Biodiversity of Three Backwaters in the South West Coast of India

Table 6

Karl Pearson correlation showing the significance (5%) by relating the number of fishes and nutrients of Kadinamkulam backwater.

Name of fish	Hydrogen sulfide	Ammonia nitrogen	Nitrite nitrogen	Phosphate phosphorus	Silicate silicon
Oreochromis mossambicus	0.18	0.41	−0.21	0.13	−0.51^*
Etroplus suratensis	0.21	0.07	0.09	0.06	0.16
Etroplus maculatus	−0.42	−0.06	−0.12	−0.54^*	−0.49
Terapon jarbua	−0.36	−0.07	0.02	−0.08	−0.13
Caranx sehfsciatis	−0.53^*	−0.27	−0.09	−0.31	0.00
Caranx ignobilis	−0.47	0.05	−0.38	−0.35	−0.08
Chanda ranga	−0.47	−0.47	−0.17	−0.10	0.20
Chanda nama	−0.51^*	−0.13	−0.11	−0.46	−0.49
Mugil cephalus	−0.40	−0.20	−0.12	0.05	0.15
Channa marulius	0.04	0.28	−0.10	−0.30	−0.49
Channa striatus	−0.58^*	0.23	−0.47	−0.54^*	−0.41
Megalops cyprinoides	−0.19	−0.43	0.19	0.19	0.33
Gerres filamentosus	−0.43	−0.45	0.49	−0.46	−0.20
Puntius filamentosus	−0.22	0.14	0.02	−0.34	−0.56^*
Anabas testudineus	0.04	0.03	−0.26	0.00	0.03
Mystus gulio	0.06	0.11	−0.13	0.28	0.21
Arius arius	0.18	0.39	0.10	−0.27	−0.31
Tachysurus subrostratus	−0.14	−0.28	0.57^*	−0.17	−0.23
Valamugil cunnesius	−0.51^*	−0.71^**	0.12	−0.12	0.34
Liza parsia	−0.46	−0.66^*	0.34	−0.31	0.07
Elops machnata	0.00	−0.28	−0.08	−0.04	0.16
Hyphorhampus improvis	−0.53^*	−0.48	−0.15	−0.43	0.07
Periophthalmus weberi	−0.64^*	−0.36	−0.14	−0.50^*	−0.16
Glossogobius giuris	−0.41	−0.62^*	0.12	−0.35	0.17
Anguilla bengalensis	−0.44	−0.28	0.16	−0.45	−0.34
Scylla serrata	−0.04	−0.33	−0.27	0.40	0.55^*
Penaeus monodon	−0.29	−0.18	−0.11	−0.42	0.11
Penaeus indicus	0.19	0.10	0.08	0.02	0.11
Metapenaeus brevicornis	−0.40	−0.68^*	0.44	−0.18	0.17
Metapenaeus dobsoni	−0.44	−0.67^*	0.21	−0.26	0.23

Significant, ^**highly significant.