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Journal articles on the topic 'Freshwater plankton'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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1

Trivedi, Seema, and Anupriya Karode. "DIVERSITY OF PHYTOPLANKTON IN KSHIPRA RIVER- TRIVENI STATION, UJJAIN (M.P.)." International Journal of Research -GRANTHAALAYAH 3, no. 9SE (September 30, 2015): 1–4. http://dx.doi.org/10.29121/granthaalayah.v3.i9se.2015.3175.

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Planktons are minute organisms and essential links in food chain in aquatic system. Plankton is most importance in the freshwater ecosystem as these are the main source of energy and having a very high nutritive value .The present study is going to centralize on kshipra river, Ujjain (M.P.) in year 2014. The plankton were collected, counted and identified by using the method suggested by APHA and Prescott. The study among all these phytoplankton Bacillariophyceae was recorded as a dominant class in Kshipra River.

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2

del Giorgio, Paul A., and Josep M. Gasol. "Biomass Distribution in Freshwater Plankton Communities." American Naturalist 146, no. 1 (July 1995): 135–52. http://dx.doi.org/10.1086/285790.

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3

Dumont, Henri J. "Rotifers, the jelly plankton of freshwater." Hydrobiologia 593, no. 1 (August 28, 2007): 59–66. http://dx.doi.org/10.1007/s10750-007-9047-8.

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4

Van Donk, Ellen. "Chemical information transfer in freshwater plankton." Ecological Informatics 2, no. 2 (June 2007): 112–20. http://dx.doi.org/10.1016/j.ecoinf.2007.03.002.

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5

Paloheimo, J. E., and R. R. Fulthorpe. "Factors Influencing Plankton Community Structure and Production in Freshwater Lakes." Canadian Journal of Fisheries and Aquatic Sciences 44, no. 3 (March 1, 1987): 650–57. http://dx.doi.org/10.1139/f87-079.

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Relationships among biomasses and levels of production of nannoplankton, netplankton, herbivorous zooplankton, and carnivorous zooplankton, as well their dependence on environmental parameters, were studied in 26 central Ontario lakes. Planktonic biomasses were only weakly correlated with each other. Correlations were improved by converting biomasses to production estimates using size-specific turnover rate corrections on size-structured data. Further use of size-structured data was of limited value. Sets of environmental parameters, particularly the water chemistry data, were better predictors of planktonic biomasses and productions than other biotic (predator/prey) data. Total Kjeldahl nitrogen was a better predictor of total plankton production estimates than total phosphorus. Lakes could not be clustered into stable community types due to the large year-to-year fluctuations in the data.

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Rojo, Carmen, María A. Rodrigo, Guillem Salazar, and Miguel Álvarez-Cobelas. "Nitrate uptake rates in freshwater plankton: the effect of food web structure." Marine and Freshwater Research 59, no. 8 (2008): 717. http://dx.doi.org/10.1071/mf08023.

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Nitrate incorporation rates by primary producers and the transfer of nitrogen to upper planktonic food web levels in different seasons (spring and summer of different years) were studied using a microcosm experimental approach. The study communities were natural plankton communities from Colgada Lake (central Spain), which is heavily polluted by nitrate. Natural δ15N in phytoplankton and zooplankton was measured and experiments were performed on the 15N supply. Naturally derived δ15N varied from 7.4 to 8.6‰ and from 10.0 to 16.8‰ in phytoplankton and zooplankton respectively. Nitrogen incorporation rates ranged from 0.006 to 0.036 μM h–1 and from 0.0004 to 0.0014 μM h–1 in phytoplankton and zooplankton respectively. The differences in natural δ15N levels and nitrogen incorporation rates between plankton fractions from seasonally different communities reported in the present study suggested that the nitrogen uptake by planktonic communities in Colgada Lake depend on different combinations of dominant zooplankters and phytoplankton size structure. A higher level of nitrogen uptake by phytoplankton occurred when small algae were dominant without competitors (larger algae) or main predators (herbivorous zooplankters). This was because copepods, with the lowest zooplankton nitrogen uptake, were dominant. Phytoplankton nitrogen uptake was lower when big algae were dominant.

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7

Twining, Benjamin S., Michael R. Twiss, and Nicholas S. Fisher. "Oxidation of Thallium by Freshwater Plankton Communities." Environmental Science & Technology 37, no. 12 (June 2003): 2720–26. http://dx.doi.org/10.1021/es026145i.

