Your search found 11 records
1 Moreau, J. (Ed.) 1997. Advances in the ecology of Lake Kariba. Harare, Zimbabwe: University of Zimbabwe Publications. 271p.
Lakes ; Ecology ; Ecosystems ; Hydrology ; Water quality ; Nutrients ; Chlorophylls ; Nitrogen fixation ; Phytoplankton ; Zooplankton ; Invertebrates ; Aquatic environment ; Fisheries / Africa / Zimbabwe / Zambia / Zambezi River / Lake Kariba
(Location: IWMI-HQ Call no: 577.63 G100 MOR Record No: H039342)
2 Finlayson, Max; Farrell, T. P.; Griffiths, D. J. 1984. The hydrobiology of five man-made lakes in North-Western Queensland. Proceedings of the Royal Society of Queensland, 95:29-40.
Lakes ; Hydrobiology ; Aquatic plants ; Phytoplankton ; Nutrients / Australia / North Western Queensland / Mount Isa / Lake Moondarra / Lake Mary Kathleen / Rifle Creek / Lake Corella / Lake Julius
(Location: IWMI-HQ Call no: P 7744 Record No: H039694)
3 Finlayson, Max; Gillies, J. C. 1982. Biological and physicochemical characteristics of the Ross River Dam, Townsville. Australian Journal of Marine and Freshwater Research, 33:811-827.
Dams ; Lakes ; Salvinia molesta ; Aquatic weeds ; Surveys ; Phytoplankton ; Chlorophylls ; Fish ; Water quality ; Nutrients / Australia / Queensland / Townsville / Ross River Dam
(Location: IWMI-HQ Call no: P 7754 Record No: H039704)
4 Gordon, D. M.; Finlayson, Max; McComb, A. J. 1981. Nutrients and phytoplankton in three shallow, freshwater lakes of different trophic status in Western Australia. Australian Journal of Marine and Freshwater Research, 32:541-553.
Lakes ; Phytoplankton ; Nutrients / Australia / Western Australia / Perth / Swan Coastal Plain / Lake Joondalup / Lake Monger / Loch McNess / Lake Joondalup
(Location: IWMI-HQ Call no: P 7757 Record No: H039707)
5 Atkins, R. P.; Congdon, R. A.; Finlayson, Max; Gordon, D. M. 1977. Lake Leschenaultia: an oligotrophic artificial lake in Western Australia. Journal of the Royal Society of Western Australia, 59(3):65-70.
Lakes ; Reservoirs ; Aquatic plants ; Phytoplankton ; Water quality ; Oxygen ; Cation ; Silica ; Phosphorus ; Nitrogen / Australia / Western Australia / Chidlow / Lake Leschenaultia
(Location: IWMI-HQ Call no: P 7762 Record No: H039712)
6 Silva, E. I. L. 2004. Phytoplankton characteristics, trophic evolution, and nutrient dynamics in an urban eutrophic lake: Kandy Lake in Sri Lanka. In Reddy, M. V. (Ed.). Restoration and management of tropical eutrophic lakes. Enfield, NH, USA: Science Publishers, Inc. pp.227-270.
Lakes ; Ecosystems ; Phytoplankton ; Water pollution ; Water quality ; Nutrients / Sri Lanka / Kandy Lake
(Location: IWMI HQ Call no: P 7998 Record No: H041121)
7 Silva, E. I. L. 2006. Ecology of phytoplankton in tropical waters: introduction to the topic and ecosystem changes from Sri Lanka. Asian Journal of Water, Environment and Pollution, 4(1): 25-35.
(Location: IWMI HQ Record No: H041122)
Some aspects of ecology of phytoplankton in four distinct types of standing water bodies were Diagnosed using the outcome of a long-term study conducted in Sri Lankan reservoirs on species composition and richness, temporal and seasonal patterns in relation to environmental variables. Nearly 150 taxa belonging to nine taxonomic groups were identified of which some have been reported in previous studies. The numerical analysis of the overall species lists shows that the taxonomic composition, species richness and sequential periodicity varies largely among different types of environments with higher resemblance for water bodies located at comparable eco-regions with similar morphological, hydraulic, hydro-chemical and trophic features. Relative abundance and species spectrum can be used to classify the water bodies into oligo-mesotrophic (large and deep canyon-shaped, newly built hydropower reservoirs), meso-eutrophic (dry zone irrigation tanks) and eutrophic-heterotrophic (urban water bodies) which show distinct annual trophic alteration influenced by monsoonal rainfall. Unlike in temperate regions, they exhibit non-rhythmic successional episodes, some prefer specific chemical environment and some taxa become more stable when essential nutrients are in surplus. The numerical dominance or biomass is not regulated by grazing but a large amount of phytoplankton biomass is lost during water release from the euphotic zone.
8 Jayatissa, L. P.; Silva, E. I. L.; McElhiney, J.; Lawton, L. A. 2006. Occurrence of toxigenic cyanobacterial blooms in freshwaters of Sri Lanka. Systematic and Applied Microbiology, 29: 156-164.
