ornamental fish dr. craig kasper hcc brandon tampa
TRANSCRIPT
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Ornamental FishOrnamental Fish
Dr. Craig KasperDr. Craig KasperHCC BrandonHCC Brandon
Tampa
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So far...it’s been all about the food!So far...it’s been all about the food!
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• Aquaculture has been (and may always be) Aquaculture has been (and may always be) about feeding people. about feeding people.
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““But Dr. K....But Dr. K....
What else is there??”What else is there??”
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““Feel good” fish!Feel good” fish!
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• First...lets revisit food fish aquaculture.First...lets revisit food fish aquaculture.
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(Tlusty 2005)(Tlusty 2005)
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IntroductionIntroduction
♦ Aquarium trade a rapidly growing sector of aquaculture.Aquarium trade a rapidly growing sector of aquaculture.
♦ Approximately $15 billion industry (Bartely 2000).Approximately $15 billion industry (Bartely 2000).
♦ High High demanddemand drives industry ($$$). drives industry ($$$).
♦ Several pros and cons concerning this industry.Several pros and cons concerning this industry.
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Making fish makes money!Making fish makes money!
Source: 1998 Census of Aquaculture, USDA-NASS
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Ornamental FishOrnamental Fish
• Influence of capture fisheries still applies.Influence of capture fisheries still applies.
• As restrictions on animal collection As restrictions on animal collection
intensify, culture of ornamental fish intensify, culture of ornamental fish
(OF) will assume a larger roll.(OF) will assume a larger roll.
• Currently, 90% of aquarium freshwaterCurrently, 90% of aquarium freshwater
fish cultured. (Reverse for marine fish—major fish cultured. (Reverse for marine fish—major issue!)issue!)
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Ornamental FishOrnamental Fish
• Production of OF is a global industry with global Production of OF is a global industry with global impacts (globalization = bad news?)impacts (globalization = bad news?)
• Has accounted for 40-60% of total exports in Has accounted for 40-60% of total exports in Singapore, Brazil, Phillipines (Tay, 1977; Chao Singapore, Brazil, Phillipines (Tay, 1977; Chao 1997; Dowd and Tlusty 2000; Baquero).1997; Dowd and Tlusty 2000; Baquero).
• However, this has all been at the EXPENSE of However, this has all been at the EXPENSE of the capture industry!the capture industry!
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Ornamental FishOrnamental Fish
• Production of OF doubled between 1985-1997. Production of OF doubled between 1985-1997. • In U.S., OF production is ranked fourth behind catfish, In U.S., OF production is ranked fourth behind catfish,
trout, and salmon; 7% of total aquacultural production trout, and salmon; 7% of total aquacultural production (JSA, 1999). (JSA, 1999).
• Florida produces over Florida produces over 800800 varieties of freshwater varieties of freshwater ornamental fish through captive breeding accounting for ornamental fish through captive breeding accounting for nearly 80% of total U.S. value (FASS 1999).nearly 80% of total U.S. value (FASS 1999).
• U.S. demand accounts for ~60% of total industry!U.S. demand accounts for ~60% of total industry!
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Ornamental FishOrnamental Fish
• Lucrative industry (average value $35-60/lb.; marine Lucrative industry (average value $35-60/lb.; marine even higher at $400-600/lb.)even higher at $400-600/lb.)
• Captive breedingCaptive breeding of marine fish accounts for much of marine fish accounts for much less (~13% of marine fish traded are cultured, 3% less (~13% of marine fish traded are cultured, 3% commercially feasible (Dawes 1998; Schiemer 2001).commercially feasible (Dawes 1998; Schiemer 2001).
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Ornamental FishOrnamental Fish• GreedGreed has led to habitat destruction. has led to habitat destruction.
- Mangrove destruction, reefs, illegal collection- Mangrove destruction, reefs, illegal collection
- Conservation groups, government influence.- Conservation groups, government influence.
- Clearly another black-eye for aquaculture!- Clearly another black-eye for aquaculture!
• How do we combat this?How do we combat this?- Limitations on collection. - Limitations on collection.
- Limit number of fish (Bahamian 50 fish/permited - Limit number of fish (Bahamian 50 fish/permited species).species).
- Limit number/size of speices (FL restrictions on 49 spp.)- Limit number/size of speices (FL restrictions on 49 spp.)
- More reliance on aquaculture (HBOI 2000)- More reliance on aquaculture (HBOI 2000)
- Artificial propigation (“just borrow some”)- Artificial propigation (“just borrow some”)
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Culture of Ornamental FishCulture of Ornamental Fish
• Variety of culture methodsVariety of culture methods- Closed systems (tanks, ponds)- Closed systems (tanks, ponds)
- Florida- 0.1 acre sandy loam or coral bedrock (- Florida- 0.1 acre sandy loam or coral bedrock (
• Semi-intesive densitiesSemi-intesive densities- tiger barb fry (pond) = 10k/m- tiger barb fry (pond) = 10k/m33
- clown fish (tanks) = 700-3800/m- clown fish (tanks) = 700-3800/m33
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(Tlusty 2005)(Tlusty 2005)
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Dr. Craig S. KasperHCC [email protected]