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Journal "Inland Water Biology"

№ 4 за 2018 год

V. P. Semenchenko a, *, T. P. Lipinskaya a , M. D. Moroz a , E. A. Sysova a , and N. N. Maisak a

Impact of Inflows on the State of Littoral Communities in Naroch Lake (Belarus)

a Scientific and Practical Centre for Bioresources National Academy of Sciences, 220072 Minsk, Republic of Belarus

e-mail: semenchenko57@mail.ru

An assessment of the impact of streams on the state of littoral communities (phyto-, zooplankton and macrozoobenthos) in Lake Naroch has been carried out. The similar reaction of littoral communities on the water entry from different streams was pointed out. Changing of zooplankton abundance correlated with phytoplankton one and related with concentration of nutrient elements. The abundance of macrozoobenthos increased in the sites adjacent to Kupa and Urliki streams, mainly due to oligochaetes, which could be related with the accumulation of organic matter by streams. The community’s structure and biotic indexes indicated that Kupa and Urliki streams had the low ecological status and impact on the state of littoral communities of Lake Naroch. However, the area affected by streams is not large due to the low water inflow.

Keywords: phytoplankton, zooplankton, macrozoobenthos, littoral zone, Lake Naroch.

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S. I. Genkal a, * and M. I. Yarushina b

Species of the Genus Geissleria (Bacillariophyta) in Russia: Morphology, Taxonomy, and Distribution

a Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok, Nekouzskii raion, Yaroslavl oblast, 152742 Russia
b Institute of Plant and Animal Ecology, Ural Branch of the Russian Academy of Sciences, Yekaterinburg, 620144, Russia

e-mail: genkal@ibiw.yaroslavl.ru

Materials from waterbodies and watercourses in West and East Siberia have been studied, new data on morphology of some representatives of the genus Geissleria have been obtained, and the systematic posi-tion of some species and forms of the genus Geissleria reported in the literature as species has been specified. The number of areolae in 10 μm and marginal structures are used as differential features. Findings of some representatives of the genus Geissleria (G. acceptata, G. declivis, G. decussis, G. mongolica, and G. thingvallae) in the studied water bodies in Russia make it possible to broaden our knowledge of their ranges. The following species that are new for science are described: G. davydovae sp. nov., G. moiseevae sp. nov., G. bondarenkae sp. nov. and G. gollerbakhii sp. nov.

Keywords: Bacillariophyta, Geissleria, electron microscopy, morphology, taxonomy, distribution, new species.

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V. G. Gagarin a and T. V. Naumova b, *

Species of Free-Living Nematodes (Nematoda) New to Science from Lake Baikal and Freshwater Bodies of the Russian Far East

a Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok, Nekouzskii raion, Yaroslavl oblast, 152742 Russia
b Limnological Institute, Siberian Branch of Russian Academy of Sciences, 664033 Irkutsk, Russia

e-mail: tvnaum@lin.irk.ru

Two free-living nematode species found the interstitial zone of the splash zone of Lake Baikal have been described. Eumonhystera arenosa sp. n. similar to E. filiformis (Bastian, 1865) Andrássy, 1981, but is longer body, bulb-shaped expansion of pharynx, shorter inner labial sensillae, other correlation of tail length and distance from vulva to anus and longer spicules. Tripyla alekseevi sp. n. morphological is close to T. affinis de Man, 1884, but differs from it in the longer inner labial sensillae, narrower labial region, smaller number of supplements in males, longer gubernaculum. T. affinis, description and illustrated by Alekseev from freshwater bodies of Far East, regard to Tripyla alekseevi sp. n. A key for the five valid species of the genus Tripyla inhabiting Lake Baikal, is given.

Keywords: splash-zone, Lake Baikal, new species, free-living nematodes, Eumonhystera arenosa sp. n., Tripyla alekseevi sp. n.

