Galapagos Sally Lightfoot Crab

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Galapagos Sally Lightfoot Crab

The Galapagos sally lightfoot crab, also commonly called by its scientific name of Grapsus grapsus, is a species of crab that lives in the western coast of the Americas, including North, Central and South America, as well as the Galapagos Islands. This crab is also known as the red rock crab and sally lightfoot.


Content List

1. Scientific & Common Names

2. Characteristics

a. Breeding

b. Behavior

3. History

4. Present Status

5. References


Scientific & Common Names

Kingdom - Animalia

Phylum - Arthropoda

Order - Decopoda

Family - Grapsidae

Genus - Grapsus

Species - G. grapsus

Common Names - Galapagos Sally Lightfoot Crab, Red Rock Crab, Sally Lightfoot, Abuete Negro.


Characteristics

The Galapagos sally lightfoot crab has a typical crab shape and five pairs of legs. The body of this crab is very colorful, and most adult crabs can be pink, red, brown or yellow in color. Young crabs usually are more muted in color. It is one of the most commonly found crabs on the western coast of the Americas.


Breeding

The male Galapagos sally lightfoot crab can mate every 10 days, as it takes this long for them to regenerate their sperm. After mating with the male crab, the female then lays her eggs; the number of eggs laid depends upon the size of the crab.


Behavior

The Galapagos sally lightfoot crab lives on algae, plant matter and dead animals. This crab is a very fast-moving crab and is very agile. These characteristics make it hard to catch. The Galapagos sally lightfoot crab is not generally used as a food source for humans, as it is a small crab and not very tasty. However, it is used as bait by fisherman to help catch other sea-going creatures that do provide food for humans.


History

The first written record of the Galapagos sally lightfoot crab was made in 1758. The Galapagos sally lightfoot crab is very prolific on the sandy and rocky beaches of North, Central and South America, as well as the Galapagos Islands. The crab's beautiful coloring makes it very popular with local natives and tourists alike.


Present Status

The Galapagos sally lightfoot crab is very prolific in its native lands and is not on any endangered or extinction risk lists. These crabs are used primarily as bait for fisherman, as they are not considered edible for humans due to their small size.


References

http://eol.org/pages/1021865/detailshttp://horseshoecrab.org/

http://www.animalcorner.co.uk/galapagos/sallylight.html

http://marinelife.about.com/od/invertebrates/p/sally-lightfoot-crab.htm

http://www.thecephalopodpage.org/MarineInvertebrateZoology/Grapsusgrapsus.html

http://eebweb.arizona.edu/courses/galapagos/expert%20topics%202007%20(bonine)/Nowak_SallyLightfoot.pdf

http://www.galapagosexpeditions.com/islands/sally-lightfoot-crabs.php

http://en.wikipedia.org/wiki/Grapsus_grapsus