[LRflex] Re: IMG story: Kokanee Salmon
- From: David Young <dsy@xxxxxxxxxxxxxxx>
- To: leicareflex@xxxxxxxxxxxxx
- Date: Tue, 14 Oct 2008 06:18:38 -0700
Good Mornin', Doug!
An absolutely terrific series! :-)
Cheers!
David.
At 13/10/2008, you wrote:
Lake Tahoe's Kokanee Salmon live their entire lives in fresh water,
hatching in tributary streams and maturing in the lake itself,
returning to the streams to spawn. This is a small salmon, about
the size of a trout. Lake Tahoe's Taylor Creek is one of the best
places to witness the beginning and end of the salmon's life cycle:
http://www.wildlightphoto.com/fish/salmon/L1110272.jpg
The salmon pair up in shallow gravelly areas, where the female
excavates a redd (a place to lay the eggs) in the stream bottom by
using the suction from the upward thrust of her tail to dislodge
gravel and silt, where it is carried away by the current. The male
is brighter red; aside from fertilizing the eggs his role is to
defend the female's redd from intruders:
http://www.wildlightphoto.com/fish/salmon/L1110373.jpg
http://www.wildlightphoto.com/fish/salmon/L1110366.jpg
Among the dangers they face are the many Common Mergansers,
attracted by the fish concentrations:
http://www.wildlightphoto.com/fish/salmon/L1110265.jpg
The mergansers pursue the salmon under water and use their serrated
bills to hold the salmon before swallowing it whole:
http://www.wildlightphoto.com/fish/salmon/L1110292.jpg
http://www.wildlightphoto.com/fish/salmon/L1110261.jpg
http://www.wildlightphoto.com/fish/salmon/L1110262.jpg
However the pursuit isn't over just yet. Other mergansers are
interested in discussing rightful ownership of the meal. Apparently
the salmon have little say in the matter:
http://www.wildlightphoto.com/fish/salmon/L1110343.jpg
http://www.wildlightphoto.com/fish/salmon/L1110334.jpg
http://www.wildlightphoto.com/fish/salmon/L1110335.jpg
The most successful mergansers are those who can swallow the salmon
on the run.
Technical stuff: R8/DMR @ ISO 400, lens was either 180mm
APO-Elmarit-R or 560mm f/6.8 Telyt
All comments welcome.
Doug Herr
Birdman of Sacramento
http://www.wildlightphoto.com
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Logan Lake, CANADA
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