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<br />..'~." ~~, ., . -4 .. _. .-.". -~
<br />'. . " ~ '.' ~.~
<br />
<br />(~~~i;e.~':-:-"'- .~
<br />""""~~':'":''' ~~...~ ~~.
<br />..: .,..~,J. ' \ \-.. ..-~:..
<br />., .. ... - .""" ~
<br />1, .~~. ~ /11;...... ", ~~r,~
<br />tL ~_.." ,~~ . ·
<br />f_--.. ... -- .' ,~.-'
<br />. .... . " ........ ".4 =" ~
<br />- " - - .....
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<br />
<br />Figure 29 Male {left) and female (right) loach mlnnow/chara/lro adornado, 62 and 57
<br />mm in tOlallenglh. respectl.....ely. Irem Aravalpa Creek. Arizona ThiS umque, bottom-
<br />dwelling mmnow IS listed as threatened
<br />
<br />anClem \\'hHl' Rl\"t'f JrJ.lna/o=t' 01 ('H[l'rn 1'\t\'.IJJ (we
<br />helow). Thl"~l' Ht' rd:'Hl\'dy lar~l.'. slln..r~' mlnOl)""'.
<br />(ommon]~' rJn.l.:1I1~ to 125 mm 1I)1l}.:. th.u .let' HIlUt-
<br />like In r.t:bJ\"iur .lnJ t'(ology Burh lnh.1hlt gun:t
<br />....arn tlf rools .lnd t"JJll'~ r.d\l\\ nfllt" .Ind (lIla. t'.H
<br />.lgu,Hl( lOSt'(l, Jnll. lHlwr IOvt"r[t:brau"s. and srawn In
<br />sprln~ and summer ~lak' hrt'edmc (o]ors art" mlls!!V
<br />scen as ydlowlsh or reddish IHJ.n~'t' plFmems at rill"
<br />oolses of the r.lIred fins
<br />The.> loa,h mlnno\\ (Fl~ ~91 IS the mllst ~t"tre(Jvt
<br />yet conspu:uously luloct.J minnow ~pt.u('s In w('stern
<br />.\:orrh Amt'cH..t ~Ialt-s bt'(omc h!lFtuly pl~m(:,nled In
<br />bceedin~ St',hIHl {'\l.lf(h throu~h SCI'H'mbt'rl. with
<br />colors r.1n"':'Jn~ lfl)m blood red to ordlL.lm tlr.1n~e un
<br />the lips. fins. .1Ot! bnJll:s Fern.des rt'rn.lln rd.U1H:h'
<br />Jrab, but dt'\'t.lop yellow plFmelHs on tbe t"im .,nlf
<br />body. ~lales aprt-J.! tt'rrLHHI,iJ .!OJ deiend nt'sts
<br />bencolch swnts on !lI'tles. TIll: ~pe(LeS IS sm.1l!. with .1
<br />large mJ.le r.1td~' t-xlt'edlOt-: 65 mrn lon.c. Ie !In's no
<br />mort" than two yt"ars, dlS.1rre.HlO~ tht thad summer
<br />after h.u,hm}:: Tht. h.tbuJ.t IS sp!:tlal IFI}::_'Ol.
<br />
<br />
<br />(llnslstlll.c. I)f !lfll!:s nil moct.' than 1') em deep o\'er
<br />jo:c.1\'e1 honums. and olt('n 10 HsuuaTlOn wnh dense
<br />ilt,J, 01 U)acSt', t"ibmenwus .llt:.te. Lift, IS spem on
<br />rht, burwm Slntt.' the air bladder is jo:r!:atly reduced
<br />,!OJ dlt'lf b{)J~' Jt'nsHY IS such thJ.t mlJwater
<br />SWlmmlO!; IS IJ.bll[(.d .\OJ seemln~I~' t.1kt.'s a ~reat
<br />..mount of enen.'\' ThIS !"ish feeds almost t'XclUS1\'c1v
<br />on maytl~' anJ bi.l,ktl~' IJ.rvae, in\'ettt'brate co- '
<br />IOtl.l.bH.ltS uf ItS rlflle habltaL
<br />Of all n.wn fish!:s In the Suurhwest, rhl' speckleJ
<br />dale I~ the m(ISI ~rt'l(;1tllJ;lrly \'.1f1ahle In morphology
<br />.Ind pl~mentatlon (Fig, ,11, .lS wdl ,IS 10 ecology_ It
<br />n'ln.lLIIS wIJespn'aJ throughout the Colorado River
<br />s~'stt"m, wher!:.1 speCIal klOd adaptt.J tor liie 10 canyons
<br />of tile upper river IS duphC;ltf"J In mher efOSI\'e
<br />Il.lbu.lts sUlh ,IS the S,IIT R,,-er Canyon of l'a5r,ct:nttJ.]
<br />Aflzona h-en the PUI.l RIVer. a sm.111 tflbur;!tr
<br />enu-rlng tht- ClJlllr.IJu upsrreaffi ftnffi ~latble C;lnplO,
<br />has .1 src"lal form dut IS dl)Oj.:ated. Jeplt:menteJ.
<br />WHh IMF:e lim .!OJ rt-"luted. cmbt.dded seales
<br />l f1,~ ~ 1. hlwer), Tht, PMI.1 RI\'t"f IS sand bottomed,
<br />
<br />
<br />Figure 30 left loach mmnow/ctJarallto aoomado habltal In [Jlfles of Aravalpa Creek,
<br />Arizona RighI TYPical paSlhonlOg response 10 SWift currents over milled gravellcObble
<br />substrate
<br />
<br />16
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