Hidden Falls Hatchery Hidden Falls Hatchery Fall 2013 Board Presentation
Transcript
Hidden Falls HatcheryHidden Falls Hatchery
Fall 2013 Board Presentation
Penstock Issue
Pipe Line Emerging Through Ice Spring 2013
More Pipeline Becomes Exposed as Lake Level Drops
High Spot Becomes Very Apparent
Damboards Opened at Lake to Draw Down Spillway
High Spot After Lake Drawn Down
Spring Release Challenges• Strong and early Chaetocerosblbloom
• As always, Humpback Whalescontinue to be an issueReleases postponed and fry held during high–Releases postponed and fry held during high activityA id d d t t t–Avoided need to tow most pens
• New predator at Takatz rearing site
Takatz Rearing Pen After a Trickle Release
Spring Release Highlights
• Chinook– Second largest size at release in history of program
• ChumChum– Largest size at release for 4.0 program
• Coho• Coho– Largest size at release since 1991P i l i i l h ld b hi h– Potential marine survival should be high; over 3,300 jacks through the rack