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Hemigrapsus sanguineus, the Japanese shore crab or Asian shore crab, is a species of crab from East Asia. It has been introduced to several other regions, and is now an invasive species in North America and Europe. It was introduced to these regions by ships from Asia emptying their ballast tanks in coastal waters.
Hemigrapsus takanoi, the brush-clawed shore crab or Asian shore crab, is a small crab of the family Varunidae (formerly classified as Grapsidae) that lives on rocky shores surrounding the Pacific Ocean, and which is invasive along the European coastlines. This crab is omnivorous and eats small fish, invertebrates and algae.
The name Asian shore crab may refer to either of two species of crab: Hemigrapsus sanguineus; Hemigrapsus takanoi
The decapod (crustaceans, such as a crab, lobster, shrimp or prawn) is made up of 20 body segments grouped into two main body parts: the cephalothorax and the pleon . [1] [2] Each segment may possess one pair of appendages, although in various groups these may be reduced or missing. They are, from head to tail:
The natural range of the genus is restricted to the Pacific Ocean, except for Hemigrapsus affinis which lives along the Atlantic coasts of South America, from Cape São Roque (Rio Grande do Norte state, Brazil) to the San Matías Gulf, (Patagonia, Argentina).
The 67,000 described species range in size from Stygotantulus stocki at 0.1 mm (0.004 in), to the Japanese spider crab with a leg span of up to 3.8 m (12.5 ft) and a mass of 20 kg (44 lb). Like other arthropods , crustaceans have an exoskeleton , which they moult to grow.
Asian shore crab (Hemigraspus sanguineus) An invasive alien species that is a favorite food of seagulls and other shorebirds in the area. Common Spider Crab (Libinia emarginata) Green Crab (Carcinus maenus) This species is an invasive species originally from Europe that has been present in all waters of the State of New York for many decades ...
Long Island Sound is a large marine estuary in the Northeastern United States. It forms the maritime border between the states of New York and Connecticut.It is diverse and serves as a breeding ground to many different types of marine animal species; the following is a list of said species by scientific and/or common name.