Abstract
The spatial distribution of redfish Sebastes mentella in the pelagic zone of the northern part of the Atlantic Ocean (the Irminger Sea and the Labrador Sea) is investigated. Analysis of the data on size-age composition, sex ratio, ratio of mature and immature specimens, rate of maturation, composition of the parasite fauna, infestation level, infestation with the copepod Sphyrion lumpi, and occurrence of pigment formations on the body of redfish from the investigated areas indicate the absence of stable isolated aggregations of this species in the oceanic pelagial of the North Atlantic. Pelagic aggregations are formed of rapidly maturating specimens migrated from the slopes of Greenland. The spatial variation of the size-age composition of redfish depends on the life cycle and regional hydrological conditions.
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Original Russian Text © S.P. Melnikov, Yu.I. Bakay, 2009, published in Voprosy Ikhtiologii, 2009, Vol. 49, No. 2, pp. 200–213.
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Melnikov, S.P., Bakay, Y.I. Structure of aggregations and principal populational characteristics of redfish Sebastes mentella (Scorpaeniformes: Scorpaenidae) in the pelagic zone of the Irminger Sea and adjacent waters. J. Ichthyol. 49, 170–182 (2009). https://doi.org/10.1134/S0032945209020040
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DOI: https://doi.org/10.1134/S0032945209020040