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E. I. Kukuev a and A. M. Orlov b, c, d, e, f, *

New Subspecies of Twaite Shad Alosa fallax balticus (Clupeidae)

a Atlantic Research Institute of Fisheries and Oceanography, 236000 Kaliningrad, Russia
b Russian Federal Research Institute of Fisheries and Oceanography, 107140 Moscow, Russia
c Severtsov Institute of Ecology and Evolution RAS, 119071 Moscow, Russia
d Dagestan State University, 367000 Makhachkala, Russia
e Tomsk State University, 634050 Tomsk, Russia
f Caspian Institute of Biological Resources of the Dagestan Scientific Center, Russian Academy of Sciences, Makhachkala, 367023 Russia

e-mail: orlov@vniro.ru

We have carried out a comparative analysis of the morphological features of Twaite shad Alosa fallax are studied based on the own data (Kurshsky Bay, Baltic Sea, 2008 and 2009) and comparative materials (collections of Russian and foreign natural history museums, including published data). The results of this study allow to assign Baltic Sea population of Twaite shad taxonomic status of subspecies Alosa fallax balticus subsp. nov. As compared to Atlantic Twaite shad A. fallax, the Baltic Sea subspecies is characterized by a fewer number of gill rakers (mean 36.7) and vertebrae (53.6), and also by larger ante-dorsal distance (46.2% SL or 41.6–42.7% TL). A. fallax balticus is one of the subspecies that have the lowest number of gill rakers on the first gill arch within the species Alosa fallax in the northeastern Atlantic and seas of its basins.

Keywords: Baltic Sea Twaite shad Alosa fallax balticus subsp. nov., new subspecies, morphology, description, Kurshsky Bay, Baltic Sea.

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S. A. Poddubniy a, *, E. V. Chemeris a, and A. A. Bobrov a

Influence of Water-Level Regime on the Overgrowing of Shallow Waters of the Rybinsk Reservoir (Review)

a Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, 152742 Borok, Nekouzskii raion, Yaroslavl oblast, Russia

e-mail: spod@ibiw.yaroslavl.ru

The long-term and seasonal dynamics of the water level in the Rybinsk Reservoir has been studied for the period of 1947–2015. The dependence of the shallow-water overgrowing area (S) on the water-level fluctuations (Z) has been obtained: S = 30 ‒45 e 1.054Z . The overgrowth of open shallow waters is restrained by the hydrodynamic influence on the littoral zone, while, in the case of protected shallow waters, the limiting factor is the drying up of habitats of aquatic plants, which takes place at the end of the vegetation season. For different ecological groups, the calculated maximum and optimum overgrowing areas vary from 10 to 100% of the total available shallow water area. Reserve areas suitable for the possible future expansion of plants vary from 40 to >90%. Results of the study show that, due to sharp long-term and annual fluctuations in water level, actual areas occupied by a higher aquatic vegetation are always significantly less than the calculated optimum and maximum areas. Under the current regime of reservoir regulation, its overgrowing will be maintained at a current level for a long time.

Keywords: water-level dynamics, higher aquatic vegetation, overgrowing area, overgrowing degree, shallow waters, Rybinsk Reservoir.

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V. A. Senkevich a, *, T. G. Stoiko a , and A. N. Tsyganov a

Species Composition and Community Structure of Zooplankton in Small Rivers of the Forest-Steppe Zone

a Penza State University, 440026 Penza, Russia

e-mail: viktoriya0606@mail.ru

The zooplankton communities have been studied in nine small rivers of Penza oblast. In total, 157 taxa are identified; 24 taxa are observed for first time for Penza oblast and one species is found for the first time for the Volga Region. Rotifers dominate in all studied communities. Spring zooplankton communities differ from those in summer by a high relative abundance of eurythermal species Synchaeta oblonga. Summer communities are more diverse because of the greater heterogeneity of the environment.

Keywords: zooplankton, small rivers, the Volga Upland, Penza region.

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N. V. Shadrin a, * and E. V. Anufriieva a

Integral Indicators of Variability of Arctodiaptomus salinus (Daday, 1885) (Copepoda, Diaptomidae) and Their Possible Use in Assessing the Population State

a Kovalevsky Institute of Marine Biological Research, Russian Academy of Sciences, 299011 Sevastopol, Russia

e-mail: snickolai@yandex.ru

The intrapopulation morphometric variability of the widespread species Arctodiaptomus salinus (Daday, 1885) has been studied in different water bodies of the Mediterranean and Black Sea regions. The authors evaluate the effect of temperature, salinity, and population density; estimate the integral characteristics of the variability levels and connectivity of morphometric parameters; and discuss the possibility of using these integral characteristics for diagnostics of the planktonic-crustacean population status.

