Inland Water Biology最新文献

{"title":"Free-Living Flatworms (Turbellaria)","authors":"E. M. Korgina","doi":"10.1134/s1995082923070040","DOIUrl":"https://doi.org/10.1134/s1995082923070040","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The results of studies on the fauna, ecology, and biological resources of free-living flatworms are presented. The data on the qualitative and quantitative development of turbellarians in the mouth parts of the tributaries of the reservoir are presented. The species composition, including 46 species of worms, is given<b>.</b></p>","PeriodicalId":50359,"journal":{"name":"Inland Water Biology","volume":"49 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140887067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phytoplankton Change Along the Length of the Ural River under Conditions of Eutrophication","authors":"","doi":"10.1134/s1995082924010061","DOIUrl":"https://doi.org/10.1134/s1995082924010061","url":null,"abstract":"<span> <h3>Abstract</h3> <p>The change in phytoplankton along the length of the Ural River from Verkhneuralsk to Orenburg (on a site of more than 1000 km) has been studied for the first time. The powerful eutrophying effect of Magnitogorsk on the river for more than 150 km has been revealed. It manifests itself in the fact that the phytoplankton biomass in this area increases greatly, averaging about 15 mg/L (with the dominance of cyanobacteria <em>Microcystis aeruginosa</em>), whereas the species diversity index (Shannon index), on the contrary, reaches extremely low values of 0.25. This indicates a significant oppression of the plankton community and deterioration of water quality. In the Ural River above this site (from Verkhneuralsk to Magnitogorsk reservoir), as well as below it (from Orsk to Orenburg), phytoplankton indicators correspond to the usual values of 1.6–1.7 mg/L of biomass, with a Shannon index of 3.3–3.5 (on average for each site). This suggests that the conditions for the existence of plankton in the upper and lower areas are favorable. At the same time, the sites differ in the composition of algae: the first is dominated by diatoms and the second is mainly dominated by green algae. This may be due to geographical factors: in the north, the Ural River flows in the forest-steppe zone, and in the south it flows in the steppe.</p> </span>","PeriodicalId":50359,"journal":{"name":"Inland Water Biology","volume":"17 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140168109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ambivalence of Planktonic Invaders and Transformation of Communities","authors":"","doi":"10.1134/s1995082924010164","DOIUrl":"https://doi.org/10.1134/s1995082924010164","url":null,"abstract":"<span> <h3>Abstract</h3> <p>The ambivalence of planktonic invaders has been studied using the example of ecosystem effects of the invasive cladoceran <em>Cercopagis pengoi</em> (Ostroumov, 1891) in the Vistula Lagoon of the Baltic Sea. The influence of the invader on the taxonomic structure and productivity of plankton is studied. It is discovered that, in the long term, the predation pressure of <em>C. pengoi</em> on zooplankton has decreased; the abundance, biomass, and production of the dominant species of Rotifera, Cladocera, and Copepoda also declined. The ne-gative impact of <em>C. pengoi</em> on the planktonic community is reflected in a reduction in the food supply of juvenile Baltic herring and other planktivorous fish. The wide ecological niche of <em>Cercopagis</em> contributes to the expansion of its range, which can lead to a reduction in populations of phytophagous crustaceans, increased harmful algae blooms, and the further deterioration of the food supply of fish.</p> </span>","PeriodicalId":50359,"journal":{"name":"Inland Water Biology","volume":"23 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140168218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pulse Feeding and Pulse Growth: A Highly Adaptive Strategy of Heterotrophic Dinoflagellates Oxyrrhis marina","authors":"","doi":"10.1134/s1995082924010073","DOIUrl":"https://doi.org/10.1134/s1995082924010073","url":null,"abstract":"<span> <h3>Abstract</h3> <p>Pulse feeding and growth of the Black Sea strain of dinoflagellates <em>Oxyrrhis marina</em> (Dujardin, 1841) (OXY–IBSS), equivalent spherical diameter (ESD) (23.5 ± 3.1 μm) have been studied under experimental conditions simulating phytoplankton blooms. Microalgae <em>Phaeodactylum tricornutum</em> (<em>P</em>, ESD 3.4 ± 0.3 μm), <em>Isochrysis galbana</em> (<em>I,</em> ESD 3.7 ± 0.4 μm), <em>Tetraselmis suecica</em> (<em>T,</em> ESD 6.1 ± 0.9 μm), and <em>Rhodomonas salina</em> (R, 7.4 ± 0.7 µm) were used as food objects in a one-component and three-component suspensions. Microalgae concentrations (∼10⁶ cells/mL for <em>T</em> and <em>R</em>; up to ∼4 × 10⁶ cells/mL for <em>P</em> and <em>I</em>) were chosen to ensure their equal total carbon biomass ∼0.02 μg C/μL in the food mixtures at the beginning of the experiment<em>.