Common names from other countries
Environment: milieu / climate zone / depth range / distribution range
Écologie
Benthopélagique; eau douce; saumâtre; profondeur 0 - 90 m (Ref. 109245), usually 0 - 35 m (Ref. 367). Tropical; 6°C - 30°C (Ref. 105839), preferred 25°C (Ref. 107945); 47°N - 36°S, 125°W - 34°W
Western Atlantic: From Nova Scotia to Rio de la Plata, Argentina. Introduced in the eastern Atlantic, North Sea, Mediterranean Sea, Adriatic Sea, Black Sea and Indo-Pacific. Tropical to temperate.
Length at first maturity / Taille / Poids / Âge
Maturity: Lm 12.8, range 13 - 13 cm Max length : 22.7 cm WD mâle / non sexé; (Ref. 367); âge max. reporté: 3.00 années (Ref. 105839)
Description synthétique
Morphologie
Carapace more than twice as broad as long; 9 blunt to acuminate teeth (outer orbital tooth and strong lateral spine included) on arched anterolateral margin; front (excluding inner orbital angles) bearing 2 obtuse to acuminate, broadly triangular teeth with often sinuous inner margins longer than outer margins. Much of convex dorsal surface smooth, but scattered and transverse lines of fine granules; sculpture of regions near center varying from low and smooth to rather sharply raised relief with crowded granules; pincers strong, dissimilar, and ridged longitudinally; fifth legs flattened in form of paddles. Males with T-shaped abdomen level of thoracic sternite 4; slender first pleopods with membranous tip reaching beyond suture between thoracic sternites 4 and 5; sinuously curved overlapping proximally and armed distally with a row of large and small retrogressive spinules. Color: greyish, bluish, or brownish green. Males with propodi of chelae blue on inner and white on outer surfaces, fingers blue on inner and white on outer surfaces and tipped with red. Mature females with orange fingers on chelae tipped with purple. Underparts off-white with tints of yellow and pink. Color variations is associated with sexual dimorphism and molt cycle.
An epibenthic omnivore, that is active and abundant in shallow habitats (Ref. 087949). Longevity was estimated from a population of blue crabs in Chesapeake Bay (Ref. 105839).
Members of the order Decapoda are mostly gonochoric. Mating behavior: Precopulatory courtship ritual is common (through olfactory and tactile cues); usually indirect sperm transfer.
Tavares, M. 2003. (Ref. 367)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-1)
statut CITES (Ref. 108899)
Not Evaluated
Not Evaluated
Utilisations par l'homme
Pêcheries: commercial
FAO - Aquaculture: production; pêcheries: landings, species profile | FishSource | Sea Around Us
Outils
Sources Internet
Estimates based on models
Preferred temperature
(Ref.
115969): 12.3 - 28, mean 24.4 (based on 788 cells).
Résilience
Haut, temps minimum de doublement de population inférieur à 15 mois (K=0.5-1.59; tmax=3).
Prior r = 0.89, 95% CL = 0.59 - 1.34, Based on 2 full stock assessments.
Vulnérabilité
Low vulnerability (16 of 100).
