I spent last week in San Diego attending a workshop sponsored by the Bureau of Ocean Energy Management (BOEM) on the impacts of human generated noise on marine fish and invertebrates. Having watched the field of ocean noise impacts roll…
Month: March 2012
Follow-up on the Arctic Five Year Oil and Gas exploration plan
A few weeks back we asked you all to sign on to a petition addressed to NOAA chief Dr. Jane Lubchenko expressing concerns about the rampant expansion of Arctic oil and gas exploration and production (E&P). Thanks to your participation…
Tracking walrus’ movement using only one ear
A recent paper was published by marine research firm JASCO on localizing walruses using a single hydrophone. The technique they have refined is detailed in the article and involves assessing “multipath signals” – echoes from the sea surface and seafloor…