Age-0 Sablefish Size and Growth Indices from Seabird Diets at Middleton Island, Alaska
June 21, 2023
This dataset provides annual summaries of information on age-0 sablefish in Rhinoceros Auklet (Cerorhinca monocerata) chick diets from Middleton Island, Alaska. This includes number of diet samples, number of sablefish sampled, proportion of total biomass, catch per unit effort, and frequency of occurrence for each year.
We calculated an annual growth index for age-0 sablefish using the relationship between mean length by day and Julian day for each year (OLS[F = 24.44, df = 61, 184]: R^2 = 0.85, p less than 0.001). From this model, growth (in mm per day) is the slope, and predicted length (in mm) is the length on the median Julian day = 205 (July 24). Annual anomalies of growth and length are calculated for each variable by subtracting the mean of all years.
We calculated an annual growth index for age-0 sablefish using the relationship between mean length by day and Julian day for each year (OLS[F = 24.44, df = 61, 184]: R^2 = 0.85, p less than 0.001). From this model, growth (in mm per day) is the slope, and predicted length (in mm) is the length on the median Julian day = 205 (July 24). Annual anomalies of growth and length are calculated for each variable by subtracting the mean of all years.
Citation Information
| Publication Year | 2023 |
|---|---|
| Title | Age-0 Sablefish Size and Growth Indices from Seabird Diets at Middleton Island, Alaska |
| DOI | 10.5066/P94KVH9X |
| Authors | Mayumi Arimitsu, Scott A Hatch |
| Product Type | Data Release |
| Record Source | USGS Asset Identifier Service (AIS) |
| USGS Organization | Alaska Science Center |
| Rights | This work is marked with CC0 1.0 Universal |
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Age-0 sablefish size and growth indices from seabird diets at Middleton Island, Gulf of Alaska
Sablefish (Anoplopoma fimbria) is a commercially valuable groundfish species in Alaska, with the population assessed annually by the National Oceanic and Atmospheric Administration Alaska Fisheries Science Center. Sablefish recruit into the commercially fished population at 2 years old and are poorly sampled by most surveys before that age. However, information on the abundance...
Authors
Mayumi L. Arimitsu, Scott A. Hatch
Related
Age-0 sablefish size and growth indices from seabird diets at Middleton Island, Gulf of Alaska
Sablefish (Anoplopoma fimbria) is a commercially valuable groundfish species in Alaska, with the population assessed annually by the National Oceanic and Atmospheric Administration Alaska Fisheries Science Center. Sablefish recruit into the commercially fished population at 2 years old and are poorly sampled by most surveys before that age. However, information on the abundance...
Authors
Mayumi L. Arimitsu, Scott A. Hatch