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1. Fatty Acids to Quantify Phytoplankton Functional Groups and Their Spatiotemporal Dynamics in a Highly Turbid Estuary

Author:
Cañavate, José-Pedro; van Bergeijk, Stefanie; Giráldez, Inmaculada; González-Ortegón, Enrique; Vílas, César
Source:
Estuaries and coasts 2019 v.42 no.8 pp. 1971-1990
ISSN:
1559-2723
Subject:
Bacillariophyceae; Cyanobacteria; community structure; data collection; estuaries; factor analysis; fatty acids; light intensity; moieties; multivariate analysis; nutrients; phytoplankton; pigments; river flow; rivers; salinity; seston; water temperature
Abstract:
... Phytoplankton community composition expresses estuarine functionality and its assessment can be improved by implementing novel quantitative fatty acid–based procedures. Fatty acids have similar potential to pigments for quantifying phytoplankton functional groups but have been far less applied. A recently created dataset containing vast information on fatty acids of phytoplankton taxonomic groups ...
DOI:
10.1007/s12237-019-00629-8

2. Is Karenia brevis really a low-light-adapted species?

Author:
Tilney, Charles L.; Shankar, Sugandha; Hubbard, Katherine A.; Corcoran, Alina A.
Source:
Harmful algae 2019 v.90 pp. 101709
ISSN:
1568-9883
Subject:
Bacillariophyceae; Cyanobacteria; Karenia brevis; case studies; models; neurotoxicity; photons; photosynthesis; phytoplankton; poisonous algae; prediction; summer; water temperature; winter; Florida; Gulf of Mexico
Abstract:
... Despite nearly annual blooms of the neurotoxic dinoflagellate Karenia brevis (Davis) G. Hansen and Moestrup in the Gulf of Mexico, defining the suite of biological traits that explain its proliferation has remained challenging. Studies have described K. brevis as a low-light-adapted species, incapable of sustaining growth under high light, which is at odds with observed surface aggregations someti ...
DOI:
10.1016/j.hal.2019.101709

3. Simulating seasonal variability of phytoplankton in stream water using the modified SWAT model

Author:
Pyo, JongCheol; Pachepsky, Yakov A.; Kim, Minjeong; Baek, Sang-Soo; Lee, Hyuk; Cha, YoonKyung; Park, Yongeun; Cho, Kyung Hwa
Source:
Environmental modelling & software 2019 v.122 pp. 104073
ISSN:
1364-8152
Subject:
Bacillariophyceae; Chlorophyta; Cyanobacteria; Soil and Water Assessment Tool model; algae; algal blooms; best management practices; biomass; computer software; die-off; multipliers; nutrients; phytoplankton; prediction; seasonal variation; streams; temperature; watersheds
Abstract:
... The ability to simulate algal systems is critical for watershed-scale models. The objective of this study was to develop and evaluate a modified algal module that simulates the dynamics of three major algal groups (cyanobacteria, green algae, and diatoms) in a stream using variables available in the Soil and Water Assessment Tool. The proposed module 1) models the dynamics of the three algal group ...
DOI:
10.1016/j.envsoft.2017.11.005

4. Bioindication of the Influence of Oil Production on Sphagnum Bogs in the Khanty-Mansiysk Autonomous Okrug–Yugra, Russia

Author:
Skorobogatova, Olga; Yumagulova, Elvira; Storchak, Tatiana; Barinova, Sophia
Source:
Diversity 2019 v.11 no.11
ISSN:
1424-2818
Subject:
Bacillariophyceae; Charophyta; Cyanobacteria; Euglenozoa; Sphagnum; algae; bogs; decision making; ecosystems; monitoring; oil fields; oils; pH; pollution; salinity; species richness; Russia
Abstract:
... Algal diversity in the bogs of the Ershov oil field of the Khanty-Mansiysk Autonomous Okrug–Yugra (KMAO-Yugra) with the gradient of oil pollution between 255 and 16,893 mg kg−1 has been studied with the help of bioindication methods and ecological mapping. Altogether 91 species, varieties, and forms of algae and cyanobacteria from seven divisions have been revealed for the first time f ...
DOI:
10.3390/d11110207

5. Effects of different culture periods of commercial invasive red alga Kappaphycus alvarezii (Doty) Doty on plankton community structures in tropical marine environment, Southeast coast of India

