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Sep 21, 2016 · Speckled Swimming Crab shells can often be found washed up on the beaches of Padre Island. Ranging in size from two to five inches, this brightly-colored crab has light green spots on a darker, greenish-brown background. Like other swimming crabs, its hindmost legs are shaped like paddles that are well-adapted for swimming locomotion.
The Speckled swimming crab eats primarily detritus, but have also been recorded eating fish, mollusks, and other crustaceans. They ambush prey that go near their buried bodies. Speckled swimming crabs have been recorded capturing sea turtle hatchlings. Sea turtles are the primary predator to Arenaeus cribrarius.
Speckled swimming crabs are polygynandrous, meaning males and females have multiple mates. Mating System: polygynandrous (promiscuous) Speckled swimming crabs breed year-round, although breeding is more common in the summer and winter, when water temperature oscillations are reduced. Females can produce between 135,000 and 682,000 eggs.
Minimum carapace width: 2.28 cm (Ref. 93549 ). Inhabits shallow water along ocean sand beaches and is well adapted to life in the waves and shifting sand; usually in bottom burrows at daytime and emerges at night, at temperatures of 27.5 to 28.6°C and salinities of 27.5 to 35 ppt. Presumably feeds on a variety of items including mollusks ...
A. Fransozo. 2002. Reproduction of the speckled swimming crab Arenaeus cribrarius (Brachyura: Portunidae) on the Brazilian coast near 23º 30' S. Journal of Crustacean Biology, 22(2): 416-428. Pinheiro, M., O. Terceiro. 2000. Fecundity and reproductive output of the speckled swimming crab Arenaeus cribrarius (Lamarck, 1818) (Brachyura, Portunidae).
Color pattern distinguishes the specked crab from other crabs, also the inner orbital spines are bicuspid, and has a spine on the inner carpus vs. outer carpus in other crabs. Habitat. Shallow gulf, common in the surf, prefers sandy or muddy bottoms. Maximum Size. 12 cm (4 3/4 in) carapace width.
Arenaeus cribrarius (Speckled Swimming Crab) is a species of decapods in the family swimming crabs. They are native to The Neotropics and The Nearctic. They are solitary, nocturnal carnivores. They have parental care ( female provides care ). They rely on swimming and drag powered swimming to move around. EOL has data for 35 attributes, including:
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