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    Wyświetlanie 1-24 z 24
    Tytuł:
    Potential for recultivation and for development of mariculture in Jamno Lake through flushing in with sea water
    Autorzy:
    Piesik, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/85127.pdf
    Data publikacji:
    1998
    Wydawca:
    Akademia Pomorska w Słupsku
    Tematy:
    recultivation method
    mariculture
    Lake Jamno
    freshwater lake
    lake
    organic bottom sediment
    eutrophication level
    pollution level
    sea water
    fishery
    recreation
    Źródło:
    Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 1998, 02
    1643-0115
    Pojawia się w:
    Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    First records of Ponto-Caspian gammarids in the Gulf of Gdańsk (Southern Baltic Sea)
    Autorzy:
    Dobrzycka-Krahel, A.
    Rzemykowska, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/49121.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    Azov Sea
    Baltic Sea
    Caspian Sea
    Dikerogammarus haemobaphes
    Dikerogammarus villosus
    Gdansk Gulf
    Obesogammarus crassus
    Ponto-Caspian gammarid
    Pontogammarus robustoides
    coastal zone
    drainage area
    freshwater lake
    gammarid species
    non-indigenous species
    Źródło:
    Oceanologia; 2010, 52, 4
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling freshwater inflows in a Shallow Lake
    Autorzy:
    McCorquodale, J. A.
    Georgiou, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/241327.pdf
    Data publikacji:
    2004
    Wydawca:
    Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
    Tematy:
    modeling
    hydrodynamics
    salinity
    intrusion
    diversion
    Opis:
    A three-dimensional primitive equation hydrodynamic model was used to investigate the impacts from freshwater introduction into a shallow brackish lake. The proposed effort is an attempt to reduce seasonal salinity intrusion from the Gulf of Mexico through tidal passes and navigation canals during periods of low tributary flows. The model is a modification of the Princeton Ocean Model.
    Źródło:
    Archives of Hydro-Engineering and Environmental Mechanics; 2004, 51, 1; 75-84
    1231-3726
    Pojawia się w:
    Archives of Hydro-Engineering and Environmental Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A comparative study on the parasite fauna of perch, Perca fluviatilis L., collected from a freshwater coastal lake brackish-water Baltic Sea and the interconnecting canal
    Autorzy:
    Wierzbicka, J.
    Wierzbicki, K.
    Piasecki, W.
    Smietana, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/837913.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    parasite
    fish parasite
    fish
    perch
    fresh water
    Perca fluviatilis
    comparative analysis
    Baltic Sea
    coastal lake
    Lake Resko
    brackish water
    Źródło:
    Annals of Parasitology; 2005, 51, 4
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A comparative study on the parasite fauna of perch, Perca fluviatilis L., collected from a freshwater coastal lake brackish-water Baltic Sea and the interconnecting canal
    Autorzy:
    Wierzbicka, J.
    Wierzbicki, K.
    Piasecki, W.
