It’s electric: Scientists develop cheap way to keep sharks off fishing hooks
via news.mongabay.com
Short excerpt below. Read at the original source.
Unintentional catch is a big reason that more than a hundred shark species are threatened with extinction. Yet creating a small electric field around fishing hooks using cheap inputs — zinc and graphite — is enough to keep many away, a new study indicates. In coastal waters off Florida, small zinc-and-graphite blocks rigged next to […]