Greens wel­come Tas­ma­nia’s low­im­pact hatch­eries

Fish Farmer - - World News -

THE Tas­ma­nian Greens have wel­comed moves by the aqua­cul­ture in­dus­try to­wards a more en­vi­ron­men­tally friendly fish hatch­ery sys­tem.

Pe­tuna Aqua­cul­ture has opened a new $10 mil­lion re­cir­cu­la­tion hatch­ery in Cressy in the state’s north that will pro­duce 3.5 mil­lion fish per year.

The sys­tem will re­use nearly all of its wa­ter and the com­pany plans to phase out the use of tra­di­tional flowthroug­h ponds, which have raised en­vi­ron­men­tal con­cerns about fish waste en­ter­ing nearby wa­ter­ways.

Pe­tuna CEO Dr Mark Porter told ABC News the new sys­tem was more ef­fi­cient: ‘It uses less than five per cent of the wa­ter that a tra­di­tional [flow-through] sys­tem would.

‘We’re us­ing less than 200 litres per minute in the sys­tem and that’s roughly equiv­a­lent to a bath tap run­ning 24 hours a day.

‘Be­cause it’s com­plete en­vi­ron­men­tal con­trol, through tem­per­a­ture, photo pe­riod and salin­ity - it gives us the op­por­tu­nity to put the very best fish to sea ev­ery time.’

The fa­cil­ity will grow salmon and trout des­tined for the com­pany’s ocean leases near Satel­lite Is­land in the south-east and Mac­quarie Har­bour off the west coast. The fa­cil­ity also comes with 26 new jobs.

As Tas­ma­nia’s aqua­cul­ture in­dus­try chases its goal to pro­duce $1 bil­lion worth of fish a year by 2030, the Tas­ma­nian Greens said adopt­ing the re­cir­cu­la­tion sys­tem was crit­i­cal.

Huon Aqua­cul­ture and Tas­sal have both in­stalled sim­i­lar hatch­eries. The En­vi­ron­men­tal Pro­tec­tion Agency and is­land fish­eries ser­vice are cur­rently re­view­ing the per­for­mance of hatch­eries to de­cide if they should be reg­u­lated. The re­view is ex­pected to be pub­lished soon.

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