Gosselin, J. L., McCarthy, K., & Sanderson, B. L. (2024). Predicting juvenile-to-adult survival in Chinook salmon using non-lethal scale-derived growth and regeneration indices. Écoscience, 1–15. https://doi.org/10.1080/11956860.2024.2374052
Data Files for the Research Study
The juvenile fish fork length and mass data are available in:
- VAL_length_mass.csv for the subyearlings sampled at Valley Creek, Idaho
- LGR_length_mass.csv for the yearlings sampled at Lower Granite Dam, Washington
The fish scale data are available in:
- VAL_scale_measurements.csv for the subyearlings sampled at Valley Creek, Idaho
- LGR_scale_measurements.csv for the yearlings sampled at Lower Granite Dam, Washington
The fish scale data and river temperature data for Figure 2 are in:
- VAL.scale.circuli.90.rivertemp.csv - The column headers and data descriptions for this file are as follows:
- Year: year of sampling
- sampleID: unique fish sample identification number, which includes the sampling site, year of outmigration, and fish number
- Axis: axis in representative degree (ø) starting with the lateral side of the scale closest to the dorsal side of the fish
- max_circulus: maximum number of circuli of the scale
- Temp_C: average November?August river temperature near Anatone, Washington.
The fish scale data used in the von Bertalanffy growth model (Table 1) are in:
- VAL_LGR_scale_data_CircAge.csv - The column headers and data descriptions for this file are as follows:
- sampleID: unique fish sample identification number, which includes the sampling site, year of outmigration, and fish number
- Site: sampling location (LGR = Lower Granite Dam; VAL = Valley Creek)
- Year: year of sampling
- Regen: regeneration index (Original, Small, or Large)
- fishno: unique fish sample number in each sampling year
- Axis: axis in representative degree (ø) starting with the lateral side of the scale closest to the dorsal side of the fish
- Circulus: circulus number starting from the focus of the scale
- Length: distance from the focus to the first circulus or between each pair of adjacent circuli
- cumLength: distance from the focus to the circulus being measured
- Max_circulus: maximum number of circuli of the scale
- Circulus_age: estimated age (assumed to be 8 months for subyearlings and 18 months for yearlings) by the maximum number of circuli observed for each fish
- zCirculus_age: Circulus_age scaled to a mean of 0 and 1 SD
- zcumLength: cumLength scaled to a mean of 0 and 1 SD
The data used in the model of juvenile-to-adult survival of PIT-tagged, wild Chinook salmon (Table 2) are in:
- VAL_LGR_data_covariates.csv - The column headers and data descriptions for this file are as follows:
- year: year of juvenile sampling
- doy: day of year of juvenile sampling
- tag_id: unique tag identification of passive-integrated-transponder-tagged (PIT-tagged) fish; ptagis.org
- rel_site: release site of PIT-tagged fish
- rel_time: release time of PIT-tagged fish
- lgr_obs: detection time of PIT-tagged fish at Lower Granite Dam
- length: fork length of PIT-tagged fish
- AliveDead.alive: 0/1 index of PIT-tagged fish being alive as at the adult stage upon return to the river
- AliveDead.dead: 0/1 index of PIT-tagged fish being dead before or at the adult stage
- radius_um: radius of fish scale in micrometers
- K.med.yr: estimated median K from von Bertalanffy model in each cohort year
- prop.regen: proportion of fish sample that has regenerated scales
- PDO: annual mean of the Pacific Decadal Oscillation index, associated with each year of yearling salmon ocean entry
- site: sampling site and life stage (VAL = Valley Creek and subyearling; LGR = Lower Granite Dam and yearling)
- lengthz: fork length of fish sample, scaled to a mean of 0 and 1 SD
- radius_umz; radius_um, scaled to a mean of 0 and 1 SD
- Kz; K.med.yr, scaled to a mean of 0 and 1 SD
- prop.regenz: prop.regen, scaled to a mean of 0 and 1 SD
- PDOz: PDO, scaled to a mean of 0 and 1 SD