Acronym NA
Category
Aquaculture
Title Skeletal deformities and cardiac growth dynamics in underyearling Atlantic salmon smolts (out-of-season, 0+ smolts) 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 Grete Bæverfjord Coordinator email grete.baverfjord@nofima.no
Coordinator institution
NOFIMA - Norwegian Institute of Food, Fisheries and Aquaculture Research (Norway)
Institutions involved
NA
Start year 2005 End year 2007 Funding (€) € 210,000 Website https://www.fhf.no/prosjekter/prosjektbasen/552292/ Summary The proposal addresses the topic of production related problems identified as a priority in the strategic plan for "Havbruk" published by the Norwegian Research Council. Deformities in fish are a recurrent problem in aquaculture, and the industry is faced with loss of money as well as a bad reputation due to these problems. Field data indicate that fish transferred to sea as under yearlings are more susceptible to vertebral deformities than yearlings, and that cardiac development may be inferior in these fish. The project builds on recent advances in research on the relation between intensive fish farming procedures and causal factors for bone deformities in Atlantic salmon. The project aims to include basic studies on growth dynamics for skeletal and cardiac structures in relation to rearing methods for underyearling smolts, as well as applied studies of direct relevance to the industry. The project will include two long term rearing experiments and will address temperature conditions, vaccination strategies, rearing density and water quality in freshwater. The effects of these factors, individually and in combination, will be examined by means of a range of methods, including growth dynamics and morphometric analyses, radiography and image analyses, microscopy and molecular studies. The fish will be monitored no less than six months after seawater transfer, and as close up to harvest size as practical conditions allow. Special focus will be on vertebral deformities and on cardiac size and form.
Objectives:
• To increase knowledge about how zero-year smolts can be produced so that the spine becomes normal, and the heart gets a normal shape and size.
• To increase the understanding of how fish are affected by intensive production methods.
• To contribute to improved rearing standards for underyearling salmon smolts, with special focus on how to obtain normal development of vertebral column and normal cardiac size and shape.
• To identify “optimal freshwater rearing temperatures in underyearling production” optimal temperature strategies during photomanipulation “the importance of water quality” specific effects on cardiac and bone development related to timing of vaccination.
Keywords
Disease;
Fish;
Salmon;
Fish health;
Marine Region
76
Not associated to marine areas
0
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