    Śmietana, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/2146417.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    parasite
    fish parasite
    fish
    perch
    fresh water
    Perca fluviatilis
    comparative analysis
    Baltic Sea
    coastal lake
    Lake Resko
    brackish water
    Opis:
    Background. Parasitological surveys of freshwater fishes rarely include comparisons between two ecologically different bodies of water. Such studies might help to understand processes of establishment of parasite faunas in estuary areas. The results obtained could also provide useful tools for discriminating various fish populations based on the composition of their parasite faunas. The present authors attempted to study such data from Resko Lake-a freshwater coastal lagoon (6 km? surface area), and the adjacent areas of the Baltic Sea. Resko Lake, located 12 km west of the city of Kołobrzeg, is shallow (1.5 m) and is connected to the sea through a small canal (1.3 km long, 30 m wide). Material and methods. The material was collected from April 1969 and July 1970. A total of 159 perch were collected, in this number 104 fish from the lake, 43 from the sea, and 12 from the canal. Results. A total of 32 parasite species were recovered from the fish necropsied. The parasites represented 7 higher taxa: Protozoa (3 species), Cestoda (4), Digenea (13), Nematoda (5), Acanthocephala (3), Mollusca (1), and Crustacea (3). The parasite fauna of perch from the sea was definitely more abundant (31 species) compared to that of the lake (21), and the canal (12 species). Infection parameters of 13 parasite species demonstrated significant differences between the locations studied. The infection level of 6 parasite species was significantly higher in perch from the sea: Bothriocephalus scorpii, Ligula sp., Brachyphallus crenatus, Camallanus truncatus, Hysterothylacium aduncum, and Echinorhynchus gadi. On the other hand, infection levels of 7 other species were higher at the lake: Triaenophorus nodulosus, Bucephalus polymorphus, Azygia lucii, Tylodelphys clavata, Camallanus lacustris, Acanthocephalus lucii, and Achtheres percarum. The infection parameters of the fish from canal were similar to those from the lake. Interesting observations were made on the seasonality of certain parasites of both lake- and Baltic perch. The presently observed differences between parasite faunas of the fish from ecologically different adjacent estuarine locations are certainly caused by diversified environmental conditions that affected the processes of formation of the parasite communities there. Among important factors that could affect compositions of the parasite faunas could have been: availability of the intermediate hosts, exchange of waters (Baltic water influxes to the lake), fish migrations (spawning), and finally the separate identity of the two fish stocks studied.
    Źródło:
    Wiadomości Parazytologiczne; 2005, 51, 4; 295-302
    0043-5163
    Pojawia się w:
    Wiadomości Parazytologiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Inter- and intra-specific variability in δ13C and δ18O values of freshwater gastropod shells from Lake Lednica, western Poland
    Autorzy:
    Apolinarska, K.
    Pełechaty, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/139408.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    C stable isotopes
    O stable isotopes
    recent gastropod shells
    freshwater
    inter-specific differences
    intraspecific variability
    lake Lednica
    izotopy stabilne
    izotopy węgla
    izotopy tlenu
    muszle ślimaków
    słodkowodne
    różnice międzygatunkowe
    zmienność wewnątrzgatunkowa
    jezioro Lednickie
    Opis:
    This study focuses on the inter- and intra-specific variability in δ13C and δ18O values of shells and opercula of gastropods sampled live from the littoral zone of Lake Lednica, western Poland. The δ13C and δ18O values were measured in individual opercula of Bithynia tentaculata and in shells of Bithynia tentaculata, Gyraulus albus, Gyraulus crista, Lymnaea sp., Physa fontinalis, Radix auricularia, Theodoxus fluviatilis and Valvata cristata. The gastropods selected for the study are among the species most commonly found in European Quaternary lacustrine sediments. The carbon isotope composition of the gastropod shells was species-specific and the same order of species from the most to the least 13C-depleted was observed at all sites sampled. Differences in shell δ13C values between species were similar at all sampling sites, thus the factors influencing shell isotopic composition were interpreted as species-specific. The δ18O values of shells were similar in all the species investigated. Significant intra-specific variability in shell δ13C and δ18O values was observed not only within the populations of Lake Lednica, which can be explained by heterogeneity of δ13C DIC, δ18O water and water temperature between the sites where macrophytes with snails attached were sampled, but also between individuals sampled from restricted areas of the lake’s bottom. The latter points to the importance of factors related to the ontogeny of individual gastropods.
    Źródło:
    Acta Geologica Polonica; 2017, 67, 3; 441-458
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Unique finds in palynological spectra: acetolyze resistant vegetative forms of freshwater dinoflagellate based on the Lake Młynek record from northeastern Poland
    Autorzy:
    Bińka, Krzysztof
    Welc, Fabian
    Nitychoruk, Jerzy
    Sieradz, Dominika
    Lewczuk, Antoni
    Powiązania:
    https://bibliotekanauki.pl/articles/2025037.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    freshwater dinoflagellate
    microfossil
    human impact
    Holocene
    Opis:
    The freshwater dinoflagellate represent microfossils which are very rarely noted in lake deposits. In Late Holocene sediments of the Lake Młynek, the Iława Lakeland, northern Poland, we identified intense blooms of algae of the genus Palatinus. They occurred primarily in the period of strong human impact during expansion of the Monastic State of the Teutonic Order. The most amazing thing is that samples in which conventional palynological maceration has been used dinoflagellate are represented by armored vegetative forms instead of cysts. During this laboratory processes, especially acetolysis, cellulosic thecae of armored forms should be destructed. This is the second known example of acetolysis resistant thecae of modern dinoflagellate, built by substance other than cellulose. Palatinus blooms were associated probably with the hydrotechnical works made by Teutonic Knights in the catchment, which caused supply and discharge of micronutrients e.g. selenium in the basin.
