Aquatic Eco-Systems
Unveiling Aquatic Worlds: Characteristics, Salinity, and Fish Diversity Across Freshwater, Brackish, and Marine Habitats Earth's surface is predominantly covered by water, forming diverse aquatic ecosystems that range from vast oceans to winding rivers and serene lakes. These environments, though all water-based, possess unique physical and chemical properties that dictate the life forms they can support. This report will explore the fascinating distinctions between freshwater, brackish water, and marine water, focusing on their defining characteristics, salinity gradients, and the remarkable fish diversity that has evolved to thrive within each unique aquatic world. T he Salinity Spectrum: Defining Aquatic Environments Salinity, the concentration of dissolved salts in water, is the fundamental characteristic that categorizes aquatic environments. It is typically measured in parts per thousand (ppt), representing the grams of salt per 1,000 grams of water. Freshwater: ...