dusky shark


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Related to dusky shark: Bronze whaler shark
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Synonyms for dusky shark

relatively slender blue-grey shark

References in periodicals archive ?
High seas pelagic (surface) longlines also hook many dusky shark.
However, the relatively high percentage of shark bycatch comprising dusky sharks (14.
Atlantic distribution of tag and recapture locations for the dusky shark, Carcharhinus obscurus, from the NMFS Cooperative Shark Cooperative Shark Tagging Program during 1962-93.
Protected species include: Atlantic angel shark, basking shark, big-eye sand tiger shark, bigeye sixgill shark, bigeye thresher shark, bignose shark, Caribbean reef shark, caribbean sharpnose shark, dusky shark, galapagos shark, lemon 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, tiger shark*, great hammerhead shark*, scalloped* and smooth hammerhead shark*.
Dusky sharks are dangerous to humans though attacks are rare.
Global phylogeography of the dusky shark, Carcharhinus obscurus: implications for fisheries management and monitoring the shark fin trade," has been published online in the journal Endangered Species Research.
Four proposals were submitted to CITES for uplisting of shark species to Appendix II to offer them greater protection: Proposal 15 for five shark species (Scalloped, Great and Smooth Hammerhead, Sandbar and Dusky Shark -- amended to remove the Sandbar and Dusky Shark); Proposal 16 for the Oceanic Whitetip by Palau and the United States; Proposal 17 for the Porbeagle Shark; and Proposal 18 for the Spiny Dogfish proposed by the EU and Palau.
Three-year (triennial) reproductive cycles with gestation periods of 18 to 22 months have been postulated for the dusky shark (Carcharhinus obscurus Lesueur, 1818) by Clark & von Schmidt (1965) and Musick et al.
2001), and Dusky Sharks, Carcharhinus obscurus, that had been taken incidentally in Japanese tuna fisheries in the Gulf of Mexico in the same decade, the shark stocks in the southeastern U.
Some populations, such as scalloped hammerheads and dusky sharks along the eastern U.
And dusky sharks don't breed until they're 20 to 25 years old, after which small litters typically arrive at 3-year intervals.
Therefore, a proposed 96-inch recreational minimum [see Trouble With Dusky Sharks, below] will eliminate those 23,000 recreational blacktip catches .
In contrast, species like porbeagle and dusky sharks (also species of concern) have considerably lower levels of productivity (r [approximately equal to]2-5% [yr.