The influence of El Niño-induced drought on cyanobacterial community structure in a shallow tropical reservoir (Koka Reservoir, Ethiopia)

APHA (1999) Standard methods for the examination of water and wastewater, vol 2. American Public Health Association, Washington

Backer LC (2002) Cyanobacterial harmful algal blooms (CyanoHABs): developing a public health response. Lake Reserv Manag 18(1):20–31

Baker TJ, Miller SN (2013) Using the Soil and Water Assessment Tool (SWAT) to assess land use impact on water resources in an East African watershed. J Hydrol 486:100–111

Barber RT, Sanderson MP, Lindley ST, Chai F, Newton J, Trees CC, Foley DG, Chavez FP (1996) Primary productivity and its regulation in the equatorial Pacific during and following the 1991–1992 El Nino. Deep Sea Res Part II 43(4–6):933–969

Blanchot J, Rodier M (1996) Picophytoplankton abundance and biomass in the western tropical Pacific Ocean during the 1992 El Niño year: results from flow cytometry. Deep Sea Res Part I 43(6):877–895

Blomqvist P, Pettersson A, Hyenstrand P (1994) Ammonium-nitrogen—a key regulatory factor causing dominance of non-nitrogen-fixing cyanobacteria in aquatic systems. Arch Hydrobiol 132(2):141–164

Bonilla S, Aubriot L, Soares MCS, González-Piana M, Fabre A, Huszar VL, Lürling M, Antoniades D, Padisák J, Kruk C (2012) What drives the distribution of the bloom-forming cyanobacteria Planktothrix agardhii and Cylindrospermopsis raciborskii? FEMS Microbiol Ecol 79(3):594–607

Bouvy M, Falcão D, Marinho M, Pagano M, Moura A (2000) Occurrence of Cylindrospermopsis (Cyanobacteria) in 39 Brazilian tropical reservoirs during the 1998 drought. Aquat Microb Ecol 23(1):13–27

Bouvy M, Nascimento SM, Molica RJ, Ferreira A, Huszar V, Azevedo SM (2003) Limnological features in Tapacurá reservoir (northeast Brazil) during a severe drought. Hydrobiologia 493(1):115–130

Briand J, Robillot C, Quiblier-Lloberas C, Humbert J, Couté A, Bernard C (2002) Environmental context of Cylindrospermopsis raciborskii (Cyanobacteria) blooms in a shallow pond in France. Water Res 36(13):3183–3192

Câmara F, Rocha O, Pessoa E, Chellappa S, Chellappa N (2015) Morphofunctional changes of phytoplankton community during pluvial anomaly in a tropical reservoir. Braz J Biol 75(3):628–637

Carmichael W, Evans W, Yin Q, Bell P, Moczydlowski E (1997) Evidence for paralytic shellfish poisons in the freshwater cyanobacterium Lyngbya wollei (Farlow ex Gomont) comb. nov. Appl Environ Microbiol 63(8):3104–3110

Cronberg G, Komárek J (2004) Some nostocalean cyanoprokaryotes from lentic habitats of Eastern and Southern Africa. Nova Hedwigia 78(1–2):71–106

Crossetti LO, Bicudo CEDM (2008) Phytoplankton as a monitoring tool in a tropical urban shallow reservoir (Garças Pond): the assemblage index application. Hydrobiologia 610(1):161–173

Dokulil MT, Teubner K (2000) Cyanobacterial dominance in lakes. Hydrobiologia 438(1):1–12

Donald DB, Bogard MJ, Finlay K, Bunting L, Leavitt PR (2013) Phytoplankton-specific response to enrichment of phosphorus-rich surface waters with ammonium, nitrate, and urea. PLoS ONE 8(1):e53277

Fabbro LD, Duivenvoorden LJ (2000) A two-part model linking multidimensional environmental gradients and seasonal succession of phytoplankton assemblages. Hydrobiologia 438(1):13–24

Falconer IR, Humpage AR (2005) Health risk assessment of cyanobacterial (blue-green algal) toxins in drinking water. Int J Environ Res Public Health 2(1):43–50

Figueredo CC, Giani A (2009) Phytoplankton community in the tropical lake of Lagoa Santa (Brazil): conditions favoring a persistent bloom of Cylindrospermopsis raciborskii. Limnol Ecol Manag Inland Waters 39(4):264–272

Fristachi A, Sinclair JL, Hall S, Berkman JAH, Boyer G, Burkholder J, Burns J, Carmichael W, DuFour A, Frazier W (2008) Occurrence of cyanobacterial harmful algal blooms workgroup report. In: Hudnell HK (ed) Cyanobacterial harmful algal blooms: state of the science and research needs. Springer, New York, pp 45–103

Gleixner S, Keenlyside N, Viste E, Korecha D (2016) The El Niño effect on Ethiopian summer rainfall. Clim Dyn 49:1865–1883

