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
Aquaculture of SeahorsesAshley Buhl
http://www.youtube.com/watch?v=7Lj0CO79jR8
TaxonomyFamily:
SyngnathidaeHippocampus kuda H. abdominalisH. ingensH. barbouriH. comesH. brevicepsH. reidiH. erectus
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
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
Reproduction in Captivitysexual maturity at
14 weeksspawn 5-8
times/year195-626 eggs/broodfemales transfer
eggs to male pouches
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
Feedingfed from birth to 40
days old with copepods
feeding with enriched Artemia achieves >80% survival
growout: weaned to frozen feed twice per day
Water Chemistrysalinity: 30-35 ppmDO: 4-5 ppmpH: 8-8.3NH3, NO2: 0NO3: <20 ppmtemperature: 20-
28oCcurrent flow, tall
tank
Advantageshigh market value,
low production costquick growth, high
fecundity, fast gestation
Disadvantagessusceptible to
diseasemust maintain
pristine watereasily stressed=no
productivity