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8

Sommer, Ulrich. "Trophic Cascades in Marine and Freshwater Plankton." International Review of Hydrobiology 93, no. 4-5 (October 2008): 506–16. http://dx.doi.org/10.1002/iroh.200711039.

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9

Caumette, G., I. Koch, K. House, and K. J. Reimer. "Arsenic cycling in freshwater phytoplankton and zooplankton cultures." Environmental Chemistry 11, no. 5 (2014): 496. http://dx.doi.org/10.1071/en14039.

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Environmental context Understanding how arsenic is changed from toxic to non-toxic chemical forms in lakes and rivers is important in understanding the overall risk from arsenic. Freshwater plankton exposed in laboratory cultures to different sources of toxic inorganic arsenate formed arsenosugars, but at higher exposure levels, in water and through contaminated sediment, inorganic arsenate remained unchanged. In arsenic-contaminated freshwater bodies, plankton may provide a source of toxic inorganic arsenic to consumers. Abstract Freshwater phytoplankton (Chlamydomonas) and zooplankton (Daphnia pulex) were exposed to arsenic to trace the arsenic transformations and the formation of organoarsenic compounds at the base of the freshwater food chain. Plankton were cultured in artificial lake water, and exposed to arsenic through several pathways, hypothesised to be the main exposure sources: through water, food and contaminated sediments. High performance liquid chromatography–inductively coupled plasma–mass spectrometry and X-ray absorption spectroscopy were used to determine arsenic speciation in the studied organisms, and X-ray fluorescence mapping was used to locate the arsenic in a single Daphnia specimen. The results show that the formation of methylated arsenic compounds and arsenosugars by the zooplankton organisms was independent of the exposure route, but instead dependent on arsenic concentration in the environment. Specifically, organoarsenic compounds were dominant in extracts of Daphnia organisms exposed to low arsenic concentrations through water at 10µgL–1 (67%), and through contaminated food (75%), but inorganic arsenic was dominant in Daphnia exposed to high arsenic concentrations, including contaminated sediments. Phytoplankton cultures contained variable amounts of arsenosugars, but on average the dominant compound in phytoplankton was inorganic arsenic. The main implications of the present study for understanding arsenic cycling in the freshwater plankton community are that arsenosugars are formed at possibly both the phytoplankton and zooplankton trophic levels; and that higher arsenic loads in plankton correspond to higher inorganic arsenic concentrations, which could indicate a saturation of the arsenic methylation process by plankton organisms.

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10

Valois, Amanda E., and Robert Poulin. "Global drivers of parasitism in freshwater plankton communities." Limnology and Oceanography 60, no. 5 (June 19, 2015): 1707–18. http://dx.doi.org/10.1002/lno.10127.

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11

Grujcic, Vesna, Julia K. Nuy, Michaela M. Salcher, Tanja Shabarova, Vojtech Kasalicky, Jens Boenigk, Manfred Jensen, and Karel Simek. "Cryptophyta as major bacterivores in freshwater summer plankton." ISME Journal 12, no. 7 (February 20, 2018): 1668–81. http://dx.doi.org/10.1038/s41396-018-0057-5.

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12

Lay, Jan P. "Influence of chemicals upon plankton in freshwater systems." Chemosphere 16, no. 2-3 (1987): 581–88. http://dx.doi.org/10.1016/0045-6535(87)90270-0.

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13

Polyakov, E. V., M. Ya Chebotina, V. P. Guseva, N. A. Khlebnikov, and I. V. Volkov. "Freshwater plankton as sorbent: Differences in the sorption properties of live and dead plankton." Radiochemistry 58, no. 1 (January 2016): 77–83. http://dx.doi.org/10.1134/s1066362216010124.

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14

Jack, Jeffrey D., Stephen A. Wickham, Shannon Toalson, and John J. Gilbert. "The effect of clays on a freshwater plankton community: An enclosure experiment." Archiv für Hydrobiologie 127, no. 3 (June 9, 1993): 257–70. http://dx.doi.org/10.1127/archiv-hydrobiol/127/1993/257.

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15

Søndergaard, M., NH Borch, and B. Riemann. "Dynamics of biodegradable DOC produced by freshwater plankton communities." Aquatic Microbial Ecology 23 (2000): 73–83. http://dx.doi.org/10.3354/ame023073.

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16

Rasconi, Serena, Andrea Gall, Katharina Winter, and Martin J. Kainz. "Increasing Water Temperature Triggers Dominance of Small Freshwater Plankton." PLOS ONE 10, no. 10 (October 13, 2015): e0140449. http://dx.doi.org/10.1371/journal.pone.0140449.

