Macrohectopus branickii is a unique inhabitant of the Lake Baikal’s pelagial zone that occupies the same ecological niche as Antarctic krill and mysids. However, many aspects of this species ecology are still unknown or disputable. In this study we attempt to clarify the peculiarities of the species distribution in the littoral zone. Since specimens of Macrohectopus branickii are active migrants and participate at daily vertical migrations to the water surface, we used the conus nets designed to catch Macrohectopus branickii during passive floating from the ice surface to the water column. Obtained data revealed the presence of Macrohectopus branickii at a depth over 47 m as well as the fact that migrating schools of the species are not able to enter the specific sites for a long time. We also discussed the capacity of Macrohectopus branickii to freeze into the ice and ecological significance of this specific phenomenon.
Arov IV, Basharova NI, Melnik NG. Methods of zooplankton’s studies. Part 2. Qualitative and quantative sample processing. Irkutsk: Irkutsk State University Publishing; 2000. (in Russian).
Karnaukhov DYu, Bedulina DS, Kaus A. et al. Behaviour of Lake Baikal amphipods as a part of the night migratory complex in the Kluevka settlement region (South-Eastern Baikal). Crustaceana. 2016a; 89(4):419-430. doi: 10.1163/15685403-00003530
Karnaukhov DYu, Takhteev VV, Misharin AS. Structural features of the nocturnal migratory complex of hydrobionts in different parts of Baikal Lake. The Bull of ISU Ser “Biol. Ecol”. 2016b; 18:87-98. (in Russian).
Karnaukhov DY, Biritskaya SA, Dolinskaya EM, Silow EA. Some traits of the pelagic amphipod Macrohectopus branickii (Dyb.) distribution in Lake Baikal. UPI J Chem Life Sci. 2018; 1(2):1-6.
Koryakov EA. The use of vertical daily migrations of aquatic animals for their capture by fixed guns. Tr. of the All-Union Hydrobiol. Soc. 1959; 9:344-350. (in Russian).
Kozhov MM. Lake Baikal and its life. The Hague, Netherlands: DR. W. Junk Publishers. 1963:344.
Kozhova OM, Izmest’eva LR. Lake Baikal: Evolution and biodiversity. Backhuys Publishers. 1998:447.
Mekhanikova IV, Poberezhnaya AE, Sitnikova TYa. About freezing of littoral invertebrates into the ice of Lake Baikal. Zool. j. 2009; 88(3): 259-262.
Melnik NG, Timoshkin OA, Sideleva VG. Guide and key to the pelagic animals of Lake Baikal (with short essays on their ecology). Novosibirsk: Nauka, SO; 1995. (in Russian).
Nikolaevа EP. Some data on the reproduction biology of the pelagic Baikal bokoplav Macrohectopus branickii Dyb. Bull. of the Biol.-Geogr. Res. Inst. at the ISU. 1967; 20:28-33. (in Russian).
Rudstam L, Melnik NG, Chubenkov SG. Invertebrate predators in the pelagic food chains: similarities between Macrohectopus branickii (Amphipoda) of lake Baikal and Mysis relicta (Mycidaea) of lake Ontarion. Siberian ecological journal. 1998; 5(1):429–434 (in Russian).
Rudstam LG, Melnik NG, Timoshkin OA, Hansson S, Pushkin SV, Nemov V. Diel dinamics of an aggregation of Macrohectopus branickii (Dyb.) (Amphipoda, Gammaridae) in the Barguzin Bay, Lake Baikal, Russia. J. Great Lakes Res. 1992; 18(2):286-297.
Takhteev VV, Berezina NA, Sidorov DA. Checklist of the Amphipoda (Crustacea) from continental waters of Russia, with data on alien species. Arthropoda Selecta. 2015; 24(3):335–370.
Takhteev VV, Didorenko SI. Fauna and ecology of Lake Baikal amphipods. Publishing House of the Institute of Geography. V.B. Sochavy SB of the RAS. 2015:115 (in Russian).
Takhteev VV, Karnaukhov DYu, Govorukhina EB, Misharin AS. Diel vertical migrations of hydrobionts in the coastal area of Lake Baikal. Inland Water Biology. 2019; (2):50-61. doi: 10.1134/S0320965219020141
Takhteev VV, Karnaukhov DYu, Misharin AS, Govorukhina EB. Distant methods of ecological research and monitoring in limnology and oceanology and their application on Lake Baikal. The development of life in the process of abiotic changes on Earth. 2014; (3):374-381. (in Russian).
Unguryanu TN, Grjibovski AM. Analysis of three independent groups using non-parametric Kruskal-Wallis test in stata software. Human Ecology. 2014; 6(1):55-58. (In Russian).
Vilisova IK. To the ecology of the Baikal pelagic amphipod Macrohectopus branickii Dyb. Tr. LIN SO AN of the USSR. Part 1: Systematics and ecology of crustaceans of Lake Baikal. 1962; 2(22):156-171. (in Russian)
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