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Snake River Salmon on KUOW


The most prominent appeal in this discussion was whether we can move away from litigation and towards more collaborative processes to restore the wild populations of Columbia salmon and steelhead. The agreement between 3 tribes and federal agencies (the “Columbia Basin Accords”) may be a step in the right direction. However, many feel the 2008 [...]

NW salmon forecasts and fisheries dates


Here is an excerpt from yesterday’s WDFW announcement that describes the forecasts for many Columbia and Salish Sea salmon runs.  To Pat’s credit, there was a quick correction to a painful error (suggesting that adipose-clipped fish weren’t hatchery fish).  In conjunction with the process-map in the previous post, these dates should help us orca-advocates be [...]

A map for including killer whales in NW fisheries managment


Just happened upon this nice synopsis of how WDFW views the various processes by which fishing harvests are governed in the Pacific Northwest. For me, this helps clarify which processes we killer whale advocates could influence to bolster the number of salmon and other fish that are available to feed the southern residents. As usual, [...]

Loss of salmon smolts in BC and CA


An awareness seems to be dawning that salmon smolt mortality is increased by human activities — both in the nearshore environment and in river systems. A recent biological opinion regarding Sacramento salmon suggested that about 8% of the smolts entering the San Juaquin / Sacramento delta make it through to the ocean. This article mentions [...]

Strong spring chinook run on the Columbia


Here we are in mid-February, a couple weeks into the blackmouth opening in the Salish Sea, and WDFW is opening up recreational fishing for spring (winter?) Chinook running in the Columbia [see today's email announcement below].  This makes me wonder where the southern residents are at the moment and what the run timing looks like [...]

A toxics-based biological observing system (tBiOS) for PS


Lyndal Johnson, NWFSC Pre-spawn mortality of salmon is occurring in restored urban streams.  It is associated with urban development, road traffic, and storm water runoff, but concentrations of toxics aren’t high enough to account for the convulsions and lethargy.  We suspect a synergistic effect of multiple pollutants. PAHs affect embryo development in spawned herring eggs [...]

Persistent organic pollutants in killer whales


Persistent organic pollutants as chemical tracers for Puget Sound marine biota, Gina Ylitalo Chemical tracers can be used to determine geographic ranges.  Persistent organic pollutants (POPs) like PCBs and PDBEs in Salish Sea herring (3 yr old males collected ’99 and ’04) showed elevated levels in Puget Sound relative to Georgia Strait, though difference was [...]

Juvenile Salmon Use of Nearshore Habitats in San Juan County


Tina Wyllie-Echeverria Collaboration with Eric Beamer and Kurt Fresh (tows), and many students/volunteers 1950-2006, about 50 sites around the San Juans have been sampled and have found juvenile salmon.  Of 656km of SJI shoreline, 430km is rocky beach.  Tow nets (164 tows at 37 sites, monthly from Apr-Sep) caught juveniles of 5 species and 785k [...]

Fish Response to Shoreline Habitats


Jason Toft Comparing along-shore snorkel surveys between cobble beach, sand beach, rip rap, deep rip rap, and overwater structure. We see biggest difference when you have sub-tidal modifications. Gastric lavage of juvenile Chinook: insects dominate in shallow habitats, plankton/benthic dominate when shoreline is steep. At Olympic sculpture park, we looked at pocket beach and subtidal [...]

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 [...]