Author:
Rajaram, R.; Rameshkumar, S.
Source:
Regional studies in marine science 2019 v.32 pp. 100906
ISSN:
2352-4855
Subject:
Bacillariophyceae; Copepoda; Cyanobacteria; Kappaphycus alvarezii; Miozoa; analysis of variance; biochemical oxygen demand; chlorophyll; coasts; community structure; crop yield; farming systems; gross primary productivity; invasive species; marine environment; monsoon season; net primary productivity; nitrates; pH; phytoplankton; population density; salinity; species diversity; India
Abstract:
... The commercial invasive red alga Kappaphycus alvarezii was cultivated by floating raft technique for the assessment of crop yields, growth rates and their impacts on the plankton community related to hydrobiological parameters in the Munakadu coast, Southeastern India for the period of one year from February 2016 to January 2017. The ANOVA results showed that the crop yield and daily growth rate o ...
DOI:
10.1016/j.rsma.2019.100906

6. Interactive effects of temperature and nutrients on the phytoplankton community in an urban river in China

Author:
Yang, Jing; Wang, Fei; Lv, Junping; Liu, Qi; Nan, Fangru; Liu, Xudong; Xu, Lan; Xie, Shulian; Feng, Jia
Source:
Environmental monitoring and assessment 2019 v.191 no.11 pp. 688
ISSN:
0167-6369
Subject:
Bacillariophyceae; Chlorophyta; Cyanobacteria; aquatic ecosystems; data collection; ecosystem management; environmental factors; eutrophication; nutrient requirements; nutrients; phytoplankton; rivers; structural equation modeling; surface water; total nitrogen; total phosphorus; water temperature; wet season; China
Abstract:
... Understanding the relative impact sizes of environmental factors and nutrients on the high annual variation of phytoplankton abundance in eutrophic rivers is important for aquatic ecosystem management efforts. In this study, we used phytoplankton dynamic datasets in the eutrophic Fenhe River to show the variations and drivers of phytoplankton abundance under complex, fluctuating environmental cond ...
DOI:
10.1007/s10661-019-7847-8

7. Long‐term change of phytoplankton in Lake Kivu: The rise of the greens

Author:
Rugema, Edouard; Darchambeau, François; Sarmento, Hugo; Stoyneva‐Gärtner, Maya; Leitao, Maria; Thiery, Wim; Latli, Adrien; Descy, Jean‐Pierre
Source:
Freshwater biology 2019 v.64 no.11 pp. 1940-1955
ISSN:
0046-5070
Subject:
Bacillariophyceae; Chlorophyta; Cosmarium; Cyanobacteria; anthropogenic activities; biomass; chlorophyll; climate; community structure; euphotic zone; lakes; latitude; nitrogen; phosphorus; phytoplankton; seasonal variation; temperature profiles; time series analysis; Eastern Africa; Indian Ocean
Abstract:
... Phytoplankton time‐series enable the observation of recurrent seasonal patterns on community composition, but drastic shifts in community structure are rarely observed, unless linked to anthropogenic impacts (e.g. changes in nutrient inputs). Here, we report a unique case of non‐seasonal, multiannual regime shift of phytoplankton community structure in Lake Kivu, East Africa, and explore the possi ...
DOI:
10.1111/fwb.13383

8. Relationship between seasonal variations of primary production, abiotic factors and phytoplankton composition in the coastal zone of the south-eastern part of the Baltic Sea

Author:
Kudryavtseva, Elena; Aleksandrov, Sergey; Bukanova, Tatiana; Dmitrieva, Olga; Rusanov, Igor
Source:
Regional studies in marine science 2019 v.32 pp. 100862
ISSN:
2352-4855
Subject:
Bacillariophyceae; Chlorophyta; Cyanobacteria; Miozoa; ammonium nitrogen; biomass; coasts; environmental factors; eutrophication; latitude; nitrates; nutrients; organic matter; phosphates; photosynthesis; phytoplankton; primary productivity; runoff; seasonal variation; spring; summer; Baltic Sea
Abstract:
... Seasonal variations in marine primary production (PP) in the coastal zone of the south-eastern part of the Baltic Sea were studied between April 2008 and April 2009. The spring PP maximum was observed to be limited by the concentration of nitrates. Following a decrease in photosynthetic consumption of nutrients, an increase in ammoniacal nitrogen due to the decomposition of organic matter and conc ...
DOI:
10.1016/j.rsma.2019.100862

