Tuesday, September 09, 2008

Tyee Steelhead Index to Sept09th

Here's the latest Tyee steelhead numbers to the 09th of Sept:
Sept.07: .73
Sept.08: 1.44
Sept.09: .72
Total to date: 177.58
For comparison, to the 6th of September: lowest on record: 33 (1957); mean all years: 97; highest on record: 247 (1998)

**NB: The regular caveat applies: The Tyee Test Fishery is a sockeye salmon test fishery; it is only calibrated for sockeye (Babine River Weir counts), although the DFO use data from all salmon species for management, as we do for steelhead. As such, Tyee catches are not standardized and therefore, comparing data between years or even individual days or gillnet sets is not valid in the strictest scientific sense. That said, the Tyee Test Fishery has been operated in the same manner since 1956 and a conventional gillnet vessel makes a 60 minute set with 200 fathoms (1200 feet) of net on every slack tide that occurs during daylight from early June to late August/early September.
Tyee information courtesy of Min. of Environment, Smithers

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