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17

Layboum-Parry, Johanna, H. J. Marchant, and P. Brown. "The plankton of a large oligotrophic freshwater Antarctic lake." Journal of Plankton Research 13, no. 6 (1991): 1137–49. http://dx.doi.org/10.1093/plankt/13.6.1137.

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18

Mohamed, Zakaria Atia. "Toxic effect of norharmane on a freshwater plankton community." Ecohydrology & Hydrobiology 13, no. 3 (January 2013): 226–32. http://dx.doi.org/10.1016/j.ecohyd.2013.08.002.

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19

Zargar, S., and T. K. Ghosh. "Thermal and Biocidal (Chlorine) Effects on Select Freshwater Plankton." Archives of Environmental Contamination and Toxicology 53, no. 2 (June 2, 2007): 191–97. http://dx.doi.org/10.1007/s00244-006-0108-1.

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20

Ellis-Evans, J. C., V. Galchenko, J. Laybourn-Parry, A. P. Mylnikov, and W. Petz. "Environmental characteristics and microbial plankton activity of freshwater environments at Kongsfjorden, Spitsbergen (Svalbard)." Fundamental and Applied Limnology 152, no. 4 (January 10, 2001): 609–32. http://dx.doi.org/10.1127/archiv-hydrobiol/152/2001/609.

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21

Suharno, Suharno, and Daniel Lantang. "Status Kesuburan Perairan Laut ditinjau dari Keragaman Plankton di Kawasan Kepala Burung, Papua Barat." JURNAL BIOLOGI PAPUA 4, no. 2 (October 14, 2018): 75–82. http://dx.doi.org/10.31957/jbp.540.

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Papua is well known asa megabiodiversity area because it has high diverse biological resources; on the other hand the diversity of plankton biota has not been much studied. Plankton has an important role in the food chain system in the waters, both at sea, freshwater and brackish. The purpose of this study was to determine the level of marine water fertility based on the presence of plankton diversity in the Kepala Burung, West Papua Province. The method used was a survey, with sampling at six (6) point coordinates in Manokwari and Sorong regency. The results showed that there were 66 types of plankton found in marine waters Manokwari and Sorong, Kepala Burung region, West Papua Province. Therefore these waters are still quite fertile with diversity index (H') in Manokwari was 2.80 (32 types of plankton), whereas in Sorong 3.16 (48 species).Key words: plankton, water fertility, Manokwari, Sorong, West Papua Province.

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22

Flynn, Kevin J., Aditee Mitra, Konstantinos Anestis, Anna A. Anschütz, Albert Calbet, Guilherme Duarte Ferreira, Nathalie Gypens, et al. "Mixotrophic protists and a new paradigm for marine ecology: where does plankton research go now?" Journal of Plankton Research 41, no. 4 (July 2019): 375–91. http://dx.doi.org/10.1093/plankt/fbz026.

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Abstract Many protist plankton are mixotrophs, combining phototrophy and phagotrophy. Their role in freshwater and marine ecology has emerged as a major developing feature of plankton research over recent decades. To better aid discussions, we suggest these organisms are termed “mixoplankton”, as “planktonic protist organisms that express, or have potential to express, phototrophy and phagotrophy”. The term “phytoplankton” then describes phototrophic organisms incapable of phagotrophy. “Protozooplankton” describes phagotrophic protists that do not engage in acquired phototrophy. The complexity of the changes to the conceptual base of the plankton trophic web caused by inclusion of mixoplanktonic activities are such that we suggest that the restructured description is termed the “mixoplankton paradigm”. Implications and opportunities for revision of survey and fieldwork, of laboratory experiments and of simulation modelling are considered. The main challenges are not only with taxonomic and functional identifications, and with measuring rates of potentially competing processes within single cells, but with decades of inertia built around the traditional paradigm that assumes a separation of trophic processes between different organisms. In keeping with the synergistic nature of cooperative photo- and phagotrophy in mixoplankton, a comprehensive multidisciplinary approach will be required to tackle the task ahead.

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23

Belmonte, Genuario. "The Suspected Contradictory Role of Parental Care in the Adaption of Planktonic Calanoida to Temporary Freshwater." Water 13, no. 1 (January 4, 2021): 100. http://dx.doi.org/10.3390/w13010100.

