Fish Pigure 31 shovs the declines of five tissues of reer fish from Belle. This figure includes the data shown by Welander (1957:Pig.2) in semi- log plot, for which his Table 1 gives data regarding numbers of specimens and plates. Values from the indi- cated numbers of plates were averaged for each point. In addition to Welander's data, Pigure 31 shows the levels for one plate of liver and two plates of muscle for small fish from a collection made on April 26, 1956. For each tissue an initial period of uptake of nearly two weeks was followed by a fairly regular decline ranging in slope from -1.2 for liver to -1.9 for skin (Table 1). Absolute levels were comparable to those of invertebrates. r a a “a Days afte Mey 0 “Ole aye efter Pig. 31 eo toy © ge

Select target paragraph3