event  cast  cycle     date_local  lat       lon        depth  niskin  taxon               size_class  abundance  
304    25    Cycle_2   07042010    9.04192   -90.56041  40     10      cryptophytes        2_to_10     0          
304    25    Cycle_2   07042010    9.04192   -90.56041  40     10      cryptophytes        10_to_20    0          
304    25    Cycle_2   07042010    9.04192   -90.56041  40     10      cryptophytes        gt20        0          
304    25    Cycle_2   07042010    9.04192   -90.56041  40     10      cryptophytes        total       0