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Calanoida have the highest number of species among Copepoda in marine plankton, but not in fresh water, where the greatest number are Cyclopoida. Freshwater Cyclopoida also live in more freshwater sites than Calanoida. This could be a consequence of an invasion of freshwater by marine Cyclopoida before Calanoida. Similar to Cyclopoida, but different from marine Calanoida, freshwater Calanoida females produce egg sacs and care for eggs. This strategy is common among all freshwater plankton, suggesting that the evolution of parental care is an obliged adaption to conquer fresh water. Calanoida, different from Cyclopoida, survive adverse conditions as resting eggs. This life-cycle constraint obliges eggs to survive their mother’s death and wait in the benthos for a certain period. The necessity of completing embryonic development and the hatching of eggs far from the mother’s protection may be responsible for the relatively lower evolutionary success of Calanoida in fresh water compared to Cyclopoida (which rest as juveniles, thus protecting eggs in any moment of their development). Therefore, the brooding of eggs appears to be the obliged solution for Calanoida’s final establishment in fresh water, but the dispersion of eggs on the bottom after the mother’s death and during the rest period is probably the weak point in Calanoida’s competition with Cyclopoida.

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Arum, Elis Seftia, Nova Hariani, and Medi Hendra. "STRUKTUR KOMUNITAS PLANKTON PERMUKAAN PADA DANAU LABUAN CERMIN KEC. BIDUK-BIDUK, KAB. BERAU." Jurnal Pendidikan Matematika dan IPA 9, no. 1 (January 18, 2018): 47. http://dx.doi.org/10.26418/jpmipa.v9i1.23697.

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This study aims to determine (physico-chemical) parameters of water and also community structure of plankton surface in natural tourism Labuan Cermin Biduk-Biduk, Berau, Kalimantan Timur. This study used Purposive Sampling method. Data obtained shows in plankton abundance, diversity index, evenness index and dominance index. The result of study showed that range of temperature between 24,04 oC -26,88 oC, range of salinity between 0.25-0.87o/oowhich classified in freshwater-brackish water, range of power flow between 1.121-2.930 m/s which classified in moderate level, the average pH between 6,76-7,48 which classified in neutral level, range of TDS between 514-788 mg/L which classified in normal level, respectively. Plankton sample showed 27 classes including of 22 classes of phytoplankton with 57 genera and 5 classes of zooplankton with 10 genera. The highest total plankton abundances of 35917 ind/L is in Station A and the lowest total plankton abundances of 8330 ind/L is in Station F. Keywords: Plankton, Labuan Cermin, Diversity.

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25

Zupančič, Maša, Polona Kogovšek, Tadeja Šter, Špela Remec Rekar, Leonardo Cerasino, Špela Baebler, Aleksandra Krivograd Klemenčič, and Tina Eleršek. "Potentially Toxic Planktic and Benthic Cyanobacteria in Slovenian Freshwater Bodies: Detection by Quantitative PCR." Toxins 13, no. 2 (February 11, 2021): 133. http://dx.doi.org/10.3390/toxins13020133.

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Due to increased frequency of cyanobacterial blooms and emerging evidence of cyanotoxicity in biofilm, reliable methods for early cyanotoxin threat detection are of major importance for protection of human, animal and environmental health. To complement the current methods of risk assessment, this study aimed to evaluate selected qPCR assays for detection of potentially toxic cyanobacteria in environmental samples. In the course of one year, 25 plankton and 23 biofilm samples were collected from 15 water bodies in Slovenia. Three different analyses were performed and compared to each other; qPCR targeting mcyE, cyrJ and sxtA genes involved in cyanotoxin production, LC-MS/MS quantifying microcystin, cylindrospermopsin and saxitoxin concentration, and microscopic analyses identifying potentially toxic cyanobacterial taxa. qPCR analyses detected potentially toxic Microcystis in 10 lake plankton samples, and potentially toxic Planktothrix cells in 12 lake plankton and one lake biofilm sample. A positive correlation was observed between numbers of mcyE gene copies and microcystin concentrations. Potential cylindrospermopsin- and saxitoxin-producers were detected in three and seven lake biofilm samples, respectively. The study demonstrated a potential for cyanotoxin production that was left undetected by traditional methods in both plankton and biofilm samples. Thus, the qPCR method could be useful in regular monitoring of water bodies to improve risk assessment and enable timely measures.

