An electrophoretic study of the antarctic zooplankter Euphausia superba1

• Published in: Limnology and Oceanography
• Main Authors: Ayala, F. J., Valentine, James W., Zumwalt, G. S.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1975
• Subjects: Aquatic Science; Oceanography; Antarctic; The Antarctic; Antarc*; Antarctic Krill; Euphausia superba
• Online Access: http://dx.doi.org/10.4319/lo.1975.20.4.0635; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.1975.20.4.0635; https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.1975.20.4.0635

Genetic variability has been estimated for a large population of the antarctic krill, Euphausia superba, by gel electrophoresis. Of 36 loci studied, 21 (58.3%) exhibit allelic variation. An average individual is heterozygous at 5.8% of the loci, a moderately low level of variability when compared to benthic invertebrates. Low to moderately low genetic variabilities are previously recorded from benthic invertebrates in environments with highly seasonal trophic resources, and E. superba fits this relationship.