aquaculture of seahorses
DESCRIPTION
Aquaculture of Seahorses. Ashley Buhl. http://www.youtube.com/watch?v=7Lj0CO79jR8. Taxonomy. Family: Syngnathidae Hippocampus kuda H. abdominalis H . ingens H. barbouri H. comes H. breviceps H. reidi H. erectus. Economic Importance. under threat worldwide - PowerPoint PPT PresentationTRANSCRIPT
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Aquaculture of SeahorsesAshley Buhl
http://www.youtube.com/watch?v=7Lj0CO79jR8
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TaxonomyFamily:
SyngnathidaeHippocampus kuda H. abdominalisH. ingensH. barbouriH. comesH. brevicepsH. reidiH. erectus
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Economic Importance under threat worldwide traditional Chinese medicine largest threat cures for skin ailments, high cholesterol levels, heart disease, lymph node disorder souvenirs
Market Locations
Market Price
largest markets: North American, Europe, Japan, Taiwan Province of China
$100-$300/kg
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Life Cycle/Larval Stageseggs: diameter: 1.2-
1.5 mmgestation: 10-20
dayslength at birth: 8-9
mmlarva development
stops one week before release from pouch
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Reproduction in Captivitysexual maturity at
14 weeksspawn 5-8
times/year195-626 eggs/broodfemales transfer
eggs to male pouches
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Production Methods UsedHatchery: broodstock
are obtained by 40 cm nets, kept in cages (2 x 2 x 4 m), located in calm sea in a bay or in indoor tanks
Nursery: one day after spawning, the fry are transferred to tank with biofilter, combined with UV and ozone treatment
Grow out: after 40 days, transferred to commercial size in larger indoor tanks (2-4 m3) or outdoor cages
Initially the stocking rate is 500/m3 but is decreased as they grow to 200/m3
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Feedingfed from birth to 40
days old with copepods
feeding with enriched Artemia achieves >80% survival
growout: weaned to frozen feed twice per day
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Water Chemistrysalinity: 30-35 ppmDO: 4-5 ppmpH: 8-8.3NH3, NO2: 0NO3: <20 ppmtemperature: 20-
28oCcurrent flow, tall
tank
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Advantageshigh market value,
low production costquick growth, high
fecundity, fast gestation
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Disadvantagessusceptible to
diseasemust maintain
pristine watereasily stressed=no
productivity