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Journal articles on the topic 'Periphyton'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Saikia, SK, and DN Das. "Diversity and productivity (Chlorophyll-a and Biomass) of periphyton on natural and artificial substrates from wetland ecosystem." Journal of Wetlands Ecology 5 (December 28, 2011): 1–9. http://dx.doi.org/10.3126/jowe.v5i0.4624.

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Periphyton from rice-fish environment of Apatani Plateau, Arunachal Pradesh, India was studied for diversity and productivity (Chlorophyll-a and biomass) on artificial (glass slide) and natural (rice stem) substrates. Periphyton from rice stems, especially, from cultivars locally known as ‘Amo’ were collected from a depth of 7.0-8.0 cm from surface water and 5.0 cm above from the field bottom. Glass slides (15 × 18cm) were fitted in periphyton sampler and fixed at different depths. The rice fish environment was found to harbor rich periphytic diversity throughout the whole cropping season of 2

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2

Anishchenko, Olesya, Michail Gladyshev, Elena Kravchuk, Elena Ivanova, Iliada Gribovskaya, and Nadezhda Sushchik. "Seasonal variations of metal concentrations in periphyton and taxonomic composition of the algal community at a Yenisei River littoral site." Open Life Sciences 5, no. 1 (2010): 125–34. http://dx.doi.org/10.2478/s11535-009-0060-y.

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AbstractThe concentrations of metals K, Na, Ca, Mg, Fe, Mn, Zn, Cu, Ni, Pb, Co and Cr, in the water and periphyton (epilithic algal communities) were studied at a site in the middle stream of the Yenisei River (Siberia, Russia) during three years using monthly sampling frequencies. Despite considerable seasonal variations in aquatic concentrations of some metals, there was no correlation between metal contents in the water and in periphyton. Seasonal concentration variations of some metals in periphyton were related to the species (taxonomic) composition of periphytic microalgae and cyanobacte

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3

Pratiwi, NTM, M. Krisanti, DY Wulandari, et al. "Aquatic Biofilm as Water Quality Bioindicator in the Upstream Part of Cisadane River." IOP Conference Series: Earth and Environmental Science 1468, no. 1 (2025): 012001. https://doi.org/10.1088/1755-1315/1468/1/012001.

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Abstract Changes in river water conditions from anthropogenic activities can be indicated by microbiota such as periphytons and bacteria. This study assessed water quality in the upstream Cisadane River at three sampling sites in Ranca Bungur, Lido, Bogor, focusing on periphyton and bacteria as bioindicators at two different time periods. Data analysis included community structure, the assemblge pattern, and pollution level determination from current (2024) and previous research (2007). Periphytic diatoms dominated across stations and periods, with different composition of genera in the whole

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4

Salim, Shaikh, Shaikh Yasmeen, Tabassum Fatima, and Shivaji Chavan. "Evaluation of different types of substrates from cotton plant in periphyton development system." International Journal of Advance and Applied Research 5, no. 23 (2024): 401–4. https://doi.org/10.5281/zenodo.13637443.

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<strong>Abstract:</strong> Periphytons are the micro-organisms growing on stones, sticks aquatic macrophytes, and submerged surfaces. Periphyton is the easiest source of food for fishes in an ecosystem. In the present study different structures of cotton stems and cotton flowers were evaluated for the periphyton production in the laboratory. The physico-chemical properties of substrates added water and initial water was analyzed by standard methods. The results revealed that the biomass of periphyton was high on the isolated cotton stems than the other substrates. The taxonomic composition of

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5

Čapková, Kateřina, Klára Řeháková, Tomáš Bešta, Petr Čapek, Jan Mareš, and Eliška Konopáčová. "Seasonal variation of gross ecosystem productivity of periphyton in three post-mining lakes in the Czech Republic, Europe." ARPHA Conference Abstracts 6 (October 13, 2023): e108115. https://doi.org/10.3897/aca.6.e108115.

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We investigated the seasonal variation of gross ecosystem productivity (GEP) of periphyton biomass in three post-mining lakes in the Czech Republic. These lakes were established as part of recultivation efforts after coal mining activities and resulted in a unique series of anthropogenic oligotrophic lakes of gradual successional age. Periphyton is ubiquitous in aquatic habitats and performs numerous environmental functions such as nutrient cycling and self-purifying of aquatic ecosystems. Well-developed periphyton mat can be formed within a few weeks, so it can quickly become the dominant of

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6

*Mansoure, Gholami and Maryam Shapoori. "INVESTIGATION OF PERIPHYTONS OF ZARIVAR LAKE IN KURDISTAN PROVINCE." Indo American Journal of Pharmaceutical Sciences 04, no. 06 (2017): 1784–89. https://doi.org/10.5281/zenodo.824645.

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Zarivar lake is one of the most unique fresh water lakes in the world . A lake with delicate and complex ecosystem that is unparalleled in its own . This lake is located at 2 km from north west of Marivan city and altitude of 1285 m higher than sea surface . Periphytons is a kind of single-celled algae adhered to bed which based on bed type are divided to various cases. In this research , two types of epilithic periphytons and epiphytic periphyton were investigated and identified as well as physio-chemical parameters during the one-year course within 5 stations were investigated Considering th

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7

Souza, Mariane Lima de, and Carla Ferragut. "Influence of substratum surface roughness on periphytic algal community structure in a shallow tropical reservoir." Acta Limnologica Brasiliensia 24, no. 4 (2013): 397–407. http://dx.doi.org/10.1590/s2179-975x2013005000004.

