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Monday, September 12, 2011

Bans on Shark Fin Sales

The last 12 months have seen a flurry of laws, regulations and industry actions to end the international trade in the age-old delicacy, including bans on shark fin sales in Hawaii, Oregon, Washington and parts of Canada. Last week, the California Senate also voted to ban the sale or possession of shark fins — a billion-dollar global trade that has led to the brutal deaths of tens of millions of sharks a year and resulted in many open-ocean shark species being threatened with extinction. The Bahamas and Honduras have prohibited shark fishing in the last two years.

NYT Environment

Monday, September 05, 2011

Endangered Right Whales Produce Louder Calls in Noisier Environments

Anthropogenic noise has been studied not only in terrestrial habitats, but also in aquatic environments, where it can disrupt communication of a number of organisms, including fish, crustaceans, dolphins, and whales. A recent study by collaborators at Penn State University, Woods Hole Oceanographic Institution, and Duke University has demonstrated, for the first time, that individual North Atlantic right whales (Eubalaena glacialis) adjust the amplitude of their calls in response to ambient noise levels.

Science 2.0

Friday, September 02, 2011

246B

Year - 2004
Tape - 246B
Date - Friday, Aug06
Time - 06:39
Annotations - 174
Whales - A30,A12,A36,A11,A35,A73,A24,A4 2,A43,A25,I15
Comments - Faint calls at beginning, boat noise increases. A30, A12, A36, and I15s, travel east in Johnston Strait, A1 and A5 calls. Echolocation and good calls at 06:57.
Link - http://orchive.cs.uvic.ca/recordings/show/11929