Crappie Black, Pomoxis nigromaculatus

Braun and Frank (1980) reported diazinon residues in three fish species collected from a creek in southern Ontario, Canada, contaminated from a point source discharge. Tissue residues for the three edible fish species were 18 ppb in the brown bullhead (Ictalurus nebulosus), 17 ppb in the black crappie (Pomoxis nigromaculatus), and 92 ppb in the gizzard shad (Dorosoma cepedianum). The maximum diazinon concentrations measured in the contaminated creek water for 1975-76 and 1976-77 were 140 ppb (5.75 ppb mean) and 26 ppb (1.02 ppb mean), respectively. 

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