Aquaculture Harvest and Transport Concept; Feasibility
Gary F.; Swanson, Kurt and Gace, Langley; Ocean Spar Technologies,
December 31, 1996
National Marine Fisheries Service, Northwest Regional
Office, 7600 Sand Point Way, NE, Seattle, WA 98115.
PHONE: (206) 526-6115
To reduce the
operating costs of sea farming offshore, a means to quickly
and efficiently crowd fish in a sea cage for harvest or
transport was investigated. Additionally, transporting
these same fish over longer distances of exposed water
without undo stress, risk or operational hazard was investigated.
A new sea cage design called Sea Station (TM), satisfied
these requirements. By simply inverting the taut net,
fish were crowded to an opening in the side of the cage
and exited into a harvest pen. The Sea Station can safely
be towed at a speed of 51 cm./sec. without changing shape
or volume enclosed. Fish behavior was observed and recorded
for all operations and fish stress levels during the harvest
appeared to be very low.