Ng had caught a dusky shark earlier, so he thought the hook might hold another shark.
From the newsobserver.com
Another once-common species, the silky shark, has lost 90 per cent of its population, and a third, the dusky shark, is down by 80 per cent.
From the newscientist.com
The dusky shark in the western Atlantic is threatened not only because it has been overfished but also because it takes up to 20 years to mature sexually and reproduce.
From the washingtonpost.com
For most of the smaller species of dolphins, only a few of the larger sharks, such as the bull shark, dusky shark, tiger shark and great white shark are a potential risk, especially for calves.
From the en.wikipedia.org
The dusky shark, which averages nearly 12 feet in length and 400 pounds, takes two decades to reach sexual maturity and has small litters every three years, which makes it vulnerable to overfishing.
From the washingtonpost.com
A tourist wrestles with a dusky whaler shark which comes close to dozens of swimmers at a Caloundra beach over the weekend.
From the smh.com.au
In the United States, populations of some shark species, such as dusky sharks, have declined by roughly 80 percent since the 1970s.
From the cnn.com
Catch reports from shark fishermen indicated increasing action on a mix of makos, threshers, blue whalers and dusky sharks, with most of the action coming from the waters outside the 20-Fathom Line.