RADIOCARBON_VALUES_NOSAMS

Number used by NOSAMS (National Ocean Sciences Accelerator Mass Spectrometry facility at Woods Hole Oceanographic Institution) to record and track submitted samples.

Date of reported radiocarbon analysis by NOSAMS (National Ocean Sciences Accelerator Mass Spectrometry facility at Woods Hole Oceanographic Institution).

Identification number used by the Life History Program to link to other records and lab data (1 of 2).

Identification number used by the Life History Program to link to other records and lab data (2 of 2).

Fish species on which the analysis was performed.

Material type submitted to NOSAMS for radiocarbon analysis.

Process used by NOSAMS to liberate carbon dioxide from the sample to form graphite.

Number used by NOSAMS (National Ocean Sciences Accelerator Mass Spectrometry facility at Woods Hole Oceanographic Institution) to record and track submitted samples during radiocarbon anaysis.

Fraction Modern is the measured deviation of the 14C/12C ratio from Modern. Modern is defined as 95% of the 14C concentration of the National Bureau of Standards Oxalic Acid I standard (SRM 4990B) normalized to d13C VPDB (-19ppm) in 1950 AD (VPDB = Vienna Pee Dee Belemnite geological standard.

Analytical uncertainty associated with the F14C (Fraction Modern) measurement (1 standard deviation).

Radiocarbon age when applicable (prebomb) or an indication of the post-bomb era (Modern is greater than >1950).

Analytical uncertainty associated with the Age calculation (1 standard deviation), when applicable.

Measurement of carbon-12 to carbon-13 to assess environmental carbon isotope fractionation.

Fractionation value for d13C that was either measured or assumed from literature.

Report the D14C value as defined in Stuiver and Pollach (1977) as the relative difference between the absolute international standard (base year 1950) and sample activity corrected for age and d13C. The D14C is age corrected to account for decay that took place between collection (or death) and the time of measurement so that two measurements of the same sample made years apart will produce the same calculated D14C result. Collection year must be specified in order for D14C results to be calculated.

Date or year of fish collection.

Location of fish collection.

Fish length as measured in centimeters (cm).

Fish length definition in terms of standard length (SL), fork length (FL), or total length (TL).

Sex determined for the fish specimen.

Location of the scientific results for the study when completed (DOI for jounral articles, web address for reports, and other potential links).

Specimen or sample notes that may be pertinent to how the particular sample was handled differently from others in the data set.