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AIM: This study aimed to evaluate the algal periphytic community structure on substrates with differing surface roughness in early and longer-term colonization; METHODS: Periphyton was sampled after 30 days (June 24 to July 24, 2008) and 5 days (July 07 to July 12, 2010) substrate exposure during dry season. Plastic slides were used as artificial substrate. Treatments were smooth surface (control), low roughness, medium roughness and high roughness. Samples were collected for limnological condition and periphyton (chlorophyll-a, AFDM, algal biovolume and density, species richness and diversity

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8

Tonkin, Jonathan D., Russell G. Death, and José Barquín. "Periphyton control on stream invertebrate diversity: is periphyton architecture more important than biomass?" Marine and Freshwater Research 65, no. 9 (2014): 818. http://dx.doi.org/10.1071/mf13271.

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There is little consensus on the form of the periphyton biomass–macroinvertebrate diversity relationship in streams. One factor that these relationships do not account for is the growth form of primary producers. We (1) examined the periphyton biomass–macroinvertebrate diversity relationship in 24 streams of Cantabria, Spain, in July 2007, and (2) determined whether this relationship was underpinned, and better explained, by specific responses to the growth form of the periphyton community. We hypothesised that macroinvertebrate diversity would be a log-linear function of periphyton biomass an

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9

Lakatos, Gyula, Ildikó Mátrai, János Kundrát, and István Gyulai. "The Mass Ratio of the Epiphytic Periphyton of the Nyéki-Holt-Duna." Landscape & Environment 10, no. 3-4 (2016): 232–41. http://dx.doi.org/10.21120/le/10/3-4/17.

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The knowledge of the periphytic structure is important for the fact that the composition of epiphytic periphyton indicates the ecologically different habitats, the biological state of water-quality and its changes. Plants like reed, great bulrush, saligot, pondweed, and water-rose separately were collected from the different sampling sites for the epiphytic periphyton examination. We performed the comparability of the monitoring systems based on the periphyton category (mass), the group (ash%), the type (chl-a%), and the character (AI), and we used the biological indicators to determine the ec

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10

Andreeva, N. A. "Monitoring the composition of periphyton and epiliton cyanobacteria in the coastal shallow water (Black Sea, Sevastopol)." Monitoring systems of environment, no. 1 (March 28, 2022): 74–80. http://dx.doi.org/10.33075/2220-5861-2022-1-74-80.

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During 2017–2021 a study of the composition of periphytic cyanobacteria in the coastal waters of the bays of Sevastopol was carried out. The composition of cyanobacteria in the periphyton and epilithon varied over the years in the range of 4–7 and 2–8 forms, respectively. Over the entire period, 16 system-atic units have been identified, which are representatives of 7 orders: Chroococcales, Chroococcidiop-sidales, Synechococcales, Pleurocapsales, Oscillatoriales, Nostocales and Stigonematales. The absolute dominants in the periphyton of the glasses were cyanobacteria of the order Oscillatorial

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11

Fernandes, V. O., and F. A. Esteves. "The use of indices for evaluating the periphytic community in two kinds of substrate in Imboassica Lagoon, Rio de Janeiro, Brazil." Brazilian Journal of Biology 63, no. 2 (2003): 233–43. http://dx.doi.org/10.1590/s1519-69842003000200008.

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Biological indices based on the biomass (dry weight, ash content, and chlorophyll-a) of the periphyton in a natural (submersed leaves of Typha domingensis Pers) and in an artificial (plastic hoses) substrate were compared, in experiments performed in summer and winter, in two sampling stations of Imboassica Lagoon, Macaé, Rio de Janeiro. The periphytic community exhibited low biomass at the beginning and end of the experiments, and moderate biomass in the intermediate period of the experiment, whatever the kind of substrate, sampling station, and season. In both seasons, there was a spatial va

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12

Saikia, S. K., and D. N. Das. "Potentiality of Periphyton-based Aquaculture Technology in Rice-fish Environment." Journal of Scientific Research 1, no. 3 (2009): 624–34. http://dx.doi.org/10.3329/jsr.v1i3.2114.

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Periphyton is being used traditionally as rich aquatic feed for fishes throughout the countries like Cambodia, West Africa, Srilanka, India and Bangladesh. In waterlogged rice environment, it can be judiciously utilized as feed source introducing periphytophagous fish. Studies supported rice straw as suitable substrate for periphyton growth. The study of gut content of Common carp (Cyprinus carpio L.) from a periphyton-based rice-fish culture system in Apatani Plateau of Arunachal Pradesh, India showed maximum of 60 genera of microflora and fauna with periphytic in nature. The farmers from thi

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13

Bari, M. A., M. I. Hossain, and M. A. J. Miah. "Synthesis of Acryclic Acid Ethyl Ester from Aldehydes Catalyzed by Copper Triflates." Journal of Scientific Research 1, no. 3 (2009): 635–40. http://dx.doi.org/10.3329/jsr.v1i3.2473.

