Picoplankton and other size groups of phytoplankton in various shallow lakes

Szeląg-Wasielewska, Elżbieta

doi:10.1007/978-94-011-5648-6_9

Cited by 15 publications

(19 citation statements)

References 21 publications

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“…6). The abundance (>10 6 cells.mL x1 ) and contribution (up to 80%) of the picoplankton to the total phytoplankton biomass was very high in the open water and also in the inner ponds as compared to shallow, mesotrophic lakes (Vo¨ro¨s, 1989;Jasser, 1997;Szelag-Wasielewska, 1997, 2003. Similarly high picophytoplankton abundances were described (more than 10 6 cells.mL x1 ) in freshwater and brackish systems (lagoons and saltmarshes) spanning a wide range of trophic states (Stockner, 1991;Vo¨ro¨s et al, 1991;Carrick and Schleske, 1997;Hepperle and Krienitz, 2001;Del Negro et al, 2007;Felfo¨ldi et al, 2009;Somogyi et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

“…Similarly high picophytoplankton abundances were described (more than 10 6 cells.mL x1 ) in freshwater and brackish systems (lagoons and saltmarshes) spanning a wide range of trophic states (Stockner, 1991;Vo¨ro¨s et al, 1991;Carrick and Schleske, 1997;Hepperle and Krienitz, 2001;Del Negro et al, 2007;Felfo¨ldi et al, 2009;Somogyi et al, 2009). Although it is very hard to find a perfect model for picophytoplankton success in aquatic systems (Callieri, 2008), a widely accepted trend is the increase of the picophytoplankton abundance and the decrease of their contribution (to the total phytoplankton) with the increasing trophic state (Szelag-Wasielewska, 1997;Vo¨ro¨s et al, 1998;Bell and Kalff, 2001;Callieri, 2008). According to this, oligotrophic shallow lakes has been supposed to have moderate (y10 3 -10 5 cells.mL x1 ) picophytoplankton abundance with high contribution, while eutrophic systems has been supposed to have higher abundance (y 10 5 -10 6 cells.mL x1 ) but lower contribution (Vo¨ro¨s et al, 1998;Callieri, 2008).…”

Section: Discussionmentioning

confidence: 99%

“…In shallow mesotrophic lakes the abundance of the picoplankton ranges usually from 10 4 to 10 5 cells.mL x1 (Jasser, 1997;Szelag-Wasielewska, 2003;Mo´zes et al, 2006); however studies on Lake Balaton (Hungary), Lake Fertő (Hungary/Austria) and Lake Sekacz (Poland) describe one magnitude higher values (Vo¨ro¨s, 1989;Padisa´k and Dokulil, 1994;Szelag-Wasielewska, 1997). The contribution of the picoplankton to the total phytoplankton biomass in shallow mesotrophic lakes is usually between 1 and 17% (Vo¨ro¨s, 1989;Jasser, 1997;Szelag-Wasielewska, 1997;Szelag-Wasielewska, 2003).…”

Section: Introductionmentioning

confidence: 99%

“…The contribution of the picoplankton to the total phytoplankton biomass in shallow mesotrophic lakes is usually between 1 and 17% (Vo¨ro¨s, 1989;Jasser, 1997;Szelag-Wasielewska, 1997;Szelag-Wasielewska, 2003). On the other hand, in the open water of Lake Fertő , the picoplankton contributed 75% of the total phytoplankton biomass in April 1992 (Padisa´k and Dokulil, 1994).…”

Section: Introductionmentioning

confidence: 99%

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Periodic picophytoplankton predominance in a large, shallow alkaline lake (Lake Fertő, Neusiedlersee)

Somogyi

Felföldi

Dinka

et al. 2010

Ann. Limnol. - Int. J. Lim.

