Influence of the Barents Sea Frontal Zones on Chlorophyll Concentration in Spring
In spring of 2016, 2018 and 2019, chlorophyll a (Chl a) content was studied in the 0-50 m layer on the vast Barents Sea area - to the north of 75∘ N. Standard sampling was carried out at 11 oceanographic transects, including 52 stations. Due to the negative ice anomalies and the high-latitude position of the ice edge, original data on Chl a concentration for spring period were obtained in hard-to-reach and previously unexplored areas of the Barents Sea. The investigation area covered the Marginal Ice Arctic zone, as well as the area where the Polar Front was located quasi-stationary. The effect of the Marginal Ice Arctic and Polar frontal zones on the distribution of Chl a concentration was revealed. The strongest factor influencing the distribution of chlorophyll was the Polar Front. It divided mainly Arctic and Atlantic waters. The highest pigment concentrations corresponded to the Arctic water mass and exceeded the content of pigment in water of Atlantic origin by an order of magnitude. The impact of the Marginal Ice Arctic Front was not so obvious - the content of Chl a in waters of various genesis differed, but not more than by a factor of 2.
 Kazmin, A. S. (2014). Structure and Variability of Oceanic Frontal Zones: Analysis of Global Satellite Information. PhD dissertation thesis, P.P. Shirshov Institute of Oceanology.
 Kostianoy, A. G., Nihoul, J. C. J., Rodionov, V. B. (2004). Рhysical Oceanography of Frontal Zones in the Subarctic Seas. Elsevier Oceanography Series, vol. 71, pp. 1–316.
 Zhichkin, A. P. (2015). Peculiarities of inter-annual and seasonal variations of the Barents Sea ice coverage anomalies. Russian Meteorology and Hydrology, vol. 40(5), pp. 319–326.
 State standard: 17.1.4.02-90. (2001). Water. Spectrophotometric determination of chlorophyll-a. Moscow: Standards.
 Mamaev, O. I. (1987) Thermohaline analysis of the World Ocean waters. Leningrad: Hydrometeoizdat.
 Ozhigin, V. K., Ivshin, V. A., Trofimov, A. G., et al. (2016). The Barents Sea water: structure, circulation, variability. Murmansk: PINRO.
 Mahotin, M. S., Ivanov, V. V. (2016). Distribution of Atlantic water masses in the Barents Sea according to observations and numerical modeling, in Proceedings of Hydrometeorological Research Center of Russian Federation, No. 361, pp. 169–191.
 Zimin, A. V., Konik, A. A., Atadzhanova, O. A. (2018). Quantitative estimations of the variability of characteristics of the temperature of the sea (SST) surface in the front of the frontal zone of the Barents Sea, in Scholarly notes RSHU. No. 51, pp. 99–108. St. Peterburg: Russian State Hydrometeorological University.
 Plankton of the sea of the Western Arctic. (1997). Apatity: MMBI KSC RAS.
 Wassmann, P., Rat’kova, T. N, Andreassen, I. J., et al. (1999). Spring bloom development in the marginal ice zone and the central Barents Sea. P.S.Z.N.: Marine Ecology, vol. 20, No. 3–4, pp. 321–346.
 Perrette, M., Yool, A., Quartly, G. D., et al. (2011). Near-ubiquity of ice-edge blooms in the Arctic. Biogeosciences, vol. 8, No 2, pp. 515–524.
 Engelsen, O., Hegseth, E. N., Hop, H., et al. (2002). Spatial variability of chlorophyll-a in the marginal ice zone of the Barents Sea, with relations to sea ice and oceanographic conditions. J. Marine Systems, vol. 35, pp. 79–97.
 Hodal, H., Kristiansen, S. (2008). The importance of small-celled phytoplankton in spring bloom at the marginal ice zone in the northern Barents Sea. Deep-Sea Research, vol. 55, pp. 2176–2185.
 Sturluson, M., Nielsen, T. G., Wassmann, P. (2008). Bacterial abundance, biomass and production during spring blooms in the northern Barents Sea. Deep-Sea Research, vol. 55, pp. 2186–2198.