Epiphyton Biomass is Related to Lake Trophic Status, Depth, and Macrophyte Architecture

Lalonde, Sophie; Downing, John A.

doi:10.1139/f91-268

Cited by 74 publications

(51 citation statements)

References 32 publications

(53 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Biofilms (in our case mainly littoral periphyton and epilithic biofilms) have been rarely examined for fungi, and only a few studies on stream ecosystems have investigated the fungal occurrence (measured as ergosterol) on substrates other than leaves (Tank and Dodds 2003;Artigas et al 2004;Aguilera et al 2007;Frossard et al 2012). In lakes and streams, periphyton can contribute substantially to the primary production of the whole ecosystem (Lalonde et al 1991;Vadeboncoeur et al 2007 and references therein; Vis et al 2007) and can be the primary food source for macrozoobenthic grazers (Cattaneo and Mousseau 1995). Our findings suggest that it is not only a rich source of widely divergent fungal lineages, but that fungi might play an important ecological role in periphyton, turning over a significant amount of algal carbon and thus total carbon in the lake.…”

Section: Biofilm (Periphyton)mentioning

confidence: 99%

High habitat-specificity in fungal communities in oligo-mesotrophic, temperate Lake Stechlin (North-East Germany)

Wurzbacher¹,

Warthmann²,

Bourne³

et al. 2016

View full text Add to dashboard Cite

Freshwater fungi are a poorly studied ecological group that includes a high taxonomic diversity. Most studies on aquatic fungal diversity have focused on single habitats, thus the linkage between habitat heterogeneity and fungal diversity remains largely unexplored. We took 216 samples from 54 locations representing eight different habitats in the meso-oligotrophic, temperate Lake Stechlin in North-East Germany. These included the pelagic and littoral water column, sediments, and biotic substrates. We performed high throughput sequencing using the Roche 454 platform, employing a universal eukaryotic marker region within the large ribosomal subunit (LSU) to compare fungal diversity, community structure, and species turnover among habitats. Our analysis recovered 1027 fungal OTUs (97% sequence similarity). Richness estimates were highest in the sediment, biofilms, and benthic samples (189-231 OTUs), intermediate in water samples (42-85 OTUs), and lowest in plankton samples (8 OTUs). NMDS grouped the eight studied habitats into six clusters, indicating that community composition was strongly influenced RESEARCH ARTICLEChristian Wurzbacher et al. / MycoKeys 16: 17-44 (2016) 18 by turnover among habitats. Fungal communities exhibited changes at the phylum and order levels along three different substrate categories from littoral to pelagic habitats. The large majority of OTUs (> 75%) could not be classified below the order level due to the lack of aquatic fungal entries in public sequence databases. Our study provides a first estimate of lake-wide fungal diversity and highlights the important contribution of habitat heterogeneity to overall diversity and community composition. Habitat diversity should be considered in any sampling strategy aiming to assess the fungal diversity of a water body.

show abstract

Section: Biofilm (Periphyton)mentioning

confidence: 99%

High habitat-specificity in fungal communities in oligo-mesotrophic, temperate Lake Stechlin (North-East Germany)

Wurzbacher¹,

Warthmann²,

Bourne³

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Biotic and abiotic light attenuation strongly influences the availability of light in the lower regions of the water column, and thus has a substantial impact on all autotrophic organisms and their community structure (Bécares et al 2008;Jones and Sayer 2003;Liboriussen and Jeppesen 2009). Periphyton, due to its high epiphytic algae content, is also influenced by changes in light attenuation (Jones et al 2002;Lalonde and Downing 1991;Müller 2006), while negatively 3 impacting both phytoplankton (Trochine et al 2011) and the plant substrate (Bécares et al 2008;Jones and Sayer 2003).…”

Section: Introductionmentioning

confidence: 99%

The effect of periphyton on the light environment and production of Potamogeton perfoliatus L. in the mesotrophic basin of Lake Balaton

