Inland Water Biology

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Interannual Variability in Bioluminescence Field Intensity in Nearshore Waters of the Black Sea
Inland Water Biology - Tập 11 - Trang 286-291 - 2018
E. B. Melnikova
This paper analyzes interannual variations in the bioluminescence field intensity in nearshore relatively deep outside waters and in an enclosed shallow-water bay from 2009 to 2014; it presents analytical expressions of the interannual trends and reveals the 1.4- to 2.7-time decrease in the interannual bioluminescence field intensity over the studied period.
Diatom Algae (Bacillariophyta) in Rock Pools on Islands and Shore of the Kandalaksha Gulf, White Sea
Inland Water Biology - Tập 14 - Trang 241-246 - 2021
S. I. Genkal, N. V. Vekhov
A total of 131 taxa of species and intraspecies rank of diatom algae from 41 genera have been identified during a scanning electron microscopy study of material from several rock pools on islands and the shore of the Kandalaksha Gulf in the White Sea. Among them, one species (Cymbopleura cf. angustata var. fontinalis Krammer) is new for the flora of Russia; 16 forms from 12 genera are identified o... hiện toàn bộ
Methods for comparative assessment of the results of cluster analysis of hydrobiocenoses structure (by the example of zooplankton communities of the Linda River, Nizhny Novgorod region)
Inland Water Biology - Tập 9 - Trang 200-208 - 2016
B. N. Yakimov, G. V. Shurganova, V. V. Cherepennikov, I. A. Kudrin, M. Yu. Il’in
In this paper we present modern approaches to the classification of hydrobiological samples based on various metrics of species-structure similarity—Euclidean distance, Renkonen index, and the cosine of the angle between the species abundances vectors. We use the cophenetic correlation coefficient, Gower distance, and Shepard-like plot for the justification of clustering method. For the choice of ... hiện toàn bộ
The influence of various temperature regimes on the abundance dynamics and thermal tolerance of cladoceran Ceriodaphnia quadrangula (O.F. Müller, 1785)
Inland Water Biology - Tập 2 - Trang 67-71 - 2009
V. B. Verbitsky, T. I. Verbitskaya, O. A. Malysheva
Experimental studies on the abundance dynamics and thermal tolerance of cladoceran Ceriodaphnia quadrangula (O.F. Müller, 1785) as they depend on the value and action pattern of a thermal factor, as well as field observations and mathematical calculations were carried out. Based upon the results of these studies, the values of the temperature zone of normal vital functions (17.0–25.0°C) and of the... hiện toàn bộ
Content of total free nucleotides in the plankton of the Rybinsk reservoir (Upper Volga)
Inland Water Biology - Tập 10 - Trang 258-265 - 2017
N. M. Mineeva, A. M. Andreeva, I. P. Ryabtseva, A. I. Kopylov, E. A. Sokolova, I. V. Mitropol’skaya
The content of total free nucleotides (TFNs) in the plankton of the Rybinsk reservoir and in specific size fractions of the plankton has been determined by the spectrophotometric method modified by the authors. The content of TFNs amounts to 58.1 ± 5.4, 75.2 ± 4.6, and 64.1 ± 7.3 μg/L in spring, summer, and autumn, respectively, and exhibits a close correlation with the total plankton biomass (r =... hiện toàn bộ
Prediction of planktivorous fish catches based on the data of the forage resources
Inland Water Biology - Tập 3 Số 4 - Trang 360-364 - 2010
Е. Н. Науменко
Analysis of accumulation of heavy metals from river bottom sediments of the urban environment in the bodies of oligochaetes
Inland Water Biology - Tập 10 Số 3 - Trang 315-322 - 2017
Zakhar Slukovskii, T. N. Polyakova
Specific Features of the Cytogenetic Structure of the Population of Chironomus plumosus (L.) (Diptera, Chironomidae) in a Small Creek (Udmurt Republic, Russia)
Inland Water Biology - Tập 12 - Trang 119-122 - 2020
R. A. Lozhkina, N. A. Shobanov, I. A. Antipov, V. V. Bolshakov
Chromosomal polymorphism is investigated in samples of Chironomus plumosus L., (1758) (Diptera, Chironomidae) from a pond on the Chemoshur creek in Udmurtia for the first time. The pool of polytene chromosome banding sequences of this species includes 12 banding sequences forming 17 zygotic combinations. The pluF2 sequence is found with a high frequency of 0.17. The cytogenetic distance between th... hiện toàn bộ
Proteinase Activity in the Intestine of Ruff Gymnocephalus cernuus (L.) (Pisces) Depending on the Sum Length of Cestodes Proteocephalus cernuae (Gmelin) Parasitizing the Gut
Inland Water Biology - Tập 11 - Trang 87-91 - 2018
G. I. Izvekova, T. V. Frolova, A. E. Zhokhov
It is revealed that the infection of ruff with cestodes Proteocephalus cernuae affects the activity of its intestinal proteolytic enzymes. The influence of cestodes on the activity of intestinal proteinases depends on the sum length of the worms occupying the gut. Proteinase activity decreases at a smaller total length of the worms and increases at larger total length, with serine proteinases bein... hiện toàn bộ
New Representative of the Genus Aulacoseira (Bacillariophyta) from Chukotka (Russia)
Inland Water Biology - Tập 16 - Trang 136-138 - 2023
S. I. Genkal
A new species of diatoms, Aulacoseira chukotkaensis sp. nov., is described using scanning electron microscopy. The new species is morphologically similar to other species of the genus. It differs from A. alpigena by the number of rows of areolae (per 10 µm) and the length and shape of the spines, from A. helvetica by the valve height and number of rows of areolae (per 10 µm), and from A. pardata b... hiện toàn bộ
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