9. The effects of run‐of‐river dam spill on Columbia River microplankton

Author:
Rose, Vanessa; Rollwagen‐Bollens, Gretchen; Bollens, Stephen M.; Zimmerman, Julie
Source:
River research and applications 2019 v.35 no.9 pp. 1478-1488
ISSN:
1535-1459
Subject:
Bacillariophyceae; Cyanobacteria; dams (hydrology); ecosystems; riparian areas; spring; summer; water flow; Columbia River; United States
Abstract:
... Dams, increasingly common in riverine systems worldwide, are particularly prevalent on the Columbia River (CR) in the United States. Hydroelectric projects, including both storage and run‐of‐river (i.e., minimal storage) structures, on the mainstem CR highly manage water flow, often by releasing water over (rather than through) dams as “spill.” To test the effects of run‐of‐river dam spill on micr ...
DOI:
10.1002/rra.3521

10. Variation in phytoplankton pigment composition in relation to mixing conditions in temperate South-Central Chilean lakes

Author:
Vannieuwenhuyze, Wim; Van de Vyver, Evelien; Van Wichelen, Jeroen; Vanormelingen, Pieter; Van Nieuwenhuyze, Wim; Daveloose, Ilse; De Jong, Rixt; De Blok, Reinhoud; Urrutia, Roberto; Tytgat, Bjorn; Verleyen, Elie; Vyverman, Wim
Source:
Limnologica 2019 v.79 pp. 125715
ISSN:
0075-9511
Subject:
Bacillariophyceae; Cyanobacteria; Miozoa; algae; altitude; biomarkers; chlorophyll; euphotic zone; freshwater lakes; light intensity; limnology; lutein; mixing; nutrient content; phytoplankton; primary productivity; radiation resistance; silica; summer; thermal stability; violaxanthin; volcanoes; watersheds; zeaxanthin; Chile
Abstract:
... Thermal lake properties are sensitive to changes in windiness and precipitation, and affect the physical and chemical properties of the water column, which in turn control phytoplankton dynamics and primary production. We assessed the use of phytoplankton pigment profiling as a potential indicator of stratification conditions in temperate lakes in South-Central Chile. Spring and early summer phyto ...
DOI:
10.1016/j.limno.2019.125715

11. Amino Acid Composition of Green Microalgae and Diatoms, Cyanobacteria, and Zooplankton (Review)

Author:
Kolmakova, A. A.; Kolmakov, V. I.
Source:
Inland water biology 2019 v.12 no.4 pp. 452-461
ISSN:
1995-0829
Subject:
Bacillariophyceae; Cyanobacteria; amino acid composition; amino acids; aquatic ecosystems; herbivores; microalgae; zooplankton
Abstract:
... We have reviewed foreign and domestic literature devoted to the study of the amino acid (AA) composition of aquatic organisms representing major groups of producers (green microalgae and diatoms, and cyanobacteria) and primary consumers (zooplankton). Based on published data, we estimate the composition of essential and nonessential AAs of microalgae, cyanobacteria, and zooplankton and determine t ...
DOI:
10.1134/S1995082919040060

12. The role of mixing in controlling resource availability and phytoplankton community composition

Author:
Villamaña, Marina; Marañón, Emilio; Cermeño, Pedro; Estrada, Marta; Fernández-Castro, Bieito; Figueiras, Francisco G.; Latasa, Mikel; Luis Otero-Ferrer, Jose; Reguera, Beatriz; Mouriño-Carballido, Beatriz
Source:
Progress in oceanography 2019
ISSN:
0079-6611
Subject:
Bacillariophyceae; Cyanobacteria; Hemiaulus; Miozoa; biomass; community structure; environmental factors; light intensity; marine environment; microstructure; mixing; nitrogen; nitrogen fixation; nutrient availability; nutrient content; photosynthesis; phytoplankton; pigments; regression analysis; subtropics; turbulent flow; Iberian Peninsula; Indian Ocean
Abstract:
... We investigate the role of mixing, through its effect on nutrient and light availability, as a driver of phytoplankton community composition in the context of Margalef́s mandala. Data on microstructure turbulence, irradiance, new nitrogen supply and phytoplankton composition were collected at 102 stations in three contrasting marine environments: the Galician coastal upwelling system of the northw ...
DOI:
10.1016/j.pocean.2019.102181