Gleixner S, Keenlyside N, Viste E, Korecha D (2017) The El Niño effect on Ethiopian summer rainfall. Clim Dyn 49(5–6):1865–1883

Harris GP, Baxter G (1996) Interannual variability in phytoplankton biomass and species composition in a subtropical reservoir. Freshw Biol 35(3):545–560

Howarth RW, Marino R, Lane J, Cole JJ (1988) Nitrogen fixation in freshwater, estuarine, and marine ecosystems 1 Rates and importance. Limnol Oceanogr 33(4part2):669–687

Ibelings BW, Chorus I (2007) Accumulation of cyanobacterial toxins in freshwater “seafood” and its consequences for public health: a review. Environ Pollut 150(1):177–192

Jacox MG, Hazen EL, Zaba KD, Rudnick DL, Edwards CA, Moore AM, Bograd SJ (2016) Impacts of the 2015–2016 El Niño on the California Current System: early assessment and comparison to past events. Geophys Res Lett 43(13):7072–7080

Kebede E, Willén E (1996) Phytoplankton in a salinity-alkalinity series of lakes in the Ethiopian Rift Valley. Acta Universitatis Upsaliensis

Kebede E, Willén E (1998) Phytoplankton in a salinity-alkalinity series of lakes in the Ethiopian Rift Valley. Hydrobiol Suppl Vol 89:63–96

Kenkel N (2006) On selecting an appropriate multivariate analysis. Can J Plant Sci 86(3):663–676

Kosten S, Huszar VL, Bécares E, Costa LS, Donk E, Hansson LA, Jeppesen E, Kruk C, Lacerot G, Mazzeo N (2012) Warmer climates boost cyanobacterial dominance in shallow lakes. Glob Change Biol 18(1):118–126

L’Heureux ML, Takahashi K, Watkins AB, Barnston AG, Becker EJ, Di Liberto TE, Gamble F, Gottschalck J, Halpert MS, Huang B (2017) Observing and predicting the 2015/16 El Niño. Bull Am Meteor Soc 98(7):1363–1382

Lepš J, Šmilauer P (2003) Multivariate analysis of ecological data using CANOCO. Cambridge University Press, Cambridge

Liu WT, Tang W, Hu H (1998) Spaceborne sensors observe El Niño’s effects on ocean and atmosphere in North Pacific. EOS Trans Am Geophys Union 79(21):249–252

Liu X, Lu X, Chen Y (2011) The effects of temperature and nutrient ratios on Microcystis blooms in Lake Taihu, China: an 11-year investigation. Harmful Algae 10(3):337–343

Major Y, Kifle D, Niedrist GH, Sommaruga R (2017) An isotopic analysis of the phytoplankton–zooplankton link in a highly eutrophic tropical reservoir dominated by cyanobacteria. J Plankton Res 39(2):220–231

Marinho MM, de Huszar V (2002) Nutrient availability and physical conditions as controlling factors of phytoplankton composition and biomass in a tropical reservoir (Southeastern Brazil). (With 8 figures and 6 tables). Archiv fur Hydrobiologie 153(3):443–468

McGregor GB, Fabbro LD (2000) Dominance of Cylindrospermopsis raciborskii (Nostocales, Cyanoprokaryota) in Queensland tropical and subtropical reservoirs: implications for monitoring and management. Lakes Reserv Res Manag 5(3):195–205

Mesfin M, Tudorancea C, Baxter R (1988) Some limnological observations on two Ethiopian hydroelectric reservoirs: Koka (Shewa administrative district) and Finchaa (Welega administrative district). Hydrobiologia 157(1):47–55

Moisander PH, Cheshire LA, Braddy J, Calandrino ES, Hoffman M, Piehler MF, Paerl HW (2012) Facultative diazotrophy increases Cylindrospermopsis raciborskii competitiveness under fluctuating nitrogen availability. FEMS Microbiol Ecol 79(3):800–811

Nalewajko C, Murphy TP (2001) Effects of temperature, and availability of nitrogen and phosphorus on the abundance of Anabaena and Microcystis in Lake Biwa, Japan: an experimental approach. Limnology 2(1):45–48

Padisák J (1997) Cylindrospermopsis raciborskii (Woloszynska) Seenayya et Subba Raju, an expanding, highly adaptive cyanobacterium: worldwide distribution and review of its ecology. Archiv Für Hydrobiologie Supplementband Monographische Beitrage 107(4):563–593

Paerl HW, Huisman J (2009) Climate change: a catalyst for global expansion of harmful cyanobacterial blooms. Environ Microbiol Rep 1(1):27–37

Paerl HW, Xu H, McCarthy MJ, Zhu G, Qin B, Li Y, Gardner WS (2011) Controlling harmful cyanobacterial blooms in a hyper-eutrophic lake (Lake Taihu, China): the need for a dual nutrient (N & P) management strategy. Water Res 45(5):1973–1983

