Recent Progress in the Study of “Die Ernährung der Wassertiere und der Stoffhaushalt der Gewässer”

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Abstract
SYNOPSIS. It is now possible to provide direct evidence for net removal of significant amounts of specific amino acids from naturally occurring dissolved organic material by a marine invertebrate. This demonstration serves to focus attention and invite reconsideration of the large body of less direct evidence supporting the general occurrence of this capacity among soft-bodied marine invertebrates.