Karyological Investigations of Two Populations of Tigriopus (Copepoda, Harpacticoida) from the Kerguelen Region

Abstract
The diploid chromosome number 2n = 24 was established in the harpacticoid copepod Tigriopus sp. coming from Kerguelen Island, the population of Tigriopus inhabiting Crozet Island possesses the diploid number 2n = 22. The 2 populations differ also in homogeneity of the karyotype, thereby further supporting the hypothesis that these 2 populations belong to different species.

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