    Źródło:
    Studia Quaternaria; 2020, 37; 59-67
    1641-5558
    2300-0384
    Pojawia się w:
    Studia Quaternaria
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of some heavy metals in the selected freshwater fish species collected from Veeranam Lake Cuddalore District, Tamil Nadu, India
    Autorzy:
    Ambedkar, G.
    Kmalakkannan, J.
    Muniyan, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1178333.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Freshwater Fish
    Heavy metals
    Veeranam Lake
    Opis:
    The present study was conducted to assessment the some heavy metals, chromium, cadmium, copper, lead, iron, zinc and manganese concentrations in gill, liver, kidney, intestine and muscle of the selected freshwater fish Tilapia mossambica, Claris batrachus, Labeo rohita, Mystus vittatus and Cyprinus carpio communis of the Veeranam Lake Cuddalore district, Tamilnadu, India collected between January 2010- December 2010. Heavy metals concentrations varied in significantly depending upon the type of fish tissues and locations. In the selected freshwater fish, liver tissues appeared to have significantly highest level of chromium followed by Cd, Cu, Pb, Fe, Zn and Mn. The maximum level of chromium in liver tissue followed by the gill, kidney and intestine was found in the of Tilapia mossambica, Claris batrachus, Labeo rohita, Mystus vittatus and Cyprinus carpio communis while the minimum level of manganese was observed in the muscle tissue of Tilapia mossambica, Claris batrachus, Labeo rohita, Mystus vittatus and Cyprinus carpio communis. These levels of metals higher in the fish tissue may be due to increased fertilizers, agricultural wastes, industrial effluents and some anthropogenic activities high in the investigated area.
    Źródło:
    World Scientific News; 2017, 81, 2; 235-245
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Freshwater molluscs of the Wigry National Park
    Autorzy:
    Kolodziejczyk, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/84345.pdf
    Data publikacji:
    1999
    Wydawca:
    Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
    Tematy:
    freshwater mollusc
    mollusc
    Wigry National Park
    Lake Wigry
    animal species
    malacofauna
    Potamopyrgus antipodarum
    Dreissena polymorpha
    Źródło:
    Folia Malacologica; 1999, 07, 4
    1506-7629
    Pojawia się w:
    Folia Malacologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A zooplankton-based study of coastal lakes
    Zooplanktonowe badania jezior przymorskich
    Autorzy:
    Paturej, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/84905.pdf
    Data publikacji:
    2009
    Wydawca:
    Akademia Pomorska w Słupsku
    Tematy:
    zooplankton
    coastal lake
    estuary
    water body
    Polska
    coastal zone
    Baltic Sea
    Lake Sarbsko
    Lake Gardno
    Lake Wicko
    Lake Kopan
    Lake Bukowo
    Lake Jamno
    Lake Resko Przymorskie
    Lake Liwia Luza
    Lake Koprowo
    Lake Wicko Wielkie
    marine organism
    freshwater organism
    Opis:
    Numerous brackish estuarine water bodies are situated in the Polish Baltic Coastal Zone, including smaller and bigger lakes like Sarbsko, Łebsko, Gardno, Wicko, Kopań, Bukowo, Jamno, Resko Przymorskie, Liwia Łuża, Koprowo and Wicko Wielkie. Despite a similar genesis and geomorphological type, these lakes are characterized by different hydrological and hydrochemical conditions, determined by the predominance of terrestrial or marine factors. The origin of Polish coastal lakes and transboudary water bodies is closely related to the history of the Baltic Sea and the last glaciation. Coastal brackish waters have been inhabited by both marine and freshwater organisms.