Phytoplankton ; Cyanobacteria ; Eutrophication ; Water quality ; Water pollution ; Reservoirs ; Tanks ; Irrigation water / Sri Lanka / Tissawewa / Colombo Lake / Kandy Lake / Situlpawwa Lake
(Location: IWMI HQ Call no: P 7999 Record No: H041123)
A previous pioneering study of freshwater bodies in Sri Lanka revealed the presence of toxic cyanobacteria in three out of four water bodies tested. It was therefore important to perform a more detailed investigation into the presence of cyanobacteria and their toxins throughout Sri Lanka. The country has a long history of well-planned water management with the agricultural economy and drinking water supply still dependent on thousands of man-made tanks. Seventeen reservoirs from different user categories and different climatic zones were selected to study variations in phytoplankton communities with relation to major nutrients, with particular emphasis on cyanobacteria. The study was carried out during a two-year period and heavy growths or blooms of cyanobacteria observed during the study period were tested for microcystins. The results clearly categorised the 17 reservoirs into four groups parallel to the classification based on the user categories of water bodies. Biomass of total phytoplankton, the abundance of cyanobacteria, the dominance of Microcystis spp. and concentration of nitrate (N) and total phosphorous (P) were the lowest in drinking water bodies and the highest in aesthetic water bodies. Irrigation water bodies showed the second lowest values for phytoplankton biomass, and concentration of N and P, while hydropower reservoirs showed the second highest values for the same parameters. The fraction of cyanobacteria in irrigation waters was higher than that in hydropower reservoirs, but surprisingly the dominance of Microcystis spp. was reversed. Possible reasons for these variations are discussed. More than half of the bloom material tested contained microcystins up to 81microgl(-1). Our findings indicate the potential for high-risk situations due to toxigenic cyanobacterial blooms in susceptible freshwaters of Sri Lanka.
9 Dumont, H. J. (Ed.) 2009. The Nile: origin, environments, limnology and human use. New York, NY, USA: Springer. 818p. (Monographiae Biologicae, Vol. 89)
River basins ; History ; Ecology ; Ecosystems ; Hydrology ; Natural resources ; Climate ; Limnology ; Biodiversity ; Water quality ; Water pollution ; Bacteria ; Viruses ; Lakes ; Plankton ; Zooplankton ; Phytoplankton ; Fish ; Fisheries ; Benthos ; Crustacea ; Mollusca ; Aquatic plants ; Aquatic insects ; Birds ; Water law / Africa / Ethiopia / Egypt / Sudan / Uyganda / Kenya / Nile River Basin / Rift Valley / Lake Tana / Blue Nile / White Nile / Lake Nasser / Lake Nubia / Lake Kyoga / Lake Victoria / Lake Albert / Lake Turkana / Lake Manzala / Chad Basin
(Location: IWMI HQ Call no: 577.64 G100 DUM Record No: H042456)
10 Chen, Y.; Takara, K.; Cluckie, I. D.; de Smedt, F. H. 2004. GIS and remote sensing in hydrology, water resources and environment. Wallingford, UK: International Association of Hydrological Sciences (IAHS). 422p. (IAHS Publication 289)
GIS ; Remote sensing ; Hydrology ; Water resources ; Water management ; Environmental effects ; Flood control ; Flood plains ; Models ; Forecasting ; Watersheds ; Stream flow ; River basins ; Reservoirs ; Catchment areas ; Lakes ; Land use ; Water power ; Dams ; Management information systems ; Wetlands ; Water quality ; Coastal waters ; Ecology ; Pollutant load ; Runoff ; Sediment ; Precipitation ; Desertification ; Soil erosion ; Urban areas ; Irrigation ; Phytoplankton ; Chlorophylls ; Evapotranspiration ; Carbon / China / Netherlands / Croatia / Hungary / Malaysia / USA / England / Wales / Feilaixia Reservoir / Guangdong / Wei River Basin / Upper Yellow River / Meuse Basin / Drava River / Mura River / Pearl River Delta / Taihu Basin / Danube River Basin / Longyangxia Reservoir / Everglades / Three Gorges Area
(Location: IWMI HQ Call no: 526.0285 G000 CHE Record No: H046621)
(0.41 MB)
11 Nava, V.; Leoni, B. 2021. A critical review of interactions between microplastics, microalgae and aquatic ecosystem function. Water Research, 188:116476. [doi: https://doi.org/10.1016/j.watres.2020.116476]
Microplastics ; Algae ; Aquatic ecosystems ; Phytoplankton ; Cyanobacteria ; Environmental factors ; Aquatic environment ; Biofouling ; Plastics ; Seasonal variation
(Location: IWMI HQ Call no: e-copy only Record No: H050110)
(0.68 MB)
With the widespread occurrence of microplastics in aquatic ecosystems having been firmly established, the focus of research has shifted towards the assessments of their influence on ecosystem functions and food webs. This includes interactions between microplastics and microalgae, as fundamental components at the base of aquatic food webs and pivotal organisms in a wide range of ecosystem functions. In this review, we present the current state of knowledge on microalgae–microplastic interactions and summarize the potential effect on their respective fate. Microplastics can and do interact with microalgae and the available literature has suggested that the epiplastic community of microalgae differs consistently from the surrounding aquatic communities; however, it is still not clear whether this different colonization is linked to the composition of the surface or more to the availability of a “hard” substrate on which organisms can attach and grow. Further studies are needed to understand to what extent the properties of different plastic materials and different environmental factors may affect the growth of microalgae on plastic debris. Biofouling may alter microplastic properties, especially increasing their density, consequently affecting the vertical fluxes of plastics. Moreover, microplastics may have toxic effects on microalgae, which could be physical or related to chemical interactions with plasticizers or other chemicals associated with plastics, with consequences for algal growth, photosynthetic activity, and morphology. Microplastics seems to have the potential to affect not only the quality (e.g., fatty acids and lipids composition, food dilution effect) but also the quantity of algal production, both positively and negatively. This may have consequences for energy fluxes, which may propagate throughout the whole food web and alter aquatic productivity. Even though experimental results have indicated reciprocal impacts between plastics and microalgae, it is currently difficult to predict how these impacts may manifest themselves at the ecosystem level. Therefore, further studies are needed to address this important topic.
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