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Garno, Yudhi Soetrisno. "Dampak Eutrofikasi Terhadap Struktur Komunitas dan Evaluasi Metode Penentuan Kelimpahan Fitoplankton." Jurnal Teknologi Lingkungan 13, no. 1 (December 13, 2016): 67. http://dx.doi.org/10.29122/jtl.v13i1.1406.

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Pada umumnya peneliti menentukan status kualitas perairan menggunakan data yang diperoleh dengan plankton-net. Data tersebut tidak menceminkan kepadatan dan struktur komunitas fitoplankton yang sebenarnya. Oleh karena itu data tersebut kurang layak untuk menganalisis status kualitas perairan. Artikel ini menyampaikan hasil kajian kelimpahan fitoplankton di perairan tawar dan laut, yang diperoleh dengan dan tanpa menggunakan plankton-net. Kepadatan yang diperoleh dengan planktonnet menghasilkan nilai yang jauh lebih kecil dari kepadatan yang diperoleh tanpa menggunakan plankton-net. Ini mengisyaratkan bahwa untuk menganalisis status kualitas air, lebih layak menggunakan data yang diperoleh dengan tanpa plankton-net kata kunci: fitoplankton, plankton-net, nutrien, eutrofikasi, struktur komunitas.AbstractIn general, researchers determine the status of water quality using data obtained with a plankton-net. The data do not reflect the density and the actual structure of phytoplankton communities. Therefore, the data is not feasible to analyze the water quality status. This article present the results of the study the abundance of phytoplankton in freshwater and marine, which obtained with and without using a plankton-net. Density obtained with a plankton-net produce values that are much smaller than the density obtained without using a plankton-net. This implies that in order to analyze the status of water quality, is more feasible to use data obtained with the no-net plankton key words: phytoplankton, plankton-net, nutrients, eutrophication, the community structure.

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Deines, Peter, Carsten Matz, and Klaus JÜrgens. "Toxicity of violacein-producing bacteria fed to bacterivorous freshwater plankton." Limnology and Oceanography 54, no. 4 (June 1, 2009): 1343–52. http://dx.doi.org/10.4319/lo.2009.54.4.1343.

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28

Laybourn-Parry, Johanna, Julia S. Hofer, and Ruben Sommaruga. "Viruses in the plankton of freshwater and saline Antarctic lakes." Freshwater Biology 46, no. 9 (September 2001): 1279–87. http://dx.doi.org/10.1046/j.1365-2427.2001.00749.x.

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29

Bentzen, E., and W. D. Taylor. "Estimating organic P utilization by freshwater plankton using [32P]ATP." Journal of Plankton Research 13, no. 6 (1991): 1223–38. http://dx.doi.org/10.1093/plankt/13.6.1223.

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30

JACK, JEFFREY D., and JOHN J. GILBERT. "Effects of Metazoan Predators on Ciliates in Freshwater Plankton Communities." Journal of Eukaryotic Microbiology 44, no. 3 (May 1997): 194–99. http://dx.doi.org/10.1111/j.1550-7408.1997.tb05699.x.

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31

Laybourn-Parry, Johanna, and Harvey J. Marchant. "Microbial consortia in the plankton of a freshwater Antarctic lake." SIL Proceedings, 1922-2010 25, no. 2 (December 1993): 972. http://dx.doi.org/10.1080/03680770.1992.11900297.

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32

Fey, Samuel B., Andrew N. Mertens, and Kathryn L. Cottingham. "Autumn leaf subsidies influence spring dynamics of freshwater plankton communities." Oecologia 178, no. 3 (March 13, 2015): 875–85. http://dx.doi.org/10.1007/s00442-015-3279-5.

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33

Stephenson, Gladys L., Narinder K. Kaushik, Keith R. Solomon, and Kristin Day. "Impact of methoxychlor on freshwater communities of plankton in limnocorrals." Environmental Toxicology and Chemistry 5, no. 6 (June 1986): 587–603. http://dx.doi.org/10.1002/etc.5620050611.

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34

Chernova, Elena N., Vladimir M. Shulkin, Eugenia V. Lysenko, Tatiana N. Lutsenko, and Anna G. Boldeskul. "Hydrochemical and biogeochemical features of freshwater and brackish lakes in eastern Sikhote-Alin." Izvestiya TINRO 178, no. 3 (September 30, 2014): 157–72. http://dx.doi.org/10.26428/1606-9919-2014-178-157-172.

