Acronym NA
Category
Aquaculture
Title Knowledge mapping: Production of large salmon smolt 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 Trine Ytrestøyl Coordinator email trine.ytrestøyl@nofima.no
Coordinator institution
NOFIMA - Norwegian Institute of Food, Fisheries and Aquaculture Research (Norway)
Institutions involved
NA - Avrik spf (Faroe Islands) ,
NA - BDO AS
(Norway) ,
NA - Fiskaaling P/F (Faroe Islands) ,
NORCE - Norwegian Research Centre (Norway) ,
UiT - The Arctic University of Norway (Norway) ,
UiB - University of Bergen (Norway) ,
NA - Åkerblå AS (Norway) ,
Start year 2021 End year 2022 Funding (€) € 509,931 Website https://www.fhf.no/prosjekter/prosjektbasen/901701/ Summary The production of hatchery salmon is in a phase where major changes are taking place. The industry wants to keep the salmon in closed facilities in order to reduce the time in traditional open facilities at sea with the aim of avoiding problems with salmon lice and disease. It is now common to produce a hatchery fish of 200–300 grams, and there is interest in further displacing stocking in sea cages. Several different production regimes for large hatchery fish have begun to establish themselves. While it used to be common to give the fish a winter signal to start smoltification, it is now more common to use continuous light throughout the hatchery phase. Some use brackish water or salt feed before release into the sea, while others only use fresh water. There are indications of variable performance after seawater transfer of large smolt, but the extent of the problem and the causes have not been mapped. If it is to be profitable to release large smolt in the sea, the problems with unpredictable and poor growth in the sea must be solved, and it is therefore important to obtain comprehensive documentation on performance in the sea for salmon produced with different protocols and released at different sizes. One challenge is to link information on production protocols in the hatchery phase with data on performance after stocking. The environment the fish encounters after release also varies with season and region, and exposure to pathogens and lice infestations will also be different. The reasons for reduced growth after postponement are likely to be complex, and it requires robust analysis tools for heterogeneous data sets to identify causal relationships. Access to data from commercial productions is a prerequisite for being able to identify factors that affect performance at sea and give recommendations on best practice when producing and stocking large hatchery fish. There is a lot of experience-based knowledge among industry players, which is important to include in such an analysis through interviews and dialogue-based gatherings with industry players in order to obtain their experiences with stocking large smolt.
Keywords
Open sea aquaculture;
Fish health;
Cage aquaculture;
Salmon;
Production;
Protocol;
Fish;
Land-based aquaculture;
Animal welfare;
Marine Region
76
Not associated to marine areas
0
Marine Region Map
