The blue crab callinectes sapidus
This presentation is the property of its rightful owner.
Sponsored Links
1 / 24

The Blue Crab Callinectes sapidus PowerPoint PPT Presentation


  • 57 Views
  • Uploaded on
  • Presentation posted in: General

The Blue Crab Callinectes sapidus. Callinectes- beautiful swimmer Sapidus-savory. Member of the swimming crab family Aggressive, bottom-dwelling predator and “keystone” species Also make up the most productive commercial and recreational fisheries. Sexually dimorphic. Taxonomy.

Download Presentation

The Blue Crab Callinectes sapidus

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


The blue crab callinectes sapidus

The Blue CrabCallinectes sapidus

Callinectes- beautiful swimmer

Sapidus-savory


The blue crab callinectes sapidus

  • Member of the swimming crab family

  • Aggressive, bottom-dwelling predator and “keystone” species

  • Also make up the most productive commercial and recreational fisheries


Sexually dimorphic

Sexually dimorphic


Taxonomy

Taxonomy

  • Kingdom: Animalia

  • Phylum: Arthropoda (spiders, insects)

  • Class: Crustacea (lobsters, shrimp)

  • Order: Decapoda (ten-footed)

  • Family: Portunidae (swimming crabs)

  • Close relatives of the shrimp and lobster


The blue crab callinectes sapidus

  • Growth and development occurs when an animal molts (sheds its rigid exoskeleton)

  • Before molting, a new shell is formed underneath the old exoskeleton, which then loosens and is cast off


The blue crab callinectes sapidus

  • Pre-copulation dance


Habitat

Habitat

  • Extends along the Atlantic Coast from Nova Scotia through South America

  • Live in estuaries and need brackish (salt and freshwater mix) and high salinity waters for their complex life cycle

  • Loves SAV (submerged aquatic vegetation) to hide in and buries in the deep, muddy parts of the estuary in the winter


General facts

General Facts

  • Diet: Omnivore, opportunistic (taking advantage of what is available), which also means they will eat each other if they have to

  • Average lifespan in the wild: 1 to 3 years

  • Size: 4 in (10.2 cm) long; 9 in (23 cm) wide

    Size relative to a tea cup


Threats

Threats

  • Habitat loss

  • Degraded water quality

  • Overfishing


Economic importance

Economic Importance

  • 1/3 of the nation’s catch of blue crabs come from the Chesapeake

  • Blue crabs have the highest value of any Chesapeake commercial fishery

  • In 2000, the harvest was valued at $55 million

  • Also major recreational fishery


Cool stuff

Cool Stuff!

  • Crabs can release their claws (Autotomy) and regenerate new ones

  • Males are called “jimmies”, females called “sooks”

  • Can survive out of water for several days as long as its moist and not a stressful environment

  • Use chemoreception to find food


  • Login