1. Alaska Department of Natural Resources, 1993. Alaska Coastline 1:1,000,000 - Digital Chart of theWorld (DCW). 〈http://asgdc.alaska.gov#2972〉.
2. Alaska Fisheries Science Center, 2017. Groundfish Survey Data. 〈https://www.afsc.noaa.gov/RACE/groundfish/survey_data/data.htm〉.
3. Permutational multivariate analysis of variance (PERMANOVA);Anderson;Wiley StatsRef Stat. Ref. Online,2017
4. Generalized discriminant analysis based on distances;Anderson;Aust. N. Z. J. Stat.,2003
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