</em> Under <em>ad libitum</em> conditions, the maximum clearance rates of the OXY–IBSS reached 0.1–0.5 μL ind./day, and the grazing rate of microalgae was 34–44 cells/(ind h) for <em>P</em> and <em>I,</em> and 2–11 cells/(ind. h) for <em>R</em> and <em>T,</em> respectively. The grazing rate of microalgae in carbon units was significantly higher when feeding on <em>I</em> (3.9 ng C/(ind. day)) and significantly less when fed with a mixture of microalgae <em>TRP</em> (1.5 ng C/(ind. day)). Maximum abundance of OXY–IBSS, achieved within 3 or 4 days (by the time the microalgae concentration decreased below threshold), varied from 19 × 10³ ind./mL (<em>P</em>) to 43 × 10³ ind./mL (<em>I</em>). In the absence of food, dinoflagellates <em>O. marina</em> turned to cannibalism, and within 4 days the oscillating fluctuations (within 50%) in their number took place. Although the specific population growth rate (μ, day^-1) of OXY–IBSS was higher when feeding on small cells (∼2 days^–1 on <em>I</em>), the gross growth efficiency (GGE) of OXY–IBSS was significantly higher when fed on large (<em>T</em> and <em>R</em>) microalgae (26–29% <em>vs.</em> 14–15%). At lower daily rations (DRs) when fed with the mixture <em>TRP,</em> the GGE of OXY–IBSS was significantly higher (41%) when compared to other nutritional conditions. The feeding strategy of opportunistic predator <em>O. marina</em> on diverse (in terms of size and chemotaxonomic characteristics) mixtures of prey lay in a flexible choice between high specific population growth rate, or high gross growth efficiency, that obviously gives the populations of this species the advantages over other protists under conditions of the pulsed phytoplankton blooms.</p> </span>","PeriodicalId":50359,"journal":{"name":"Inland Water Biology","volume":"23 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140167841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding Relationship between Length and Weight with Otolith Dimension of Tenualosa ilisha from Hooghly River (India)","authors":"Bhuban Mohan Majhi, Lianthumluaia, Uttam Kumar Sarkar, Ashim Kumar Nath","doi":"10.1134/s1995082923060160","DOIUrl":"https://doi.org/10.1134/s1995082923060160","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The Indian hilsa shad, <i>Tenualosa ilisha</i> (Hamilton, 1822), is a highly valued fish of the Indo Pacific region. This paper represents the length-weight relationships (LWR), condition factor (<i>K</i>), relative condition factor (<i>K</i>_<i>n</i>), and otolith dimension of hilsa, throughout the Hooghly River (West Bengal) from January to December 2020. The value of exponent “b” in the equation <i>W</i> = <i>cL</i>^b was 2.6 for the species. It suggests the growth rate almost follows the cube law. Most of the population under study complied with the ideal b-value. Regression analysis indicated a high positive correlation between length and weight in the species (<i>R</i>² = 0.76). The <i>K</i>_<i>n</i> shows their general well-being to be good in the river. The relationships between total fish weight and otolith biometry parameters such as long arm (<i>L.A</i>) length, short arm (<i>S.A</i>) length, <i>L.A</i>/<i>S.A</i>, and diameter (<i>D</i>) were examined. Linear regressions have represented fish weight-otolith biometry relationships. Regression analysis indicated a strong positive relationship between body weight and otolith length (<i>R</i>² = 0.848), otolith diameter (<i>R</i>² = 0.803), and short arm length of otolith (<i>R</i>² = 0.678), but no relationship was found between <i>L.A</i>/<i>S.A</i> of otolith and fish weight. This strong relationship between fish weight and otolith length and diameter of <i>T. ilisha</i>, reflects that otolith length and diameter could become the best predictor of fish weight.