By John Vernberg
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Extra resources for Biological Monitoring of Marine Pollutants
Eaton, J. G. 1970. Chronic malathion toxicity to the bluegill (Lepomis macrochirus Rafinesque). Water Res. 4: 673-684. Farr, J. A. 1977. Impairment of antipredator behavior in Palaemonetes pugio by exposure to sublethal doses of parathion. Trans. Amer. Fish Soc. 106: 287-290. Hansen, D. , and P. R. Parrish. 1977. Suitability of sheepshead minnows (Cyprinodon variegatus) for life-cycle toxicity tests. Aquatic Toxicology and Hazard Evaluation, ASTM STP 634, F. L. Mayer and J. I. Hamelick, (Eds,), Amer.
75 ppm. Unlike these trichlorophenols, the tetrachlorophenols (2,3,4,5-tetrachlorophenol and 2 , 3 , 4 , 6 tetrachlorophenol) and pentachlorophenol were able to inhibit limb regeneration in a dose-dependent manner. At the concentrations tested, these chlorophenols did not alter the duration of the intermolt and premolt stages of the intermolt cycle of the grass shrimp. Κ. R A N G A R A O et al. 5 Concentration 0 5 1 2 0 IM1 1 5 ppm FIGURE 1. Effects of trichlorophenols (TCP), tetrachlorophenols (TeCP), and Pentachlorophenol (PCP) on regeneration of the left fifth pereiopod in the grass shrimp, Palaemonetes pugio.
05) was indicated when pooled measurements of laboratory stock were compared to pooled measurements of feral mysids. With two exceptions, MSS of the various laboratory and feral age groups were not significantly different from each other. 05). EFFECTS OF T W O O R G A N O P H O S P H A T E PESTICIDES 29 TABLE II. Comparison of the Maximum Sustained Speed (MSS) in cm/sec of laboratory-reared and feral stocks of Mysidopsis bahia as determined in a stamina tunnel. 05). 001) between treatments. Mean velocities sustained were inversely related to the concentration of phorate (Figure 2 ) .
Biological Monitoring of Marine Pollutants by John Vernberg