    Pobrzeża Bałtyku obfitują w liczne zbiorniki słonawo-wodne o charakterze estuariów. Należą do nich mniejsze lub większe jeziora: Sarbsko, Łebsko, Gardno, Wicko, Kopań, Bukowo, Jamno, Resko Przymorskie, Liwia Łuża, Koprowo i Wicko Wielkie. Mimo niejednokrotnie podobnej genezy i typu geomorfologicznego, jeziora te charakteryzują się bardzo rożnym układem stosunków hydrologicznych i hydrochemicznych, ukształtowanych w wyniku przewagi czynnika lądowego lub morskiego. Geneza jezior przymorskich i akwenów transgranicznych na polskim wybrzeżu jest ściśle związana z historią Morza Bałtyckiego i zlodowaceniem skandynawskim. Przybałtyckie wody słonawe zostały zasiedlone zarówno przez organizmy pochodzenia morskiego, jak i słodkowodnego.
    Źródło:
    Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2009, 13 part II
    1643-0115
    Pojawia się w:
    Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dangerous relations: Pseudanodonta complanata and Dreissena polymorpha
    Autorzy:
    Ozgo, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/83714.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
    Tematy:
    dangerous relation
    Pseudanodonta complanata
    Dreissena polymorpha
    mussel
    bottom
    Lake Siecino
    freshwater mussel
    Źródło:
    Folia Malacologica; 2016, 24, 1
    1506-7629
    Pojawia się w:
    Folia Malacologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Occurrence Trichodina pediculus Ehrenberg, 1838 in Dgal Wielki Lake
    Autorzy:
    Bielecki, A
    Dzika, E.
    Pietrykiewicz, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/836917.pdf
    Data publikacji:
    2001
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    fish
    Tripartiella
    Trichodina pediculus
    roach
    Dipartiella
    occurrence
    Lake Dgal Wielki
    parasite
    Rutilus rutilus
    marine fish
    gill
    freshwater fish
    Trichodinidae
    Opis:
    Parasitological investigation were performed in Dgał Wielki, occurrence T. pediculus Ehrenberg 1838 on the roach gills were recorded. On the 277 examined roach in 9 roach specimens T. pediculus were found. Prevalence of roach infection was 3.25%, mean intensity 3.5 and abundance 0,11 parasite per number of fish examined. T. pediculus were found on fish in May and June.
    Źródło:
    Annals of Parasitology; 2001, 47, 1
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diatom assemblages in surface sediments of Lake Imandra (Russia, Murmansk region)
    Autorzy:
    Vokueva, Sofia
    Denisov, Dmitrii
    Powiązania:
    https://bibliotekanauki.pl/articles/2041694.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Arctic
    biodiversity
    bioindication
    water quality
    subarctic freshwater ecosystems
    Źródło:
    Polish Polar Research; 2021, 42, 4; 249-268
    0138-0338
    2081-8262
    Pojawia się w:
    Polish Polar Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Occurrence Trichodina pediculus Ehrenberg, 1838 in Dgal Wielki Lake
    Autorzy:
    Bielecki, A.
    Dzika, E.
    Pietrykiewicz, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/2147855.pdf
    Data publikacji:
    2001
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    fish
    Tripartiella
    Trichodina pediculus
    roach
    Dipartiella
    occurrence
    Lake Dgal Wielki
    parasite
    Rutilus rutilus
    marine fish
    gill
    freshwater fish
    Trichodinidae
    Opis:
    Parasitological investigation were performed in Dgał Wielki, occurrence T. pediculus Ehrenberg 1838 on the roach gills were recorded. On the 277 examined roach in 9 roach specimens T. pediculus were found. Prevalence of roach infection was 3.25%, mean intensity 3.5 and abundance 0,11 parasite per number of fish examined. T. pediculus were found on fish in May and June.
