1. Influence of thermal prehistory on endosulfan susceptibility of Oziotelphusa senex senex, a freshwater crab

   • D. C. Reddy
   • V. Kalarani
   • Ronald W. Davies

   OriginalPaper Pages: 1 - 6

2. Effect of DDT and MCPA (4-chloro-2-methylphenoxyacetic acid) on reproduction of the pond snail, Lymnaea stagnalis L.

   • Per Woin
   • Christer Brönmark

   OriginalPaper Pages: 7 - 13

3. Acute toxicity of several pesticides to rotifer (Brachionus calyciflorus)

   • A. Fernández-Casalderry
   • M. D. Ferrando
   • E. Andreu-Moliner

   OriginalPaper Pages: 14 - 17

4. Regulation of AChE system of freshwater fish, Cyprinus carpio, under fenvalerate toxicity

   • P. Malla Reddy
   • G. Harold Philip
   • Md. Bashamohideen

   OriginalPaper Pages: 18 - 22

5. Impact of γ-BHC on lipid class levels and their modulation by reproductive hormones in the freshwater catfish, Heteropneustes fossilis

   • P. B. Singh
   • T. P. Singh

   OriginalPaper Pages: 23 - 30

6. Seasonal variation of heavy metals in oysters from Darwin Harbor, Northern Territory, Australia

   • Naseem Peerzada
   • Edith Kozlik

   OriginalPaper Pages: 31 - 36

7. Elevated levels of organotins in Lake Geneva: Bivalves as sentinel organism

   • K. Becker
   • L. Merlini
   • J. Tarradellas

   OriginalPaper Pages: 37 - 44

8. Nickel effects on phosphate uptake, alkaline phosphatase, and ATPase of a cyanobacterium

   • R. K. Asthana
   • S. P. Singh
   • R. K. Singh

   OriginalPaper Pages: 45 - 54

9. Trace metals in limpets (Patella sp) from the coast of Santa Cruz de Tenerife (Canary Islands)

   • C. Diaz
   • L. Galindo
   • X. Rius

   OriginalPaper Pages: 55 - 62

10. Potential impact of watercress farm discharges on the freshwater amphipod, Gammarus pulex L.

    • Brian Roddie
    • Tim Kedwards
    • Mark Crane

    OriginalPaper Pages: 63 - 69

11. Growth retardation and elemental differences in juvenile Armadillidium vulgare latreille exposed to lead nitrate

    • M. Tomita
    • R. Heisey
    • G. M. Vernon

    OriginalPaper Pages: 70 - 76

12. Does methyl isocyanate interaction with normal hemoglobin alter its structure and function?

    • K. Jeevaratnam
    • C. S. Vaidyanathan

    OriginalPaper Pages: 77 - 82

13. Influence of dietary nitrate on nitrite level of human saliva

    • M. Ipek Cingi
    • Cemal Cingi
    • Emre Cingi

    OriginalPaper Pages: 83 - 88

14. Lipid peroxidation and activities of antioxygenic enzymes in vitro in mercuric chloride treated human erythrocytes

    • Human Erythrocytes
    • A. K. Bansal
    • R. Bhardwaj

    OriginalPaper Pages: 89 - 94

15. Accumulation and depletion of polychlorinated biphenyl (PCB) congeners in the housefly (Musca domestica, L.)

    • Larry G. Hansen
    • Eva Storr-Hansen

    OriginalPaper Pages: 95 - 100

16. Polychlorinated biphenyl (PCB) congener effects on the longevity of the housefly

    • Waheeda M. Tehseen
    • Larry G. Hansen
    • David J. Schaeffer

    OriginalPaper Pages: 101 - 107

17. Anti-cholinesterase action of a new organophosphorus ester, diethylphosphoric ester of the dicyclopropyloketoxime, on wistar rats

    • K. Machera
    • E. Kostakis

    OriginalPaper Pages: 108 - 114

18. Effect of Di(2-ethylhexyl)phthalate administration on rat sperm count and on sperm metabolic enzymes

    • Abrar Siddiqui
    • Satya P. Srivastava

    OriginalPaper Pages: 115 - 119

19. Antiperoxidative mechanisms offered by selenium against liver injury caused by cadmium and mercury in rat

    • S. V. S. Rana
    • P. R. Boora

    OriginalPaper Pages: 120 - 124

20. Estrogenic effects of aldrin and quinalphos in rats

    • S. Chatterjee
    • A. Ray
    • C. Deb

    OriginalPaper Pages: 125 - 130

21. Dimethylarsenic acid induces tetraploids in Chinese hamster cells

    • Ginji Endo
    • Koichi Kuroda
    • Shun'ichi Horiguchi

    OriginalPaper Pages: 131 - 137

22. Phytotoxicity of methyl parathion with special reference to photosynthesis in wheat seedlings

    • P. Moorthy
    • T. N. Gopinandhan
    • P. R. Anbudurai

    OriginalPaper Pages: 138 - 143

23. Atrazine soil extraction techniques for enzyme immunoassay microtiter plate analysis

    • G. K. Stearman
    • V. D. Adams

    OriginalPaper Pages: 144 - 151

24. Formation of toxic PCB congeners and PCB-solvent adducts in a sunlight irradiated cyclohexane solution of Aroclor 1254

    • François Lépine
    • Sylvain Milot
    • Nancy Vincent

    OriginalPaper Pages: 152 - 156

25. Trihalomethane in drinking water supplies and reused water

    • Mohamed I. Badawy

    OriginalPaper Pages: 157 - 162

26. HCH, endosulfan, and fluvalinate residue behavior in pigeonpea (Cajanus cajan L. Millsp)

    • Irani Mukherjee
    • Madhuban Gopal
    • N. T. Yaduraju

    OriginalPaper Pages: 163 - 170