Seasonal succession, vertical distribution and long term variation of phytoplankton communities in two shallow forest lakes in eastern Finland

Holopainen, Anna‐Liisa; Niinioja, Riitta; Rämö, Anita

doi:10.1023/b:hydr.0000008555.92238.91

Cited by 19 publications

(10 citation statements)

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“…High contribution of G. semen, brown colour of water and low pH are often defined as stress factors influencing the qualitative and quantitative structure of a phytoplankton community (Willén 2003). In such lakes, species richness is low and often one species dominates (Cronberg et al 1988, Holopainen et al 2003. In the studied lakes, species richness was also low.…”

Section: Discussionmentioning

confidence: 92%

“…They are characterized as taxa, which similarly as G. semen, occurred abundantly in lakes with brown water and with the increased nutrient concentration (Hutorowicz et al 2006, Willén 2003. Domination of species from the genera Cryptomonas and Rhodomonas was observed during the whole vegetation season in Pieni Hietajarvi -a humic lake situated in forest of eastern Finland (Holopainen et al 2003).…”

Section: Discussionmentioning

confidence: 99%

“…These lakes are characterized by great variation of physicochemical water properties, in particular: reaction, conductivity, total phosphorus, total nitrogen, total organic carbon and intensity of the water colour (Holopainen et al 2003, Willén 2003, Górniak 2006. Diversity of morphometric features and physicochemical water properties of these lakes brings about great variability in taxonomic structure of the planktonic algae community, including dominant species and quantitative diversity of planktonic algae (their biomass, count and chlorophyll a concentration) (Reynolds 1984).…”

Section: Introductionmentioning

confidence: 99%

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Dystrophy or eutrophy: phytoplankton and physicochemical parameters in the functioning of humic lakes

Poniewozik

Wojciechowska

Solis

2011

Oceanological and Hydrobiological Studies

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The studies were carried out in six humic lakes (Polesie Region, Eastern Poland) in order to present a role of phytoplankton in relation to physical and chemical parameters characteristic of particular processes. On the basis of physical and chemical properties of waters (SD, colour, pH, EC, Ca 2+ , DIC, DOC), these lakes are divided into three groups: dystrophic (Lakes Orchowe and Płotycze), humoeutrophic (Lakes Brudzieniec and Pereszpa) and mesoeutrophic (Lakes Moszne and Długie). The occurrence of dystrophication, humoeutrophication or eutrophication processes is clearly reflected in the phytoplankton composition and its abundance, as well as its biomass. In both dystrophic and humoeutrophic lakes, flagellates dominated in the phytoplankton. Among them, the invasive species Gonyostomum semen was very abundant. Mesoeutrophic lakes were characterized by other phytoplankton composition, mainly by non-flagellate species (green algae).

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Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dystrophy or eutrophy: phytoplankton and physicochemical parameters in the functioning of humic lakes

Poniewozik

Wojciechowska

Solis

2011

Oceanological and Hydrobiological Studies

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“…variabile, Woronichinia naegeliana, Chroococcus limneticus and Botryococcus braunii. The first two species are recognized as species of slightly alkaline lakes with moderate and high nutrient content (Rosen, 1981;Coesel, 1993;Reynolds and Petersen, 2000;Wilk-Woźniak and Mazurkiewicz-Boroń, 2003), whereas Chroococcus limneticus and Botryococcus braunii are usually found in mesotrophic water bodies, including humic ones (Naselli-Flores and Barone, 2000; Holopainen et al, 2003). Lower values of pH, TP and EC, and the increased water color (after damming) were correlated with the increased biomass of some flagellates, including Dinobryon divergens, Ceratium hirundinella and, to a lesser extent, Cryptomonas sp.…”

Section: Discussionmentioning

confidence: 99%

Long-term changes in phytoplankton in a humic lake in response to the water level rising: the effects of beaver engineering on a freshwater ecosystem

Pęczuła

Szczurowska

2013

Knowl. Managt. Aquatic Ecosyst.