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Periphyton is being used traditionally as rich aquatic feed for fishes throughout the countries like Cambodia, West Africa, Srilanka, India and Bangladesh. In waterlogged rice environment, it can be judiciously utilized as feed source introducing periphytophagous fish. Studies supported rice straw as suitable substrate for periphyton growth. The study of gut content of Common carp (Cyprinus carpio L.) from a periphyton-based rice-fish culture system in Apatani Plateau of Arunachal Pradesh, India showed maximum of 60 genera of microflora and fauna with periphytic in nature. The farmers from thi

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14

Santhiya, A. Anix Vivek, S. Athithan, B. Ahilan, J. Stephen, Sampath Kumar, and A. Srinivasan. "Evaluation of periphyton quantity on different natural substrates in Earthen lined pond." Journal of Applied and Natural Science 9, no. 3 (2017): 1630–36. http://dx.doi.org/10.31018/jans.v9i3.1413.

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Experiments were conducted in outdoor earthen lined pond to study periphyton quantity on three types of natural substrates such as split bamboo pole, coconut coir and coconut shell, which was placed inside the earthen lined pond filled with seawater for duration of 45 days. Observations were made in every 15th day for growth of periphyton both qualitatively and quantitatively on the three natural substrates and physico-chemical properties of selected pond water such as transparency, water temperature, salinity, pH, Dissolved oxygen, Ammonia (NH3-N), Nitrite (NO2-N), Nitrate (NO3-N), BOD and Ch

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15

Bahri, Syamsul, and Iga Maliga. "Pengaruh Organisme Perifiton dalam Memperbaiki Kualitas Air pada Lahan Basah Buatan Sistem Aliran Air Permukaan Bebas." JURNAL SUMBER DAYA AIR 14, no. 1 (2018): 1–14. http://dx.doi.org/10.32679/jsda.v14i1.289.

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The main removal mechanism of water contaminants in wetlands is microorganisms activities. One of them is a periphyton that lives on a submerged substratum. Therefore, a study of the influence of periphyton in construcetd wetlands which is important in improving water quality. The research objectives were to identify of the quality of influent, the composition of algae, the periphytone algae as primary producer, the influence of free water surface velocity factor, the quality of effluent, efectivity and eficiency of constracted wetlands. The study was conducted in Bandung City on January 2017.

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16

Ishikawa, N. F., M. Yamane, H. Suga, N. O. Ogawa, Y. Yokoyama та N. Ohkouchi. "Chlorophyll <i>a</i>-specific Δ<sup>14</sup>C, δ<sup>13</sup>C and δ<sup>15</sup>N values in stream periphyton: implications for aquatic food web studies". Biogeosciences 12, № 22 (2015): 6781–89. http://dx.doi.org/10.5194/bg-12-6781-2015.

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Abstract. Periphytic algae attached to a streambed substrate (periphyton) are an important primary producer in stream ecosystems. We determined the isotopic composition of chlorophyll a in periphyton collected from a stream flowing on limestone bedrock in the Seri River, central Japan. Stable isotope ratios of carbon (δ13C) and nitrogen (δ15N) and natural radiocarbon abundances (Δ14C) were measured in chlorophyll a (δ13Cchl, δ15Nchl and Δ14Cchl) and bulk (δ13Cbulk, δ15Nbulk and Δ14Cbulk) for periphyton, a pure aquatic primary producer (Cladophora sp.) and a terrestrial primary producer (Quercu

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17

Ishikawa, N. F., M. Yamane, H. Suga, N. O. Ogawa, Y. Yokoyama та N. Ohkouchi. "Chlorophyll <i>a</i> specific Δ<sup>14</sup>C, δ<sup>13</sup>C and δ<sup>15</sup>N values in stream periphyton: implications for aquatic food web studies". Biogeosciences Discussions 12, № 14 (2015): 11089–111. http://dx.doi.org/10.5194/bgd-12-11089-2015.

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Abstract. We determined the isotopic composition of chlorophyll a in periphytic algae attached to a streambed substrate (periphyton). The samples were collected from a stream flowing on limestone bedrock in the Seri River, central Japan. Stable isotope ratios of carbon (δ13C) and nitrogen (δ15N) and natural radiocarbon abundances (Δ14C) were measured in chlorophyll a (δ13Cchl, δ15Nchl and Δ14Cchl) and bulk (δ13Cbulk, δ15Nbulk and Δ14Cbulk) for periphyton, pure aquatic primary producer (Cladophora sp.) and terrestrial primary producer (Quercus glauca). Periphyton δ13Cbulk and δ13Cchl values did

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18

Pontasch, Kurt W., and Merlyn A. Brusven. "Periphyton Response to a Gasoline Spill in Wolf Lodge Creek, Idaho." Canadian Journal of Fisheries and Aquatic Sciences 44, no. 9 (1987): 1669–73. http://dx.doi.org/10.1139/f87-205.

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A post-impact study on a 94438-L unleaded gasoline spill into Wolf Lodge Creek in northern Idaho was undertaken to determine the temporal and spatial response of periphyton following the spill. Periphytic biomass and chlorophyll a concentrations were determined above and below the spill. Downstream areas were mechanically agitated to release substrate-trapped hydrocarbons 35 d after the spill. Periphyton samples taken 26 d after the spill indicated that periphytic biomass, especially of the heterotrophs, was greater in the impacted than unimpacted areas; the Autorophic Index was up to 30 times

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Signor, Altevir, Arcangelo Augusto Signor, Wilson Rogério Boscolo, Adilson Reidel, Sidnei Klein, and Aldi Feiden. "Periphyton biomass on artificial substrates during the summer and winter." Ciência Rural 45, no. 1 (2015): 72–78. http://dx.doi.org/10.1590/0103-8478cr20130635.

