Fish Sniffer On Demand Digital Edition Issue 3801 Dec 22-Jan 4 | Page 17
Mokelumne River Fishing Regulations
River
Viewing
Salmon carcasses like these recycle nutrients into the riparian ecosystem
along the Mokelumne. The section of the river below the fish hatchery
opens to steelhead and trout fishing again on January 1, 2019.
Photo by DAN BACHER, Fish Sniffer Staff.
the fish in transferring from freshwater
to seawater.
Another major factor he cited is the
partnership they have developed with
the federal agencies, including the
Bureau of Reclamation and the U.S.
Fish and Wildlife Service to close the
Delta Cross Channel Gates to prevent
Mokelumne fish from straying into
other Central Valley rivers. “Last year
the gates were closed in late September
while this year they were closed in
early November,” he noted.
Before 1998 when the Mokelumne
River Setttlement Agreement went into
effect, the average run was 4,000 fish.
Since then, the run has averaged 9,541
fish per year.
As salmon returns on other Central
Valley streams, including the American
and upper section of the Sacramento,
have declined in recent years, the
Mokelumne’s contribution to the
Fish
Hatchery
Mokelumne River
Fish Ladder
Hatchery
Building
Fry in Troughs
Administration
Building
Mokelumne
Day Use
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Magee
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Entrance Plaza
Parking
Clements
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Improved Mokelumne Salmon
& Steelhead Return Strategies
Stronger Pulses – Pulse flows reached higher magnitudes compared to recent
years thanks to flood control waters released from Camanche Reservoir. These pulses
provide cues for salmon to move up into the river. Additional pulses provided by
reoperating Woodbridge Irrigation District Dam extended the period of pulses into
November.
Gate Closures – To prevent straying of Sacramento and Mokelumne River salmon,
CDFW coordinated closures of the Delta Cross Channel Gates on weekdays and
reopened for weekend recreation beginning in September.
Tagging Data – Using Coded Wire Tag data from returning fish, the agencies
measured the effectiveness of releasing fish on outgoing tides and limiting releases
to no more than two consecutive days from the same location to increase juvenile
salmon survival.
Barging – The agencies have transported juvenile salmon from the Mokelumne
River by barge and released them in the San Francisco Bay. Barging improves fish
survival through the Delta and may also help with imprinting for juvenile salmon to
re-trace their way to natal waters.
Transfer Diet – Juvenile salmon undergo an incredible physiological change when
moving from freshwater to saltwater. To ease the initial stress, a specialized feed
containing higher salt levels is fed to the juveniles in the weeks before the release.
Habitat Improvement – EBMUD and DFW have spent nearly two decades developing
and implementing a plan to improve spawning and rearing habitat in the river below
Camanche Dam.
To
Jackson
MOKELUMNE RIVER FISH HATCHERY
The Mokelumne River (San Joaquin Co if open from Camanche Dam to Highway 99
bridge is open from Jan. 1 through Mar. 31 with a limit of 1 hatchery trout or 1 hatchery
steelhead.
It reopens from Fourth Saturday in May through July 15 with a limit of 1 hatchery
trout or 1 hatchery steelhead.
Form July 16 through Oct. 15, the limit is 1 hatchery trout or hatchery steelhead and
Chinook salmon.
From the Highway 99 bridge to the Woodbridge Irrigation District Dam including
Lodi Lake, the season is from Jan. 1 through July 15 with a limit of 1 hatchery trout or
1 hatchery steelhead,
From July 16 through Dec. 31, the limit is 1 hatchery trout or hatchery steelhead and
2 Chinook salmon.
The section between the Woodbridge Irrigation District Dam and the Lower Sacra-
mento Road bridge is closed to all fishing all year.
The Mokelumne River and its tributary sloughs downstream of the Lower Sacra-
mento Road bridge and east of Highway 160 and north of Highway 12 from Jan. 1
through July 15 has a limit of1 hatchery trout or 1 hatchery steelhead.
