7006

• UCREFRP Catalog Number: 7006
• Author: Gustafson, E.
• Title: Early Development, Adult Sexual Dimorphism, and Fecundity of the Razorback Sucker,
• USFW Year: 1975
• Copyright Material: NO

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...'i.;i.c::.crs. .uaAC; {'IC):i::..Ve xyr'i;;.u~i'jc;n a.l'E:; ci.J..'=IV ;.:;.....tr'crlllg f.r'OJl genetic COiJ]-

petitioo witn ~ newly in~rouuc~u catostoillid species:

tentatively

la.elJ,t..ifiell by Dr. R. .8.. l'illler (Ullivbl'sity of Iviichigan) and Dr. W.

L. Hiilcl\:ley ( Ari Z0118. State Uii.iversi cy) as the Utah sucker,

.CatostoL1US aI'dens. Field data indica.te a minimUIil. 10% incidence of

nat~ral hybriaiza.~ion between x. texanus and C. ardens'in Lake.

l'luClave reservoir. The raYLlifications of this llew introduction and

its effect on the overall ecology and genetic stabllity of the Lake

i'iuilCl.Ve J.Yl'a.\lchell popu.lation dI'e yet un:-cnowll; alld further mOliitor1.Llg

ofi..il..i.s si Luat.io.u is stl'(wgly r'ecoDliG.d.i.(.ei.

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