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This study evaluated the periphyton production on artificial substrates considering it as a source of low cost live food for fish. Blades of artificial substrates such as wood, black plastic, acrylic, fiberglass, ceramics and glass (all with 144cm2 blades, 24 for each substrate) were submerged 20.0cm below the water column for 35 days in the winter and 42 days in the summer. The blades were randomly installed in 200m3 pond and evaluated for the biomass production at different phases during the summer and winter. Four blades of each substrate were collected weekly, and the periphytic community

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Sosiak, Al. "Long-term response of periphyton and macrophytes to reduced municipal nutrient loading to the Bow River (Alberta, Canada)." Canadian Journal of Fisheries and Aquatic Sciences 59, no. 6 (2002): 987–1001. http://dx.doi.org/10.1139/f02-071.

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The biomass of periphyton and aquatic macrophytes (Potamogeton vaginatus and Potamogeton pectinatus) in the Bow River was sampled over 16 years to assess the response of these plants to improved phosphorus (19821983) and nitrogen removal (19871990) at Calgary's two municipal wastewater treatment plants. These improvements in treatment reduced total phosphorus loading to the Bow River by 80%, total ammonia loading by 53%, and nitrite + nitrate loading by 50%. No change in periphytic biomass was detected after enhanced phosphorus removal where total dissolved phosphorus (TDP) in river water re

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21

Rusanov, Alexander G., and Elena V. Stanislavskaya. "Spatial variation in taxonomic and functional composition of periphytic algae in lakes of Karelian Isthmus." Issues of modern algology (Вопросы современной альгологии), no. 2(29) (2022): 38–45. http://dx.doi.org/10.33624/2311-0147-2022-2(29)-38-45.

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Variation in species and functional structure of periphytic algae community in relation to chemical, physical, climatic and spatial factors was studied in 55 lakes of Karelian Isthmus. To assess factors driving functional structure, all algal species were divided into eight functional groups that differ in cell/colony morphology and attachment mode to the substrate. Variance partitioning analysis showed that environmental factors (chemical and climatic) prevailed over spatial variables in explaining variation in periphyton species structure. On the contrary, periphyton functional structure dep

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22

Yadav, Arpana, Dhananjay Kumar, Ram Sharan Singh, Lalit K. Pandey, and Jyoti Rai. "Seasonal variations in response of periphytic algal community to nutrient enrichment in the river Ganga (Varanasi, India)." Annales de Limnologie - International Journal of Limnology 54 (2018): 32. http://dx.doi.org/10.1051/limn/2018025.

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Effect of nutrient enrichment on periphyton was studied using chemical diffusing substrates that released, singly or in combination, PO43−-P and nitrogen, both NO3−-N and NH4+-N. The study was carried out in March and June 2014 as these two time periods showed abundance of different groups of algae. Whereas diatoms and green algae were abundant in March, cyanobacteria dominated in June. Nitrogen was primarily growth limiting in river water as its enrichment enhanced the growth of periphyton. Phosphate limitation was secondary in nature. Enrichment of NH4+-N caused greater enhancement of periph

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23

Denise, E. M., Osagie Okhator, G. P. Affah, and M. C. Anyadike. "PHYSICOCHEMICAL PROPERTIES AND PERIPHYTIC ALGAE OF IKOT EBAK RIVER, ESSIEN UDIM LGA, AKWA IBOM STATE." FUDMA JOURNAL OF SCIENCES 6, no. 2 (2022): 18–23. http://dx.doi.org/10.33003/fjs-2022-0602-924.

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Periphyton constitutes one of the primary sources of energy in the aquatic food chain in streams, rivers and lakes. They play important role in regulating carbon and nutrient cycling. They are also used in many studies as pollution index organisms. A survey of Periphytic algae in Ikot Ebak River was investigated between October 2019 and February 2020. Samples were collected monthly for physicochemical analysis and periphyton studies. Water samples for physical and chemical parameters were collected directly into transparent plastic containers, while periphyton samples were scraped from the sur

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Sallenave, R. M., and K. E. Day. "Uptake and Bioconcentration of 2,2′,4,4′,5,5′-Hexachlorobiphenyl by Lotic Periphyton." Water Quality Research Journal 32, no. 3 (1997): 619–36. http://dx.doi.org/10.2166/wqrj.1997.036.

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Abstract Laboratory experiments were conducted to examine the uptake and bioconcentration of 2,2′,4,4′,5,5′-hexachlorobiphenyl (HCBP), a model hydrophobic organic compound, in lotic periphyton. The instantaneous rate of uptake and bioconcentration factor (BCF) were determined by following the time course of uptake of 14C-HCBP in periphytic communities established on glass slides. The rate of accumulation was highest in the first 3 hours, and steady state was reached within 8 days. The bioconcentration factor on a dry weight basis (BCFd) averaged 21,000. The results of a depuration experiment i

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McNair, Sheila A., and Patricia Chow-Fraser. "Change in biomass of benthic and planktonic algae along a disturbance gradient for 24 Great Lakes coastal wetlands." Canadian Journal of Fisheries and Aquatic Sciences 60, no. 6 (2003): 676–89. http://dx.doi.org/10.1139/f03-054.

