CrowdMonitor
Monitoring and optimising the crowding of Atlantic salmon using emerging health and welfare indicators (CrowdMonitor)
Crowding has been identified as a key factor affecting the health and welfare of farmed Atlantic salmon during handling. The results from the CrowdMonitor project will help the industry monitor and optimize their crowding operations
Start
01. Jan 2020
End
30. Apr 2026
Funded by
FHF – Norwegian Seafood Research Fund
Cooperation
Institute of Marine Research (by Lars Helge Stien, Angelico Madaro, Jonatan Nilsson), Cermaq Norway AS (by Magnus Åsli, Karl F. Ottem, Tirril Slettjord, Vilde C. Alsos), Grieg Seafood AS (by Berit Seljestokken, Sigrun N. Johannessen)
Project Manager(s):
Objectives
The main objective of the CrowdMonitor project is to update our current state of the art knowledge on the crowding of Atlantic salmon by developing and evaluating updated Welfare Indicator toolboxes for crowding.
Sub-objectives:
- Conduct a detailed evaluation of the existing and widely used intensity scale for salmon crowding in tanks and net pens
- Test the utility of the intensity scale in tanks and net pens
- Develop new health and welfare indicator toolboxes for crowding in different farming systems (tanks/net pens) and develop new observational scoring schemes for both above- and below-water
- To evaluate the effect of crowding duration on the health and welfare of salmon post-smolts in tanks
Publications
Stien, L. H., Noble, C., Izquierdo-Gomez, D., Bui, S., Amble, S., & Lind, M. B. (2025). An underwater risk scale for monitoring the crowding intensities of Atlantic salmon in commercial net pens using Remotely Operated Vehicles (ROVs), v0. 1. Aquaculture Reports, 45, 103109.
Contact
Research areas
Farmed fish
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