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Concentration of major ions and trace metals dissolved and suspended in water and trace metals in plankton of freshwater (Vaskovskoye, Golubichnoye, Yaponskoye) and brackish (Dukhovskoye, Krugloye, Mramornoye, Blagodati) lakes of eastern Sikhote-Alin is determined in July 2011-2012. The Lakes Golubichnoye and Blagodati are included in the Sikhote-Alin State Natural Biosphere Reserve. Anions are detected by the liquid chromatography (Shimadzu LC-10AVP), cations and metals are analyzed by the atomic absorption spectrophotometry (AAS Shimadzu 6800), and carbon concentration is measured by the method of thermocatalytic oxidation with infrared registration (TOC-VCPN, Shimadzu). The freshwater lakes of eastern Sikhote-Alin are distinguished by heightened concentrations of chlorides, sulfates, and sodium as compared with lakes of East-European Plain, mainly because of aerial transfer of ions from the sea. The ions concentration in brackish lakes is determined by direct penetration of seawater. Difference of the heavy metals concentration between freshwater and brackish lakes is negligible, except the manganese with higher concentration in the freshwater lakes. Lakes with wetlands in their drainage area have high concentrations of dissolved organic carbon, iron and manganese, which are depended on water regime. Concentrations of trace metals in the lakes water are low because of its pluvial origin (rainwater transforms slightly in the process of filtration through effusive rocks), with exception of Lake Vaskovskoe located in the area of mining and processing the polymetallic and borosilicate ores, close to the lead smeltery in Rudnaya Pristan stopped in 2009: the lead concentration in the water of this lake is heightened, both in dissolved and suspended forms, though does not exceed the maximal permissible concentration for drinking water. Accumulation of metals by plankton is determined mainly by biological need of the plankton in these elements and practically doesn’t depend on their concentration in water.

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Savadova, Ksenija. "Response of Freshwater Bloom-Forming Planktonic Cyanobacteria to Global Warming and Nutrient Increase." Botanica Lithuanica 20, no. 1 (June 1, 2014): 57–63. http://dx.doi.org/10.2478/botlit-2014-0007.

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Abstract Savadova K., 2014: Response of freshwater bloom-forming planktonic cyanobacteria to global warming and nutrient increase [Planktoninių melsvabakterių atsakas į globalinį atšilimą ir maistmedžiagių kiekio padidėjimą gėluose vandens telkiniuose ]. - Bot. Lith., 20(1): 57-63. Human activities stimulate changes in aquatic environment, promoting temperature rise and eutrophication. Disturbance in aquatic ecosystems lead to alterations in plankton communities and food web structure. Cyanobacteria, which are able to regulate their buoyancy, are adapted to low-light, high temperatures, are capable to store phosphorus and fix nitrogen, produce toxins, which help to acquire competitive traits over other phytoplankton species. So, increasing temperature and loadings of nutrients in lakes stimulate successful proliferation of cyanobacteria and heavy bloom formation. Usually higher temperature (> 20ºC) and lower N:P mass ratio determine the dominance of cyanobacteria species in lakes and this is expected to increase in the future

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36

Lebret, K., S. Langenheder, N. Colinas, Ö. Östman, and ES Lindström. "Increased water colour affects freshwater plankton communities in a mesocosm study." Aquatic Microbial Ecology 81, no. 1 (January 17, 2018): 1–17. http://dx.doi.org/10.3354/ame01858.

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37

HANAZATO, Takayuki. "Climatic warming and freshwater environment. Climatic warming and lake plankton communities." Japanese Journal of Limnology (Rikusuigaku Zasshi) 61, no. 1 (2000): 65–77. http://dx.doi.org/10.3739/rikusui.61.65.

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Wehr, John D., Dale A. Holen, Molli M. MacDonald, and Sean P. Lonergan. "Effects of different organic carbon sources on a freshwater plankton community." Canadian Journal of Fisheries and Aquatic Sciences 55, no. 9 (September 1, 1998): 2150–60. http://dx.doi.org/10.1139/f98-098.

