1. Macroinvertebrate community in the lower Ebro river (NE Spain)

   • Isabel Muñoz
   • Narcis Prat

   OriginalPaper Pages: 65 - 78

2. The fishes of northern and central Veracruz, Mexico

   • Hortencia Obregón-Barboza
   • Salvador Contreras-Balderas
   • María de Lourdes Lozano-Vilano

   OriginalPaper Pages: 79 - 95

3. Regulation of phytoplankton dynamics in a Laurentian Great Lakes estuary

   • David M. Klarer
   • David F. Millie

   OriginalPaper Pages: 97 - 108

4. Coral and sea urchin assemblage structure and interrelationships in Kenyan reef lagoons

   • T. R. McClanahan
   • J. C. Mutere

   OriginalPaper Pages: 109 - 124

5. Four fish species new to the Omo-Turkana basin, with comments on the distribution ofNemacheilus abyssinicus (Cypriniformes: Balitoridae) in Ethiopia

   • Yu. Yu. Dgebuadze
   • A. S. Golubtsov
   • M. V. Mina

   OriginalPaper Pages: 125 - 128