cifri annual report 2007- 2008 - Central Institute of Brackishwater ...

slltntton of the estuag. mouth and a weak ialin~t)
gradlcnt caused loucr response ofhllae mlgratlon into
Dev~ cstuur) evcn ~n monsoon Dec:caicd flow
{d~scharpe resuit~ng 111 reduced river plume ln~ght be
lllnltlng the adult hi'sa rcachlng thc csluary for
rcproducrion
RESERI'OIR ffSI/ERIES
hlultl-locution trial, in small reserruirs
Suvarna\athy (Karnataka) : The prlnclpal
morpl~onictr~c features arc- Lallludc I(Y, IY'.
Lungirudc iO'. 1'. ,\rea,tt FKI '490 57118. llaxt,mutri
depth.> X(Im.and Mcat>deptI, 1.251n 1 lhcrcicrvo!r
brcanic lbll In I)cccmberO07dr1e lonticll~\l ~nllou,
PhjsL,o-chrmk~ulpurumcrcn :'I lhc ranges of uenuua
paremetcri ucrc ~urfuce water lciuperarurc 25.6 tn
28.6 C, tr.miparclicy 04 In I h rn. pll 7 I-: h
alksl,n~ly 57-Oh ppln and lnrilc otmcuntl.allrel lill Y to
15:O pScm I'hc rdacriolr crl~ih~tcd Ihct.mal
slritlfication ul111 clloagradu d~arrihuuon nfuxygcn 111
August 2007 and lilnuq 21108 0,illj ~nlcgralcd
columngmaapt~~n.~p pruduct~un\rrlud Iioln 670 6tir
19125nyCm d
hintncuinrur (2nd ,M cuiii~rrii and tll;tpli la ncgllglblu
in cuntras: to uhsl li oh\cn'cd In man) Caurcr rive1
hrslil rcscn'olrsulKnmalat'~.
Kunjiraphura recer~uir ( Kerala ): HJI a u,ilul
spread arcr 01.11 5 lha The iarlou, ph!~~co-clrcm~ci~l
parametcrh lnvcst~gated dur~ng Iiionsiion and peal.
rnnnsoon seaions il,dlc:tlcd it< ol~golropliic loiioeni)
a~rd wllh nopollut~on.tl,civ~tcr~apr~it~~~c
llinric icr.n~,t,unirits : Th2 pl~~nkliin ocnijlj i.>rlcu
from 115X-6006 hoa I ('lllo:oph>ccrc lolloucil lh)
Duhm~dncc;tc don!lnatcd lhc phytop1;~nitnn
pnpulrl~on Among ~ni~pl.inktn~l, rotjlcr\ iiul
~nuinhcrcd othi.1 gruup5 11: ;111 rtw ~ni~lths. 'I lie y~ciii
IpTI!nq pri~duillort ~.III~CL ITOII, I 50 lnigc' 111 h~
'5 il\ngCn>. I h ' ,
Iblrrry: I lhc Iirh yti.ldtliroug!i liiu )caw Ih.lr dtoppi,c
1021.5 Lgli,i yr Pool y~uldrwy bc ;~:~r>l>utcd I !root
m.lnagcmcnl practice, ~nclud~np li;arri.cl ,ioil.~,g
sue and 1Icni1->. 1pet.1~5 COIIIPLIIIIIOII d11d I.~IJII!
l~ir\cstlnppr,ict~cc\
Fisltrq : The ;uvcragr tiah .ucd slock~np rate fol thc
year, 2004 to 2007 wa, high, 9l9 Uor lliiyrar '. A
total catch of39 5 I ues rccordcd dunnp hl;trch 2007
to iehn:sry 2008 This ~csulted I!, Indhrri tnhqor ciirp.
contl.hulmg as hjgh as 95";" la thu lotrl catchca ulth
the rcst rnnjnly hy t~iapla The mcdnCI'LII aai a high
of I2 3 kg. Thc liah ycld us\ a high of 80.6 Lg Iha .
Mqor carps do not develop neiur;il rccrultmml
populauo~> and lhc fishery is susra~tird lnallllr hj
stocking Co~~lribut~on of lnlnur catilih llkc O