13. An Enhanced System with Macrophytes and Polyurethane Sponge as an Eco-Technology for Restoring Eutrophic Water: A Pilot Test

Author:
Wang, Yijie; Yin, Xinan; Cai, Yanpeng; Yang, Zhifeng
Source:
Water 2019 v.11 no.9
ISSN:
2073-4441
Subject:
Bacillariophyceae; Chlorophyta; Cyanobacteria; ammonium nitrogen; biofilm; biological treatment; chemical oxygen demand; dominant species; ecological restoration; equipment; eutrophication; lakes; macrophytes; nitrogen; nutrients; phosphorus; phytoplankton; polyurethanes; ponds; remediation; total nitrogen; total phosphorus; trophic relationships; water quality
Abstract:
... Water eutrophication is one of the most serious environmental problems in urban lakes and ponds due to the excessive nutrients. To deal with this problem, the development of methods for supporting ecological rehabilitation has been undertaken. Meanwhile, the trophic interactions during rehabilitation also have been analyzed. In this study, a new technique was employed to solve the water eutrophica ...
DOI:
10.3390/w11091828

14. Feeding by two closely related species of Chironomus (Diptera: Chironomidae) in south Baltic lagoons, with implications for competitive interactions and resource partitioning

Author:
Kornijów, Ryszard; Markiyanova, Marina; Lange, Evgenia
Source:
Aquatic ecology 2019 v.53 no.3 pp. 315-324
ISSN:
1386-2588
Subject:
Bacillariophyceae; Chironomus plumosus; Chlorophyta; Cyanobacteria; Oligochaeta; Rotifera; animals; conidia; deglutition; detritus; digestive system; eutrophication; feeding behavior; fungi; insect larvae; interspecific competition; pollen; salinity
Abstract:
... Four major categories of food items were determined in the gut content of chironomid larvae collected in the Curonian and Vistula Lagoons in the spring–summer period of 2009–2011. These were detritus (range from 88 to 92% of the gut content, by volume), matter of plant (2–7%) and animal origin (0.2–0.5%), and mineral particles (3–7%). Plant matter comprised pine pollen, conidia of fungi, cyanobact ...
DOI:
10.1007/s10452-019-09691-7

15. Impact of monsoon-induced discharge on phytoplankton community structure in the tropical Indian estuaries

Author:
Bharathi, M.D.; Sarma, V.V.S.S.
Source:
Regional studies in marine science 2019 v.31
ISSN:
2352-4855
Subject:
Bacillariophyceae; Cyanobacteria; biomass; brackish water; coasts; community structure; estuaries; marine science; particulates; phytoplankton; river flow; India
Abstract:
... To understand the influence of monsoon-induced river discharge and associated environmental changes on phytoplankton community structure in the Indian estuaries, physical and biogeochemical parameters were collected from 28 major and medium estuaries along the Indian coast during the peak discharge period. Relatively higher river discharge was recorded in the estuaries located in northern India as ...
DOI:
10.1016/j.rsma.2019.100795

16. Assessing uncertainty of hydrological and ecological parameters originating from the application of an ensemble of ten global-regional climate model projections in a coastal ecosystem of the lagoon of Venice, Italy

Author:
Pesce, M.; Critto, A.; Torresan, S.; Giubilato, E.; Pizzol, L.; Marcomini, A.
Source:
Ecological engineering 2019 v.133 pp. 121-136
ISSN:
0925-8574
Subject:
Bacillariophyceae; Cyanobacteria; General Circulation Models; chlorophyll; climate change; climatic factors; coastal ecosystems; coastal water; coasts; ecological models; hydrologic models; inorganic phosphorus; nitrogen; pollution load; summer; uncertainty; watersheds; winter; Italy
Abstract:
... With increasing evidences of climate change affecting coastal waters, there is a strong need to understand future climate conditions and assess the potential responses of delicate coastal ecosystems. Results of climate change studies based on only one GCM-RCM combination should be interpreted with caution as results are highly dependent on the assumptions of the selected combination. In this study ...
DOI:
10.1016/j.ecoleng.2019.04.011