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We quantified the chlorophyll a content of planktonic algae and benthic algae in periphyton on acrylic rods and in epiphyton growing on macrophytes in 24 coastal wetlands in all five Laurentian Great Lakes. Sites were selected to represent a wide range of environmental conditions ranging from nutrient-poor, clear-water marshes with abundant macrophytes to nutrient-enriched, turbid systems devoid of aquatic vegetation. Water quality and species and percent cover of submergent macrophytes were measured in each wetland. Principal components analysis (PCA) showed that total phosphorus, turbidity,

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Algarte, VM, NS Siqueira, EA Murakami, and L. Rodrigues. "Effects of hydrological regime and connectivity on the interannual variation in taxonomic similarity of periphytic algae." Brazilian Journal of Biology 69, no. 2 suppl (2009): 609–16. http://dx.doi.org/10.1590/s1519-69842009000300015.

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The aim of this study was to analyze the effects of flood pulses (intensity) on the richness and composition of periphytic algae in lentic environments of the Upper Paraná River floodplain, over a six-year period. Other factors, such as connectivity of the environments with the main channel of the river and the availability of substrate for the periphyton, were also evaluated. For qualitative analyses, periphyton community was sampled from adult petioles of Eichhornia azurea Kunth taken from the littoral regions of the lakes studied. A total of 457 taxa of periphytic algae, distributed within

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Baffico, Gustavo, and Carmen Úbeda. "Larval diet of the frog Alsodes gargola (Leptodactylidae: Telmatobiinae) and some ecological considerations on its role in alpine and mountain aquatic environments in Patagonia." Amphibia-Reptilia 27, no. 2 (2006): 161–68. http://dx.doi.org/10.1163/156853806777239986.

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AbstractAlsodes gargola is an endemic species from northwest Patagonia, Argentina. Its tadpoles inhabit oligotrophic high altitude lakes and mountain streams from their sources. Tadpole diet is an important yet still unknown feature of its biology. This study analyzes alimentary tract content from A. gargola tadpoles collected from several of the species' typical habitats. For each group of items eaten, frequency of occurrence and its importance in the diet according to biovolume was calculated. Tadpole feeding behavior was also observed. The most common items were periphyton and plant materia

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Leandrini, JA, IA Fonseca, and L. Rodrigues. "Characterization of habitats based on algal periphyton biomass in the upper Paraná River floodplain, Brazil." Brazilian Journal of Biology 68, no. 3 (2008): 503–9. http://dx.doi.org/10.1590/s1519-69842008000300006.

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Considering the relevant role played by the hydrological regime on the structure and functioning of floodplains, this study aims at characterizing different types of aquatic environments according to periphyton biomass and evaluating the influence of the fluviometric levels of the Paraná River and other forcing functions upon the periphytic community. Periphyton (chlorophyll a) was analyzed in 28 habitats, during the years 2000 and 2001, in high and low water seasons. Both years were characterized by lacking the characteristic high water season. The Principal Components Analysis revealed two g

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Maryam. "BIODIVERSITY OF PERIPHYTIC COMMUNITY IN A FRESH WATERBODY OF ALIGARH." International Journal of Life Sciences Research 10, no. 2 (2022): 21–32. https://doi.org/10.5281/zenodo.6586195.

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<strong>Abstract:</strong> The present investigation on Diggi Pond, located at a distance of about 2 km south-east of the university campus (Lat.27<sup>0</sup>-54<sup>`</sup>N long.78-04´ E), was conducted during May, 2007-April, 2008 for studying the biodiversity of periphytic community along with various physico-chemical parameters. During the entire study, periphytic community showed a seasonal distribution. Maximum density of periphyton was found in winter (2253 No. /cm<sup>2</sup>) on natural substrata and in post-monsoon (1191 No. /cm<sub></sub><sup>2</sup>) on artificial subs

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30

Haque, Md Rezoanul, Mahmuda Akter, and Rubaiya Pervin. "Effects of C/N controlled periphyton based organic farming of freshwater prawn on water quality parameters and biotic factors." Journal of Fisheries 2, no. 2 (2014): 125. http://dx.doi.org/10.17017/jfish.v2i2.2014.37.

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The effects of C:N controlled periphyton based organic farming of freshwater prawn on water quality parameters and biotic factors were investigated. The experiment had two treatments: T1 and T2 each with three replications. Stocking density was maintained at 20,000 juveniles ha-1. In T1, only commercially available prawn feed was applied and in T2, a locally formulated and prepared feed containing 24% crude protein with C:N ratio close to 20 was used, and maize flour and bamboo side shoots were provided for maintaining C:N ratio 20.Mean values of water quality parameters did not vary significa

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Pervin, Rubaiya, Md Rezoanul Haque, and Mahmuda Akter. "Effects of C/N controlled periphyton based organic farming of freshwater prawn on water quality parameters and biotic factors." Journal of Fisheries 2, no. 2 (2014): 125–34. http://dx.doi.org/10.17017/j.fish.79.

