A great example of how data crowd-sourced from Citizen Scientists is helping to improve understanding of shark populations and behavior.
Site fidelity – the tendency to return to a particular area – isn’t exactly new in a species of shark (e.g. reef sharks, lemon sharks, even great white sharks). But that place is usually some sort of habitat… not a over 100-feet (34 meter) deep shipwreck. However, that is exactly the case for female sand tiger sharks (Carcharias taurus) off the coast of North Carolina!
Sand tiger sharks, also known as grey nurse sharks or spotted ragged-tooth sharks, are found globally in subtropical and temperate waters. Despite looking quite scary due to their tooth grins that never quite close, they are a slow-moving shark that are listed as Vulnerable by the International Union for Conservation of Nature (IUCN). A grey colored shark with reddish-brown spots throughout its body, they feast on a variety of animals such as a fish, crustaceans, squid, skates and even other sharks!
In September 2016, a citizen scientist wasn’t surprised to see an individual female sand tiger shark while scuba diving on the Aeolus shipwreck. Continue reading