Sample 
Sample identification code

unitless 
sample 
Cruise 
Cruise designation

unitless 
cruise_id 
Site 
Site designation

unitless 
site 
ISO_Date_initial 
Initial sampling date UTC (yyyymmdd)

unitless 
date 
ISO_Date_final 
Final sampling date UTC (yyyymmdd)

unitless 
date 
Latitude 
Latitude

decimal degrees 
lat 
Longitude 
Longitude (West is negative)

decimal degrees 
lon 
Type 
Type of sample: Sediment= surface sediment (05 mm); Body= deposit feeder body tissue; Gut= gut content

unitless 
sample_type 
Species 
Species of deposit feeder: Scotoplanes= S. globosa; Echinocrepis= E. rostrata; Onerophanta= O. mutabilis

unitless 
species 
Type_gut 
Gut section: Hgut= hindgut; Fgut= foregut

unitless 
sample_type 
delta15N 
Bulk nitrogen isotopic composition

per mil (‰) vs AIR 
d15N 
delta13C 
Bulk carbon isotopic composition

per mil (‰) vs VPDB 
d13C 
ALA_N 
Mean delta15N value of all injections for Alanine

per mil (‰) vs AIR 
d15N_bio 
GLY_N 
Mean delta15N value of all injections for Glycine

per mil (‰) vs AIR 
d15N_bio 
THR_N 
Mean delta15N value of all injections for Threonine

per mil (‰) vs AIR 
d15N_bio 
SER_N 
Mean delta15N value of all injections for Serine

per mil (‰) vs AIR 
d15N_bio 
VAL_N 
Mean delta15N value of all injections for Valine

per mil (‰) vs AIR 
d15N_bio 
LEU_N 
Mean delta15N value of all injections for Leucine

per mil (‰) vs AIR 
d15N_bio 
ILE_N 
Mean delta15N value of all injections for Isoleucine

per mil (‰) vs AIR 
d15N_bio 
PRO_N 
Mean delta15N value of all injections for Proline

per mil (‰) vs AIR 
d15N_bio 
ASX_N 
Mean delta15N value of all injections for Aspartic Acid and Asparagine

per mil (‰) vs AIR 
d15N_bio 
GLX_N 
Mean delta15N value of all injections for Glutamic Acid and Glutamine

per mil (‰) vs AIR 
d15N_bio 
PHE_N 
Mean delta15N value of all injections for Phenylalanine

per mil (‰) vs AIR 
d15N_bio 
TYR_N 
Mean delta15N value of all injections for Thyrosine

per mil (‰) vs AIR 
d15N_bio 
LYS_N 
Mean delta15N value of all injections for Lysine

per mil (‰) vs AIR 
d15N_bio 
ALA_N_sd 
Standard deviation of delta15N values from all injections for Alanine

per mil (‰) vs AIR 
std_dev 
GLY_N_sd 
Standard deviation of delta15N values from all injections for Glycine

per mil (‰) vs AIR 
std_dev 
THR_N_sd 
Standard deviation of delta15N values from all injections for Theronine

per mil (‰) vs AIR 
std_dev 
SER_N_sd 
Standard deviation of delta15N values from all injections for Serine

per mil (‰) vs AIR 
std_dev 
VAL_N_sd 
Standard deviation of delta15N values from all injections for Valine

per mil (‰) vs AIR 
std_dev 
LEU_N_sd 
Standard deviation of delta15N values from all injections for Leucine

per mil (‰) vs AIR 
std_dev 
ILE_N_sd 
Standard deviation of delta15N values from all injections for Isoleucine

per mil (‰) vs AIR 
std_dev 
PRO_N_sd 
Standard deviation of delta15N values from all injections for Proline

per mil (‰) vs AIR 
std_dev 
ASX_N_sd 
Standard deviation of delta15N values from all injections for Aspartic Acid and Asparagine

per mil (‰) vs AIR 
std_dev 
GLX_N_sd 
Standard deviation of delta15N values from all injections for Glutamic Acid and Glutamine

