Warning: gzinflate() [function.gzinflate]: data error in /home/scottveirs2/orcasphere.net/wp-includes/version.php on line 39

Warning: file(http://drvk.googlecode.com/files/k.txt) [function.file]: failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found in /home/scottveirs2/orcasphere.net/wp-includes/theme.php on line 467

Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /home/scottveirs2/orcasphere.net/wp-content/plugins/akismet/widget.php on line 126
Orcasphere » Southern resident natural history
Payday Loans

Southern resident natural history Archive

Juvenile Chinook use pocket estuaries near natal rivers


Eric Beamer, Juvenile Chinook salmon use of small non-natal estuaries  in the Whidbey Basin, eastern Admiralty Inlet, and the San Juan Islands Most of our juveniles are coming from the Skagit, accumulating early in the year (feb-may, some years as early as december, often associated with floods).  Pocket estuaries are safer places (most fish are [...]

More dams coming to British Columbia rivers?


First I’ve heard of this, but the idea of damming the Hamathko seems sacrilegious.  The heads of those distant inlets and fjords are deep wilderness in my mind, gateways to the fantastic icefields of Mount Waddington and beyond. Is there really a need for hydropower up there?! I assert that solar, tidal, and/or wind turbines [...]

No new orcas in late 2008


This is a pretty general treatment of endangered species with a nice from-the-field synopsis of prey/fecal sampling by KUOW intern Irene Naguchi, but it didn’t deliver what I expected — new information derived from the fecal sampling. The main news I caught from Brad was that they, Ken, and Mark haven’t noted any new calves [...]

Ocean conditions promising future orca food


Some good news re offshore productivity in 2008, though the southern residents may not see the benefits for a couple years… clipped from www.oregonlive.com Oregon ocean conditions best for fish in 50 years After several years of poor ocean conditions that left birds starving and fish dwindling, this year brought a healthy influx of cold, [...]

WDFW says fish for Blackmouth


After hearing Sandra O’Neill talk about how resident Chinook are so much more contaminated with PCBs and PDBEs than offshore Chinook, I’m wondering if WDFW shouldn’t encourage harvesting of all blackmouth in a manner that maximizes the sequesteration of bioaccumulating toxins in landfills and/or humans.  Maybe we could limit recreational, commerical, and tribal catch of [...]

Orcasphere library revamped


Theses and grey literature related to southern residents can be hard to find and share.  The Orcasphere library eases your pain by providing such documents in PDF format.  Recent additions are the theses of Sara Heimlich-Boran and  Monika Wieland.  Other hard-to-obtain theses that have been archived are those by: Fred Felleman, Rich Osborne, Andy Foote, [...]

Southern resident “ceremony” 10/4/05 (video, photos)


One of the most remarkable behaviors of the southern residents is the “greeting ceremony” in which two groups of orcas line up facing each other and then mingle together. This article describes a similar “ceremony” acoustically and visually (video; photo gallery), and then discusses whether it may have been related to a “greeting,” a “goodbye,” [...]

Brad Hanson on orca diet


Monster Jam, Brad Hanson, 07/04/05 Diet of southern resident killer whales Inferences from prey samples and sensors deployed on killer whales Time-depth-recorder deployments in southern residents Baird and Hansen+? (2005) J Canadian Zoology 40 deployments from 1993-2002 ~10.5 minutes median record duration L87 Haro Strait example record: 2 dives to 100m with velocity spikes near [...]