s callop a quaculture by sarina winter. s pecies c ultivated patinopecten yessoensis (china, japan)...
Post on 01-Jan-2016
214 Views
Preview:
TRANSCRIPT
SPECIES CULTIVATED
Patinopecten yessoensis (China, Japan)
Placopecten magellanicus (eastern USA)
Pecten maximus (United Kingdom, France, Spain, Norway)
Agropecten irradians (China)
MARKET VALUE
$15-20 per lb Short shelf life of live scallops = only
available close to cultivation sites Frozen or canned marketed
Global aquaculture production of Yesso scallop
LIFE CYCLE
Spat collected from ocean Mesh bags filled with material (ex soft
netlon) are tied to rope in ocean Moved to pearl bag until 3 cm (high
mortality if moved when smaller)
Broodstock Spawning induced by varying water
temperature, increasing water circulation, or by an injection of serotonin.
Post-settlement spat may be further grown in nursery tanks
Then moved to pearl nets
FEEDING
Scallops are filter feeders Algae with high protein Phytoplankton (Chaetoceros neogracile,
Isochrysis galbana)
CONDITIONS
Depth: 4-10 m Salinity: 32-34‰ Temperature 4-8 °C (39-46.4 °F) Life span is 10-12 years (Harvested typically at
2-3 years)
FARMING PROS
Scallops don’t need to have food supplied to them
They clean the water as they filter feed There aren’t any diseases or parasites
associated with scallops Many of the nets are collapsible and easy to
store
top related