cifri annual report 2007- 2008 - Central Institute of Brackishwater ...
cifri annual report 2007- 2008 - Central Institute of Brackishwater ...
cifri annual report 2007- 2008 - Central Institute of Brackishwater ...
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CIFRI ANNUAL REPORT <strong>2007</strong>- <strong>2008</strong><br />
.fossilis, Xcncntodorl i.(~ni-ila, Churlrli3 /ZOI(-~(I~~LY,<br />
M0c.r-ognntliris pr~nc-rllu.c., Cltoncii~ nunu, Ptrrltilis<br />
c-onc~lrorliu.~. .l.ro~~horr,P.vcrr(f(~nlhu,r,ris hnc.1ili.s) was<br />
collcctcd and documented.<br />
Fish catch data <strong>of</strong> 22 spccies apart from<br />
rnisccllnncous group was collecterl from River<br />
Brahniapiitr;~ at Ilznnkazar fish assembling centre.<br />
Ciuwahati during the pcriod. Total monthly fish catch<br />
at this centre rangcd fro111 7980 kg (.lunc) to 44 184 kg<br />
(August). Mr!jor <strong>annual</strong> contribution during the<br />
pcriod calne Srorii a small-sized C'yprinid species,<br />
A.spi(io/)clr-iu nromr ( 106245 kg) followed by stnall-<br />
sized catfish spccics, Aili~ c~)i1(1 (31431 kg),<br />
miscellaneous spccics (20554 kg), Cr~tlo c'atln ( 14465<br />
kg). 7: !li.rl~o( 12828 kg)and L, lwl~it(~ ( 12338 kg ). The<br />
catches <strong>of</strong> 1,. cj cct)<br />
The findings indicate thcrc is a perceptible sliifi in<br />
geographic distribution <strong>of</strong>'the fishes <strong>of</strong> river Ganga.<br />
Thc warn1 water fish species Glossogohiu.~ giuris,<br />
Puntitis tic-to, Xoncwtodon cancila, M~:rtus ittu tutu.^<br />
-<br />
carlicr available only in the middle strclcli ol' river<br />
Ganga arc now available in thc colder strctch <strong>of</strong> tlic<br />
river around Haridwar. 111 thc Haridwar strctch dur~ng<br />
the pcriod 1070-86 thc <strong>annual</strong> mean ~nitiii~li~til watcr<br />
ietnpcraturc was 12,') "C' ( 13°C'). whilc during the<br />
pcriod 1087-2003 it ~ncrcascd to 14.5"C'. a11 incrcnsc <strong>of</strong>'<br />
1 .S"C is thus cvident. ,As a rcsult the stretch oI'ri\,c*r<br />
Cianga r~round Haridwar hr~s becotllc n<br />
habitat for thcsc warm watcr fishes.<br />
congcnlal<br />
Elcv;~tcd tc~npcraturc range (0.37"C' 0.07"C') and<br />
alteration in the patten1 <strong>of</strong>'tnonsc~on lii~s hccn 21<br />
~il;!ior<br />
factor li)r shifting <strong>of</strong> the brecding pcriod <strong>of</strong>' Indian<br />
tnajor carps in acluacul t urc frotn Junc to March in list1<br />
hatclicrics <strong>of</strong> Wcst Ijcngal and C)riss;l in tlic last two<br />
dccadcs.<br />
Ex situ cxpcrimcnt with I,, I-ohiro lingcrlings li)r<br />
cvalunting the unit growth in weight pcr iinit rise in<br />
tcmpcr;lturc indicated that thc spccilic grnwth rntc 01'<br />
the fishcs in showing ii rising trend at 8.53('/0 bctwccll<br />
20°C and 34°C'. 'I'lic maximum SCiII 27.05"/0 was<br />
rccordcd at 34°C'. At 35°C' tlic SC;I< valucs clccrc::sccl<br />
by 30.5(%1 cotiip;lrcd to that 01'34°C' ant1 ind~catcd that a<br />
ternpcraturdbcyond 34°C' is dctriliicntal Ibr the list1<br />
growth.<br />
C:PP N 34: I mprovcd fislierics j I-otlu~li\~ity<br />
and nanagement in tropical rcscrvoirs. Thc<br />
multidisciplinary prc).ject ~ir~dcr C'CiIAR C'liallcngc<br />
progl-aninw on Watcr and 1:ood (C'PWI'), wa\ initiatcd<br />
in 2005 and is ;limed to increase productivity ol'watcr<br />
and provide sust;iinablc livclilioods to rural poor<br />
through irnprovcd fishcries n~an;ipctncnt. C'II:RI is<br />
operating in Indo-G;ingctic basin in which reservoir<br />
case studies have bccn sclccted in IJttar T'r;~~icsti<br />
(Pahuj) and Madhya Pradcsh (Dahod). Main<br />
objectives are to dcvclop, verify arid implement