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Pastimes : Song Birds & Other Backyard Friends
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To: bela_ghoulashi who wrote (234)1/22/2001 4:44:01 PM
From: Puna  Read Replies (1) of 582
 
Thanks or the article on Humpback Whale songs being influenced by being blasted by sound waves. I would be too.

Odd how we humans need to do scientific studies to 'prove' the often obvious.
I should know because I have participated in many whale studies along the Canadian and Hawaiian coastlines over the past 25 years. Humpbacks, Grays & Orcas primarily.
My conclusion, they are mammals just like you & I and have very similar needs, wants and directive’s- socially as well as physically. The difference is our medium, language and evolution-and the fact that our 'directives' have all but decimated these mammals’ numbers, and are altering their habitat.
Sound in the sea is one area we have been researching to better access what the tolerances and effects for various species are.
Here in Hawaii, they have been studying the Male Humpbacks song for years, and still do not understand this unique and eloquent vocal expression.
Last year, and again now, we were trying to record two singing whales in the same area and to record any influence to their independent songs by each other’s or by another male or female entering the singer’s immediate area. This study continues.
Whales depend on sounds transmitted through water, human produced loud, sharp or continuous sounds in the frequency ranges used by them will of course influence the whales. What are the limits? That is the question. Each type of whale uses different frequencies for various purposes, so a complete study is far from complete. Just observing their reaction s to known sound sources helps.

Puna
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