The present volume of the series, "Perspectives in Animal Ecology and Reproduction Vol. 10" with 23 chapters has been compiled, and the important contributions include: -Bacterial Biofilms: Impact on Aquatic Ecosystems -Effects of Edaphic Factors on Population Dynamics of Soil and Plant Parasitic Nematodes -Arthropod Natural Enemy- Pesticide Interaction -Synergistic Effect of NPV, Azadirachtin and Titanium Dioxide (Nanoparticale) on the Larvicidal and Pupicidal Effect of Helicoverpa armigera -Breeding, Larval Biology and Seed Production of Indian River Prawn, Macrobrachium malcolmsonii...