The laboratory experiment supported the results from the field investigation by showing that livers from cod caught in April (postspawning) contained very low levels of 20:1( n −9) and 22:1( n −11) (the baseline group in the experiment), but after 6 weeks in captivity, the two groups of cod that during this period received a diet containing herring (caught in Øresund in early November) displayed a highly significant increase in 20:1( n −9) and 22:1( n −11) (Fig. 6 ).
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Marine ecosystem connectivity mediated by migrant-resident interactions and the concomitant cross-system flux of lipids.
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