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Jyllands Posten2012-01-31: Government takes steps to protect Denmark‘s endangered marine mammals with acoustic net alarms All fishermen using nets in Denmark’s Storebælt Sound will now be required to use a ‘pinger’, an underwater acoustic alarm attached to the net, to keep endangered… –> All fishermen using nets in Denmark’s Storebælt Sound will now be required to use a ‘pinger’, an underwater acoustic alarm attached to the net, to keep endangered porpoises from getting entangled in their nets. The new law comes into… more »