    Źródło:
    Wiadomości Parazytologiczne; 2001, 47, 1; 45-48
    0043-5163
    Pojawia się w:
    Wiadomości Parazytologiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of Microplastic Contamination in Sediments, Water and Aquatic Biota in Lake Beratan, Tabanan Regency, Bali Province – Indonesia
    Autorzy:
    Watiniasih, Ni Luh
    Hendrawan, I. Gede
    Nuarsa, I. Wayan
    Wiradana, Putu Angga
    Powiązania:
    https://bibliotekanauki.pl/articles/24201768.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    microplastics
    sediment
    water
    freshwater contamination
    Beratan Lake
    Opis:
    Microplastics (MPs) has become a very serious global threat, especially to the health of animals, humans and the environment. In this study we aim to investigate the contamination of MPs in sediment, air, and aquatic biota collected from the waters of Lake Beratan in Bali Province, Indonesia. Lake Beratan is one of the strategic areas that continues to develop as a tourist destination, agriculture and fisheries, as well as a source of water for daily needs. Sediment, water, and aquatic biota samples were collected from 4 stations that represent the Beratan Lake area. Each sample obtained was then followed by the pre-treatment stage using 5 M NaCl solution. Furthermore, the extraction process for each sample used wet oxidation peroxidation (WPO) with the addition of Fe (II) catalyst. The highest average weight of MPs in the sediment samples was obtained at the 1st sampling point of 2.53% which was dominated by soft fragments. The percentage of MPs weight in the water samples was varied at each sampling point with the highest obtained at the 4th point of 99.2% and was dominated by hard-shaped fragments at all sampling points. The collected aquatic biota was also contaminated by MPs of 68% in fish and 36.40% in shrimp. The types of MPs found in the digestive tract of aquatic biota are in the form of fragments, filaments, films and foam. These results indicate that the aquatic environment of Lake Beratan, Bali has MPs content that varies in sediment, water and aquatic biota which are often consumed by the local community. This must be of particular concern and further investigation, especially regarding the environmental management of the lake area and the relevant authorities in formulating regulations to reduce the harmful effects of MPs contamination.
    Źródło:
    Journal of Ecological Engineering; 2023, 24, 3; 323--332
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Unionidae of the lakes of the Krutynia River system (Mazurian Lakeland)
    Autorzy:
    Lewandowski, K.
    Jakubik, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/83071.pdf
    Data publikacji:
    2012
    Wydawca:
    Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
    Tematy:
    Unionidae
    lake
    Krutynia River
    Mazurian Lakeland
    unionid bivalve
    freshwater invertebrate
    population density
    Źródło:
    Folia Malacologica; 2012, 20, 1
    1506-7629
    Pojawia się w:
    Folia Malacologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Parasitic Metazoa in Freshwater Bream (Abramis brama L.) from selected lakes of the Drawa watershed area
    Autorzy:
    Raulin, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/6663.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    parasite
    Metazoa
    Tylodelphys clavata
    Ergasilus sieboldi
    Raphidascaris acus
    Caryophyllaeus laticeps
    Posthodiplostomum cuticola
    Asymphylodora imitans
    Diplozoon paradoxum
    fish
    freshwater fish
    bream
    Abramis brama
    lake
    Drawa River
    watershed zone
    Źródło:
    Annals of Parasitology; 2016, 62, Suppl.
