page_title: Spiny lobster
section_title: Ecology
hierarchical_section_title: Spiny lobster / Ecology
caption_attribution_description: Spanish: Pesca de Langostas con Nasa en el Archipielago de Los Roques, Venezuela
context_page_description: Spiny lobsters, also known as langustas, langouste, or rock lobsters, are a family of about 60 species of achelate crustaceans, in the Decapoda Reptantia. Spiny lobsters are also, especially in Australia, New Zealand, Ireland, South Africa, and the Bahamas, called crayfish, sea crayfish, or crawfish, terms which elsewhere are reserved for freshwater crayfish.
context_section_description: Spiny lobsters are found in almost all warm seas, including the Caribbean and the Mediterranean Sea, but are particularly common in Australasia, where they are referred to commonly as crayfish or sea crayfish (Jasus edwardsii), and in South Africa (Jasus lalandii).
  Spiny lobsters tend to live in crevices of rocks and coral reefs, only occasionally venturing out at night to seek snails, clams, sea-hares, crabs, or sea urchins to eat. Sometimes, they migrate in very large groups in long files of lobsters across the sea floor. These lines may be more than 50 lobsters long. Spiny lobsters navigate using the smell and taste of natural substances in the water that change in different parts of the ocean. It was recently discovered that spiny lobsters can also navigate by detecting the Earth's magnetic field. They keep together by contact, using their long antennae. Potential predators may be deterred from eating spiny lobsters by a loud screech made by the antennae of the spiny lobsters rubbing against a smooth part of the exoskeleton. Spiny lobsters usually exhibit the social habit of being together. However recent studies indicate that healthy lobsters move away from infected ones, leaving the diseased lobsters to fend for themselves.
  Like true lobsters, spiny lobsters are edible and are an economically significant food source; they are the biggest food export of the Bahamas, for instance.
caption: Fishing for Panulirus argus in Venezuela
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