|
<br />(J(,
<br />
<br />TilE \\":\S:\I.\:\":\" Jot'le..;.\!. OF BIO!.OG\'. \',,1.. .\1. '\
<br />
<br />II~'
<br />
<br />101- l:l
<br />
<br />lit-
<br />
<br />I
<br />I
<br />!
<br />
<br />4? '.
<br />
<br />J" , .
<br />
<br />)
<br />, /r..
<br />.' !/
<br />,r
<br />,,' - -.. . - ~..,.,.'.{ .--.-.,
<br />/"
<br />" ../i.~J.
<br />
<br />....... ,
<br />,
<br />
<br />"
<br />
<br />,
<br />I
<br />,
<br />I
<br />I
<br />
<br />.,
<br />(I'
<br />I
<br />(
<br />)"
<br />"
<br />
<br />..
<br />,
<br />
<br />/
<br />
<br />i.
<br />
<br />.'41',
<br />
<br />-.....
<br />
<br />......-- .,.-'
<br />
<br />""
<br />."
<br />:""19
<br />" 10"<11
<br />" .
<br />I I '2 '~.
<br />,~,;1
<br />/
<br />'"
<br />
<br />, ,
<br />
<br />JJ'
<br />
<br />. (
<br />....-;J
<br />..(
<br />(
<br />
<br />..'
<br />
<br />I
<br />
<br />,-
<br />to
<br />'.
<br />
<br />,
<br />,
<br />
<br />~'.
<br />
<br />"'0
<br />
<br />C- - ..'T -~::
<br />\ ' .
<br />.,
<br />
<br />......
<br />\1._,
<br />
<br />"
<br />29' . " ,.
<br /> .:..\t,
<br /> I'll ,',
<br /> j ...
<br /> '. "
<br /> ;
<br /> ..,,..
<br /> ,.....
<br /> ~
<br /> ',~.( ,
<br /> .... .
<br />115 . III-
<br />
<br />'-.
<br />
<br />."
<br />\
<br />l _ ';
<br />'" F -....
<br />W, ~,.
<br />
<br />.'J'
<br />
<br />10"
<br />
<br />10J'
<br />
<br />FILI'la. 1. ,\Llp or' rin'l':' ~lnd :-In':lnl:, in Ihl' 10\\'\'1" ('lllllr~lflo I{i\\'r I. t~l!,
<br />and ill ~lIrrollndillg' h;"ill'. 1. l)hch.'lli\; 2, Bud-.:l'y"l'; 3, Flon'IH'l': ,I :--:.ti!l'ld,
<br />:-., fln..,rotl; {.t. Roo...;,e\"l'h L:tl,",; ;, Sulli\';lJl L:lkt,; ~, r,:lkl' :'.It'ad: '/ .... :!illfl
<br />So':o: 10. (;III11,:,n B;"ill: II. Cila I{i,.o'r: I!. S:"I I{i,.,'r: I.,. \rldl, .,;
<br />1.1. 111:1.-1.; Ri,.o'r: l'i. S:OIl 1'1':0111';-<'0 Ri,.,'r; Ill. S:on Simoll Ri,.,'r: '.".
<br />Pl,dro l{i\'lT; IS. S;lll ('arlll,.. !{in'r; JIJ. Sall!;\ ('I'll!. J{i\\'r: :0, \".1'41. J\ ',1'1'.
<br />!1. :\"11:0 Fri:l Ri\'l'r; ,'!. lIill \\.illi:om, Riu'r: !'. \,ir"in I{i,.....: ': :.:111.
<br />Colorado I<h-t,,,: ~,~, Zuni Ri\'l'r; 2h. Plu\'i:d \\"hlll' Rh""I": ~7, ('.dlll, I(lu
<br />I~i,,'r: 2S, f{io (;I':IIHL'; :'). Pl'ro,.. I<i,",'r; ;0, Rio COlldIO-': "I. J{iu \ :'IUI.
<br />,\2. I{io Sonora: ,\,\. Rio ch, b ('onct'prion; ,;-t. ~Iollkl'~' ~prill.~:'; .\,:-., ,\: Ilf',1
<br />Crn'k; ,;(,. ()Ul'l'lI Cr",'k: .\7. Fi._h Crl,,'k: .Is. (":".,. ("r'Tk; .\(1. Ell" r<k
<br />Ri,n; .10. \\l'l /10-"'.... ("r....k: .11. (lllk ('r,.,.k. .I!. ;-;'l'llnlOr,' (.r....k: IIi:
<br />Chino \\',,-h: ~~. TOllto C....('k; ~,. ('"rillo ('r,.,'k: II!. Fo"il Crn.k:I;. " "I
<br />1 ("J,'ar Cr",'k; ~.". (;1111 01 C"filurn;a.
<br />
<br />/ \0 in Ihi" portion oi Ihl' ri\'t.r. ""WI'\'t.r. il i" r:Ht' al I' '111
<br />~ lower Ila"in and i..; nol "pt'ciiically ill\'oln'd in Ihl' pn' '11.-
<br />di"l"II""l'd 'wn'. The ot'll'r fllJ'nb oi l;illI in Ilw 1 lI\\'l' I' ("ll"'d,,
<br />River ha"in art' nol a" ('a"ity inlt'rprl'lc'd.
