caa a22 4500 445295929 CHVBK 20180317142541.0 cr unu---uuuuu 170323e20101101xx s 000 0 eng 10.1134/S0032945210090092 doi (NATIONALLICENCE)springer-10.1134/S0032945210090092 Structure and specific features of formation of aggregations of deepwater redfish Sebastes mentella (Scorpaenidae) in the Norwegian Sea pelagial [Elektronische Daten] [S. Melnikov, K. Drevetnyak] Results of studies of the structure and specific features of formation of aggregations of deepwater redfish Sebastes mentella in the Norwegian Sea pelagial are provided. Data on the biological characteristics of S. mentella from different regions of the Norwegian Sea pelagial do not allow us to consider its aggregations as separate populations. On the basis of comparative analysis of the structure of aggregations in the Norwegian Sea and of population parameters and specific features of the life cycle of S. mentella in different parts of the Atlantic Ocean, its complex intraspecies organization at sites of overlapping of two largest populations—North Atlantic and Norwegian-Barents Sea-was established. The formation of pelagic aggregations in the water area of the Norwegian Sea occurs due to migration of maturing and mature individuals from the adjoining water areas. In the southern areas of the Norwegian Sea, dominant recruitment comes from the pelagial of the northeastern part of the Irminger Sea, which is promoted by the direction of streams of the North-Atlantic Current; it is not excluded either that fish can migrate to the southern part of the sea from the slopes of the Faeroes, Faeroes-Icelandic threshold, and the western coast of Norway. Migration to the northern areas of the sea is mainly performed by rapidly maturing fish from the rearing region from the western slopes of the Barents Sea and Spitsbergen Archipelago. The presence of seasonal migrations hinders the formation in the pelagial of perch isolated groups and promotes their migration. Pleiades Publishing, Ltd., 2010 deepwater redfish nationallicence pelagial nationallicence Norwegian Sea nationallicence distribution nationallicence biological characteristic nationallicence recruitment nationallicence Melnikov S. Knipowich Polar Research Institute of Marine Fish Fisheries and Oceanography (PINRO), ul. Knipovicha 6, 183763, Murmansk, Russia aut Drevetnyak K. Knipowich Polar Research Institute of Marine Fish Fisheries and Oceanography (PINRO), ul. Knipovicha 6, 183763, Murmansk, Russia aut Journal of Ichthyology SP MAIK Nauka/Interperiodica 50/9(2010-11-01), 763-771 0032-9452 50:9<763 2010 50 11489 https://doi.org/10.1134/S0032945210090092 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0032945210090092 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Melnikov S. Knipowich Polar Research Institute of Marine Fish Fisheries and Oceanography (PINRO), ul. Knipovicha 6, 183763, Murmansk, Russia aut NATIONALLICENCE 700 1- Drevetnyak K. Knipowich Polar Research Institute of Marine Fish Fisheries and Oceanography (PINRO), ul. Knipovicha 6, 183763, Murmansk, Russia aut NATIONALLICENCE 773 0- Journal of Ichthyology SP MAIK Nauka/Interperiodica 50/9(2010-11-01), 763-771 0032-9452 50:9<763 2010 50 11489 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer