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Improving Lumpfish Grow-out Production: Optimizing Feed Strategies

Funding level:  $199,826

Project start date: 1 May 2022

Project duration:  24 Months

Project Coordinator: Elizabeth Fairchild, University of New Hampshire

Participants:  H-Michael Habte-Tsion, Matt Hawyard, Michael Pietrak


Project Summary:

The main objective will be achieved by the following steps, focusing on grow out of small (5g) juvenile lumpfish to 25 g, the size deployed as cleanerfish in salmonid net pens:

1) Determining optimal daily feeding rations (amount of food per day) for juvenile lumpfish relative to two temperatures applicable to the New England industry by measuring fish growth, stress, and aggression.

2) Comparing regular and satiation feeding strategies to obtain controlled and maximum growth rates in juvenile lumpfish to minimize within-tank fish size variation, stress, and aggression.

3) Evaluating the effects of feeding rates (# feedings per day) of lumpfish using automated feeding methods targeting controlled and maximum growth rates to minimize within-tank fish size variation, stress, and aggression.

4) Conveying research findings to stakeholders by updating lumpfish husbandry guides and standard operating procedures with feeding strategies information, holding training and stakeholder workshops, working directly with Cooke Aquaculture in ME and the steelhead trout farm in NH, communicating with the international lumpfish network and the US Lumpfish Consortium, giving presentations at scientific meetings, and publishing

extension and NRAC fact sheets, peer-reviewed manuscripts, and project updates.


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