[env-trinity] Mainstem Trinity River spawn survey update for November 13, 2015

[Rupert, Derek]

Hello All,

The US Fish and Wildlife Service along with the Yurok Tribe, California
Department of Fish and Wildlife, US Forest Service, and Hoopa Valley Tribe
have another weekly update for our Trinity River mainstem spawn survey
posted on the Arcata Fish and Wildlife Fisheries webpage.

Trinity River spawn survey update November 13, 2015.
<http://www.fws.gov/arcata/fisheries/projectUpdates/TRSpawningSurvey/2015/TrinityReddUpdate_2015_11_13.pdf>

This week our crews mapped 101 redds (1,793 total for the year) in the
Reaches from Lewiston Dam  to Pigeon Point, and Big Flat to Cedar Flat. The
graph below is clipped from our weekly report (limited to the river
upstream of Cedar Flat).


​
Although Chinook Salmon spawning is wrapping up in the Reaches upstream of
North Fork Trinity, we continue to see fish building redds downstream of
Big Flat.  Chinook Salmon in the lower portions of the Trinity often spawn
later in the year, than their upper stream counterparts.

Cheers,
Derek

-- 
Derek Rupert
Fish Biologist
US Fish and Wildlife Service
Weaverville, CA
Office 530.623.1805
Cell 570.419.2823
Derek_Rupert at fws.gov
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