1. Identification of Bacteria Isolated from an Oligotrophic Lake with Pesticide Removal Capacities

   • L. López
   • C. Pozo
   • J. González-López

   OriginalPaper Pages: 299 - 312

2. Developmental Responses of a Terrestrial Insect Detritivore, Megaselia scalaris (Loew) to Four Selenium Species

   • Peter D. Jensen
   • Maria D. Rivas
   • John T. Trumble

   OriginalPaper Pages: 313 - 322

3. Use of Comet and Micronucleus Assays to Measure Genotoxicity in Meadow Voles (Microtus pennsylvanicus) Living in Golf Course Ecosystems Exposed to Pesticides

   • Loren D. Knopper
   • Pierre Mineau
   • David R. S. Lean

   OriginalPaper Pages: 323 - 335

4. Toxicity of Organic Compounds to Marine Invertebrate Embryos and Larvae: A Comparison Between the Sea Urchin Embryogenesis Bioassay and Alternative Test Species

   • Juan Bellas
   • Ricardo Beiras
   • Nuria Fernández

   OriginalPaper Pages: 337 - 353

5. Threshold Levels for Effects of Insecticides in Freshwater Ecosystems: A Review

   • René P. A. Van. Wijngaarden
   • Theo C. M. Brock
   • Paul J. Van Den Brink

   OriginalPaper Pages: 355 - 380

6. Thyroid Function in Nestling Tree Swallows and Eastern Bluebirds Exposed to Non-Persistent Pesticides and p, p′-DDE in Apple Orchards of Southern Ontario, Canada

   • Gregory J. Mayne
   • Christine A. Bishop
   • Bruce Hunter

   OriginalPaper Pages: 381 - 396

7. Environmental Impacts of Diesel Fuel on Bacteria and Phytoplankton in a Tropical Estuary Assessed Using In Situ Mesocosms.

   • S. Nayar
   • B.P.L. Goh
   • L.M. Chou

   OriginalPaper Pages: 397 - 412