Duckweed as organic fish food

Introduction

Duckweeds are the smallest flowering plants. They grow as small colonies of plants floating on the surfaces of quiet bodies of water. Growing vegetatively, their multiplication can be extremely rapid, given the proper conditions. These plants are almost all leaf, having essentially no stem tissue, and only one or a few, very fine roots. In nature, duckweeds serve as food for many species of fish and aquatic birds. They can tolerate and grow under a wide range of conditions, including on water polluted with high concentrations of bacteria and some agricultural wastes. These characteristics have brought the duckweeds to the attention of environmental engineers and agriculturists alike.