Tóth

2013

Aquat Sci

View full text Add to dashboard Cite

Light within the littoral zone affects the productivity and interaction between periphyton and its macrophyte substrate. The effect of periphyton on macrophyte photosynthesis, seasonal variation and vertical distribution of periphyton on artificial substrates (plastic strips), and the effect of periphyton on the light environment was studied in Lake Balaton.Data showed that an average of 4.1±0.4 mg (dry weight) cm -2 of periphyton had accumulated on the plastic strips after 8.8±0.4 days. This biomass corresponded to 294±30 μg m -2 chl-a of epiphytic algae and blocked 92.3±0.8 % of the depth specific radiation.Seasonal variation and specific vertical distribution of periphyton were observed. The most active time of periphyton accumulation corresponded to spring up until mid-June. Later in the year, the amount of periphyton significantly decreased. The optimal conditions for periphyton accumulation were at 30-40 cm depth.Most of the light reaching the adaxial leaf surface was attenuated by periphyton, decreasing the production of Potamogeton perfoliatus by 60-80%. This increased the importance of backscattered light that corresponded to 10-15% of the macrophyte production.A smaller part of the periphyton consisted of precipitated inorganic material, while epiphytic algae, making up the majority of the periphyton, were connected to both benthic (dominantly 2 benthic penales) and pelagic (very close seasonal dynamics of pelagic and epiphytic biomass) algae. Periphyton affects macrophyte production especially in spring and in the upper water layers even in a mesotrophic water body. This increases the importance of the light absorbed through the abaxial side of the leaf and confirm the role of periphyton in transition from clear to turbid water states.

show abstract

“…O complexo perifíton-macrófita tem grande importância nos ecossistemas aquáticos, pois sintetiza grande quantidade de matéria orgânica (Wetzel 1990), altera a disponibilidade de nutrientes do meio (Burkholder & Wetzel 1990) e, ainda, pode funcionar como um sistema natural de filtração (Kiss et al 2003). Em nível ecossistêmico, a influência das macrófitas aquáticas sobre as alterações da qualidade da água é grandemente acrescida pelo desenvolvimento do perifíton em suas partes submersas (Lalonde & Downing 1991;Kiss et al 2003). Desta forma, a investigação sobre o desenvolvimento da comunidade de algas perifíticas em macrófitas pode contribuir para o maior entendimento da relação perifíton-macrófita e, consequentemente, do papel deste complexo no ecossistema.…”

unclassified

Variação sazonal da estrutura da comunidade de algas perifíticas emPanicum repens em um reservatório raso

Casartelli

Ferragut

2015

Rodriguésia

View full text Add to dashboard Cite

Este estudo avaliou a estrutura da comunidade de algas perifíticas em Panicum repens em pontos pluriespecíficos de macrófitas em reservatório raso (Lago das Ninféias, São Paulo, Brasil). O objetivo foi avaliar as mudanças na biomassa, abundância e composição espécies, bem como identificar as variáveis ambientais mais relacionadas à variação dos atributos estruturais da comunidade. Pontos de amostragem com a presença de três e quatro espécies de macrófitas (n=3) foram selecionados aleatoriamente (04/2010, 06/2010, 11/2010, 02/2011 AbstractThis study evaluated the periphytic algal community structure on Panicum repens at macrophytes pluriespecifics sites in shallow reservoir (Ninféias Reservoir, São Paulo, Brazil). The aim was to evaluate changes in species composition and abundance, as well as identify the environmental factors most related to the variation of the periphyton structural attributes. Sampling sites with presence of three and four macrophytes species (n = 3) were randomly selected in seasons (04/2010, 06/2010, 11/2010, 02/2011). Climate and water variables, cover macrophyte and periphyton structural attributes were analyzed. Bacillariophyceae and Chrysophyceae were the most abundant algal class and Frustulia crassinervia and Chromulina elegans were the most representative species. The highest biomass and algal density and the lowest autotrophic index were found in summer, showing the further development of the algal community. Our results showed that changes in the periphyton structure on P. repens were determined primarily by seasonality. We conclude that periphyton abundance, biomass and composition changed greatly between the seasons and the light and nutrients availability, particularly phosphorus, were the variables most associated with the community structural changes during the study period. Key words: biomass, periphyton, species composition, algal density, perifíton.Variação sazonal da estrutura da comunidade de algas perifíticas em Panicum repens em um reservatório raso Seasonal variation in the periphytic algal community structure on Panicum repens in a shallow reservoir

show abstract

Epiphyton Biomass is Related to Lake Trophic Status, Depth, and Macrophyte Architecture

Cited by 74 publications

References 32 publications

High habitat-specificity in fungal communities in oligo-mesotrophic, temperate Lake Stechlin (North-East Germany)

High habitat-specificity in fungal communities in oligo-mesotrophic, temperate Lake Stechlin (North-East Germany)

The effect of periphyton on the light environment and production of Potamogeton perfoliatus L. in the mesotrophic basin of Lake Balaton

Variação sazonal da estrutura da comunidade de algas perifíticas emPanicum repens em um reservatório raso

Contact Info

Product

Resources

About