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We examined effects of terrestrial and aquatic detritus on optical, chemical, and biological properties of a planktonic food web in mesotrophic Calder Lake, New York. The 5400-L mesocosms received detritus from terrestrial leaves or aquatic macrophytes (added 1-2 mg dissolved organic C/L). Terrestrial detritus had significant effects on UV-B absorbance (OD250 twofold greater), but humic substances (OD440) remained low. Both C sources resulted in 40% declines in oxygen saturation and two- to threefold increases in dissolved inorganic and total P but no effects on NH4+ or NO3-. Bacterial growth was stimulated by 20% in systems receiving macrophyte C but declined by 50% in systems with terrestrial C. Initially, controls had >60% greater chlorophyll a concentrations than C-amended systems, but mesocosms with macrophyte C exhibited the greatest chlorophyll a concentrations after day 10. Autotrophic nanoflagellates <20 µm (Chrysochromulina parva, Ochromonas) increased in controls but were inhibited in C-amended systems. Cyanobacteria (Coelosphaerium naeglianum, Anabaena, Dactylococcopsis acicularis) numbers increased in mesocosms with macrophyte C; densities of most algal taxa declined in terrestrial-supplemented systems, except certain flagellates (Synura, Cryptomonas, Ceratium hirundinella), which were enhanced. Abundances of heterotrophic nanoflagellates, rotifers, Daphnia pulicaria, and copepod nauplii were stimulated by macrophyte C; only the copepod Mesocyclops edax increased following addition of terrestrial C.

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Vézina, Alain F. "Body size and mass flow in freshwater plankton: models and tests." Journal of Plankton Research 8, no. 5 (1986): 939–56. http://dx.doi.org/10.1093/plankt/8.5.939.

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Frenken, Thijs, Corina P. D. Brussaard, Mandy Velthuis, Ralf Aben, Garabet Kazanjian, Sabine Hilt, Sarian Kosten, et al. "Warming advances virus population dynamics in a temperate freshwater plankton community." Limnology and Oceanography Letters 5, no. 4 (May 22, 2020): 295–304. http://dx.doi.org/10.1002/lol2.10160.

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Anderson, Thomas L., Lawrence W. Sheppard, Jonathan A. Walter, Susan P. Hendricks, Todd D. Levine, David S. White, and Daniel C. Reuman. "The dependence of synchrony on timescale and geography in freshwater plankton." Limnology and Oceanography 64, no. 2 (November 5, 2018): 483–502. http://dx.doi.org/10.1002/lno.11054.

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Thomas, Derin M., Cheng-Shiuan Lee, and Nicholas S. Fisher. "Bioaccumulation and trophic transfer of 137Cs in marine and freshwater plankton." Chemosphere 209 (October 2018): 599–607. http://dx.doi.org/10.1016/j.chemosphere.2018.06.124.

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Komárek, Jiøi, and Jaroslava Komárková-Legnerová. "Several rare freshwater planktic Cyanobacteria (Cyanoprokaryotes) from reservoirs in South America." Hoehnea 34, no. 1 (2007): 49–58. http://dx.doi.org/10.1590/s2236-89062007000100002.

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Ten rare filamentous cyanobacterial oscillatorialean morphospecies, recorded in plankton of freshwater water bodies in tropical and subtropical South America, mainly in São Paulo State, Brazil, are described in this article. Four morphospecies from the genera Romeria, Arthrospira, Planktothricoides and Hormoscilla are not identifiable according to literature, and they are described as new for science.

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Tett, Paul. "The ecology of plankton in Scottish coastal waters." Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences 100 (1992): 27–54. http://dx.doi.org/10.1017/s0269727000011052.

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SynopsisThe lives of the plants, animals and bacteria of the plankton are ruled by the diffusive nature of their fluid medium, in which vertical turbulence is sometimes checked by density gradients caused by surface heating or inflow of freshwater. Seasonal and spatial changes in the production and species composition of phytoplankton and associated microheterotrophs result from interactions amongst light penetration, supply of mineral nutrients, and vertical mixing; many species are capable of rapid increase when multiplication exceeds losses by dispersion and predation. Water depth, currents, dispersion and food supplies control mesozooplankton.Although Scottish coastal waters include a variety of pelagic environments, there is little evidence of site-specific flora or fauna. Planktonic assemblages are, however, locally more diverse than expected. If this excess diversity is a result of ever-changing conditions, the composition of microplanktonic associations may be largely decided by chance. Explanations based on niche theory seem to apply convincingly only to the larger, semi-nektonic, pelagic crustaceans. Thus, consideration of issues relating to conservation raises fundamental and difficult questions about the biology of plankton.Conservation of species is impractical if accident plays a large part in recruitment and replacement. Conversely, the dispersive nature of the pelagic environment and the weakness of interspecific relations may lessen the sensitivity of plankton to anthropogenic perturbations. Nevertheless, eutrophication and climatic change can disturb pelagic communities, especially in enclosed waters.

