blue crab

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Related to Callinectes sapidus: Cancer irroratus

blue crab,

common name for a crustaceancrustacean
, primarily aquatic arthropod of the subphylum Crustacea. Most of the 44,000 crustacean species are marine, but there are many freshwater forms. The few groups that inhabit terrestrial areas have not been particularly successful in an evolutionary sense; most require
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, Callinectes sapidus, found on the S Atlantic and Gulf coasts of North America. The blue crab is a member of the family of swimming crabs known as the Portunidae and is characterized by a broad, semitriangular carapace (shell) covering the thorax, by a narrow abdomen tucked under its body, and by five pairs of appendages called pereiopods, of which the first two bear large claws (chelae) and the last two are flattened paddles modified for swimming. It is the most common edible crab of the Atlantic coast, and several million pounds are fished commercially by trapping or trawling each year. It is sold both as the hard-shell variety and as the familiar delicacy known as the soft-shelled crab. In the hard-shell form, the crab is in an intermolt phase (between molts) and the exoskeleton is fully hardened (sclerotized). In its soft-shell stage, the crab is in the phase just after the molt but before the exoskeleton has hardened. Since, in nature, the crab retires to secluded areas at the time of the molt and is thus difficult to collect, commercial fishermen collect the crabs at the so-called peeler stage, which occurs two to three days before the molt. The crabs are then held in pens, on floats in the water, until just after the molt, when they are marketable. The ovaries of the female begin to develop only after mating has taken place. The female carries the young under her abdomen until they hatch as tiny larvae, which are only 1-25 in. (0.1 cm) long. The crabs molt many times and grow to 7 in. (17.8 cm) in about 200 days. Blue crabs are classified in the phylum ArthropodaArthropoda
[Gr.,=jointed feet], largest and most diverse animal phylum. The arthropods include crustaceans, insects, centipedes, millipedes, spiders, scorpions, and the extinct trilobites.
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, subphylum Crustacea, class Malacostraca, order Decapoda, family Portunidae.
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References in periodicals archive ?
Breeding populations of Callinectes sapidus in the United States extend from Long Island, NY, to the northern Gulf of Mexico.
Intra-specific morphological variability has been observed in larval Callinectes sapidus (Costlow, 1965) and is well documented in other larval decapods (DeBrosse et ai, 1990; Thatje and Bacardit, 2000; Guay et ai, 2011; Tamura et ai, 2017).
Fluid mechanisms produces conflicting constraints during olfactory navigation of blue crabs, Callinectes sapidus. J.
Metal concentrations in blue crab (Callinectes sapidus) and mullet (Mugil cephalus) in Iskenderun Bay, Northern East Mediterranean, Turkey.
The measures of Blue crab's (Callinectes sapidus, Rathbun, 1896) and sand crab's (Portunus pelagicus, Linnaeus, 1758) breast meat fat contents were 1.51 [+ or -] 0.01 and 1.53 [+ or -] 0.01%, respectively [27].
Por las razones antes expuestas se planteo el siguiente objetivo: evaluar la composicion proximal de la carne pasteurizasa de cangrejo (Callinectes sapidus) procesada en el estado Zulia, Venezuela.
Familia Genero Especie Portunidae Araneus Cribarius (Lamark, 1818) Callinectes Sapidus (Rathbun, 1816) Callinectes Bocourti (A.