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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

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aquaculture of seahorses

Aquaculture of Seahorses

Ashley Buhl

http://www.youtube.com/watch?v=7Lj0CO79jR8

taxonomy
Taxonomy
  • Family: Syngnathidae
  • Hippocampus kuda
  • H. abdominalis
  • H. ingens
  • H. barbouri
  • H. comes
  • H. breviceps
  • H. reidi
  • H. erectus
economic importance
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

  • largest markets: North American, Europe, Japan, Taiwan Province of China

Market Price

  • $100-$300/kg
life cycle larval stages
Life Cycle/Larval Stages
  • eggs: diameter: 1.2-1.5 mm
  • gestation: 10-20 days
  • length at birth: 8-9 mm
  • larva development stops one week before release from pouch
reproduction in captivity
Reproduction in Captivity
  • sexual maturity at 14 weeks
  • spawn 5-8 times/year
  • 195-626 eggs/brood
  • females transfer eggs to male pouches
production methods used
Production Methods Used
  • Hatchery: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
feeding
Feeding
  • fed from birth to 40 days old with copepods
  • feeding with enriched Artemia achieves >80% survival
  • growout: weaned to frozen feed twice per day
water chemistry
Water Chemistry
  • salinity: 30-35 ppm
  • DO: 4-5 ppm
  • pH: 8-8.3
  • NH3, NO2: 0
  • NO3: <20 ppm
  • temperature: 20-28oC
  • current flow, tall tank
advantages
Advantages
  • high market value, low production cost
  • quick growth, high fecundity, fast gestation
disadvantages
Disadvantages
  • susceptible to disease
  • must maintain pristine water
  • easily stressed=no productivity