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Flinkman, Juha, Ilppo Vuorinen, and Eero Aro. "Planktivorous Baltic Herring (Clupea harengus) Prey Selectively on Reproducing Copepods and Cladocerans." Canadian Journal of Fisheries and Aquatic Sciences 49, no. 1 (January 1, 1992): 73–77. http://dx.doi.org/10.1139/f92-008.

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Plankton and Baltic herring (Clupea harengus) were sampled simultaneously at nine sites in the northern Baltic Sea and Gulf of Bothnia. The stomachs from 45 herring and 54 plankton samples were analysed. The prey consisted mainly of adult mesozooplankters: copepods and cladocerans. Larger zooplankters (mysids and amphipods) were very rare in the stomachs as were the younger stages (copepodids) of copepods. The stomach contents of the fish changed from brackish water and neritic plankton species in the northern Baltic Proper to limnic species in the northern part of the Bothnian Sea. The diversity of plankton species decreased along with the salinity from south to north. Comparison of the plankton samples and herring stomach contents showed that prey with a large body size was selected as food. Generally this resulted in female copepods being chosen, since they are larger than males of the same species. Especially preferred food items were species and stages which carried conspicuous egg sacs (Eurytemora affinis females) or pigmented eggs and embryos (Bosmina longispina, Podon spp). Our results suggest that the Baltic herring is capable of exerting a regulative effect on the prey population comparable with that found in freshwater planktivores.

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Shao, N. F., S. T. Yang, Y. Sun, Y. Gai, C. S. Zhao, F. Wang, X. Yin, and B. Dong. "Assessing aquatic ecosystem health through the analysis of plankton biodiversity." Marine and Freshwater Research 70, no. 5 (2019): 647. http://dx.doi.org/10.1071/mf18342.

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Healthy plankton communities are the foundation of many freshwater food webs. Their biodiversity is often used to directly reflect the health of the rivers. Globally, river ecosystem restoration is a critical issue and many freshwater ecosystems, especially in cities, are degraded because of intensive human activities. This is true for Jinan, China’s first pilot city for the Water Ecological Civilisation Project. The outcomes of aquatic ecosystem restoration in the city will directly affect the success or failure of the construction of aquatic ecological civilisations across the entire country; therefore, there is an urgent need for research on the assessment of river health in Jinan based on plankton biodiversity. As such, this study gathered data on the distribution of plankton (phytoplankton and zooplankton) in Jinan by collecting three sets of samples from 59 aquatic ecosystem monitoring stations in spring, summer and autumn of 2015. In all, 104 species of phytoplankton and 56 species of zooplankton were identified. Diatoms, Chlorophyta, and Cyanophyta accounted for 50, 31 and 15% respectively of phytoplankton, and rotifers, Protozoa and cladocerans accounted for 39, 31 and 17% respectively of zooplankton. We constructed a plankton health assessment model based on the Shannon–Wiener diversity index for analysis of the temporal and spatial distribution. According to the overall health distribution diagram, spatially health status was significantly better in north and south Jinan than in the city centre; temporally, spring water ecosystem health was better than in summer and autumn. These conclusions provide a theoretical basis and direction for the restoration of aquatic ecosystems in Jinan, and the methods used in this study can serve as a reference for aquatic ecosystem evaluation in developing countries.

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Chen, Xinming, Wang Zheng, and Ariel D. Anbar. "Uranium Isotope Fractionation (238U/235U) during U(VI) Uptake by Freshwater Plankton." Environmental Science & Technology 54, no. 5 (January 29, 2020): 2744–52. http://dx.doi.org/10.1021/acs.est.9b06421.

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Sinsabaugh, Robert L., David J. Van Horn, Jennifer J. Follstad Shah, and Stuart Findlay. "Ecoenzymatic Stoichiometry in Relation to Productivity for Freshwater Biofilm and Plankton Communities." Microbial Ecology 60, no. 4 (June 17, 2010): 885–93. http://dx.doi.org/10.1007/s00248-010-9696-4.

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Riera, Steven F., and Risa A. Cohen. "Alkyl polyglucoside compound influences freshwater plankton community structure in floating field mesocosms." Ecotoxicology 25, no. 8 (July 21, 2016): 1458–67. http://dx.doi.org/10.1007/s10646-016-1697-8.

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T., Nielsen, and Andersen C. "Plankton community structure and production along a freshwater-influenced Norwegian fjord system." Marine Biology 141, no. 4 (October 1, 2002): 707–24. http://dx.doi.org/10.1007/s00227-002-0868-8.

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