survey station count in the data processed reports is equivalent to "biomass worthy" tows as indicated by the ABUDANCE_HAUL = 'Y' flag in RACEBASE.HAUL:
SQLPlus script
select count(distinct hauljoin) nstations
from racebase.haul
where region = 'AI'
and cruise = 202201
and abundance_haul = 'Y'
/
on a historical note for the Gulf-Aleutian surveys, prior to the AbundanceHaul flag there were five fields in composite that identified a good (biomass worthy) tow (HAUL_TYPE = 3, PERFORMANCE >= 0, GEAR = 172, ACCESSORIES = 129, DURATION >= a minimum length of time that varies over the survey history...used to be 10 minutes but is currently 1.5 minutes)
survey station count in the data processed reports is equivalent to "biomass worthy" tows as indicated by the ABUDANCE_HAUL = 'Y' flag in RACEBASE.HAUL: SQLPlus script select count(distinct hauljoin) nstations from racebase.haul where region = 'AI' and cruise = 202201 and abundance_haul = 'Y' / on a historical note for the Gulf-Aleutian surveys, prior to the AbundanceHaul flag there were five fields in composite that identified a good (biomass worthy) tow (HAUL_TYPE = 3, PERFORMANCE >= 0, GEAR = 172, ACCESSORIES = 129, DURATION >= a minimum length of time that varies over the survey history...used to be 10 minutes but is currently 1.5 minutes)