1. Seasonal and Spatial Distribution of Several Endocrine-Disrupting Compounds in the Douro River Estuary, Portugal

   • Cláudia Ribeiro
   • Maria Elizabeth Tiritan
   • Maria João Rocha

   OriginalPaper 27 March 2008 Pages: 1 - 11

   

2. Heavy Metals and Acidic Components in Total Deposited Matter in Šibenik and National Park Kornati, Croatia

   • Mirjana Čačković
   • Nataša Kalinić
   • Gordana Pehnec

   OriginalPaper 15 April 2008 Pages: 12 - 20

   

3. Nitrous Oxide Emissions from Wetland Rice–Duck Cultivation Systems in Southern China

   • Chengfang Li
   • Cougui Cao
   • Shahrear Ahmad

   OriginalPaper 22 April 2008 Pages: 21 - 29

   

4. Development of a Toxicity Identification Evaluation Protocol Using Chlorophyll-a Fluorescence in a Marine Microalga

   • D. Strom
   • P. J. Ralph
   • J. L. Stauber

   OriginalPaper 01 May 2008 Pages: 30 - 38

   

5. Responses of Planktonic Microorganisms from Tropical Reservoirs to Paraquat and Deltamethrin Exposure

   • Christophe Leboulanger
   • Marc Bouvy
   • Philippe Cecchi

   OriginalPaper 22 April 2008 Pages: 39 - 51

   

6. Aquatic Toxicity Assessment of the Additive 6-Methylcoumarine Using Four Experimental Systems

   • Á. Jos
   • G. Repetto
   • A. M. Cameán

   OriginalPaper 08 April 2008 Pages: 52 - 59

   

7. Antioxidant Enzymes and Heavy Metal Levels in Tissues of the Black Chocolate Clam Megapitaria squalida in Bahía de La Paz, Mexico

   • Nadiezhda Cantú-Medellín
   • Norma O. Olguín-Monroy
   • Tania Zenteno-Savín

   OriginalPaper 25 March 2008 Pages: 60 - 66

   

8. HCH and DDT Residues in Bivalves Anodonta woodiana from the Taihu Lake, China

   • Xuesen Bian
   • Hongbo Liu
   • Jian Yang

   OriginalPaper 09 May 2008 Pages: 67 - 76

   

9. Differential Toxicity to Cd, Pb, and Cu in Dragonfly Larvae (Insecta: Odonata)

   • V. D. Tollett
   • E. L. Benvenutti
   • T. M. Rice

   OriginalPaper 18 April 2008 Pages: 77 - 84

   

10. Lethal and Sublethal Toxicity of the Antifoulant Compound Irgarol 1051 to the Mud Snail Ilyanassa obsoleta

    • Meaghean C. Finnegan
    • Sherry Pittman
    • Marie E. DeLorenzo

    OriginalPaper 06 May 2008 Pages: 85 - 95

    

11. Biological Response Signature of Oil Brine Threats, Sediment Contaminants, and Crayfish Assemblages in an Indiana Watershed, USA

    • Thomas P. Simon
    • Charles C. Morris

    OriginalPaper 27 March 2008 Pages: 96 - 110

    

12. Estrogenic Effects of Selected Hydroxy Polychlorinated Biphenyl Congeners in Primary Culture of Atlantic Salmon (Salmo salar) Hepatocytes

    • Marte Braathen
    • Anne Skjetne Mortensen
    • Augustine Arukwe

    OriginalPaper 15 April 2008 Pages: 111 - 122

    

13. Relative Toxicity of Malathion to Trematode-Infected and Noninfected Rana palustris Tadpoles

    • Sarah A. Budischak
    • Lisa K. Belden
    • William A. Hopkins

    OriginalPaper 10 April 2008 Pages: 123 - 128

    

14. Species Differences in the Sensitivity of Avian Embryos to Methylmercury

    • Gary H. Heinz
    • David J. Hoffman
    • Carol A. Erwin

    OriginalPaper 18 April 2008 Pages: 129 - 138

    

15. Effects of Subchronic Coexposure to Arsenic and Endosulfan on the Erythrocytes of Broiler Chickens: A Biochemical Study

    • Manoj Aggarwal
    • Suresh Babu Naraharisetti
    • J. K. Malik

    OriginalPaper 29 April 2008 Pages: 139 - 148

    

16. Dietary Toxicity and Tissue Accumulation of Methylmercury in American Kestrels

    • Richard S. Bennett
    • John B. French Jr.
    • Romona Haebler

    OriginalPaper 17 April 2008 Pages: 149 - 156

    

17. Testing the Limits of Rodent Sperm Analysis: Azoospermia in an Otherwise Healthy Wild Rodent Population

    • Lawrence V. Tannenbaum
    • Brandolyn H. Thran
    • Keith J. Willams

    OriginalPaper 25 April 2008 Pages: 157 - 164

18. A Bayesian Approach to Probabilistic Risk Assessment in Municipal Playgrounds

    • I. Iribarren
    • E. Chacón
    • E. De Miguel

    OriginalPaper 22 April 2008 Pages: 165 - 172