species                     sample_number  cruise_id  lat    lon      date         length  replicate_number  d15N   d13C    Molar_C_to_N  
Symbolophorus_reversus      Sr2            SWFSC1631  -1.90  -107.58  2006-09-19   56      1                 5.6    -19.0   4.11          
Symbolophorus_reversus      Sr3            SWFSC1631  1.83   -125.47  2006-09-13   65      1                 10.8   -18.5   4.45          
Symbolophorus_reversus      Sr4            SWFSC1630  11.57  -94.22   2006-10-07   73      1                 11.8   -18.3   4.91          
Symbolophorus_reversus      Sr5            SWFSC1631  6.30   -140.72  2006-09-08   63      1                 15.8   -17.6   3.79          
Symbolophorus_reversus      Sr12           SWFSC1631  6.30   -140.72  2006-09-08   58      2                 14.9   -17.4   3.84          
Symbolophorus_reversus      Sr6            SWFSC1630  6.83   -80.83   2006-09-12   55      1                 12.2   -18.3   4.33          
Symbolophorus_reversus      Sr7            SWFSC1630  8.37   -91.68   2006-09-23   56      1                 11.6   -18.4   4.83          
Symbolophorus_reversus      Sr8            SWFSC1630  10.38  -87.68   2006-09-20   55      1                 11.7   -18.3   4.33          
Symbolophorus_reversus      Sr9            SWFSC1630  10.38  -87.68   2006-09-20   50      2                 11.8   -18.1   4.29          
Symbolophorus_reversus      Sr10           SWFSC1630  6.07   -110.70  2006-08-24   53      1                 14.3   -17.6   4.01          
Symbolophorus_reversus      Sr1            SWFSC1630  6.07   -110.70  2006-08-24   56      2                 13.4   -18.2   4.39          
Symbolophorus_reversus      Sr11           SWFSC1630  6.48   -104.38  2006-08-26   53      1                 12.1   -17.1   3.87          
Symbolophorus_reversus      Sr13           SWFSC1631  3.88   -102.28  2006-10-24   59      1                 12.6   -17.0   3.80