Transcript White Bass Morone chrysops

White Bass
Morone chrysops
Identification
• Laterally compressed
• Color – blue/gray to silvery
• Incomplete black lines or stripes run horizontally
• White belly
• Double dorsal fine
– Spiny in front, 9 spines
– Soft rayed in back
• 1-3 pounds
Distribution
• Native to the central U.S. west of the
Appalachians
– Including the Great lakes, Ohio and
Mississippi River valleys
• Found throughout the state in medium to
large rivers
• Most of Iowa’s larger lakes and Reservoirs
Habitat
• Open water
– Often found roaming large open waters in
large schools
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Ideal temp 65-75 degrees F
Clear water
Firm bottom
Less than 30 feet deep
Diet
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Small fish
Gizzard shad
Threadfin shad
Larger insects
Juveniles feed on small invertebrates
Reproduction
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Spawn in late April and May
Migrate up tributary streams
Females broadcast eggs in open water
Fertilized by males in the open water
Eggs hatch in two weeks
Conservation Status
• Common to Iowa waters
• State record 3 pounds 14 ounces from
West Okoboji
• Population overall is stable
• High or no bag limits in most waters
– Mississippi River bag limit is 25 per day
– No bag limit in other waters of the state
Economic and Recreational
Importance
• 5th most preferred species among Texas
anglers
• Popular sport fish in Iowa
– Fight hard
– Easy to catch
– Taste good
Ecological Importance
• Important predator
• Juveniles are often preyed upon by larger
white bass and other predators
References
• http://www.tpwd.state.tx.us/fish/infish/speci
es/wtb/wtb.htm Nov. 5 2004
• http://www.iowadnr.com/fish/iafish/whbcard.htm Nov. 5 2004
• http://www.dnr.state.oh.us/wildlife/Fishing/
aquanotes-fishid/whtebass.htm Nov. 5
2004
Striped Bass x white bass hybrid
(Morone chrysops x Morone
chrysops hybrid)
by: Matt Hangsleben
Identification:deep flat body, small head and
distinct back arch of white bass; dark gray or blue
silvery body and thick dark longitudinal body stripes
of ocean striped bass.
Wiper
White Bass
2 tongue patches
Stripes distinct & broken
Seldom exceeds 10 lbs
1st stripe below lateral line
line
Complete
tongue patch
stripes often faint
seldom exceeds 3 lbs
1st stripe below lateral
not distinct or complete
Striped Bass x white bass hybrid
(Morone chrysops x Morone
chrysops hybrid)
Distribution:Pool 14 of Mississippi River, Saylorville
Reservoir and Des Moines River, Red Rock, Big Creek
Habitat: slow moving streams, large reservoirs, lakes,
ponds, pelagic
Diet:gizzard shad,
silversides, sunfish, insects,
zooplankton and crustaceans
Reproduction: temps
15-20 C, 160,000 eggs per lb,
males 2 yrs, female 3 yrs
Striped Bass x white bass hybrid
(Morone chrysops x Morone
chrysops hybrid)
Conservation Status: Abundant, stocked, not
endangered
Economic/ Recreational: Sport fish, 4 aquaculture
producers in Iowa, replacing striped bass in food fish industry
Iowa DNR
Ecological Importance:
Shad control
Other: 18 pounds, 15 ounces,
feed in schools
References
Iowa Department of Natural Resources. 1994. Iowa DNR Fish and Fishing
Available at http://www.iowadnr.com/fish/iafish/iafish.html. August 2004
Hodson, R.G. Hybrid striped bass biology and life history. Southern Regional
Aquaculture Center. Available at
http://aquanic.org/publicat/usda_rac/efs/srac/300fs.pdf. July 1989
Hodson, R.G. and M. Hayes. Hybrid striped bass pond production and foodfish.
Southern Regional Aquaculture Center. Available at
http://aquanic.org/publicat/usda_rac/efs/srac/303fs.pdf. July 1989.
Alabama Department of Natural Resources. 2004. Fishing. Available at
http://www.dcnr.state.al.us/fishing/freshwater/fish/basstemperate/hybrid.cfm