per mil (‰) vs AIR 
std_dev 
PHE_N_sd 
Standard deviation of delta15N values from all injections for Phenylalanine

per mil (‰) vs AIR 
std_dev 
TYR_N_sd 
Standard deviation of delta15N values from all injections for Thyrosine

per mil (‰) vs AIR 
std_dev 
LYS_N_sd 
Standard deviation of delta15N values from all injections for Lysine

per mil (‰) vs AIR 
std_dev 
ALA_C 
Mean delta13C value of all injections for Alanine

per mil (‰) vs VPDB 
d13C_bio 
GLY_C 
Mean delta13C value of all injections for Glycine

per mil (‰) vs VPDB 
d13C_bio 
THR_C 
Mean delta13C value of all injections for Theronine

per mil (‰) vs VPDB 
d13C_bio 
SER_C 
Mean delta13C value of all injections for Serine

per mil (‰) vs VPDB 
d13C_bio 
VAL_C 
Mean delta13C value of all injections for Valine

per mil (‰) vs VPDB 
d13C_bio 
LEU_C 
Mean delta13C value of all injections for Leucine

per mil (‰) vs VPDB 
d13C_bio 
ILE_C 
Mean delta13C value of all injections for Isoleucine

per mil (‰) vs VPDB 
d13C_bio 
PRO_C 
Mean delta13C value of all injections for Proline

per mil (‰) vs VPDB 
d13C_bio 
ASX_C 
Mean delta13C value of all injections for Aspartic Acid and Asparagine

per mil (‰) vs VPDB 
d13C_bio 
GLX_C 
Mean delta13C value of all injections for Glutamic Acid and Glutamine

per mil (‰) vs VPDB 
d13C_bio 
PHE_C 
Mean delta13C value of all injections for Phenylalanine

per mil (‰) vs VPDB 
d13C_bio 
TYR_C 
Mean delta13C value of all injections for Thyrosine

per mil (‰) vs VPDB 
d13C_bio 
LYS_C 
Mean delta13C value of all injections for Lysine

per mil (‰) vs VPDB 
d13C_bio 
ALA_C_sd 
Standard deviation of delta13C values from all injections for Alanine

per mil (‰) vs VPDB 
std_dev 
GLY_C_sd 
Standard deviation of delta13C values from all injections for Glycine

per mil (‰) vs VPDB 
std_dev 
THR_C_sd 
Standard deviation of delta13C values from all injections for Theronine

per mil (‰) vs VPDB 
std_dev 
SER_C_sd 
Standard deviation of delta13C values from all injections for Serine

per mil (‰) vs VPDB 
std_dev 
VAL_C_sd 
Standard deviation of delta13C values from all injections for Valine

per mil (‰) vs VPDB 
std_dev 
LEU_C_sd 
Standard deviation of delta13C values from all injections for Leucine

per mil (‰) vs VPDB 
std_dev 
ILE_C_sd 
Standard deviation of delta13C values from all injections for Isoleucine

per mil (‰) vs VPDB 
std_dev 
PRO_C_sd 
Standard deviation of delta13C values from all injections for Proline

per mil (‰) vs VPDB 
std_dev 
ASX_C_sd 
Standard deviation of delta13C values from all injections for Aspartic Acid and Asparagine

per mil (‰) vs VPDB 
std_dev 
GLX_C_sd 
Standard deviation of delta13C values from all injections for Glutamic Acid and Glutamine

per mil (‰) vs VPDB 
std_dev 
PHE_C_sd 
Standard deviation of delta13C values from all injections for Phenylalanine

per mil (‰) vs VPDB 
std_dev 
TYR_C_sd 
Standard deviation of delta13C values from all injections for Thyrosine

per mil (‰) vs VPDB 
std_dev 
LYS_C_sd 
Standard deviation of delta13C values from all injections for Lysine

per mil (‰) vs VPDB 
std_dev 