| Recyear | | Physical quantity | the year of sample collected |
| Recmonth | | Physical quantity | the month of sample collected |
| Recday | | Physical quantity | the day of sample collected |
| Watershed | | Nominal | Watershed code |
| Repsite | | Nominal | Replicate site for a treatment (a, b, c, and d) |
| Spcode | | Physical quantity | Species Code |
| Genus | | Nominal | Abbreviated genus name |
| Species | | Nominal | Species name |
| S1 | | Physical quantity | # of individuals in sample 1 |
| S2 | | Physical quantity | # of individuals in sample 2 |
| S3 | | Physical quantity | # of individuals in sample 3 |
| S4 | | Physical quantity | # of individuals in sample 1 |
| S5 | | Physical quantity | # of individuals in sample 5 |
| S6 | | Physical quantity | # of individuals in sample 6 |
| S7 | | Physical quantity | # of individuals in sample 7 |
| S8 | | Physical quantity | # of individuals in sample 8 |
| S9 | | Physical quantity | # of individuals in sample 9 |
| S10 | | Physical quantity | # of individuals in sample 10 |
| Total | | Physical quantity | # of individuals in total |
