Artifacts offer Pacific shark species absence clues 工藝品提供太平洋鯊魚物種缺席線索

Tue, Aug 06, 2013 - Page 10

Nineteenth century tools made from sharks’ teeth suggest that two species of shark used to populate the Central Pacific but are no longer present.

Using artifacts from museums, a team of US researchers found that spot-tail and dusky sharks used to inhabit the reefs surrounding the Gilbert Islands.

The unusual historical data would help evaluate the success of ecological conservation measures, they added.

In their paper, the team from the Field Museum of Natural History, Chicago, and Columbia University, New York, said indigenous artifacts often represented an “under-utilized source of data.”

(Liberty Times)