</p>","PeriodicalId":50359,"journal":{"name":"Inland Water Biology","volume":"79 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138820553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Content of Pigments in the Bottom Sediments in a Small Valley Channel Reservoir","authors":"L. E. Sigareva, N. A. Timofeeva, V. V. Zakonnov","doi":"10.1134/s1995082923060226","DOIUrl":"https://doi.org/10.1134/s1995082923060226","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This paper presents the first data on the content of plant pigments in the bottom sediments of the Uvod Reservoir (Volga basin, Russia), unique in its hydrological regime, which support the hypothesis of more intensive carbon accumulation in small water bodies. It is established that the average concentration of chlorophyll <i>a</i> and its transformation products at the stations is 62.6 ± 10.0 μg/g of dry sediment, 35.2 ± 4.5 mg/(m² mm) of wet sediment, and 0.73 ± 0.09 mg/g of organic matter of sediments. The ratio of organic carbon to the pigment concentration varies within 400–6000, depending on the type of bottom sediments, which significantly exceeds the values known for macrophytes and phytoplankton. Despite the features of hydrodynamics and geomorphology of the reservoir, the spatial distribution of sedimentary pigments is consistent with the structure of the bottom sediment complex, which is typical for water bodies of different types. A decrease in differences between the pigment concentrations in the sandy and silty biotopes of the Uvod Reservoir compared to the Upper Volga is noted. The average concentration of chlorophyll <i>a</i> with pheopigments (58.5 ± 6.7 μg/g of dry sediment), calculated considering the areas of bottom sediments of different types, in the Uvod Reservoir is 2.3 times higher than in the Gorky Reservoir (25.3 ± 1.5 μg/g), from which water inflows through the Volga–Uvod Canal. According to the content of sedimentary pigments, the trophic state of the reservoir is mesotrophic. Features of eutrophication in the Uvod Reservoir are more distinctly expressed than in the Gorky Reservoir.</p>","PeriodicalId":50359,"journal":{"name":"Inland Water Biology","volume":"33 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138820959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Salinity Tolerance and Seasonal and Multiyear Dynamics of Biting Midges (Diptera, Ceratopogonidae) in Macrozoobenthos Communities of Saline Rivers (the Lake Elton Basin, Russia)","authors":"L. V. Golovatyuk","doi":"10.1134/s199508292306010x","DOIUrl":"https://doi.org/10.1134/s199508292306010x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The results of long-term studies of biting midges (Diptera, Ceratopogonidae) in macrozoobenthos communities of five saline rivers of the hyperhaline Lake Elton basin are presented. The fauna of Ceratopogonidae includes five halophilic and euryhaline species, among which representatives of the tribe Sphaeromiini predominate. The taxonomic composition of the family differs in rivers with different levels of salinity. Species <i>Sphaeromias miricornis</i> and <i>Culicoides riethi</i> are widely distributed in the mesohaline Khara, Lantsug, and Bolshaya Samoroda rivers, and <i>Palpomyia schmidti</i> is widely distributed in the polyhaline Chernavka and Solyanka rivers. Two generations of <i>S. miricornis</i> and three generations of <i>P. schmidti</i> are recorded. The emergence of the first generation of <i>P. schmidti</i> occurs in mid-May; <i>S. miricornis</i> emerges in late May to early June. There is an increase in the mean annual abundance and biomass of biting midges in polyhaline rivers when compared with mesohaline rivers.</p>","PeriodicalId":50359,"journal":{"name":"Inland Water Biology","volume":"486 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138821811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural Changes of Phyto- and Zooplankton under the Influence of Climate Change and Anthropogenic Load (Lake Baikal, Russia)","authors":"N. A. Bondarenko, I. V. Tomberg, O. G. Pen’kova, N. G. Sheveleva","doi":"10.1134/s1995082923060056","DOIUrl":"https://doi.org/10.1134/s1995082923060056","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The results of a contemporary study of hydrochemical parameters, structure, and quantitative indicators of phyto- and zooplankton in the Maloe More Strait of Lake Baikal are presented. When comparing new data and those obtained in the 20th century, a number of changes are observed in the functioning of the phyto- and zooplankton of the strait in recent years, similar to other areas of the lake. The main rearrangements are noted for spring phytoplankton: interannual cyclical dynamics with the maximum development of large-cell diatoms of the Baikal complex is disturbed; the structure of dominant species has changed. Due to a sharp increase in the rotifer abundance, the zooplankton abundance in the pelagial has increased by an order of magnitude. In 2021, with the intensive vegetation of diatoms, all zooplankton groups were suppressed. In Mukhor Bay, the changes were associated with an increase in the rotifer abundance persisting until 2021. In 2021, a decrease in the total plankton abundance was noted, but the relative share of taxonomic groups did not change, and rotifers dominated.