Traits
The blue crab is a swift-swimming crustacean, supported by a pair of paddle-shaped rear swimming legs. Its carapace, or shell, boasts a easy, olive-green hue, whereas mature females show sensible blue claws with purple ideas. Grownup males can attain a diameter of as much as 9 inches and dwell for round three years.
Distinguishing options embrace slim, inverted T-shaped abdomens in males (often known as «Jimmies») and broad, rounded abdomens in mature females (known as «sooks»).
Blue crabs develop repeatedly, molting a number of occasions throughout their lifespan. In the course of the speedy post-molt stage, they’ve an virtually clear physique, incomes them the identify «soft-shelled crab.»
Habitat
Blue crabs inhabit a wide range of environments, together with the open sea, rivers, and brackish waters alongside coastal cabinets and estuaries. They exhibit an omnivorous food regimen, consuming every part from plant and animal detritus to clams, oysters, mussels, smaller crustaceans, and freshly deceased fish.
Life Cycle
The reproductive habits of blue crabs is distinct. Mating happens from Might via October in brackish waters. Previous to mating, males cradle a soft-shelled feminine of their legs, carrying her for a number of days till she molts. After mating, the male continues to assist the feminine till her shell hardens.
Females develop an exterior egg mass, a bright-orange sponge, beneath their stomach. Inside roughly two weeks, larvae are launched into the water. These larvae finally discover their option to sea waters however return to estuaries and rivers to mature into full-sized grownup crabs. Their lifespan usually spans round three years.
