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Tuticorin Fisheries Harbour. The CPUE in respect
of Stolephorus spp. ranged from 3.5 to 21.5
kg (Table 3 and 4).
TABLE 3. Year-wise landing o/Stolephorus at Tuticorin Fisheries
Harbour caught with trawlnet
Year Effort Total
fish
catch (t)
1986-'87
1987-'88
1988-'89
1989-'90
1990-'91
1991-'92
Total
Average
15,795 4,066.7
14,362 5,232.5
19.814 5.959.5
29,096 4.055.5
26,732 1.187.5
24,280 15.352.5
13,0079 35,854.2
21,680 5975.7
Resource
group
(t)
55.8
166.2
677.6
550.6
575.5
214.4
2,240.1
373.35
Perce- CPUE
ntage (kg)
1.4
3.2
6.3
13.6
4.8
1.4
30.7
5.12
3.5
11.6
19.0
18.9
21.5
8.8
83.3
13.88
TABLE 4. Catch (in tonnes) and relative abundance (in percentage
in brackets) 0/Stolephorus spp. caught in trawlnet at
Tuticorin Fisheries Harbour
Year S.indicus S.bataviensis S. devisi Total
1986-'87
1987-'88
1988-'89
1989-'90
1990-'91
1991-'92
29,0 (52.0)
68.0 (40.9)
62.0 (16.4)
120.3 (20.9)
312.0 (56.7)
140.4 (65.5)
26.8 (48.0)
98.1(59.0)
179.8 (47.6)
455.2(79.1)
238.3 (43.3)
71.3 (33.3)
0.2(0.1)
135.9 (36.0)
2.6(1.2)
55.8 (2.8)
166.2 (8.6)
377.6(19.5)
550.6(28.4)
575.5 (29.7)
214.4(11.0)
Average 122.0(42.07) 178.2(51.7) 23.1(6.2) 323.3(16.7)
The landing of elasmobranchs showed an
increasing trend every year. More than 5 species
of sharks and 6 species of rays are landed by the
trawlers. Skates are also obtained in small quantities.
The estimated landing of elasmobranchs
ranged from 304.2 to 1.252.6 t. (Table 5) while
TABLE 5. Catch (in tonnes) species composition of sharks, rays and skates in the trawlnet at Tuticorin Fisheries Harbour
Species Year Average
Sharks
Carcharhinus sorrah
Rhizoprionodon actus
Scoliodon laticaudus
Sphyraena spp.
Loxodon macrorhinus
Other sharks
Total Catch
Rays
Himantura bleekeri
H. uamak
H. unbricata
Hypolophus sephan
Aetobatus narinari
A. Jlagellum
Dasyatis kuhlii
Rhinopterajavanica
Cymnura poecllura
Other rays
Total Catch
Skates
Rhynchobatus djiddensts
Rhina ancylostoma
Other skates
Total catch
Total elasmobranch catch
Total fish catch
Total units
1989-'90
7.8
11.4
4.1
2.3
2.4
8.8
36.8
88.4
31.3
8.7
24.4
25.2
16.2
26.3
11.7
7.3
18.1
257.7
6.1
3.0
0.4
9.5
304.0
8,643.3
31.764
1990-'91
22.1
27.2
4.2
3.1
-
6.0
62.6
74.1
35.2
3.3
28.3
20.0
22.7
14.1
7.1
1.8
2.6
209.4
21.4
15.2
1.9
38.5
310.5
11,871.5
26,732
1991-'92
15.3
18.6
3.7
4.6
-
0.9
43.1
72.4
58.4
3.8
27.3
30.2
38.2
22.7
5.5
6.0
31.7
296.2
15.7
4.7
0.6
21.0
360.3
15,434.2
24,280
19
1992-'93
22.8
28.6
7.5
11.9
1.1
2.5
74.4
71.0
60.5
2.2
48.7
3.1
6.3
29.5
-
-
45.7
267.1
8.3
10.5
7.0
25.8
367.2
14,831.9
31,069
1993-'94
31.5
16.1
15.4
9.5
2.6
17.7
92.8
117.0
110.5
3.9
12.5
12.7
22.0
54.0
Sl.l
16.4
55.4
425.5
15.2
6.3
1.6
23.1
541.1
17,278.6
32,107
1994-'95
28.6
84.1
27.2
12.7
5.6
26.7
184.9
290.3
317.6
18.1
25.7
111.3
49.0
68.6
11.9
21.5
74.3
988.3
31.1
46.2
3.1
80.4
1253.6
22.453.0
33,278
21.4
32.7
10.3
7.4
2.0
10.5
84.3
118.9
102.3
6.7
27.8
33.8
25.7
35.9
9.5
8.9
38.0
407.5
16.3
14.3
2.4
33.0
524.8
15,085.4
29.872