aquaculture
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Conservation efforts
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Harmful to humans
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Expensive
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Predation and disease