The grey sharpnose shark, Rhizoprionodon oligolinx, is a commonly seen inshore species of southern Asia from the Arabian GUlf all the way to northern Australia and possibly even southern parts of Japan. Due to having a productive life history, even though they are exploited by a number of fisheries (artisanal and commercial) through gillnets, trawlers, and longlines. Like other species in this genus, their productive life history enables them to sustain relatively high levels of fishing pressure. But, little data is available on the magnitude of catches or the impact of fishing on the populations.
These sharks are a grey-brown colour on top that fades to a white underbelly. The top of their pectoral (side) fins are a grey colour too. With large eyes, small gill slits, and a pointy nose... they're really cute! I mean, look at that little second dorsal fin.
Little is known as the biology of this species. But the grey sharpnose shark probably has a life history very similar to the Australian sharpnose shark (Rhizoprionodon taylori) which grows to be a similar length and has a similar look. The grey sharpnose shark is small at birth, measuring 21-26 cm in length and maturing at 35 to 40 cm length. Their maximum length is about around 70 cm. Female grey sharpnose sharks give birth to 3-5 pups possibly every year. The IUCN has assessed them as Least Concern (LC).
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