Epidemiologists study outbreaks of diseases, the causes, locations, and how various communities are affected, utilizing relative information to aid in the prevention of future outbreaks. Epidemiologists help to keep the public informed of methods to maintain and improve public health.
Based on these criteria, the smallest known extant shark species appears to be Etmopterus perryi, males of which mature at 16 to 17.5 cm TL and gravid females have been found at 19 to 20 cm TL (Springer & Burgess 1985).
BlacknoseBlacknose shark shark ( Carcharhinus acronotus) is a small shark. commonly found in Florida bays and lagoons over sandy, shell. and coral bottoms. It has a very noticeable dusky smudge or. âmoustacheâ on the tip of its snout, which is more prominent. when young.