May 23, 2020

Ginglymostoma cirratum, the nurse shark, resides in coastal waters in the Pacific and Atlantic Oceans. In the Pacific Ocean, nurse sharks are found in waters off. Ginglymostoma cirratum. These bottom dwelling sharks are usually yellowish-tan to dark brown and, as adults, average around to 8 feet. Reference for: Ginglymostoma cirratum. Source: NODC Taxonomic Code, database (version ). Acquired: Notes: Reference for: Ginglymostoma cirratum.

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These are bands of lighter and darker pigmentation along the dorsal surface. This electroreception is used for precise directional locating of prey or other creatures.

They also stay in the same group after copulation. Then the male inserts a clasper in her vent, and then rolls on his back beside the female. Taxonomy The nurse shark was first described by Bonnaterreas Squalus cirratus. Masses recorded vary greatly with only the largest of the sexes being reported in literature. Functional morphology of the feeding apparatus, feeding constraints, and suction performance in the nurse shark Ginglymostoma cirratum. Nurse sharks are not aggressive, but there are attacks on record, that are usually the result of human provocation ISAF Archived from the original on Breeding season, copulation, and fertilization occurs in June and July and lasts 2 to 4 weeks.

In other projects Wikimedia Commons Wikispecies. Cirrhoscyllium Barbelthroat carpetshark C. A large number of males generally try to mate with a single female, often leading to females bearing numerous scars and bruises from male bites.


Ginglymostoma cirratum

The IUCN reports that there are little data on the migration habits and mating between shivers pods or schools of nurse sharks across different sites.

While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control. The anal fins are similar in size to the second dorsal fins and precede the tail. Broadnose sevengill shark N. Nurse sharks are finglymostoma prey for American alligators Alligator mississippiensis where they share the same habitat.

Biting behavior in males has been noted as ginglymosyoma a possible indicator of a sexual hierarchy and is maintained through such behavior. Smalleye pygmy shark S. In a tank experiment small nurse sharks, covered for just a few minutes became considerably lighter than individuals exposed to full sunlight Castro Cetorhinus Basking shark C.

In some cirrafum, jaws release was accomplished only after using surgical instruments. Nurse sharks have few known predators. Adult mass ranges from Great hammerhead Sphyrna mokarran and bull sharks Carcharhinus leucas were observed attacking multiple nurse sharks on several occasions but failed to injure any and aren’t listed as actual predators.

Floral banded wobbegong O.

ADW: Ginglymostoma cirratum: INFORMATION

Group reproductive behaviors in free-living nurse sharks, Ginglymostoma cirratum. However, some unprovoked attacks on swimmers and divers have been reported. Proseriata and Kalyptorhynchia – Rhabditophora Castro writes of the exaggerated weights in previous literature. During courtship, a pair sometimes a triplet of adults were observed engaged in synchronized parallel swimming. Because of its relatively docile nature, swimming with, handling, and feeding nurse sharks is popular with ecotourism operators.


The IUCN is a global union of states, governmental agencies, and non-governmental organizations in a partnership that assesses the conservation status of species. Ctenacis Harlequin catshark C. Atlantic Ocean the body of water between Africa, Europe, the southern ocean above 60 degrees south latitudeand the western hemisphere. Great white shark C. Young in the uterus are sustained by a large supply of yolk.

By using this site, you agree to the Terms of Use and Privacy Policy. The effects of interactions with humans in coastal waters are unknown, but nursery areas are now limited to remote regions, suggesting an association. If harassed while swimming, diving, or snorkeling, nurse sharks will bite but usually vinglymostoma humans alone. First dorsal fin originates well behind the pectoral fins and over or behind the origin of the pelvic fins Biology Distinctive Features Nurse sharks have two spineless, rounded dorsal fins with the first larger than second, and one anal fin.

Gingljmostoma, Age, and Growth Size at maturity for females is about cms and about cms for males.

The mating cycle is biennial, taking 18 months for the female’s ovaries to produce another batch of eggs.