Early Start for Bluefin Tuna Spawning Season
10 January 2012AUSTRALIA - Clean Seas Tuna Limited has reported early progress with its previously announced strategy of bringing forward spawning from the Company’s Southern Bluefin Tuna (SBT) broodstock.
The company is encouraged that the first element of the strategy has been achieved with
spawning commencing significantly earlier than last year’s spawn start at Clean Seas’
specialised hatchery at Arno Bay on the Spencer Gulf, South Australia.
The earlier start is with a regular number of small but viable spawns in the past month, allowing
the instigation of the all-important new season’s larval rearing trials at the hatchery.
The aim is to continue spawning the tuna for as long as possible to enable our team of experts
to further progress the Company’s understanding of tuna juvenile production.
As previously advised, the ultimate target strategy for the new spawn is to advance timing and
provide older, more resilient fingerlings for marine grow-out by the time ocean water
temperatures begin to drop in the Autumn.
In summary, the Clean Seas team is encouraged by the earlier spawning activity and awaits
expectantly the crucial next stages towards achieving further progress overall with its SBT
breeding programme.
The Company will provide investor updates on the current SBT spawning and larval rearing
season with the next key stages being the spawning build for production volume and then
transfer of fingerlings for controlled grow-out trials to either sea cages or holding tanks.
As previously reported, Clean Seas achieved a world “first” in March 2011 with the successful
transfer of 149 juvenile SBT into a sea cage from the Arno Bay breeding facility.
The SBT juveniles eventually succumbed to the cold winter ocean temperatures, which in turn
led to the Company’s strategy of bringing forward the current spawning season and targeting
the ocean transfer of the SBT fingerlings during warmer water temperatures.
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