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  • Title: Variation of toxaphene indicator compounds in fish from single fishing grounds: conclusions for sampling.
    Author: Karl H, Khandker S, Alder L.
    Journal: Chemosphere; 1999 Dec; 39(14):2497-506. PubMed ID: 10581699.
    Abstract:
    The levels of three toxaphene indicator compounds were determined in individual lots of herring, redfish, Greenland halibut and farmed salmon. Concentration levels of the three marine fish species were characterised by a right-skewed frequency distribution whereas residue concentrations in farmed salmon were normally distributed. The toxaphene concentrations in the edible part of redfish, herring and Greenland halibut were found to be positively correlated to the sizes and thus to age. As results show, for representative sampling of a landed catch, not more than 10 individual fishes from typical size classes of a lot are necessary for a pooled sample.
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