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The effects of C:N controlled periphyton based organic farming of freshwater prawn on water quality parameters and biotic factors were investigated. The experiment had two treatments: T1 and T2 each with three replications. Stocking density was maintained at 20,000 juveniles ha-1. In T1, only commercially available prawn feed was applied and in T2, a locally formulated and prepared feed containing 24% crude protein with C:N ratio close to 20 was used, and maize flour and bamboo side shoots were provided for maintaining C:N ratio 20. Mean values of water quality parameters did not vary signific

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Moulton, Timothy P., Marcelo L. Souza, Ernesto F. Brito, M. Rosário Almeida Braga, and Stuart E. Bunn. "Strong interactions of Paratya australiensis (Decapoda:Atyidae) on periphyton in an Australian subtropical stream." Marine and Freshwater Research 63, no. 9 (2012): 834. http://dx.doi.org/10.1071/mf12063.

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Atyid shrimps are often an abundant component in undisturbed tropical streams. Studies in coastal streams in Puerto Rico and Brazil have demonstrated the importance of this group in removing periphyton and sediment from hard substrates and their effects on the composition and quantity of periphytic algae. We used experimental exclosures to investigate the influence of the small atyid Paratya australiensis on periphyton accrual on hard substrates in a coastal stream in the subtropics of Australia. We measured organic and inorganic matter, chlorophyll and algal biovolume in the presence and abse

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Dharmaji, Deddy, Suhaili Asmawi, Yunandar Yunandar, and Rio Rizky Kurniawan. "Analisis Kelimpahan Dan Keanekaragaman Perifiton Rawa Bangkau Kabupaten Hulu Sungai Selatan Kalimantan Selatan." EnviroScienteae 16, no. 3 (2020): 366. http://dx.doi.org/10.20527/es.v16i3.9678.

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Periphyton group are biota communities that be able adapt and grow well in lentic waters. Their habits are adhere to a permanent location. Aquatic vegetation in Bangkau can influenced the periphyton abundance and diversity as natural food in the food chain. The purpose of this study was to analyzed abundance and diversity of Periphyton from different aquatic vegetation. The research was conducted in three stations by purposive sampling. The method used was quantitative explored. The data that has been taken were epiphythic periphyton samples. Periphyton sampling procedures, preservation, and a

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Carneiro, Ruan de Oliveira, and Carla Ferragut. "Periphyton responses to enrichment and nutrient dilution in two mesocosm experiments in a shallow hypereutrophic reservoir." Limnetica 42, no. 1 (2023): 1. http://dx.doi.org/10.23818/limn.42.06.

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Periphyton can contribute to maintaining oligotrophic conditions in restored shallow lakes and reservoirs. In two mesocosm experiments, we evaluated the periphyton responses to enrichment and nutrient dilution in a hypereutrophic reservoir. Effects of the isolated and combined N and P enrichment and dilution levels on periphyton biomass and structure on artificial substrate were investigated. For colonization of periphyton, glass slides were exposed for 14 days (enrichment experiment) and 21 days (dilution experiment) at 20 cm deep. We monitored the effects of N and P enrichment and dilution o

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Vadeboncoeur, Yvonne, and Alan D. Steinman. "Periphyton Function in Lake Ecosystems." Scientific World JOURNAL 2 (2002): 1449–68. http://dx.doi.org/10.1100/tsw.2002.294.

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Periphyton communities have received relatively little attention in lake ecosystems. However, evidence is increasing that they play a key role in primary productivity, nutrient cycling, and food web interactions. This review summarizes those findings and places them in a conceptual framework to evaluate the functional importance of periphyton in lakes. The role of periphyton is conceptualized based on a spatial hierarchy. At the coarsest scale, landscape properties such as lake morphometry, influence the amount of available habitat for periphyton growth. Watershed-related properties, such as l

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Doi, Hideyuki, Yasuhiro Takemon, Taichi Ohta, Yuko Ishida, and Eisuke Kikuchi. "Effects of reach-scale canopy cover on trophic pathways of caddisfly larvae in a Japanese mountain stream." Marine and Freshwater Research 58, no. 9 (2007): 811. http://dx.doi.org/10.1071/mf07067.

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Differences in trophic pathways between reaches with and without tree canopy cover above the channel were assessed using stable isotopes in a 1.4-km stretch of the Kamo River, Japan. The trophic pathways of two larval trichopteran species, a grazer (Goera joponica, Goeridae) inhabiting stone surfaces and a net-spinning filter-feeder (Stenopsyche marmorata, Stenopsychidae) inhabiting interstices of the stony stream bottom, were estimated using carbon and nitrogen isotopes in reaches with and without canopy cover in winter. The δ13C values of G. japonica were similar to those of periphyton at ea

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Dodds, Walter K., Val H. Smith, and Kirk Lohman. "Nitrogen and phosphorus relationships to benthic algal biomass in temperate streams." Canadian Journal of Fisheries and Aquatic Sciences 59, no. 5 (2002): 865–74. http://dx.doi.org/10.1139/f02-063.