</p>","PeriodicalId":50359,"journal":{"name":"Inland Water Biology","volume":"35 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138820793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of the Rate of Changes in the COX1 Gene on Body Size and Sexual Selection in Carp Hybridization","authors":"V. V. Stolbunova, E. A. Borovikova","doi":"10.1134/s199508292306024x","DOIUrl":"https://doi.org/10.1134/s199508292306024x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The influence of mtDNA cytochrome <i>c</i>-oxidase I gene fragment variability on body length has been studied in 12 species of cyprinids, which may have hybrids with <i>Rutilus rutilus</i> L. and <i>Abramis brama</i> L., and in reciprocal hybrids (RA and AR) and alloplasmatic backcrosses (_ARR and _RAA) of roach (R) and bream (A). It has been established that the rate of nucleotide substitutions in COX1 is negatively related not only to body size but also to fish lifespan which differentiates them into two groups: group I (species with a high rate of COX1 changes and a relatively small body size) and group II (species with low sequence variability and relatively large body size). The boundary for the distinguished groups runs between species of the same genus, <i>Leuciscus leuciscus</i> and <i>L. idus:</i> with a twofold decrease in the rate of substitutions in ide, a twofold increase in body size and lifespan occurs, which indicates a decrease in the rate of cellular respiration and free radical leak, and the exact mitonuclear match respiratory complexes. Presumably, the decrease in the rate of COX1 changes in species of group II and in bleak <i>Alburnus alburnus</i> is associated with an increase in the size of the genome, which provides the additional protection of genes from chemical mutagens and, regardless of body size, reduces the rate of aerobic metabolism. It has been experimentally shown that mtDNA affects body length. When bream mtDNA is included in the roach nuclear genome, _ARR backcrosses have the body length of a bream and high viability, while _RAA backcrosses with roach mtDNA and the bream nuclear genome inherit the roach body length and reduce viability. Species of group II are not able to effectively use the highly polymorphic mtDNA of species of group I, which is also manifested by a violation of the inheritance of a longer bream body length in RA hybrids and leads to reproductive isolation. Group I species, such as <i>Rutilus rutilus,</i> can include mtDNA of both groups in their genome, which underlies sexual selection in hybridization. Accordingly, sexual size dimorphism has a genetic origin, and the body size for a potential partner can be a signal for determining the mitonuclear compatibility of genomes in respiratory complexes.</p>","PeriodicalId":50359,"journal":{"name":"Inland Water Biology","volume":"47 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138820904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"State of Zooplankton and Zoobenthos in the Water Bodies of the Lake Pyasino Basin after a Technogenic Accident","authors":"A. G. Kupriyashkin, A. B. Prokudin, A. M. Shapkin","doi":"10.1134/s1995082923060147","DOIUrl":"https://doi.org/10.1134/s1995082923060147","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The taxonomic composition and quantitative characteristics of zooplankton and zoobenthos of several water bodies of natural origin have been studied in the Norilsk industrial region and adjacent territories a year after a technogenic accident. All age groups of most invertebrate species have been recorded at most sampling sites. Slightly disturbed watercourses are registered in the source of the Pyasina River and in the Daldykan River, located upstream the confluence of the Bezymyanny stream. These water bodies may serve as the background reservoirs for organizing restoration activities accompanied by an assessment of the ecological well-being of planktonic and bottom fauna of freshwater ecosystems.</p>","PeriodicalId":50359,"journal":{"name":"Inland Water Biology","volume":"38 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138820843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}