To date, researchers have not collected enough data on the total population to properly assess their conservation status. Description of the Nurse Shark. Approximately 50% of pregnant sharks in the east coast population spend most of their 9–12 month gestation (pregnancy) at Wolf Rock, off Rainbow (the most northern known greynurse shark … Home aquariums are much too small to support them as they grow into adulthood. Learn more about these sharks below. Shark Adaptations. They are a grayish brown color that allows them to blend in well to their surroundings. The younger animals take shelter from predators in shallower habitats, while larger adults move to deeper waters to rest. The Nurse Shark is a common inshore bottom-dwelling shark, found in tropical and subtropical waters on the continental and insular shelves. Because they are inactive during the day, remain perfectly still, and are not targeted by fisheries throughout their range, nurse sharks are the most common species of shark that SCUBA divers or snorkelers experience on reefs within their range. Nurse sharks are very easy to identify. Nurse sharks are widely known as some of the more docile, slow moving, and “lazy” shark species. However, it is important for the aquarium to provide a variety of hiding places for the sharks to sleep. Read on to learn about the nurse shark. After birth, an adult female Nurse Shark is unable to produce eggs for 18 months. Global nurse shark population trends are unknown, but they have been depleted in some places as a result of overfishing. However, their mouths are quite small, so this obviously limits what they can chow down on! Given that nurse sharks give live birth and that individuals (even juveniles) have relatively small home ranges, it is surprising that all individuals across this large, tropical to warm temperate distribution are the same species. While they can be quite successful in zoos and large aquariums, it is simply too costly to provide them with proper care in a home environment. As with all sharks, this giant fish is incredibly interesting and very important to the delicate marine ecosystem, especially near fragile coral reefs. //
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