| Parameter | Description | Units |
| Cruise_ID | cruise designation code | dimensionless |
| event | unique sampling event composite of GMT yday and time | YYyday_hhmm |
| date | date (UTC) at start of tow | YYYYMMDD |
| lat | latitude, average during tow (negative denotes South) | decimal degrees |
| lon | longitude, average during tow (negative denotes West) | decimal degrees |
| time | time (UTC) at start of tow | hhmm |
| depth_end | depth at end of tow | meters |
| depth_begin | depth at beginning of tow | meters |
| vol_filt | volume filtered by net | meter^3 |
| zoop_bm_200 | zooplankton dry weight; 200 to 500 microns | milligrams/meter^3 |
| zoop_bm_500 | zooplankton dry weight; 500 to 1000 microns | milligrams/meter^3 |
| zoop_bm_1000 | zooplankton dry weight; 1000 to 2000 microns | milligrams/meter^3 |
| zoop_bm_2000 | zooplankton dry weight; 2000 to 5000 microns | milligrams/meter^3 |
| zoop_bm_5000 | zooplankton dry weight; gt 5000 microns | milligrams/meter^3 |
| zoop_bm_total | zooplankton dry weight; total | milligrams/meter^3 |