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Knowledge of factors limiting benthic algal (periphyton) biomass is central to understanding energy flow in stream ecosystems and stream eutrophication. We used several data sets to determine how water column nutrients and nonnutrient factors are linked to periphytic biomass and if the ecoregion concept is applicable to nutrientperiphyton relationships. Literature values for seasonal means of biomass of periphyton, nutrient concentrations, and other stream characteristics were collected for almost 300 sampling periods from temperate streams. Data for benthic chlorophyll and nutrient concentra

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Bechara, José A., Guy Moreau, and Dolors Planas. "Top-Down Effects of Brook Trout (Salvelinus fontinalis) in a Boreal Forest Stream." Canadian Journal of Fisheries and Aquatic Sciences 49, no. 10 (1992): 2093–103. http://dx.doi.org/10.1139/f92-233.

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The impact of fish predation on epibenthic organisms at different trophic levels was studied in a series of replicated experimental outdoor channels fed by a boreal forest stream (Québec, Canada). Brook trout (Salvelinus fontinalis) were introduced into five of 10 channels according to a randomized block experimental design. Periphyton biomass (expressed as total chlorophyll a and total organic matter) and macroinvertebrate biomass were measured four times during the summer. The biomass of small insects such as Chironomidae was always higher in the presence than in the absence of fish, while t

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Iannino, Alessandra, Alexander Tim Ludwig Vosshage, Markus Weitere, and Patrick Fink. "Effects of phosphorus enrichment on the spatial heterogeneity of stream periphyton under uneven light conditions." Hydrobiologia 848, no. 11 (2021): 2721–29. http://dx.doi.org/10.1007/s10750-021-04591-0.

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AbstractSpatial variations in light and nutrient availability usually lead to a heterogeneous distribution of periphyton biomass within streams, but the effects of nutrient enrichment on periphyton heterogeneity are still poorly understood. We tested phosphorus enrichment effects on the heterogeneity of periphyton quantity and nutritional quality in an environment with uneven light conditions. Natural periphyton was grown at either high or low P supply in circular running water flumes, each of which was half shaded and half in light. After 3 weeks, periphyton biomass was significantly more het

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Atkins, Karen S., Scott H. Hackley, Brant C. Allen, Shohei Watanabe, John E. Reuter, and S. Geoffrey Schladow. "Variability in periphyton community and biomass over 37 years in Lake Tahoe (CA-NV)." Hydrobiologia 848, no. 8 (2021): 1755–72. http://dx.doi.org/10.1007/s10750-021-04533-w.

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AbstractNuisance periphyton blooms are occurring in oligotrophic lakes worldwide, but few lakes have documented changes in biomass through periphyton monitoring. For decades periphyton has caused concern about oligotrophic Lake Tahoe’s nearshore water quality. To determine whether eulittoral periphyton increased in Lake Tahoe, measures of biomass and dominant communities at 0.5 m below lake level have been monitored regularly at nine shoreline sites starting in 1982, with up to 54 additional sites monitored annually at peak biomass. Lake-wide, this metric of periphyton biomass has not increase

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Hill, Walter R. "Food Limitation and Interspecific Competition in Snail-Dominated Streams." Canadian Journal of Fisheries and Aquatic Sciences 49, no. 6 (1992): 1257–67. http://dx.doi.org/10.1139/f92-141.

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Food limitation and exploitative competition were implicated in two experiments on lotic grazers in eastern Tennessee. In a laboratory feeding experiment, grazing snails (Elimia clavaeformis) and caddisfly larvae (Neophylax etnieri) from upper White Oak Creek (WOC) grew 7 and 2 times faster, respectively, on a diet of high-biomass periphyton than they did on a diet of WOC periphyton. When fed on the high-biomass periphyton, both grazers accumulated disproportionately more neutral lipid, and snails increased their mean condition index 50% (ash-free dry mass per unit wet mass). Growth and condit

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Carlton, Richard G., and Robert G. Wetzel. "Distributions and fates of oxygen in periphyton communities." Canadian Journal of Botany 65, no. 5 (1987): 1031–37. http://dx.doi.org/10.1139/b87-143.

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Direct measurements with oxygen microelectrodes demonstrated that the distribution of dissolved oxygen in periphyton communities varied on a diurnal basis and was markedly different among periphyton types. During illumination, photosynthesis in periphyton resulted in oxygen supersaturation in microzones that were subsaturated or anoxic during darkness. The fate of oxygen produced within periphyton depended on the relative rates of production and consumption, the diffusion characteristics of the periphyton, physical and chemical interactions with the substratum, and the transport rate across th

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Tariq, Mohd, C. B. Kotnala, A. K. Dobriyal, and Sazia Tabassum. "Population structure and diversity of the periphyton community in the glacier-fed stream Balkhila at Siron from Garhwal Himalaya." Journal of Applied and Natural Science 14, no. 1 (2022): 163–71. http://dx.doi.org/10.31018/jans.v14i1.3282.

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The stream Balkhila is a glacier-fed and originates at higher altitudes from the Lal Mati glacier, flows through the famous Mandal valley of Garhwal Himalaya and finally merges with the Alaknanda River in Chamoli district of Uttarakhand. The present study aimed to assess the population structure, density and diversity of the periphyton community along with some detrimental ecological parameters in the glacier fed stream Balkhila for a period of two years on a monthly basis from November 2018 to October 2020. The stream Balkhila was represented by 17 periphytic genera belonging to 3 classes, na

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Das, D. N., S. K. Saikia, and A. K. Das. "Periphyton in rice–fish culture system: A case study from Arunachal Pradesh, India." Renewable Agriculture and Food Systems 22, no. 4 (2007): 316–19. http://dx.doi.org/10.1017/s1742170507001901.