17. Community-level changes in periphytic biofilm caused by copper contamination

Author:
Sousa, Mariana L.; Chow, Fungyi; Pompêo, Marcelo L. M.
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2401-2410
ISSN:
0921-8971
Subject:
Bacillariophyceae; Cyanobacteria; algicides; aquatic ecosystems; bioaccumulation; biofilm; chlorophyll; community structure; copper; food chain; mucilages; periphyton; photosynthesis; pollutants; primary productivity; sediments; temperature; toxicity
Abstract:
... Periphyton has been recognized as an important element in aquatic food chains due to its role in primary production. More recently, it has been used as bioindicator of contamination in reservoirs since biofilm analysis can support in understanding the impacts of bottom-up contaminants to the reservoirs. Copper (Cu) is one of these pollutants which has been used as an algicide; it accumulates in th ...
DOI:
10.1007/s10811-019-1734-0

18. Phytoplankton functional groups: Short‐term variation in a tropical tidal‐forced estuarine system

Author:
de Jesus Affe, Helen Michelle; Piedras, Fernanda Reinhardt; Santana, Lucineide Maria; Moser, Gleyci Aparecida Oliveira; Menezes, Mariângela; de Castro Nunes, José Marcos
Source:
Marine ecology 2019 v.40 no.4 pp. e12555
ISSN:
0173-9565
Subject:
Bacillariophyceae; Cyanobacteria; cluster analysis; dry season; environmental factors; estuaries; flagellum; functional diversity; hydrodynamics; mixing; nutrients; phytoplankton; salinity; surface water; temporal variation; tides; wet season
Abstract:
... Functional groups have become an important tool for characterizing communities of marine and estuarine environments. Their use also holds promise for a better understanding of the temporal dynamics of phytoplankton. This study aimed to evaluate the contributions of phytoplankton size fractions and functional groups characterizing short‐term variation throughout tidal cycles and between dry and rai ...
DOI:
10.1111/maec.12555

19. Ecological processes-driven distribution of net-algal diversity and carbon sequestration potential across the sewage effluent gradient of stabilization pond system

Author:
Sarkar (Paria), Dipanwita; Lahiri (Ganguly), Susmita; Ghosh, Debarati; Jana, B.B.
Source:
International journal of ecohydrology & hydrobiology 2019 v.19 no.3 pp. 464-472
ISSN:
1642-3593
Subject:
Bacillariophyceae; Chrysophyceae; Cyanobacteria; Euglenophyceae; biomass; carbon sequestration; clearcutting; fish culture; global carbon budget; municipal wastewater; net primary productivity; phytoplankton; ponds; seasonal variation; sediments; sewage effluent; waste lagoons; wetlands
Abstract:
... Spatial and seasonal variability of diversity, abundance and carbon sequestration potential of net-phytoplankton were examined across the sewage effluent of six wetlands in waste stabilization ponds used for the treatment of municipal wastewater cum fish culture. The values of the Shannon-Weiner diversity index for Myxophycaeae, Euglenophyceae, and Chrysophyceae were higher in the facultative pond ...
DOI:
10.1016/j.ecohyd.2018.10.003

20. Shipborne nutrient dynamics and impact on the eutrophication in the Baltic Sea

Author:
Raudsepp, Urmas; Maljutenko, Ilja; Kõuts, Mariliis; Granhag, Lena; Wilewska-Bien, Magda; Hassellöv, Ida-Maja; Eriksson, K. Martin; Johansson, Lasse; Jalkanen, Jukka-Pekka; Karl, Matthias; Matthias, Volker; Moldanova, Jana
Source:
The Science of the total environment 2019 v.671 pp. 189-207
ISSN:
0048-9697
Subject:
Bacillariophyceae; Cyanobacteria; air quality; atmospheric deposition; biogeochemical cycles; biomass; denitrification; detritus; ecosystems; estuaries; eutrophication; models; moieties; nitrogen; nitrogen fixation; nutrients; oxygen; phosphates; phosphorus; primary productivity; sediments; ships; total nitrogen; total phosphorus; traffic; Baltic Sea
Abstract:
... The Baltic Sea is a severely eutrophicated sea-area where intense shipping as an additional nutrient source is a potential contributor to changes in the ecosystem. The impact of the two most important shipborne nutrients, nitrogen and phosphorus, on the overall nutrient-phytoplankton-oxygen dynamics in the Baltic Sea was determined by using the coupled physical and biogeochemical model system Gene ...
DOI:
10.1016/j.scitotenv.2019.03.264