Dusky sharks are dangerous to humans though attacks are rare.
Dusky shark term females carry 10-mm oocytes at the time of parturition in December while non-gravid females are carrying oocytes 25 mm to 45 mm in diameter at that time.
Dusky shark, related but much less common, lacks conspicuous fin markings.
It includes bony fish (such as mackerel, tuna, anchovies, herrings, sardines, flying fish, ocean sunfish, swordfish, marlins, sailfish, barracudas), cartilaginous fish (such as blue sharks,
dusky sharks, hammerhead sharks, dogfish, cat sharks, eagle rays), sea turtles, small cetaceans, pinnipeds, squid, pelagic red crab, salps, porifera, and birds.
* Large
dusky shark fins among most desirable on Asian shark-fin market, for making soup.
The only species with a CPUE decline was the
dusky shark ([r.sup.2] = 0.07), while all other common species showed little to no change (Fig.
Goliath Grouper (Jewfish), Nassau Grouper, Sawfish, Atlantic Angel Shark, Basking Shark, Bigeye Sand Tiger Shark, Bigeye Sixgill Shark, Bigeye Thresher Shark, Bignose Shark, Caribbean Reef Shark, Caribbean Sharpnose Shark,
Dusky Shark, Galapagos Shark, Longfin Mako Shark, Narrowtooth Shark, Night Shark, Silky Shark, Sand Tiger Shark, Sandbar Shark, Sevengill Shark, Sixgill Shark, Smalltail Shark, Spiny Dogfish, Whale Shark, White Shark, Manta Ray, Spotted Eagle Ray, Longbill Spearfish, Mediterranean Spearfish, Roundscale Spearfish and Sturgeon.
The
Dusky Shark, a 6ft 6in specimen found in the Pacific, Atlantic and Indian Oceans, can exert a force of 9st 4lb between its jaws.
(3) Huish and Benedict (1977) published their results under the species name for the
dusky shark (Carcharhinus obscurus), but Grubbs (2001) noted that the size of the animals tracked was smaller than the size at birth for C.
Age and growth estimates for the
dusky shark, Carcharhinus obscurus, in the western North Atlantic Ocean.
Scientific name Common name Abbreviation Carcharhinidae Carcharinus acronotus Blacknose shark Cac Carcharinus amblyrhynchos Grey reef shark Cal Carcharinus falciformis Silky shark Cfa Carcharinus leucas Bull shark Cle Carcharinus limbatus Blacktip shark Cli Carcharinus longimanus Oceanic whitetip shark Clo Carcharinus obscurus
Dusky shark Cob Carcharinus plumbeus Sandbar shark Cpl Galeocerdo cuuier Tiger shark Gcu Prionace glauca Blue shark Pgl Rhizoprionodon taylori Australian sharpnose shark Rta Sphyrnidae Sphyrna lewini Scalloped hammerhead shark Sle Triakidae Galeorhinus galeus Soupfin shark Gga Lamnidae Isurus oxyrinchus Mako shark Iox Alophiidae Alopias superciliosus Bigeye thresher shark Asu Squatinidae Squalus acanthias Spiny dogfish Sac Squaluss mitsukurii Shortspine spurdog Smi
Ninety-one percent of the tags are accounted for by eight species: blue shark (57%); sandbar shark, Carcharhinus plumbeus (15%);
dusky shark, C.