301
Fish Yield (FY) of Sone Beel
Of the 70 ichthyospecies of Sone Beel (Table 20.6 ),
59 species under 39 genera belong to the primary
FW group, while 11 species under 10 genera
belong to the category of peripheral FW group
(Nichols 1928 ; Darlington 1957 ). On the other
hand, on the basis of Indian and extra-Indian territorial distribution (Motwani et al. 1962 ; Kar
1990 ), 28 ichthyospecies of Sone could signifi -
cantly be incorporated under two groups, namely,
(a) widely distributed species and (b) species of
northern India. Further, amongst the other species, one species, namely, Glyptothorax telchitta ,
was found to be a true hill stream form, while fi ve
species, namely, Botia dario, Lepidocephalichthys
guntea, Acanthocobitis botia, Somileptus gongota and Nangra nangra , were recorded as semitorrential forms (Dey 1973 ). Thirty-nine fi sh
species were found to belong to the plain water
group (Dey and Kar 1990 ).
A conservative survey conducted by NorthEastern Council (NEC) (Govt. of India) resulted
in the following informations: 172 fi sh species
belonging to 73 genera and 27 families have so
far been recorded from NE hill region. Of these,
33 representatives are quite common to IndoGangetic fi sh stock, 19 representatives are common with the fauna of the Eastern Himalayas
and 11 representatives are common with the
Myanmarese fauna. Twenty-three fi sh species
are said to be endemic in this region (NEC 2010 ).
Of the 70 ichthyospecies, 84.2 % belong to the
primary FW group, while the rest are of peripheral class. The annual fi sh yield from the Beel
was found to be 358.21 mt during 1979–1980
and 312.16 mt during 1980–1981 having an
annual average yield of 335.18 mt. Per hectare
fi sh yield was determined as 103.5 and 90.26 kg,
respectively, during the investigating years (Kar
1990 ). Subsequently, further studies revealed that
Table 20.6 Fish diversity of Sone Beel in Assam
1 . Pisodonophis boro
32 . Mystus species
63 . Glossogobius giuris
2 . Gudusia chapra
33 . M. tengara
64 . Anabas testudineus
3 . Hilsa (Tenualosa)ilisha
34 . M. vittatus
66 . Trichogaster fasciata
4 . Chitala chitala
35 . Sperata seenghala
67 . Macrognathus aral
5 . Notopterus notopterus
36 . Rita rita
68 . M. pancalus
6 . Amblypharyngodon mola
37 . Ompok bimaculatus
69 . Mastacembelus armatus
7 . Aspidoparia morar
38 . Wallago attu
70 . Tetraodon cutcutia
8 . Barilius bendelisis
39 . Ailia coila
9 . Catla catla
40 . Clupisoma species
10 . Cirrhinus mrigala
41 . C. garua
11 . C. reba
42 . Eutropiichthys vacha
12 . Cyprinus carpio
43 . Silonia silondia
13 . Devario devario
44 . Pangasius pangasius
14 . Esomus danricus
45 . Nangra nangra
15 . Labeo bata
46 . Glyptothorax telchitta
16 . L. calbasu
47 . Clarias batrachus
17 . L. gonius
48 . Heteropneustes fossilis
18 . L. nandina
49 . Chaca chaca
19 . L. rohita
50 . Xenentodon cancila
20 . Puntius chola
51 . Aplocheilus panchax
21 . P. conchonius
52 . Channa gachua
22 . P. sarana
53 . C. marulius
23 . P. ticto
54 . C. punctata
24 . Rasbora daniconius
55 . C. striata
25. Bengana elanga
56 . Monopterus cuchia
20.2 Wetlands of Northeast India (The Water Wealth of Northeast India)
Fish Yield (FY) of Sone Beel
Of the 70 ichthyospecies of Sone Beel (Table 20.6 ),
59 species under 39 genera belong to the primary
FW group, while 11 species under 10 genera
belong to the category of peripheral FW group
(Nichols 1928 ; Darlington 1957 ). On the other
hand, on the basis of Indian and extra-Indian territorial distribution (Motwani et al. 1962 ; Kar
1990 ), 28 ichthyospecies of Sone could signifi -
cantly be incorporated under two groups, namely,
(a) widely distributed species and (b) species of
northern India. Further, amongst the other species, one species, namely, Glyptothorax telchitta ,
was found to be a true hill stream form, while fi ve
species, namely, Botia dario, Lepidocephalichthys
guntea, Acanthocobitis botia, Somileptus gongota and Nangra nangra , were recorded as semitorrential forms (Dey 1973 ). Thirty-nine fi sh
species were found to belong to the plain water
group (Dey and Kar 1990 ).
A conservative survey conducted by NorthEastern Council (NEC) (Govt. of India) resulted
in the following informations: 172 fi sh species
belonging to 73 genera and 27 families have so
far been recorded from NE hill region. Of these,
33 representatives are quite common to IndoGangetic fi sh stock, 19 representatives are common with the fauna of the Eastern Himalayas
and 11 representatives are common with the
Myanmarese fauna. Twenty-three fi sh species
are said to be endemic in this region (NEC 2010 ).
Of the 70 ichthyospecies, 84.2 % belong to the
primary FW group, while the rest are of peripheral class. The annual fi sh yield from the Beel
was found to be 358.21 mt during 1979–1980
and 312.16 mt during 1980–1981 having an
annual average yield of 335.18 mt. Per hectare
fi sh yield was determined as 103.5 and 90.26 kg,
respectively, during the investigating years (Kar
1990 ). Subsequently, further studies revealed that
Table 20.6 Fish diversity of Sone Beel in Assam
1 . Pisodonophis boro
32 . Mystus species
63 . Glossogobius giuris
2 . Gudusia chapra
33 . M. tengara
64 . Anabas testudineus
3 . Hilsa (Tenualosa)ilisha
34 . M. vittatus
66 . Trichogaster fasciata
4 . Chitala chitala
35 . Sperata seenghala
67 . Macrognathus aral
5 . Notopterus notopterus
36 . Rita rita
68 . M. pancalus
6 . Amblypharyngodon mola
37 . Ompok bimaculatus
69 . Mastacembelus armatus
7 . Aspidoparia morar
38 . Wallago attu
70 . Tetraodon cutcutia
8 . Barilius bendelisis
39 . Ailia coila
9 . Catla catla
40 . Clupisoma species
10 . Cirrhinus mrigala
41 . C. garua
11 . C. reba
42 . Eutropiichthys vacha
12 . Cyprinus carpio
43 . Silonia silondia
13 . Devario devario
44 . Pangasius pangasius
14 . Esomus danricus
45 . Nangra nangra
15 . Labeo bata
46 . Glyptothorax telchitta
16 . L. calbasu
47 . Clarias batrachus
17 . L. gonius
48 . Heteropneustes fossilis
18 . L. nandina
49 . Chaca chaca
19 . L. rohita
50 . Xenentodon cancila
20 . Puntius chola
51 . Aplocheilus panchax
21 . P. conchonius
52 . Channa gachua
22 . P. sarana
53 . C. marulius
23 . P. ticto
54 . C. punctata
24 . Rasbora daniconius
55 . C. striata
25. Bengana elanga
56 . Monopterus cuchia
20.2 Wetlands of Northeast India (The Water Wealth of Northeast India)