Zoogeographical zoning of the pelagic layer in the Pacific waters at Kamchatka and Kuril Islands on the base of nekton habitats
The pelagic layer of the Pacific waters at Kamchatka and Kuril Islands is divided into zoogeographical zones on the data of nekton species distribution under the condition of spatial continuity for the index of latitudinal zonality for each species. The index is determined by latitudinal status of a species, i.e. the type of its natural habitat in the frame of latitudinal zones, and is formulated verbally and translated into numerical form using specially developed scale. Maps of zoogeographical zoning are drawn for summarized data and for certain phases of daily, seasonal, and interannual variations. The maps for the upper epipelagic and mezopelagic layers, separately, are presented, as well.