Acronym Temp-Intens
Category
Aquaculture
Title Life cycle study of the critical input factors temperature and salinity Programme National Programme
Instrument (FP6)
Contact Type (FP7)
Strand (Interreg)
NA
Theme (FP7)
Activity Area (FP6)
Regional Area (Interreg)
Action (COST)
NA
Specific Programme (FP7)
NA
Funding source National Coordinator Åsa Maria Espmark Coordinator email asa.espmark@nofima.no
Coordinator institution
NOFIMA - Norwegian Institute of Food, Fisheries and Aquaculture Research (Norway)
Institutions involved
NA - Cermaq Norway AS (Norway) ,
NA - Grieg Seafood Finnmark AS (Norway) ,
NA - MOWI ASA (Norway) ,
NTNU - Norwegian University of Science and Technology (Norway) ,
UiT - The Arctic University of Norway (Norway) ,
UiB - University of Bergen (Norway) ,
Start year 2022 End year 2025 Funding (€) € 2,118,358 Website https://www.fhf.no/prosjekter/prosjektbasen/901770/ Summary A robust salmon when released at sea requires optimal conditions throughout the various development phases in freshwater. Today, a number of different production regimes are used by smolt producers, even within the same company. The production regimes are often developed with capacity, efficiency and economy in mind, driven by an increased need for reduced production time at sea. In addition, a study shows that the fish have the greatest risk of dying at sea in the first two months after release, and it is reported that the salmon's performance throughout the sea phase and quality at slaughter have deteriorated. In order to understand more what causes the challenges that the fish face in the sea phase, there is a need for life course studies where the connection between conditions in the hatchery phase is linked to later performance in the sea, right up to slaughter.
In Temp-Intens, we want to increase understanding of what temperature and salinity in early life stages mean for performance later in life. One also wants to use the access to good infrastructure to compare the performance of salmon that have been created in recycling technology (RAS) versus flow to increase the understanding of how RAS affects the salmon in the long term.
Main objective:
To come up with recommendations for the commercial production of salmon through optimization of the input factors temperature and salinity. The input factors must be tested under various farming conditions in the hatchery phase, and the fish must be followed all the way to slaughter to assess performance, health, welfare and product quality.
Sub-goals:
• To document whether fish farmed intensively using recycling technology (RAS) or flow-through technology (FT) perform differently.
• Assessing the intensity of production at water temperatures of 8, 12 and 14 ᵒC and whether different temperatures affect the robustness of salmon in the long term.
• Investigating whether the fish's performance depends on whether they are reared under stable conditions, with a constant low or high temperature, or whether variation in temperature promotes robustness.
• Investigating whether gradual adaptation to salinity before release into the sea makes the salmon better able to handle the transfer, as opposed to whether it goes directly from fresh to full-strength seawater.
• To calculate the economic profitability of intensive farming in the hatchery phase from hatchery to slaughter.
Keywords
Water quality;
Recirculating systems;
Salmon;
Land-based aquaculture;
Fish;
Fish health;
Animal welfare;
Marine Region
13
Northern North Sea (27.IVa)
41
Norwegian Sea (27.IIa)
2
Marine Region Map