Keywords: Copepoda, zooplankton, connectedness of parameters, destabilization of populations, morphometric variability.

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Е. M. Zubova a, *, N. A. Kashulin a , P. M. Terent’ev a , S. A. Val’kova a , A. A. Cherepanov a , and S. V. Postnova a

New Data on Morphological Features of the Branchial Apparatus of Oligorakered and Mediumrakered Forms of Whitefish Сoregonus lavaretus (L.) from the Largest Subarctic Lake

a Institute of the North Industrial Ecology Problems, Kola Scientific Center of the Russian Academy of Sciences, Apatity, 184209 Russia

e-mail: zubova@inep.ksc.ru

The distribution and feeding of the ecological forms of whitefish is studied in Lake Imandra, the largest subarctic water body. Data on the hydrochemical and hydrobiological characteristics of the reaches of the lake, as well as on the morphological features of the whitefish branchial apparatus with low and medium gill raker number, are obtained. A relationship between feeding preferences of whitefishes and size character-istics and trophic levels of the habitats is revealed.

Keywords: Lake Imandra, whitefish Coregonus lavaretus (L.), ecological forms, especially food.

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A. O. Zvezdin a, *, A. V. Kucheryavyy a , I. A. Tsimbalov a , V. V. Kostin a , and D. S. Pavlov a

Influence of Illumination on the Locomotor Activity in Smolts of European River Lamprey Lampetra fluviatilis (L.)

a Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, 119071 Moscow, Russia

e-mail: a.o.zvezdin@gmail.com

The behavior of the European lamprey smolts and changes in their locomotor activity have been studied during illumination alternation. Smolts have demonstrated the maximal level of their locomotor activity in the tanks and in the “Open Field” experimental facility during nighttime at the lowest explored illumination (0.9 lx). The maximal locomotor activity coincided in time with the appearance of migrating smolts in the river flow. In daytime, the locomotor activity of the smolts was lower at illumination of 900 lx which corresponds to the absence of daytime downstream migration. The change in the locomotor activity during twentyfour hours is considered as one of the mechanisms of realization of the downstream migration of smolts. The increase in the locomotor activity starts soon after an evening decrease in illumination below 0.1 lx and falls on the first half of night. The period of the increased locomotor activity ends before morning twilight. The presence of the circadian rhythms of locomotor activity in smolts of the European river lamprey is suggested.

Keywords: European river lamprey Lampetra fluviatilis (L.), smolts, locomotor activity, migratory behavior, mechanisms of migration, circadian rhythms, illumination, chronobiology.

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N. A. Pankova a, *, A. A. Bolotovskiy a , B. A. Levin a, b , and V. A. Nepomnyashchikh a, †

Organization of Three-Spined Stickleback Gasterosteus aculeatus L. (Gasterosteidae: Pisces) Exploratory Behavior in a Plus Maze

a Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok, Nekouzskii raion, Yaroslavl oblast, 152742 Russia
b Cherepovets State University, Cherepovets, Vologda oblast, 162600 Russia

e-mail: stellaria1985@yandex.ru

Three-spined sticklebacks of different ages use various simple strategies of exploratory behavior in an unfamiliar plus maze. These strategies involve a specific order of visits to the maze arms and they alternate during maze exploration. One of the strategies (touring) involves sequential visits to the arms during movement in a clockwise or counterclockwise direction. This strategy reduces the probability of returning to recently visited arms, but it does not require memorizing the sequence of arms visited. Another strategy consists of repeated shuttling between any two arms. Random transitions between arms are also observed. These transitions are difficult to explain within the concept of a specific simple strategy. An analysis of maze exploration strategies is proposed for comparative studies of behavioral organization in organisms of different taxonomic levels occupying different ecological niches.

