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Cat
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Re: River dolphin physiology information [Re: Klondike]
      #131589 - 12/05/05 12:33 PM

I knew that marine dolphins got most of their water metabolically as you say, fintrainer. And what you say about freshwater dolphins makes sense. But then, what Klondike says makes sense as well.

Perhaps because river dolphins have had a long time to adapt to a freshwater environment, they have drinking behavior. Or as Klondike suggested, can inherently tell the difference between fresh and salt water.

Does anyone know if dolphins have renal portal systems?

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Cat
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Re: River dolphin physiology information [Re: Cat]
      #131591 - 12/06/05 02:14 PM

Also! Does anyone have any photos of dolphin kidneys (either marine or freshwater)?

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KasatkaAdministrator
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Re: River dolphin physiology information [Re: Cat]
      #131603 - 12/08/05 12:59 PM

I have an article that discusses cetacean kidneys and another that discusses the endocrine system... want me to post it? There's another that mentions observations of marine mammals drinking sea water as well. (Some while fasting, others not)

It only has pictures of sea otter kidneys though.

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~ Kim


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Cat
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Re: River dolphin physiology information [Re: Kasatka]
      #131604 - 12/08/05 01:55 PM

I'd love to see it if you have time to send/post it! Thanks Kim

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KasatkaAdministrator
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Re: River dolphin physiology information [Re: Cat]
      #131607 - 12/09/05 12:00 AM

The book is too thick for my scanner (I have it on a shelf and don't have anything to support the weight of it, and thus it would slide right off the scanner) so I took pictures. They're a bit blurry because I didn't do a good job of holding it level.

http://www.kasatka.com/random/articles/kidney1.jpg
http://www.kasatka.com/random/articles/kidney2.jpg
http://www.kasatka.com/random/articles/kidney3.jpg
http://www.kasatka.com/random/articles/kidney4.jpg

Let me know if you have trouble reading anything. I'll try to get the drinking part up, but I'm going to be away most of the weekend, so I dunno.

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~ Kim


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Cat
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Re: River dolphin physiology information [Re: Kasatka]
      #131612 - 12/09/05 12:14 PM

What book is this from?

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KasatkaAdministrator
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Re: River dolphin physiology information [Re: Cat]
      #131613 - 12/09/05 12:25 PM

Encyclopedia of Marine Mammals. It's a huge book. Worth it though.

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~ Kim


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Klondike
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Re: River dolphin physiology information [Re: Cat]
      #131671 - 12/13/05 09:41 AM

Quote:

Also! Does anyone have any photos of dolphin kidneys (either marine or freshwater)?




Harbour porpoise kidneys
Taken from a book about Harbour porpoises by Gerhard Schulze.
Foto copyright: H. Schroeder


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