Monthly Archives: December 2009

Communication signals threaten marine habitat

Posted on December 13, 2009 by Michael Stocker

Back in the mid 1970’s Physical Oceanographer Walter Munk was evaluating the acoustical transmission characteristics of the ocean “sound channel” – an isothermal layer in the deep ocean that baleen whales use for long distance communication. His visionary work in … Continue reading →

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Posted in Noise Pollution, Public Policy, Strandings | Tagged , , , , | Leave a comment

The economies of gratitude….

Posted on December 12, 2009 by Michael Stocker

An November 2009 article in Nature looks at non-kin cooperation models in animal societies. It examines reciprocity, mutualism, and manipulation in economic terms – with future expectations, biological expense, and cheating included in some of the trade values. The overarching … Continue reading →

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Posted in Ocean Life | Tagged , | 1 Comment

The Neutrino and the Whale

Posted on December 12, 2009 by Michael Stocker

A nicely written article in the Dec. 3 2009 issue  Nature reveals how a how a neutrino detection experiment conducted in the Mediterranean Sea by nuclear physicists actually uncovered an abundance of sperm whales. The experiment involved placing hydrophones down … Continue reading →

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Posted in Noise Pollution, Ocean Life | Tagged , , | 1 Comment