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AbstractThe farmers of the Apatani tribe in Arunachal Pradesh, India have been raising a concurrent crop of fish successfully in their mountain valley rice plots for the past 40 years. They follow indigenous rice agronomy, ignoring the use of fertilizers, pesticides and even supplementary feed for the fish reared in the system. However, the yield levels of fish, ranging from 250 to 500 kg ha−1season−1, clearly support the role of other available resources within their wet rice fields. The investigation revealed that the rice itself provided the substrates for colonization and growth of periphy

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Zhao, Yanhui, Xiaofei Chen, Xiong Xiong, and Chenxi Wu. "Capture and Release of Phosphorus by Periphyton in Closed Water Systems Influenced by Illumination and Temperature." Water 11, no. 5 (2019): 1021. http://dx.doi.org/10.3390/w11051021.

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Periphyton is known to play an important role in the self-purification of aquatic ecosystems. However, little attention has been paid to the understanding of P distribution and its partitioning influenced by the physical parameters when periphyton is separated from the sediment. In this work, the effect of periphyton on the capture and release of phosphorus in closed water systems was studied and the influence of illumination and temperature conditions were investigated. Results showed that phosphorus was transferred from water to periphyton during the experiment at 15 °C, but periphyton turne

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Zhong, Wei, Weiqun Zhao, and Jianhui Song. "Responses of Periphyton Microbial Growth, Activity, and Pollutant Removal Efficiency to Cu Exposure." International Journal of Environmental Research and Public Health 17, no. 3 (2020): 941. http://dx.doi.org/10.3390/ijerph17030941.

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Periphyton is an effective matrix for the removal of pollutants in wastewater and has been considered a promising method of bioremediation. However, it still needs to be verified whether periphyton can maintain microbial activity and pollutant removal efficiency when dealing with the influence with complex components, and the underlying mechanisms of periphyton need to be revealed further. Herein, this study investigated the microbial growth, activity and functional responses of periphyton after removal of Cu from wastewater. Results showed that the cultivated periphyton was dominated by filam

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NIKORA, V. I., D. G. GORING, and B. J. F. BIGGS. "Some observations of the effects of micro-organisms growing on the bed of an open channel on the turbulence properties." Journal of Fluid Mechanics 450 (January 9, 2002): 317–41. http://dx.doi.org/10.1017/s0022112001006486.

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In this paper we report the results of an experimental study of periphyton–flow interactions conducted in a specially designed outdoor hydraulic flume. ‘Periphyton’ is a collective term for the micro-organisms which grow on stream beds, and includes algae, bacteria, and fungi, with algae usually the dominant and most conspicuous component. The main goals of the study are to identify potential effects of periphyton–flow interactions as well as the potential mechanisms of mass transfer in the near-bed region, which could influence periphyton growth and losses. The main results of the study may b

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Zanon, JE, NR Simões, and L. Rodrigues. "Effects of recurrent disturbances on the periphyton community downstream of a dammed watercourse." Brazilian Journal of Biology 73, no. 2 (2013): 253–58. http://dx.doi.org/10.1590/s1519-69842013000200005.

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We evaluate experimentally the effect of a sequential disturbance—desiccation—on the structure and dynamics of a periphytic algal community in a semilotic environment of the Upper Paraná River floodplain. We tested the hypothesis that the presence of recurrent disturbances have a direct negative effect on the attributes of the periphyton community. The sequential effect of desiccation on the periphytic community promoted its significant decrease in density, while the same was not observed in species richness. When desiccation was induced in a mature community, there was no difference in the co

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França, Raquel C. S., Maria Rosélia Marques Lopes, and Carla Ferragut. "Structural and successional variability of periphytic algal community in a Amazonian lake during the dry and rainy season (Rio Branco, Acre)." Acta Amazonica 41, no. 2 (2011): 257–66. http://dx.doi.org/10.1590/s0044-59672011000200010.

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The colonization process and successional patterns of a periphytic algal community were evaluated in a Amazonian Viveiro Lake (Rio Branco, Acre, Brazil). Sampling was performed over a period of 35 days; at four-day intervals for 20 days, and then at five-day intervals. Water sampling for physical, chemical and biological analyses was done during the dry and rainy season. Glass slides were used as artificial substrates for periphyton colonization. The structural community was evaluated through population density, algae class, diversity indices and descriptive species. Species richness, diversit

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Cattaneo, Antonella. "Size Distribution in Periphyton." Canadian Journal of Fisheries and Aquatic Sciences 44, no. 11 (1987): 2025–28. http://dx.doi.org/10.1139/f87-250.

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When periphytic organisms growing on artificial plants were grouped in logarithmically increasing size classes, patterns in the distribution of biomass were consistent over the season and under different grazing regimes, despite taxonornical changes in the dominant taxa of algae and invertebrates. The amount in each size class was not constant, and instead, certain classes tended to have values consistently lower or higher than the mean. The locations of these peaks and troughs in the size distributions coincided with those observed in lake plankton. Despite these irregularities, the hypothesi

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