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Two Oxytrichids from the Ancient Lake Biwa, Japan, with Notes on Morphogenesis of Notohymena australis (Ciliophora, Sporadotrichida)
    Autorzy:
    Hu, Xiaozhong
    KUSUOKA, Yasushi
    Powiązania:
    https://bibliotekanauki.pl/articles/763654.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
    Tematy:
    Apoamphisiella, freshwater ciliate, infraciliature, Notohymena, ontogenesis, Stichotrichia
    Opis:
    Two oxytrichid freshwater ciliates, Apoamphisiella tihanyiensis (Gellért and Tamás, 1958) Foissner, 1997 and Notohymena australis (Foissner and O’Donoghue, 1990) Berger, 1999, were recorded for the first time in Lake Biwa, a 4-million-year-old lake located at the Shiga Prefecture in Japan. Their morphology was investigated based on observations of live and protargol-impregnated material. Based on the present observation and previous descriptions, A. tihanyiensis is characterized by having an elliptical body shape, yellowish cortical granules, two long frontoventral rows, enlarged frontal and transverse cirri, highly variable numbers of frontoventral, and postoral ventral cirri, and six to 11 caudal cirri arranged in three short rows. New data confirm the presence of pretransverse ventral cirri in this species. Morphologically, N. australis differs from its congeners in having the following combination of characters: greenish cortical granules, the cirrus V/2 located slight anterior to the leftmost transverse cirrus, dorsal kinety 3 almost as long as body, and seven to 10 caudal cirri arranged in three short rows. Morphogenesis in N. australis shows the same pattern as in N. apoaustralis but differs from that of other congeners in the origin of oral primordium and the formation of more than just three caudal cirri.
    Źródło:
    Acta Protozoologica; 2015, 54, 2
    1689-0027
    Pojawia się w:
    Acta Protozoologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Pliocene Paludina Lake of Pannonian Basin : new evidence from northern Serbia
    Autorzy:
    Rundić, L.
    Vasić, N.
    Životić, D.
    Bechtel, A.
    Knežević, S.,
    Cvetkov, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/191318.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    flora
    freshwater fauna
    lacustrine palaeoenvironment
    lignite petrology
    organic geochemistry
    sedimentary facies
    Opis:
    This study from the Sremski Karlovci clay pit in northern Serbia sheds new light on the physicochemical conditions, ecology and evolution of the Paludina Lake – the Pliocene successor of the late Miocene giant Lake Pannon hosted by the Pannonian Basin. The multidisciplinary study combines sedimentology, sequence stratigraphy, biostratigraphy, palaeontology, palaeobotany, coal petrology, organic geochemistry and magnetic mineralogy. The sedimentary succession studied represents the lake margin at the foot of the Fruška Gora ridge. Sedimentary facies reveal minor and major lake-level changes, including a forced regression with fluvial valley incision in the succession middle part and the ultimate emergence and covering of the lake floor by Pleistocene loess. Mollusc and ostracod fauna indicates an oligohaline shallow cool-water environment, no deeper than 5–6 m, with an active inflow of spring water. The lake local depth during transgression maxima did not exceed 20 m. Palynological and geochemical analyses indicate a rich and diversified assemblage of gymnosperm plants with a contribution of angiosperms, weeds and microbial biomass in the peat-forming suboxic to oxic coastal swamp environment. Maceral analysis of organic matter shows a prevalence of huminite, accompanied richly by inertinite in lignite and by liptinite in clay. The Pleistocene shift to terrestrial semiarid environment resulted in oxidizing groundwater conditions, with the reddening of sediments around a fluctuating groundwater table and the diagenetic transformation of bacteria-derived greigite into magnetite. In regional stratigraphy, the occurrence of Viviparus neumayri Brusina in the lower half of the succession indicates the Lower Paludina Beds of Dacian Stage (early Zanclean age). Other gastropods and certain ostracodes indicate transition to the Middle Paludina Beds of lower Romanian Stage (late Zanclean–early Piacenzian). The upper half of the succession lacks age-diagnostic fossils and is considered to represent Middle Paludina Beds with a possible relic of Upper Paludina Beds at the top.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2016, 86, 2; 185-209
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Alien tropical snail, the red-rimmed melania Melanoides tuberculata Müller, 1774 (Thiaridae) from artificial lake in Warsaw, Central Poland
    Autorzy:
    Maciaszek, Rafał
    Marcinek, Dorota
    Sosnowski, Witold
    Powiązania:
    https://bibliotekanauki.pl/articles/1068641.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Melanoides tuberculata
    Pole Mokotowskie park complex
    aquarium
    freshwater mollusc
    invasive species
    ornamental pet
    tadpole snail
    Opis:
    This paper describes the case of introduction of an exotic ornamental snail, Melanoides tuberculata (Thiaridae) in an artificial water reservoir in Pole Mokotowskie park complex in Warsaw, Poland. Observed individuals have been identified, described and presented in photographs. The basic physicochemical parameters of water were analyzed and prospects for the population were evaluated. Another second species of aquatic ornamental snail - Physa acuta (Physidae) was found in the same water reservoir. The observation was analyzed with available literature describing introductions of alien species of aquatic origin in Polish waters.