From July 16 through Dec. 16, the limit is 1 hatchery trout or hatchery steelhead and
2 Chinook salmon.
From Dec. 17 through Dec. 31. The limit is 1 hatchery trout or 1 hatchery steelhead
17
Dec 21, 2018 - Jan 4, 2019
MAP FEATURE
VOL.38 • ISS. 1
Camanche Dam to Lodi Lake
San Joaquin County
Lane
e
n
ey La
Harn
To
Stockton
Fishing Notes
• Rainbow Trout and Steelhead fishing is best in the stretch from below the Mokelumne River Fish Hatchery to Clements. Trout can be caught throughout the
river from Clements to Lodi, but access can be difficult. Use nightcrawlers, Glo Bugs, Little Cleos and small spinners. Fly fishing is good for anglers using a
variety of nymphs or dry flies when hatches take place. Most of the trout are wild, though some hatchery fish are caught also.
Henderson
• The major run of King Salmon usually moves into this stretch of river when it is closed to all fishing. The river from Camanche Dam to Peltier Road is open
to 'Village
fishing from January 1 through March 31 and from the fourth Saturday in May through October 15, with a limit of 1 hatchery trout or steelhead. Expect
both salmon and steelhead runs to increase because of the modernized hatchery and habitat improvements on the river.
• Largemouth and Smallmouth Bass, Catfish and Bluegill can be found in the Mokelumne in the Lodi area, particularly during the spring and summer months.
salmon
industry
has grown
in signifi-
cance. The
Mokelumne
River salmon
population
contributed
approximately
20 percent of
the commer-
cial and 35
percent of the
recreational
catch off the
coast of Cali-
fornia in 2017,
according
to Tracy
Morales of EBMUD.
“The partnership between the East
Bay Municipal Utility District and
the California Department of Fish and
Wildlife is one characterized by inno-
vation, high-quality science and oper-
ations, and mutual respect,” confirmed
Kevin Shaffer, chief of CDFW’s
Fisheries Branch. “We’re seeing the
benefits now with a healthy river and
good returns of Chinook salmon to the
river and hatchery.”
“Fishermen are so grateful to the
fish hatchery staff – there is so much
innovation that leads to much higher
salmon returns,” said John McManus,
President of the Golden Gate Salmon
Association (GGSA). “One of the keys
is they get support from EBMUD, an
organization that has an openness to
trying new things. There is a recogni-
tion of hostile conditions downstream –
and they have to get around the hazards
to increase fish survival. They have a
very good staff that produces supper
babies – the fish are well taken care of
and strong.”
Setka said the ability to implement
management actions that lead to
positive outcomes in the Mokelumne
River is due to engagement from a
diverse group of stakeholders. Less
than a decade ago the Mokelumne
experienced one of the worse salmon
returns on record.
“The efforts of all stakeholders
within the Mokelumne have resulted
in a sustained recovery. In addition to
Lower Mokelumne River Partnership
member agencies CDFW, United States
Fish and Wildlife Service, National
Marine Fisheries Service and EBMUD,
stakeholders responsible for the overall
improvements in the river include Cali-
fornia Sportfishing Protection Alliance,
North San Joaquin Water Conservation
District, Woodbridge Irrigation District
and landowners along the river,”
according to EBMUD.
Anglers are currently gearing up
for the steelhead opener on the upper
section of the Mokelumne below the
hatchery. The season is from Jan. 1
through Mar. 31 and again from the
Fourth Saturday in May through July
15. The limit is one hatchery trout or
one hatchery steelhead.
Then from July 16 through October
15, the limit in this section of river is
two Chinook salmon and one hatchery
trout or hatchery steelhead.
For more information, call the
Mokelumne River Hatchery, (209)
759-3383.
This has been a big year for salmon spawning at the CDFW’s Mokelumne River Hatchery in
Clements.
Photo by DAN BACHER, Fish Sniffer Staff.