7118 ‎(2)‎

• UCREFRP Catalog Number: 7118
• Author: Gatz, J. A., J. M. Loar and G. F. Cada
• Title: Effects of repeated electroshocking on instantaneous growth of trout
• USFW Year: 1986
• USFW - Doc Type: North American Journal of Fisheries Management
• Copyright Material: YES

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CHANGE 47
ornia landscape, Califor-
fish species now present
rnd these fishes are now
yrs. The native fishes are
where man's impact has
Joaquin River at Friant,
exist over the years, the
s to being dominated by
native fish species now
in aboriginal California
y white settlers. Among
the Klamath River, the
of the Sacramento-San
end humpback sucker of
auna are many but they
fishing.
:tle resemblance to the
and settlers. The once
med irrigation ditch and
:nd occasionally to the
'y are today vast grain
tole marsh dissected by
r farmland protected by
channels. Almost every
its flow. Thus, it is not
changes in California's
apes of habitat change,
t of (l) stream-channel
find lakes, (4) pollution,
streams ever since the
ally drastic alterations,
earch for tiny pieces of
Table 4
Changes in the fish fauna of Clear Lake, Lake County, based on information
from Jordan and Gilbert (1894), Coleman (1930), Lindquist, Deonier, and
Hancey (1943), Murphy (1951), Cook, Conners, and Moore (1964), and
Moyle and Li (unpublished data). A = abundant; C = common; R =rare;
P =present but status uncertain; N =not recorded but probably present;
R* =rare in lake but common in tributary streams
1894 1929 1939.41 1946-50 1961-63 1973
Native Species
Pacific lamprey P - - - - -
Rainbow trout C C - - - -
Clear Lake splittail A A A R R -
Sacramento blackfish A A A A A A
Hitch A A A C A A
Sacramento squawfish A A P R R* R*
Thicktail chub C C P - - -
Sacramento sucker A A P C R* R*
Threespine stickleback P - - - - -
Tule perch A N P N C C
Sacramento perch C A C C R R
Prickly sculpin C N P N C C
Introduced Species
Golden shiner - - - - C C
Carp A A A A A A
Mosquitofish
y - - C P A A
Mississippi silversides - - - - - A
Brown bullhead A A A A A A
Channel catfish - C N N C C
White catfish A N A A A A
Largemouth bass - C C C C C
Bluegill - A A A A A
Redear sunfish - - - - - R
Green sunfish - - P C C --C
Black crappie - A P A A A
White crappie - - - - A A
Total species 15 1? 18 17 20 21
Percent native 80 59 50 47 40 33
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