The Leukocytes Composition of the Peripheral Blood of the Plunderfish Pogonophryne sp. (Perciformes: Artedidraconidae) and Grey Rockcod Lepidonotothen squamifrons (Günther, 1880) (Perciformes: Nototheniidae) from the Ross Sea

A comparative study of the composition of peripheral blood leukocytes of plunderfish and grey rockcod or squama caught in the Ross Sea has been carried out. Blood smears revealed cells of different morphofunctional characteristics and structure: lymphocytes, monocytes, neutro- and eosinophils, and blast cells. An analysis of the leukogram showed that the white blood of the studied species has a lymphoid character. In the rockcod leukogram, the proportion of lymphocytes is significantly higher, while that of monocytes and blast forms is lower. In the plunderfish, in comparison with the grey rockcod, the leukocyte cells of the same name are usually larger.