This compilation is based on several years of personal and collaborative work on inshore and offshore
waters of South West Nigeria. The relevance of algae, polychaetes, juvenile stages, as well as water chemistry in determining environmental status was documented. Nutrient level, dissolved oxygen, biological oxygen demand level and thermocline development are important abiotic factors. [Nature and Science 2010;8(6):62-65]. (ISSN: 1545-0740).