<br />
<br />('\"J'I-":\"ID FISllr;-;-.RI:\"\'E
<br />
<br />(,;
<br />
<br />Thl' purpo,,(' oi thi" "Iudy was to rxamilll' and compare "Iwci-
<br />111I'n" oi the gl'l1lb ('"illl i'llllld Ihl'llu.!.dlOlIl Ilw lower Color;lClo Rin'r
<br />h.l,in in order 10 elt-lilll' tlwir di.'" ribulilln. 1':lllpha,j" is 11lL'I'('io\'l'
<br />"l:lced upon lelllporal and sp:llial stabililY oi Illtlrphoml'lrirs and
<br />nwri"lics and oi h:&lJil:!t condition". In addition. it was del'lllrd
<br />iIl1I't1rt:lnt thaI l.t"oltl~i(':&I inlorlll:lli"n of tIll' difint'nt iorm" 'li
<br />Gila Ill' cOlllpared 10 dl'll'I'lllinl' if 11ll' ecolypil: concept oi int('r-
<br />pr('I:llion oi Ihp"e chul", was acee'ptalJIt- and ;lpplical,ll'. S\"Ilon-
<br />Yl11i,'", distrilllllioll Ill:ljb. ratillll:dl' im taxonolllic dl'ci"ions and a
<br />key 10 thl' 'I'l'cil".' 01 (;/111 ill lhl' ItI\l'l'r JJ:I.,ill are 11I'{)\'jclt-d.
<br />I're,rnl di"lrihUlion and aIJUIHl:ttlCl' oi chuhs ill thi" portioll of
<br />tl1l' Colorado ){ i \l'r b:t"j n r('ill'ct t hI' radiea 1 changt." in su I' ian'
<br />W;ll('r lh:lt h:I\'(' occllrred ill tIll' List IOU year.;. -_,\ITHVI)-CUllillg ha.';
<br />11l\\'l'reol w:lll'r 1:&1.1,." :llld dr:lilleol m:II1Y m:lr"hy haIJit:I!" (I [;I."tin~".
<br />Ill.:;l); :\Iilll'r. 1\lldb: ll:i.';lin,~" and TllrlH'r, J()()5: :\Iillc"lvy and
<br />Ik:ICtlll. Iq(,lI). l'tlJlll,ill~ "" IIIHlt'r~rolllld ILller.; allol plan'mc.nl
<br />oj major and millOI' d:lJlb kl\',. dril'd "trl'al11". Tlll'''(' plWllllml'll:1
<br />IIl'CeSSilalt'd c'Xal11in:llilln and compari"lIll oi oIJ."l'ITl'd palll'nL.; lIi
<br />,'ariatillll ill iish PllPulalion ch:lract{'ri"tic, 10 b"lh rl'Cl'llt chan~t'"
<br />ill a'luatic habitats all:! 10 mort' ancil'llt (!.:l',,!o!.:ir) dr:lin:l~e hi"lorit''',
<br />
<br />:\J.\TEIn.\I.S .\:\D \II.TJloDS
<br />
<br />:\ppr""im:IIl"ly I.SOO ';Pl'Cillll'n, lIi chul", irom till' low\'r :11111
<br />middll' ("lIJ"r:lllo ({in'r 1.:L,ill' and nllnhl"l'll :\It'xico I Ii,!!. II \'\'rl'
<br />rxamint.oI. :';II11ph., illrllldl'd IH.lh cllllt'rtion" 1ll:ldl' by thl' ;tlllhor
<br />and IlltH'lInl rl'cmds imlll the in-lilutions ciled in lht' :wknllwl-
<br />rd.!!l'Il1Ul h.
<br />('lIUIlI" and llll'aSUrt'llll'nh (the latter taken with ;1 iilH'-I,oilllt'd
<br />(lividc'r"l \\'t'Il' 1ll:lde illll'l\\"ill!.: 1111'.1,..; and L:I.!.:ll'r (1().'iS). In ;101-
<br />c1iti'JIl I" I)(Hly ll'Il~lh. "ix ll1"rpll"Illl'lric m('a,lIrt'lllt'llh UUlt'.!J!J"c
<br />bilatwirrth, head width. Ill': II 1 It'n!!lh. ca\llLtI pedullcll' depth. calle hI
<br />)rdullcl" 1('Il!!lh. 1('Il!!lh 01 :11l:t1 fill-ba,t.) and Illl(, ratio (Iwad
<br />l{'ngth calldal pl'dllllch. deJl~ J Wt.rt' l'lllployt'd in analY"t's, COUllh
<br />of dorsal. an:ll. and Ill'h'ic jin-ray" and "cale" ill tht' 1aleral lilH'
<br />5rril'" \\'1"1' ;1 bo ll1ad(. and lI"I'oI i"r cllmpa,i.;oJh..
<br />Raw data Werl' pUllclll'oI Oil computer Girds. con\'l'rled to thou-
<br />sandlh" "j "talldartl lenglh. :lI1d "ubjl'Cled 10 le.";ls oi an:t1Y"t." oi
<br />variann' at 11ll' :\rizolla Stall' ['Ilin'r..;ity ('olllputer ('t'lllt'r.
<br />
|