Keywords: fish, Gasterosteus aculeatus, behavior, maze.

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S. G. Sokolov*

Parasite Fauna of Chinese Sleeper Perccottus glenii Dybowski, 1877 (Actinopterygii, Odontobutidae) in the Point of the Primary Introduction of the Host

Severtsov Institute Ecology and Evolution RAS, 119071 Moscow, Russia

e-mail: sokolovsg@mail.ru

A parasitological examination of the Chinese sleeper Perccottus glenii was carried out in the water bodies of St. Petersburg and its environs. Twenty-seven parasite species/taxa have been recorded. Host-spe-cific heteroxenous parasites of the Chinese sleeper were not found; this corresponds to the origin of the local populations of this fish from the aquarium-released specimens.

Keywords: Perccottus glenii, parasites, biological invasions, Gulf of Finland.

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T. F. Frolova a, *, A. N. Parshukov b , and G. I. Izvekova a

Activity of Digestive Enzymes in Perch Infected with Triaenophorus nodulosus (Pallas) Plerocercoids

a Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok, Nekouzskii raion, Yaroslavl oblast, 152742 Russia
b Institute of Biology of Karelian Research Centre RAS, 185910 Petrozavodsk, Russia

e-mail: bianka28061981@gmail.com

It is revealed that the infection of older groups of perch with T. nodulosus plerocercoids reduces the activity of enzymes, ensuring the initial stages of the assimilation of protein components in fish food. The infection does not affect the activity of glycosidases. The infection changes the ratio of activities of the above groups of enzymes and possibly reduces feeding the efficiency of the fish. In addition, the proportion of serine proteinases and metalloproteinases decrease, while the percentage of unidentified proteases significantly increases in the gut of infected fish.

Keywords: fishes, cestodes, Triaenophorus nodulosus, plerocercoid, digestive enzymes.

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T. B. Lapirova a, * and E. A. Flerova b, c

Feature of the Immunophysiological Status of the Senegal Polypterus (Polypterus senegalus Cuvier, 1829)

a Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, 152742 Borok, Nekouzskii raion, Yaroslavl oblast, Russia
b Demidov Yaroslavl State University, 150003 Yaroslavl, Russia
c Research Institute of animal breeding and forage prodaction, 152517 Mikhailovsky, Yaroslavl oblast, Russia

e-mail: ltb@ibiw.yaroslavl.ru

A comprehensive study of the main morphophysiological parameters of blood and immunocom-petent organs of Polypterus senegalus, one of the most ancient living species of fish, is presented. No funda-mental differences in morphological or basic physiological and biochemical parameters of blood or the immune system in comparison with other fish species from polypterus are revealed. The investigated species has well-developed mechanisms of nonspecific protection and a high adaptive potential.

Keywords: Polypterus senegalus, blood, immunocompetent organs, physiological indices, nonspecific immunity.

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A. V. Goncharov a, *, M. G. Grechushnikova a , and V. V. Pukhlakov a

New Possibilities of the Classical Method: Automated Determination of Primary Production and Destruction of Organic Substance in a Reservoir by the Oxygen Method

a Department of Hydrology, Faculty of Geography Lomonosov Moscow State University, 119234 Moscow, Russia

e-mail: mama15333@mail.ru

A device for the automated determination of the primary production (PP) and destruction (D) of organic matter in a water body by the oxygen method is presented. It consists of light and dark bottles with optical dissolved oxygen sensors (Onset, YSI) and the pump changing water in bottles through a predeter-mined period (3 h). Results of 3-day measurements performed in the Mozhaisk Reservoir have shown that the device describes the studied processes fairly well, significantly facilitating field research. The gross PP obtained during the experiment constituted about 4 mg O 2 /(L day), which corresponds to the eutrophic status of the reservoir. The device can be used for studying the functional characteristics of aquatic ecosystems under changing environmental factors such as temperature, illumination, and content of biogenic elements.

Keywords: oxygen method, automation of measurements, registrar of oxygen, phytoplankton primary production, destruction, Mozhaisk Reservoir.

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