Biodiversity of Three Backwaters in the South West Coast of India

Table 5

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

Name of fish	Temperature	pH	Salinity	Alkalinity	Dissolved oxygen
Oreochromis mossambicus	−0.12	0.42	0.17	0.14	−0.37
Etroplus suratensis	0.04	0.17	0.34	−0.28	−0.28
Etroplus maculatus	−0.74^**	−0.04	−0.21	0.06	0.42
Terapon jarbua	−0.58^*	−0.46	−0.65^*	−0.31	0.48
Caranx sehfsciatis	−0.63^*	−0.41	−0.62^*	−0.35	0.63^*
Caranx ignobilus	−0.67^*	−0.20	−0.40	−0.61^*	0.65^*
Chanda ranga	−0.01	0.60^*	−0.53^*	0.29	0.06
Chanda nama	−0.57^*	0.10	−0.47	0.35	0.37
Mugil cephalus	−0.03	0.48	−0.46	0.09	−0.04
Channa marulius	−0.51^*	−0.02	0.25	−0.18	0.09
Channa striatus	−0.35	−0.06	−0.31	0.38	0.65^*
Megalops cyprinoides	0.04	0.26	−0.34	0.05	−0.29
Gerrus filamentosus	−0.49^*	−0.42	−0.30	0.45	0.49
Puntius filamentosus	−0.18	0.32	0.27	0.75^**	−0.08
Anabas testudineus	−0.26	0.32	0.07	−0.47	−0.06
Mystus gulio	0.15	0.32	0.01	−0.21	−0.40
Arius arius	−0.45	−0.38	0.46	−0.41	0.21
Tachysurus subostratus	−0.28	−0.10	0.16	0.45	−0.04
Valamugil cunnaecius	−0.03	0.06	−0.70^**	0.36	0.25
Liza parsia	−0.19	−0.26	−0.52^*	0.55^*	0.41
Elops machnata	0.11	−0.38	−0.16	0.26	0.33
Hyphoramphus improvis	−0.23	−0.27	−0.58^*	0.38	0.66^*
Periophthalmus weberi	−0.63^*	−0.16	−0.63^*	−0.01	0.63^*
Glossogobius giuris	−0.14	−0.34	−0.38	0.45	0.51^*
Anguilla bengalensis	−0.22	0.07	−0.10	0.87^**	0.22
Scylla serrata	0.40	0.59^*	−0.43	−0.17	−0.36
Penaeus monodon	0.17	0.23	0.22	0.29	0.03
Penaeus indicus	0.26	−0.43	0.21	−0.04	0.15
Metapenaeus brevicornis	−0.14	−0.29	−0.59^*	0.38	0.34
Metapenaeus dobsoni	−0.10	−0.31	−0.61^*	0.40	0.48

Significant, ^**highly significant.