AGAIN: NANFA-- native fish of northern California
Jay DeLong (thirdwind_at_att.net)
Fri, 8 Mar 2002 13:46:07 -0800
Below is Dan Logan's response to Chris' question about salvage:
From: Dan Logan
Sent: Friday, March 08, 2002 11:31 AM
Subject: Re: FW: NANFA-- native fish of northern California
> > Also, the big State water projects in the Delta region frequently
> > in fish necessitating salvage.
> I've seen this mentioned before. What is "salvage?" Is it stranded
> when dams are drawn down?
Salvage has many applications in fisheries. Sometimes fish need to
salvaged or rescued following dewatering events (dam building or
bridge building or repair, etc.) and sometimes following unforeseen
such as a chemical spill or dam failure or levee breaching. My
Andy Allison about collecting fish at the Delta pumping plants is a horse
a different color. I have attached two photographs. The first
the entrance to a large water diversion. In the background of
photograph, the viewer sees the Sacramento River/San Joaquin River
In the foreground of the photograph, the viewer sees the mega diversion
water heading toward southern California. I don't have an image
illustrates scale better, but you can take my word that the diversion
the amount of water entrained in
the diversion are large. At the headworks to the Clifton Court
there are a series of giant louvered screens to reduce the number of
that entrained into the diversion canal. At the screens, most of the
are shunted away from the diversion and returned to the Delta.
louvered screens are "leaky" and so some fish do get entrained. The
screen from a smaller diversion; one gets the idea that these diversions
screens are large.
As an aside, I have attached an interesting notice. A co-worker
recruiting volunteers to work on an invasive snail project in San
Bay. Please pass the notice on to the NANFA list.
I am looking for volunteers (approximately 24) to help with the survey of
invasive marine intertidal snail (Littorina saxatilis, the rough
in the East Bay (Emeryville boat launch to San Leandro Bay). The
with the Smithsonian and NOAA's Restoration Center. No experience
necessary (but always helpful) just a desire to learn and be part of
ever growing invasive species problem.
The surveys will help determine the geographic range and density of
Littorina saxatilis. Volunteers will learn how to conduct an
experiment, record data, and use a GPS. I am looking for volunteers
commit to a couple of days a month during the last low tide cycle from
to September. I predict no more than eight hours a month and dates
chosen to coincide with the weekend if possible. We hope to perform
initial survey at the end of March so please direct any interested
volunteers to contact me at
707-575-6081 or natalie.cosentino-manning_at_noaa.gov.
Thank you for you assistance.
Marine Ecologist/Restoration Specialist
National Marine Fisheries Service
Habitat Conservation Division/SWR
Damage Assessment and Restoration Program
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