Table 4. Correlation of heavy metal (μg/g) of Cd, Pb, Cu, Fe, and Zn in the Caulerpa during Northerly-Westerly monsoon in Bintan Island coastal water.
| Correlations | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cd_C | Pb_C | Cu_C | Fe_C | Zn_C | T ( oC) | Current | depth | Salinity | pH | DO | N | BOD | COD | TSS | TDS | |
| Cd_C | 1 | .631 ** | .835 ** | .770 ** | -0.059 | 0.018 | -0.171 | -0.008 | -0.096 | -0.097 | -0.059 | -0.017 | -0.104 | -0.064 | -0.118 | -0.091 |
| Pb_C | .631 ** | 1 | .571 ** | .526 ** | 0.241 | -0.317 | 0.077 | 0.101 | 0.044 | 0.072 | 0.087 | 0.07 | 0.035 | 0.1 | 0.071 | 0.069 |
| Cu_C | .835 ** | .571 ** | 1 | .651 ** | 0.052 | -0.11 | -0.056 | 0.099 | 0.005 | 0.009 | 0.049 | 0.111 | 0.01 | 0.049 | -0.055 | 0.012 |
| Fe_C | .770 ** | .526 ** | .651 ** | 1 | -0.158 | -0.156 | 0.114 | 0.083 | -0.032 | -0.022 | 0.021 | 0.114 | -0.027 | 0 | -0.076 | -0.019 |
| Zn_C | -0.059 | 0.241 | 0.052 | -0.158 | 1 | -0.139 | -0.108 | -0.169 | -0.107 | -0.081 | -0.091 | -0.192 | -0.039 | -0.027 | -0.129 | -0.098 |
| T ( oC) | 0.018 | -0.317 | -0.11 | -0.156 | -0.139 | 1 | -.416 * | -0.225 | -0.216 | -0.245 | -0.204 | -0.221 | -0.231 | -0.252 | -0.184 | -0.239 |
| Current | -0.171 | 0.077 | -0.056 | 0.114 | -0.108 | -.416 * | 1 | .852 ** | .832 ** | .850 ** | .837 ** | .854 ** | .842 ** | .837 ** | .786 ** | .854 ** |
| Depth | -0.008 | 0.101 | 0.099 | 0.083 | -0.169 | -0.225 | .852 ** | 1 | .960 ** | .961 ** | .947 ** | .931 ** | .952 ** | .953 ** | .889 ** | .966 ** |
| Salinity | -0.096 | 0.044 | 0.005 | -0.032 | -0.107 | -0.216 | .832 ** | .960 ** | 1 | .998 ** | .988 ** | .947 ** | .991 ** | .989 ** | .947 ** | .998 ** |
| pH | -0.097 | 0.072 | 0.009 | -0.022 | -0.081 | -0.245 | .850 ** | .961 ** | .998 ** | 1 | .988 ** | .941 ** | .991 ** | .993 ** | .948 ** | .999 ** |
| DO | -0.059 | 0.087 | 0.049 | 0.021 | -0.091 | -0.204 | .837 ** | .947 ** | .988 ** | .988 ** | 1 | .956 ** | .974 ** | .980 ** | .920 ** | .987 ** |
| BOD | -0.104 | 0.035 | 0.01 | -0.027 | -0.039 | -0.231 | .842 ** | .952 ** | .991 ** | .991 ** | .974 ** | .933 ** | 1 | .988 ** | .927 ** | .990 ** |
| COD | -0.064 | 0.1 | 0.049 | 0 | -0.027 | -0.252 | .837 ** | .953 ** | .989 ** | .993 ** | .980 ** | .927 ** | .988 ** | 1 | .942 ** | .992 ** |
| TSS | -0.118 | 0.071 | -0.055 | -0.076 | -0.129 | -0.184 | .786 ** | .889 ** | .947 ** | .948 ** | .920 ** | .860 ** | .927 ** | .942 ** | 1 | .949 ** |
| TDS | -0.091 | 0.069 | 0.012 | -0.019 | -0.098 | -0.239 | .854 ** | .966 ** | .998 ** | .999 ** | .987 ** | .944 ** | .990 ** | .992 ** | .949 ** | 1 |
**
Correlation is significant at the 0.01 level (2-tailed).
*
Correlation is significant at the 0.05 level (2-tailed).