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FN0625-Salmon: Fraser River Sockeye Update - August 9 - Areas 11 to 29 - Update‏

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Fishery Notice - Fisheries and Oceans Canada

Subject: FN0625-Salmon: Fraser River Sockeye Update - August 9 - Areas 11 to 29 - Update

The Fraser River Panel met today to review stock assessment data on the Fraser
River sockeye runs, plan fisheries, and discuss sockeye migration conditions in
the Fraser River watershed. Test fishing catches over the past week indicate
that the migration of Fraser sockeye through both the northern and southern
approach routes to the Fraser River is generally flat. DNA analyses indicate
that the stock composition of Fraser sockeye in the marine approach areas has
not changed much since last Friday at about 30% Early Summer-run, 32% Summer-
run, and 38% Late-run sockeye. The last 3 day average diversion rate of Fraser
sockeye through Johnstone Strait is currently estimated to be approximately
37%. There continues to be a strong migration of sockeye observed at Hells
Gate. The estimated total commercial catch of Fraser sockeye to-date is 455,000
fish, while non-commercial catches (from test, First Nations FSC, Charter, and
recreational fisheries) total 238,000 fish. At the meeting today, the run size
estimate of 1.6 million Early Summer-run sockeye was unchanged. The 50% marine
migration timing of Early Summer-run sockeye through Area 20 is estimated to be
August 2. The estimated escapement of Early Summer-run sockeye past Mission
through August 8 is 785,000 fish. Summer-run sockeye abundance assessments are
ongoing. An estimate of their run size should be available later this week
after their expected peak migration through Area 20 has occurred. The estimated
escapement of Summer-run sockeye past Mission through August 8 is 532,000 fish.
DNA analyses of sockeye samples from Juan de Fuca and Johnstone Straits
indicate that Late Shuswap sockeye are the most abundant Late-run stock in the
marine approach areas, which is consistent with the pre-season forecast. A run
size assessment for Late-run sockeye should be available by about mid August
unless their peak marine migration timing is later than expected. Late-run
sockeye migratory behavior in terminal areas will be assessed over the next
several weeks in order to estimate the proportion of the run delaying in the
Strait of Georgia prior to entering the Fraser River. It is too early to
provide an assessment of the run size of Late-run sockeye, however, if they are
near their forecast level of abundance they will comprise most of the Fraser
sockeye migrating through the marine assessment areas in the coming weeks. At
the meeting today, the provisional run size estimate of 400,000 Harrison
sockeye was unchanged. The estimated escapement of Late-run sockeye past
Mission through August 8 is 508,000 fish. On August 8 the discharge of the
Fraser River at Hope was about 3,000 cms, which is 23% below average for this
date. The temperature of the Fraser River at Qualark Creek on August 8 was 18.9
0C, which is 1.2 0C above average for this date. Fraser River water
temperatures at Qualark Creek are forecast to increase to approximately 20 0C
by August 18. Water temperatures between approximately 19 0C and 20 0C can
adversely affect the upstream migration of Fraser sockeye and may cause en
route mortality of some of these fish. At the meeting today, after reviewing
environmental and stock assessment information, the management adjustment
factor for Early Summer-run sockeye was unchanged at 0.84. Management
adjustments are employed to help achieve spawning escapement targets for Fraser
River sockeye.

The following fisheries are planned:

The Area B seine fishery will open daily 0600 hrs to 2100 hrs Sunday, August 8
through Thursday, August 12 in portions of Management Area 12, 13 and 20.
Please see separate Fishery Notice for further details on this opening.

The Area D gill net fishery will open from 0800 hrs Wednesday, August 11 to
0800 hrs Thursday, August 12 in portions of Management Areas 11, 12 and 13 with
the exception of Roller Bay which closes at 1400 hrs on Thursday, August 12.
Please see separate Fishery Notice for further details on this opening.

The Area H troll fishery will open Sunday, August 8 at 0001 hrs until further
notice in portions of Management Areas 12, 13, 18 and 29. Please see separate
Fishery Notice for further details on this opening.

The Area E gillnet fishery will open Tuesday, August 10 from 1400 hrs to 1700
hrs in portions of Area 29 with 100 fathom net length restriction. Please see
separate Fishery Notice for further details on this opening.

Fraser River recreational fishing will open for sockeye retention upstream of
Mission bridge to Alexandra Bridge and in the Harrison River downstream of the
Highway 7 bridge to the Fraser River confluence in Region 2 on Monday, August
9th until further notice. Please see separate Fishery Notice for further
details on this opening.

First Nation fisheries vary by areas with opportunities in marine areas, the
Fraser River area; consult with local DFO offices for openings.

The next Fraser River Panel meeting is scheduled for Wednesday, August 11th. A
further update will be provided on this date.


FOR MORE INFORMATION:

Barry Rosenberger 250-851-4892

Fisheries and Oceans Canada Operations Center - FN0625
Sent August 9, 2010 at 16:39
Visit us on the Web at http://www.pac.dfo-mpo.gc.ca
 
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