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-The biomass and composition of the phytoplankton was studied at seven sampling stations located at different water bodies (open water, inner pond and canal) of a large, shallow turbid lake (Lake Fertő , Neusiedlersee). The open water was characterized by picocyanobacteria and meroplanktonic diatoms, the artificial canal by epiphytic diatoms, cryptophytes and chlorophytes. The inner ponds, based on the phytoplankton composition, were positioned between these water bodies. High picoplankton abundance (>10 6 cells.mL x1 ) and predominance (up to 80% contribution to the total phytoplankton biomass) were detected in the open water and the inner ponds, which was hypothesized to be the result of the turbid environment by the suppression of the top down control and by light-limitation. Information on the diversity of the picoplankton in the open water of the lake has been presented first time in this study. Based on molecular analysis (16S rRNA gene and cpcBA-IGS region) the dominant group of picocyanobacteria belonged to the Cyanobium gracile cluster (group A) of the picophytoplankton clade in April. Members of two other picocyanobacterial groups (group B and C) were also detected.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Periodic picophytoplankton predominance in a large, shallow alkaline lake (Lake Fertő, Neusiedlersee)

Somogyi

Felföldi

Dinka

et al. 2010

Ann. Limnol. - Int. J. Lim.

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“…This species belongs to the Chlorococcales and is characteristic of lakes with poor nutrient content, where, due to the surface to volume ratio, larger phytoplankton are unable to compete as effectively for food resources with smaller phytoplankton and bacteria (Jones 1992). Thanks to their small size they are better adapted to assimilate CO 2 and nutrients, and also to effectively assimilate the light which stimulates their growth (Szeląg-Wasielewska 1997). Chlorococcales reveal a tendency towards heterotrophy, using dissolved organic compounds, which helps them to live in humic lakes with high concentrations of organic substances.…”

Section: Discussionmentioning

confidence: 99%

Seasonal variations of dominant phytoplankton in humic forest lakes

Joniak

2007

Oceanological and Hydrobiological Studies

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This work presents the community composition, abundance and seasonal dominance of phytoplankton taxa in three hydrochemically different, mid-forest humic lakes. The largest number of taxa was observed in the oligohumic lake (76), with smaller numbers seen in the mesohumic (42) and polyhumic lakes (37), which were characterized by higher contents of dissolved humic substances carbon (DHSC). Along an increasing gradient of DHSC in a pool of dissolved organic carbon (DOC) the autotrophic algae were seen to disappear, being replaced by taxa with features of facultative heterotrophs and flagellated algae that are able to move in the water column.

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Autotrophic and Heterotrophic Picoplankton in Wetlands: Differences with Lake Patterns

Rodrigo

Rojo

Álvarez‐Cobelas³

2003

International Review of Hydrobiology

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This study describes the occurrence, importance and seasonal patterns of picoplankton in two wetlands (TDNP and La Safor), and compares them to a system of fifteen interconnected lakes (Ruidera). In TDNP we performed a six-year monthly study in three sites of the wetland. Bacterial abundance increased throughout time and the autotrophic picoplankton (APP) range was wide (up to 33 × 10 6 cells/ml). The annual averaged APP contribution to total picoplankton and phytoplankton biovolumes was 0.5-22% and 0.03-6% respectively. There were large differences among sites in terms of APP absolute and relative abundance and seasonal patterns. In La Safor, the APP relative contribution to picoplankton and phytoplankton biovolumes was 0-25% and 0-40%, respectively, while in the Ruidera lakes was 0-47% and 0-5%, respectively. In the three systems there was a significant correlation between bacterial abundance and chlorophyll a but the slopes of the linear regressions were different. No significant relationships were found of APP abundance and trophic status in the wetlands, but were noted in the lake system. There was no clear relationship of APP contribution to total phytoplankton biomass to the trophic gradient in wetlands. In the lakes, the higher contribution of APP was found in those with higher trophic levels.

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Picoplankton and other size groups of phytoplankton in various shallow lakes

Cited by 15 publications

References 21 publications

Periodic picophytoplankton predominance in a large, shallow alkaline lake (Lake Fertő, Neusiedlersee)

Periodic picophytoplankton predominance in a large, shallow alkaline lake (Lake Fertő, Neusiedlersee)

Seasonal variations of dominant phytoplankton in humic forest lakes

Autotrophic and Heterotrophic Picoplankton in Wetlands: Differences with Lake Patterns

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