Knowra Decapoda Decapoda Decapoda is an order of crustaceans including crabs, lobsters, crayfish, and many shrimp. Its members typically have five pairs of thoracic legs, with the first pair often modified into claws.
Malacostraca : Malacostraca is the largest class of crustaceans, including decapods, krill, and many other groups. Decapoda is one of the major orders within this crustacean class.
Cephalothorax : The cephalothorax is a body region formed by the fusion of the head and thorax. In decapods, it bears the mouthparts, eyes, and five pairs of thoracic limbs.
Crab fishery : A crab fishery harvests wild crabs for food or other commercial uses. Crabs are a major decapod group supporting fisheries worldwide.
Brachyura : Brachyura is the infraorder of true crabs, characterized by a reduced abdomen tucked beneath the thorax. True crabs are a highly diverse decapod lineage with a distinctive body form.
Euphausiacea : Euphausiacea is the order of krill, small marine crustaceans that resemble shrimp but are not decapods. Krill look shrimp-like, yet belong to a different malacostracan order.
Arthropod : An arthropod is an invertebrate with a segmented body, jointed limbs, and an exoskeleton. Decapods share the defining jointed-limb body plan of arthropods.
Pereiopod : A pereiopod is a thoracic appendage used for walking, feeding, or other functions in crustaceans. The five pairs of these limbs give Decapoda its name.
Lobster fishery : A lobster fishery harvests spiny or clawed lobsters from marine waters. Lobsters are commercially valuable decapods managed through targeted fisheries.
Astacidea : Astacidea is a decapod infraorder that includes clawed lobsters and crayfish. Its members include familiar freshwater and marine forms with prominent claws.
Amphipoda : Amphipoda is an order of mostly small crustaceans with laterally compressed bodies and no carapace. Amphipods are another familiar crustacean group, but lack the decapod body plan.
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