Historically, Qishn was a port from which incense was exported. The traveller and explorer Freya Stark notes that, "...from Qishn, 200 to 250 tons (of incense, annually)". The port was known to the British East India Company as Kisseen.
Today, the people of Qishn earn most of their income through fishing, farming, or the rearing of livestock.
Sources
This article about a location in Yemen is a stub. You can help Wikipedia by expanding it.