Definition
Ostracoda is a class of small crustaceans, commonly known as seed shrimp or mussel shrimp. They have a bivalve-like carapace that encloses their body, resembling tiny seeds or mussels. These creatures are found in a wide variety of aquatic environments, both freshwater and marine. They are often used as indicators of water quality and environmental change. Some ostracods can even survive in temporary pools of water. Theyβre like miniature, armored clams swimming around.