Summary
Meiotic chromosomes of antarctic krill, Euphausia superba Dana, collected at Admiralty Bay, are described and the method used to obtain this genetic material is reported. Forty seven dividing meiotic nuclei at diakinesis and metaphase I from seminal glands of four males were examined, all with n= 17 bivalents. The results were compared with those obtained by other workers using krill specimens from the opposite side of the Antarctic continent and apparent differences in chromosome numbers were observed. Possible reasons for these differences and the potential for using cytogenetic techniques to study populations of krill are discussed.
This is a preview of subscription content, log in via an institution to check access.
References
Anderson RC (1982) Isozyme variation in euphausiids. Ph D thesis, University of East Anglia, Fisheries Laboratory, Lowestoft (UK)
Fevolden SE (1988) Biochemical genetics and population structure of Euphausia superba. Comp Biochem Physiol 90B: 507–513
Fevolden SE, Ayala FJ (1981) Enzyme polymorphism in Antarctic krill (Euphausiacea); Genetic variation between populations and species. Sarsia 66:167–181
Kittel W (1980) Populational studies on Euphausia superba Dana, 1852 (Euphausiacea, Crustacea) in waters of the Admiralty Bay during Antarctic Summer of 1978. Pol Arch Hydrobiol 27:267–272
Kühl S, Schneppenheim R (1986) Electrophoretic investigation of genetic variation in two krill species Euphausia superba and E. crystallorophias (Euphausiidae). Polar Biol 6:17–23
Lécher P, Solignac M (1975) Etude caryologique de Jaera (albifrons) ischiosetosa (Crustacés, Isopodes). III. Cline chromosomique des côtes ouest-europeénnes. Arch Zool Exp Gen 116:591–614
MacDonald CM, Williams R, Adams M (1986) Genetic variation and population structure of krill (Euphausia superba Dana) from the Prydz Bay region of Antarctic waters. Polar Biol 6:233–236
Meredith R (1969) A simple method for preparing meiotic chromosomes from mammalian testis. Chromosoma (Berl) 26:254–258
Salemaa H (1986) Karyology of the northern Baltic peracaridan crustacea. Sarsia 71:17–25
Schneppenheim R, MacDonald CM (1984) Genetic variation and population structure of krill (Euphausia superba) in the Atlantic sector of Antarctic waters and off the Antarctic Peninsula. Polar Biol 3:19–28
Yabu H, Kawamura A (1981) Chromosomes of Euphausia pacifica Hansen (Crustacea, Euphausiidae). Chromosome Information Service 31:8–9
Yabu H, Kawamura A (1984) Chromosomes of Euphausia superba Dana. Bull Plankton Soc Jpn 31:61–63
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Van Ngan, P., Gomes, V., Suzuki, H. et al. Preliminary study on chromosomes of Antarctic krill, Euphausia superba Dana. Polar Biol 10, 149–150 (1989). https://doi.org/10.1007/BF00239161
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00239161