Macaulay, Georgia
- Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
Sammanfattning
Waste feed remains a major issue in open sea-cage Atlantic salmon aquaculture. "Echofeeding" is an appetite-led feeding method that stops meals based on fish biomass detected by an echo sounder. The method reduced waste feed and upheld fish growth in a relatively vertically unstratified coastal farming environment. Here, we tested echofeeding at a commercially relevant scale over an 8-month period in a fjord environment with seasonal vertical temperature and salinity gradients. We compared fish behaviour and growth between echofed fish, fed at high intensity and near surface, and control fish, with feeding regulated by pellet detection without surface feeding restriction (conventional practice). Growth (SGR>1.81) and FCR (
Nyckelord
Aquaculture; Pellet; Salmo salar; Sea-cage; Temperature
Publicerad i
Aquacultural Engineering
2025, volym: 111, artikelnummer: 102565
Utgivare: ELSEVIER SCI LTD
SLU författare
UKÄ forskningsämne
Fisk- och akvakulturforskning
Publikationens identifierare
- DOI: https://doi.org/10.1016/j.aquaeng.2025.102565
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/142079