Browsing: Crustacean

Crustaceans are a diverse group of arthropods that include familiar marine and freshwater organisms such as crabs, lobsters, shrimp, and barnacles. Characterized by their hard exoskeletons made of chitin, two pairs of antennae, and segmented bodies that typically feature a distinct head, thorax, and abdomen, crustaceans play vital roles in aquatic ecosystems as both predators and prey. They vary widely in size from microscopic planktonic copepods to the large American lobster. Crustaceans are also of significant economic importance, being a major source of seafood for human consumption. Ecologically, they contribute to the aquatic food web and influence the health of their environments through their feeding and burrowing activities. Their study helps scientists understand ecological dynamics and develop sustainable fishing practices.