A beel thicky infested with water hyacinth

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Table 6. contd. . . . . . pH 0rg.C Av. P Av.-N CPCO, Tuttun(%) g/kg mg/lrg fig Sand Silt Clay UJQml! Hollodunga Somrajan(S) Somrajan(N) Phutukabari Keshukhana Puwasaikia Tlnrukla Motapang Motabeel Udaipur Rampur Dlbruciarh Lomghor~ Mer Dih~ngerasuti gibraear Boka Borboka Dikhowmornai &c!l@ Gorormaj Borchala Golnanrt Sankar Nabeel 4.8 12.0 6.8 208 5.5 81 16 3 Goruchara 5.2 13.2 9.2 220 10.5 75 21 4 Galabeel 5.8 5.5 12.4 162 10.5 86 10 4 Moridisoi 7.4 6.0 5.0 174 5.5 90 6 4 DInncl Bodhisicha 5.0 29.1 16.5 340 13.5 73 20 7 Mailhata 5.0 12.7 21.4 234 18.0 91 5 4 Gathaia 5.3 11.4 15.7 210 15.3 90 5 5 -
Table 6. contd. . . ... pH &g.C Av. P Av. N CaCO, Texture fig mgkg mgkg gkg Sand Silt Clay Sonitaur Dighali 5.3 36.6 9.2 397 20,5 87 11 2 Kharoi 6.0 5.7 17.6 165 27.0 87 12 1 Kaloi Naaaon Samaguri Bameta Kapla Chotokapla Tabha Alpajan Nalbari Ghograjan Morasulkhowa 6.0 7.6 17.6 180 31.3 90 7 3 Soil of all the beels except that of Moridisoi (Colaghat) and Motapang (T~nsukla) were acidic in nature which 1s considered unfavourablc fbr good lish product~on as well as for microbial activity. Brahmaputra valley showed s11ghtIy h~ghcr mean so11 pH (5.3) than heels of three Barak valley districts (5.0). Reels of llpper Assam districts had the lowest mean soil pH followed by Central Assam and I.oucr Assam . It was observed that beels in the north bank of the Brahmaputra had hlgticr so11 reactton in comparison to beels in the South bank. \h ~de range of banatlon (3 4 39 0 gkg) was observed In the organlc crrhorl content ol 5011 This varlatlon IS marnly depemded on thc qurntlty of macrophytes present in the beels and their magn~tude of decomposit~on The mean vdlucs of sot1 organlc carbon lndlcated that beeis of the Brahmaputra valley were more product~vc than hose of the Bar& valley In respect of so11 organlc matter Beels In thc south bdnk of the Brahmaputra valley showed comparat~vcly h~gh mcrn value of so11 orgdnlc carbon than the lakes In the north bank Central Assam had h~yher averagc values followed by Upper Assam and Lower Assam
Page 1: ECOLOGY AND FISHERIES OF BEELS IN A
Page 4 and 5: Ecology and fisheries of beels in A
Page 6 and 7: Project participants V-V, Sugunan 8
Page 9 and 10: INTRODUCTION lndia has extensive fl
Page 12 and 13: Importance of beels If managed alon
Page 14 and 15: 6) The standing water (Ientic compo
Page 16 and 17: I) Ox-bow lakes : These are cut of
Page 18 and 19: operatton of fishing gear difficult
Page 20 and 21: Tabk 4. DhMbuUon of bcclr la tbe ri
Page 22: Table S ronfd. ... . .... /an& M~tr
Page 25 and 26: floodplains an flooded. Lakelike be
Page 27: heavily infested with aquatic veget
Page 33 and 34: Watcr Quality In floodplain wetland
Page 35 and 36: Temp. Trmrp. PH DO CQ, TA Hudnear S
Page 37 and 38: TDS ahride SiO, CI Mg Fc PO, NO, Dl
Page 39 and 40: Table 8. contd. TDS Chloride SiO, C
Page 41 and 42: Biotic communities The abundance an
Page 43: Dbhlct Tabk 10 Planktom In differen
Page 46 and 47: l rabh 10, conki eorc.rr.os T ~ W D
Page 48 and 49: Tnhle 10 cod Morlgaoa Mon Kamrup Dm
Page 50: oligochactea and insccto. Thc bee18
Page 53 and 54: However, Samrajan north in the dist
Page 55 and 56: A beel thicky infested with water h
Page 57 and 58: Fish yield potential Fish yield pot
Page 59 and 60: FISH AND FISHERIES Fish fauna Many
Page 61 and 62: Barpeta Area Deptb Dominant fbb (ha
Page 63 and 64: view of recmitmcnUautostocking in t
Page 65 and 66: I1 Fishing operations in beel
Page 67 and 68: 1. Liming in split dosea It regular
Page 69 and 70: whole operation is baaed on captive
Page 71 and 72: Community metabolism Community meta
Page 73 and 74: Fig. 5. Path- of enorgy flow Jn (Or
Page 75 and 76: stocLtagmtc~egmwthrmteof~speckrsttt
Page 77 and 78: Proper stocking and harvesting sckd
Page 79 and 80:
Ferrlisarion / Borrom raking Since
Page 81 and 82:
Flg. 8. Dlrgnmmatlc npnwnbSion of c
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A beel thicky infested with water hyacinth

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