Modelling seasonal and geographical n-3 polyunsaturated fatty acid contents in marine fish from the Northeast Atlantic Ocean

This study demonstrates that consideration of nutrient contents, such as n-3 PUFAs, when organization and structuring fishery approaches may improve overall nutritional yield. Based on total annual Norwegian fish landings and seasonal variation in n-3 PUFA contents, n-3 PUFAs yield could theoretically be increased from 13.79 kilo ton per year from the current fishing tactics, to 15.54 if the pelagic species were only caught during the time of their seasonal n-3 PUFA peaks. One portion of fatty fish harvested during winter/spring may not meet the weekly intake reference nutritional guidelines for n-3 PUFAs. Marine n-3 PUFAs concentrations also varied geographically and decreased southwards, with the lowest values in Skagerrak. This study can serve as a model to understand patterns of reproductive cycles and geographical distribution of n-3 PUFAs in fatty fish from the NEAO and the novel approach may be useful to support sustainable, seasonal fishing programmes for optimization of n-3 PUFAs yields.PMID:38685293 | DOI:10.1016/j.envres.2024.119021

Source: Environmental Research - April 30, 2024 Category: Environmental Health Authors: Quang Tri Ho Lisbeth Dahl Kjell Nedreaas Atabak M Azad Michael S Bank Florian Berg Martin Wiech Sylvia Frantzen Monica Sanden Henning Wehde Livar Fr øyland Amund Maage Lise Madsen Source Type: research