    Źródło:
    World Scientific News; 2019, 132; 285-290
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Alien freshwater fish, Xiphophorus interspecies hybrid (Poeciliidae) found in artificial lake in Warsaw, Central Poland
    Autorzy:
    Maciaszek, Rafał
    Marcinek, Dorota
    Eberhardt, Maria
    Wilk, Sylwia
    Powiązania:
    https://bibliotekanauki.pl/articles/1068647.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Pole Mokotowskie park complex
    Xiphophorus
    aquarium
    green swordtail
    invasive species
    ornamental pet
    southern platyfish
    stone maroko
    variatus platy
    Opis:
    This paper describes an introduction of aquarium ornamental fish, Xiphophorus interspecies hybrid (Poeciliidae) in an artificial water reservoir in Pole Mokotowskie park complex in Warsaw, Poland. Caught individuals have been identified, described and presented in photographs. Measurements of selected physicochemical parameters of water were made and perspectives for the studied population were evaluated. The finding is discussed with available literature describing introductions of alien species with aquaristical origin in Polish waters.
    Źródło:
    World Scientific News; 2019, 132; 291-299
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Palaeoenvironmental and palaeoclimatic inferences based on X-ray computer tomography: a case study of alkaline lake deposits in Hungary
    Autorzy:
    Alzoubi, Nour N.
    Gulyas, Sandor
    Geiger, Janos
    Powiązania:
    https://bibliotekanauki.pl/articles/2204374.pdf
    Data publikacji:
    2023
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    freshwater carbonates
    CT analysis
    statistical properties
    palaeoenvironment
    Holocene
    słodka woda
    tomografia komputerowa
    właściwości statystyczne
    paleośrodowisko
    Holocen
    Opis:
    Widely distributed freshwater carbonate sediments, i.e., limestone, dolomitic limestone and dolomite, developed in inter-dune alkaline ponds of the Danube-Tisza Interfluve in the centre of the Carpathian Basin during the Holocene. The key parameters that determine the formation of any given type of carbonate mineral (calcite, dolomite) are temperature, evaporation rate, pH and ion concentrations, in addition to CO2 absorption by aquatic plants. CT analysis is capable of recording small-scale density variations attributable to compositional differences of sedimentary rocks. As the type and proportion of rock-forming minerals and other components is an artifact of past environmental and climatic conditions, CT values may act as potential palaeoenvironmental proxies. The present study compares variations in rock-forming components obtained for freshwater carbonates utilizing the CT method with already available geochemical and palaeoecological proxy data. Variations in molluscan ecology and isotope geochemistry, sedimentation times and CT-based rock density values all indicate the relevance of millennial-scale, climate-driven changes in carbonate formation. As previously observed, the emergence of colder conditions in the North Atlantic, which resulted in increased cyclonic activity and heavier rainfall in western Europe and the Danube watershed area between 10.3 and 9.3 kyr cal BP, resulted in the emergence of humid conditions favouring a rise in the groundwater table at our site and precipitation of calcite from pore waters as opposed to high-magnesium calcite. This is clearly reflected in a negative shift in CT density values in our dated rock samples.
    Źródło:
    Geologos; 2023, 29, 1; 33-49
    1426-8981
    2080-6574
    Pojawia się w:
    Geologos
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Centrohelid Heliozoans (Centroplasthelida Febvre-Chevalier et Febvre, 1984) from Different Types of Freshwater Bodies in the Middle Russian Forest-steppe
    Autorzy:
    Prokina, Kristina I.
    Zagumyonnyi, Dmitry G.
    Tikhonenkov, Denis V.