Philip S, Kew SF, Jan van Oldenborgh G, Otto F, O’Keefe S, Haustein K, King A, Zegeye A, Eshetu Z, Hailemariam K (2018) Attribution analysis of the Ethiopian drought of 2015. J Clim 31(6):2465–2486

Reichwaldt ES, Ghadouani A (2012) Effects of rainfall patterns on toxic cyanobacterial blooms in a changing climate: between simplistic scenarios and complex dynamics. Water Res 46(5):1372–1393

Reynolds CS (2006) The ecology of phytoplankton. Cambridge University Press, Cambridge

Robarts RD, Zohary T (1987) Temperature effects on photosynthetic capacity, respiration, and growth rates of bloom-forming cyanobacteria. N Z J Mar Freshw Res 21(3):391–399

Rückert GV, Giani A (2004) Effect of nitrate and ammonium on the growth and protein concentration of Microcystis viridis Lemmermann (Cyanobacteria). Braz J Bot 27(2):325–331

Salinger MJ (2005) Climate variability and change: past, present and future—an overview. In: Increasing climate variability and change. Springer, pp 9–29

Schindler DW (2012) The dilemma of controlling cultural eutrophication of lakes. In: Proc R Soc B. The Royal Society, p rspb20121032

Schindler DW, Hecky R, Findlay D, Stainton M, Parker B, Paterson M, Beaty K, Lyng M, Kasian S (2008) Eutrophication of lakes cannot be controlled by reducing nitrogen input: results of a 37-year whole-ecosystem experiment. Proc Natl Acad Sci 105(32):11254–11258

Scott JT, McCarthy MJ (2010) Nitrogen fixation may not balance the nitrogen pool in lakes over timescales relevant to eutrophication management. Limnol Oceanogr 55(3):1265–1270

Sinha R, Pearson LA, Davis TW, Burford MA, Orr PT, Neilan BA (2012) Increased incidence of Cylindrospermopsis raciborskii in temperate zones—is climate change responsible? Water Res 46(5):1408–1419

Soares MCS, Huszar VL, Miranda MN, Mello MM, Roland F, Lürling M (2013a) Cyanobacterial dominance in Brazil: distribution and environmental preferences. Hydrobiologia 717(1):1–12

Soares MCS, Lürling M, Huszar VL (2013b) Growth and temperature-related phenotypic plasticity in the cyanobacterium Cylindrospermopsis raciborskii. Phycol Res 61(1):61–67

Stüken A, Rücker J, Endrulat T, Preussel K, Hemm M, Nixdorf B, Karsten U, Wiedner C (2006) Distribution of three alien cyanobacterial species (Nostocales) in northeast Germany: Cylindrospermopsis raciborskii, Anabaena bergii and Aphanizomenon aphanizomenoides. Phycologia 45(6):696–703

Tilman D, Kilham SS, Kilham P (1982) Phytoplankton community ecology: the role of limiting nutrients. Annu Rev Ecol Syst 13(1):349–372

Wang H, Wang H (2009) Mitigation of lake eutrophication: loosen nitrogen control and focus on phosphorus abatement. Prog Nat Sci 19(10):1445–1451

Watkinson A, O’Neil J, Dennison W (2005) Ecophysiology of the marine cyanobacterium, Lyngbya majuscula (Oscillatoriaceae) in Moreton Bay, Australia. Harmful Algae 4(4):697–715

Whitehead P, Wilby R, Battarbee R, Kernan M, Wade AJ (2009) A review of the potential impacts of climate change on surface water quality. Hydrol Sci J 54(1):101–123

Willén E, Ahlgren G, Tilahun G, Spoof L, Neffling M-R, Meriluoto J (2011) Cyanotoxin production in seven Ethiopian Rift Valley lakes. Inland Waters 1(2):81–91

Yamamoto Y, Nakahara H (2005) Competitive dominance of the cyanobacterium Microcystis aeruginosa in nutrient-rich culture conditions with special reference to dissolved inorganic carbon uptake. Phycol Res 53(3):201–208

Yamamoto Y, Shiah FK (2012) Factors related to the dominance of Cylindrospermopsis raciborskii (cyanobacteria) in a shallow pond in northern Taiwan. J Phycol 48(4):984–991

Zhai P, Yu R, Guo Y, Li Q, Ren X, Wang Y, Xu W, Liu Y, Ding Y (2016) The strong El Niño of 2015/16 and its dominant impacts on global and China’s climate. J Meteorol Res 30(3):283–297

Zhang M, Duan H, Shi X, Yu Y, Kong F (2012) Contributions of meteorology to the phenology of cyanobacterial blooms: implications for future climate change. Water Res 46(2):442–452