/Chris Knowlton

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So far Chris Knowlton has created 5 blog entries.

Hot Topic – Guidance on Determining Potential Effects to Marine Mammal Hearing

The National Marine Fisheries Service (NMFS) is the U.S. federal agency that is responsible for the stewardship of the nation’s ocean resources, including the management of the majority of marine mammals, such as whales, dolphins, porpoises, seals, and sea lions. The U.S. Fish and Wildlife Service (USFWS) has jurisdiction over walruses, polar bears, manatees, dugongs, and sea [...]

Hot Topic – Guidance on Determining Potential Effects to Marine Mammal Hearing 2017-11-15T09:29:53+00:00

Hot Topic – Hearing Sensitivity

    False killer whales can lower their hearing sensitivity A recent paper by Paul Nachtigall and Alexander Supin describes how a false killer whale is able to lower its hearing sensitivity before a loud sound when given a warning beforehand. Because many marine animals depend on their hearing for feeding and communication, loud sounds in the environment can have [...]

Hot Topic – Hearing Sensitivity 2017-09-07T13:50:19+00:00

Hot Topic – Mass Stranding

Mass Strandings The term stranding refers to an aquatic animal observed in an inappropriate location, for example, an offshore species found inshore. Most often, stranded animals are found on a beach or in shallow water. Along the U.S. coast alone, about 1,000 cetaceans and 2,500 pinnipeds strand annually. When three or more animals strand together in time [...]

Hot Topic – Mass Stranding 2017-09-07T13:50:44+00:00

Hot Topic – Monitoring Wind Farm Construction

Monitoring the Construction of the First U.S. Offshore Wind Farm for Potential Noise Impacts on Marine Life Scientists deploy a hydrophone array to monitor the noise from construction of wind turbines of the coast of Block Island, Rhode Island. Photo credit: Jim Miller. Wind energy is increasingly being used as an alternative energy source. Winds [...]

Hot Topic – Monitoring Wind Farm Construction 2017-09-07T13:50:05+00:00

Hot Topic- Ocean-Based Renewable Energy

Ocean-Based Renewable Energy The European Union (EU) has committed to producing 20% of its energy from renewable sources by 2020. This has led countries such as Sweden, Ireland, Germany, and Denmark to be pioneers in developing a variety of technologies to harness and deliver energy. Systems associated with winds, waves, and tides produce underwater noise, the effects [...]

Hot Topic- Ocean-Based Renewable Energy 2017-09-07T13:50:30+00:00