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In page Achill Island:
"While a number of attempts at setting up small industrial units on the island have been made, its economy is largely dependent on tourism. Subventions from Achill people working abroad allowed a number of families to remain living in Achill throughout the 19th and 20th centuries.[citation needed] In the past, fishing was a significant activity but this aspect of the economy has since reduced. At one stage, the island was known for its shark fishing, and basking shark in particular was fished for its valuable shark liver oil.