The content you've requested is available without charge only to active Sigma Xi members and
If you are an active member or an individual subscriber, please log in now in order to access this article.
If you are not a member or individual subscriber, you can:
The largest fish in the sea, the whale shark, is listed as vulnerable on the IUCN Red List of Threatened Species. Populations of the shark are thought to be declining, but collecting information on their whereabouts and numbers is no simple task. In addition to its physical grandiosity, the whale shark also is an epic world traveler, making it difficult to monitor. Historically, conservation biologists have monitored populations of this animal through the costly process of tagging individuals. Fortunately, scientists can get some crowdsourced help: Whale sharks, which eat zooplankton and krill, and which are not dangerous to humans, congregate for feeding in some spots that are popular among tourists. Marine biologist Tim K. Davies and his colleagues showed that photographs found on social media sites could be used to identify individual whale sharks because of the unique spots on their backs and sides. This simple technique could be used to monitor a larger number of whale sharks than was possible with previous monitoring techniques, and thus offer a much broader view of shark numbers and locations over time.
Connect With Us:
An early peek at each new issue, with descriptions of feature articles, columns, and more. Every other issue contains links to everything in the latest issue's table of contents.News of book reviews published in American Scientist and around the web, as well as other noteworthy happenings in the world of science books.
To sign up for automatic emails of the American Scientist Update and Scientists' Nightstand issues, create an online profile, then sign up in the My AmSci area.
JSTOR, the online academic archive, contains complete back issues of American Scientist from 1913 (known then as the Sigma Xi Quarterly) through 2005.
The table of contents for each issue is freely available to all users; those with institutional access can read each complete issue.
View the full collection here.
Receive notification when new content is posted from the entire website, or choose from the customized feeds available.