    Powiązania:
    https://bibliotekanauki.pl/articles/52258270.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
    Tematy:
    centrohelids
    heliozoans
    protists
    morphology
    electron microscopy
    sphagnum bog
    lake
    river
    Opis:
    Species diversity of centrohelid heliozoans in different types of freshwater bodies (forest lakes, floodplain lakes, sphagnum bogs, and river) in the Middle Russian forest-steppe was studied. The morphology of cell coverings (scales and spicules) were observed using scanning and transmission electron microscopy. A total of 20 species of  centrohelid heliozoans from five families (Acanthocystidae, Pterocystidae, Raphidiophryidae, Raphidocystidae, and Choanocystidae) and six genera (Acanthocystis, Raineriophrys, Pterocystis, Raphidiophrys, Raphidocystis, and Choanocystis) as well as unidentified Centrohelea species and a Heterophrys-like organism were found. Morphological descriptions and electron micrographs are provided. The most common species were Acanthocystis nichollsi, Raphidiophrys capitata, and a Heterophrys-like organism. The highest species diversity was observed in terrace forest lakes, whereas the lowest was seen in sphagnum bogs. Four species (Acanthocystis costata, A. elenazhivotovae, A. mikrjukovii, and A. spinosa) were found for the first time since their original description. Three species (Acanthocystis spinosa, Raphidiophrys capitata, and Pterocystis pulchra) are new records for Russia. The distribution of the observed morphospecies confirms the cosmopolitanism of many centrohelids and highlights the importance of the type of water body and microbiotope in forming the species composition. The obtained data on the morphology of studied scales supplements our knowledge of the intraspecific variability of centrohelid heliozoans.
    Źródło:
    Acta Protozoologica; 2018, 57, 4; 243-266
    0065-1583
    1689-0027
    Pojawia się w:
    Acta Protozoologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Taxonomic and Morphogenetic Description of the Freshwater Ciliate Aponotohymena isoaustralis n. sp. (Ciliophora; Oxytrichidae) Isolated from Sanjay Lake, Delhi, India
    Autorzy:
    Gupta, Renu
    Abraham, Jeeva Susan
    Somasundaram, Sripoorna
    Toteja, Ravi
    Makhija, Seema
    El-Serehy, Hamed A.
    Powiązania:
    https://bibliotekanauki.pl/articles/52376317.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
    Tematy:
    morphogenesis
    morphology
    oxytrichid
    phylogeny
    SSU rDNA
    Aponotohymena
    Opis:
    Morphology, morphogenesis and molecular phylogeny of a freshwater oxytrichid ciliate, Aponotohymena isoaustralis n. sp. collected from Sanjay Lake (28°36′51″N, 77°18′14″E), Delhi, India, were studied. The described species is characterized by a flexible body, with body size (in vivo) of about 148 × 46 µm and yellowish green cortical granules. Morphological characters exhibit: undulating membranes in Notohymena–pattern; two macronuclei and absence of micronucleus (amicronucleate); about 36 adoral membranelles; 18 frontoventral-transverse (FVT) cirri; one right and one left marginal row separated posteriorly; 6 dorsal rows; 7 caudal cirri arranged in 2 + 2 + 3 pattern (constant). In the present study, a detailed description of all the developmental stages is also provided. Prominent distinguishing features of the new species are the absence of micronucleus, 7 caudal cirri (constant), yellowish green cortical granules aligned along the margins and irregularly distributed throughout the cell. They may also be randomly concentrated as clusters along the left margin and posterior end of the cell. Molecular phylogeny based on small subunit rDNA sequence data suggests sister relationship of Aponotohymena isoaustralis n. sp. with Notohymena apoaustralis and Aponotohymena australis (Notohymena australis) which cluster in a clade with Paraurostyla weissei and Paraurostyla coronata. Further analysis of nucleotide sequence of SSU rDNA also suggests that A. isoaustralis n. sp. is distinct from the type species A. australis.
    Źródło:
    Acta Protozoologica; 2017, 56, 2; 93-107
    0065-1583
    1689-0027
    Pojawia się w:
    Acta Protozoologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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