Dusky shark - Wikipedia
The dusky shark (Carcharhinus obscurus) is a species of requiem shark, in the family Carcharhinidae, occurring in tropical and warm-temperate continental seas worldwide.
Carcharhinus obscurus – Discover Fishes - Florida Museum
Dusky Shark Carcharhinus obscurus Dusky sharks are wide-ranging coastal and pelagic species that prefer temperate to tropical waters. They are large-bodied, typically grey with dusky margins on the fins. They are an important fisheries resource, targeted and taken as …
Flexibility of Heterocercal Tails: What Can the Functional …
We measured flexibility and EI for the ventral lobes of the two shark species with the most stereotypic tail morphologies, the dusky, and the porbeagle. In all sharks, the ventral lobe lacks skeletal support and musculature which provide both active and passive stiffness, but instead is composed of a core of connective tissue sandwiched between ...
Dusky Shark - A-Z Animals
2024年5月27日 · Dusky sharks are one of the most desired shark species for their fins used in shark-fin soup and liver oil. In addition, its skin is used to make leather. As a result, they are vulnerable to commercial and recreational fishing, but they are often victims of overfishing as a …
Dusky Whaler, Carcharhinus obscurus (Lesueur, 1818)
The Dusky Whaler has a long pointed snout, long pectoral fins and a low ridge between the dorsal fins. The first dorsal fin is tall and the tail is heterocercal. The teeth are serrated. Those in the upper jaw are broad and triangular. The lower jaw teeth are more slender. The species is grey to grey-brown above and pale below.
Morphology and flexibility of the Dusky shark (Carcharhinus …
a) Skeletal and connective tissue of the Dusky tail, with sections at approximately 10%, 50% and 80% of the dorsal lobe length from the caudal peduncle to highlight morphology of neural spines...
Dusky Shark: Characteristics, Habitat, and Threats - American …
The dusky shark, often referred to as the bronze or black whaler, is a sizable pelagic species that can be found worldwide in tropical and subtropical regions. Their long-distance seasonal migrations, which males and females carry out in distinct groups, are well-known.
Dusky Shark - National Geographic
The dusky shark swims in tropical and temperate oceans worldwide, cruising from depths of 1,300 feet near the continental shelf all the way in to the surf zone and other shallow inshore waters ...
Dusky Shark: Carcharhinus obscurus - sharks and rays
The dusky shark is found along most warm-temperate coastlines but its presence in tropical climates is more patchy. In the western Atlantic, it ranges from Georges Bank to Florida and the Gulf of Mexico, along the coast of Central and South America to southern Brazil.
Dusky Shark ( Carcharhinus obscurus ) - OzAnimals
There is an indistinct stripe on the body from behind the gills to the tail. Juveniles have a dusky coloured lower tail lobe and underside of the pectoral fins. Fin markings are less prominent as the fish ages.