Recirc in Action: How fish feed impacts anaerobic digestion in RAS

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EDITOR'S NOTE

"This week, our editorial team is working on our March/April print edition and I was reflecting on the busy spring season ahead. It got me thinking about workplace burnout and I wondered if you were interested in us exploring more about this subject."

Jean Ko Din, Editor

News

Danish trout farm, feed producer advance aquaculture R&D

An aquafeed producer and trout farm in Denmark are working to improve modern fish farming by integrating feed research and development with production.

Washington hatchery using drone to map water intake improvements

The drone is gathering information on topography and conditions to inform future culvert replacements and upgrades to the hatchery’s water intake.

Utah hatchery increases egg production with degasser

A recently renovated state hatchery in Utah is using a vacuum degasser that is supporting increased trout egg production.

North Carolina’s largest trout hatchery to close for rebuild

The Bobby N. Setzer State Fish Hatchery in North Carolina's Transylvania County produces the majority of trout for the state’s stocking program.

Features

Recirc in Action: Fish feed impacts on energy recovery through anaerobic digestion in RAS

A recent study at The Conservation Fund’s Freshwater Institute quantified how feed composition and digestibility dictate RAS waste characteristics, and highlighted the impacts on energy recovery potential.

Feed for Thought: One fish’s waste is a plant’s treasure

Magida Tabbara rounds up the latest research on aquaponics, a farming system that couples aquaculture with hydroponics, aiming to recycle nutrients among fish and plants.