Orkney Shellfish Hatchery Orkney Shellfish Hatchery has reported its broodstock oysters are feeding well. Photo: Orkney Shellfish Hatchery

Scotland’s Orkney Shellfish Hatchery plans to produce native flat oysters on land, as it completes the first translocation of native flat oyster broodstock from its offsite quarantine area, to its hatchery.

Part of the Cadman Capital Group’s Aquaculture Division, the multispecies shellfish hatchery is located at Lamb Holm and designed to provide premium seafood products including oyster spat, European lobster, microalgae and nutritional solutions to the aquaculture industry.

Dr Nik Sachlikidis, managing director of the Cadman Capital Group’s Aquaculture Division, commented: “The operations team is busy making the switch from construction into production, and we are working hard to achieve our first spat production of native oysters. The arrival of our first native oyster broodstock is an important milestone and has the whole Group excited, it also opens the door to the culture of other target species, such as lobsters, later this year.”

The hatchery’s broodstock oysters are feeding well, clearing 80% of their feeds overnight and indicating that they have settled into their new system. The broodstock oysters will now be fed a mixed diet of live algae harvested from the two large photo-bioreactors at the hatchery.

Biosecurity is key and Orkney Shellfish Hatchery implements strict movement protocols within the hatchery and provides specialist equipment for its team. Additionally, broodstock wastewater is treated with a three-step process of micro-filtration followed by ultraviolet filtration and chlorination/neutralisation to kill potential pathogens such as viruses and bacteria.

A secondary wastewater filtration system, designed to treat all of the hatchery’s wastewater for potential pathogens before discharge, is being built for installation in the coming months.

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