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Key-words:water level change, humic lake, phytoplankton, beaver, Gonyostomum semen Although water level changes are supposed to be a key factor affecting the functioning of lake ecosystems, knowledge on this topic is scarce, particularly for humic lakes. This paper presents the results of 18 years' research on a small humic lake exposed to hydrological change (rising of the water level), which was induced by spontaneous colonization of the lake by the European beaver (Castor fiber L.). We put forward a hypothesis that this change will be reflected in the quantity and structure of summer phytoplankton due to expected changes in the water chemistry. We noted a statistically significant decrease in total phosphorus and calcium concentrations, electrolytic conductivity, and Secchi disc transparency, and an increase in water color. The phytoplankton structure changed, with cyanoprocaryota and greens decreasing and flagellates increasing. The alteration was observed in a lake which had previously been drained by ditches, so beaver damming appeared to cause the return of the lake to its original endorheic conditions as well as to a water chemistry and phytoplankton structure more typical of undisturbed humic lakes. RÉSUMÉLes changements à long terme dans le phytoplancton d'un lac humique en réponse à la montée des eaux : les effets de l'ingénierie des castors sur l'écosystème d'eau douce Mots-clés : Gonyostomum semenBien que les changements de niveau d'eau soient censés être un facteur clé qui influe sur le fonctionnement des écosystèmes lacustres, les connaissances sur ce sujet sont rares, en particulier pour les lacs humiques. L'article présente les résul-tats d'une recherche de 18 ans sur un petit lac humique exposé au changement hydrologique (montée du niveau de l'eau), qui a été induit par la colonisation spontanée du lac par le castor d'Europe (Castor fiber L.). Nous avons proposé comme hypothèse que ce changement serait reflété dans la quantité et la structure du phytoplancton d'été en raison des changements attendus dans la chimie de l'eau. Nous avons noté une diminution statistiquement significative dans les concentrations en phosphore total et en calcium, la conductivité électrolytique, la transparence mesurée au disque de Secchi et l'augmentation de la couleur de l'eau. La structure du phytoplancton a changé avec une diminution des cyanobactéries et des algues vertes et une augmentation des flagellés. La modification a été observée dans un lac qui avait été préalablement drainé par des fossés, ainsi les barrages de castors semblent provoquer le retour du lac aux conditions endoréiques originales de même que pour la chimie de l'eau et la structure du phytoplancton plus typiques des lacs humiques non perturbés.

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“…Trophic status, composition and succession of phytoplankton species in these lakes were recognized basically (Dokulil and Teubner 2000;Xie et al 2003;Li et al 2006). Small shallow forest lakes in Finland were examined to show seasonal succession, vertical distribution and variation of phytoplankton communities (Salonen et al 1984;Holopainen et al 2003). In contrast to large shallow lakes, a few attentions were paid to the eutrophication and the phytoplankton succession in urban small water bodies .…”

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confidence: 99%

Seasonal Dynamics of Phytoplankton in Relation to Key Aquatic Habitat Factors in a Polluted Urban Small Water Body in Tianjin, China

Sun

Jin²,

Zhang

et al. 2009

Bull Environ Contam Toxicol

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To evaluate the seasonal dynamics of phytoplankton and its relationships with aquatic habitat factors in polluted urban landscape lakes, annual investigations have been carried out in the West zone of Xinkai Lake. The results showed that the lake belongs to the eutrophic-supertrophic type in terms of key habitat factors measurement. The seasonal succession of phytoplankton community was determined. The dominant cyanobacterial species Oscillatoria tenuis Ag. bloomed in autumn, although the other species with higher degrees of dominance never bloomed in the year investigated. Significant correlations between some habitat factors and phytoplankton biomass were observed.

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Seasonal succession, vertical distribution and long term variation of phytoplankton communities in two shallow forest lakes in eastern Finland

Cited by 19 publications

References 11 publications

Dystrophy or eutrophy: phytoplankton and physicochemical parameters in the functioning of humic lakes

Dystrophy or eutrophy: phytoplankton and physicochemical parameters in the functioning of humic lakes

Long-term changes in phytoplankton in a humic lake in response to the water level rising: the effects of beaver engineering on a freshwater ecosystem

Seasonal Dynamics of Phytoplankton in Relation to Key Aquatic Habitat Factors in a Polluted Urban Small Water Body in Tianjin, China

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