Phytoplankton Community and Chlorophyll a as Trophic State Indices of Lake Skadar (Montenegro, Balkan) (7 pp)

Rakocevic-Nedovic, Jelena; Hollert, Henner

doi:10.1065/espr2005.04.241

Cited by 58 publications

(23 citation statements)

References 13 publications

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“…Using two or more variables in the Carlson TSI can produce differences in its values, as observed for Lake Skadar (Rakocevic‐Nedovic & Hollert 2005) and Foz de Almargem coastal lagoon (Coelho et al . 2007).…”

Section: Discussionmentioning

confidence: 99%

Limnological characteristics and trophic state of Paso de las Piedras Reservoir: An inland reservoir in Argentina

2009

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The current trophic status of Paso de las Piedras Reservoir was evaluated by analysing different physicochemical, biological and environmental variables, in relation to its water quality, and application of two different classification criteria. Water quality sampling was conducted at four sampling sites from June 2004 to June 2005. During this study, 183 phytoplankton taxa were identified. The phytoplankton abundance exhibited a maximum of 368.037 × 10 3 cells.mL -1 in February 2005, and at least 1.133 × 10 3 cells.mL -1 in October 2004. An almost exclusive dominance of Cyanobacteria was observed between December 2004 and May 2005, the product of a large relative abundance of Anabaena circinalis and Microcystis natans which, together with other companions, were the reason for an algal bloom characterized by an average density of 133.05 × 10 3 cells.mL -1 , and an average chlorophyll concentration of 28.7 mg.m -3 . These study results indicate that the seasonal variations of physical, chemical and biological parameters in the waters of this reservoir were essentially a consequence of environmental and hydrological conditions in the dam area. In contrast, the spatial variations inside the lake were the result of the characteristics of the water inflow provided by its two main tributaries. The N:P ratio suggests neither nutrient is a limiting factor for maximum algal biomass in the lake, indicating that variations in the phytoplankton community structure, and development of phytoplankton blooms, would be more constrained by environmental and hydrological conditions than nutrient competition. The high concentration of measured nutrients could be attributed to the concurrence of various non-point sources. The phytoplankton species richness was high, exhibiting values even higher than those mentioned in previous studies. Considering the two trophic classification systems, and based on total phosphorus data, the reservoir is classified within the hypertrophic category. In contrast, considering only the chlorophyll and turbidity data, the lake would be classified within the eutrophic category.Paso de las Piedras Reser voir, phytoplankton community, trophic state, water quality.

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Section: Discussionmentioning

confidence: 99%

Limnological characteristics and trophic state of Paso de las Piedras Reservoir: An inland reservoir in Argentina

2009

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“…A similar result was obtained by (19 and 20) during their studies on springs in Harier sub district. On the other hand, low phytoplankton densities and chlorophyll a concentration in site 1 may be one of these reasons which cause low pH value at this site in comparison to other sites (21).…”

Section: Methodsmentioning

confidence: 82%

A Limnological Assessment of Kasnazan Impoundment Water- Erbil, Iraq

Al-Barazingy¹

2010

J.Edu.Sci.

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The assessment of physicochemical and biological conditions at five sites in Kasnazan impoundment water were conducted at monthly interval during August 2004 to February 2005, in order to know the degree of deterioration of water quality caused by anthropogenic activities in the area. Depending on statistical analysis water quality changes showed significant differences (P<0.05) in conductivity, pH, PO 4 , SiO 2 and phytoplankton density between site 1 and other studied sites. In addition to a positive relationship between chlorophyll a concentration and phytoplankton density was observed.Generally, principal component analysis (PCA) showed that water quality was impacted by fertilizer and detergents.

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“…This becomes even more important in light of ongoing eutrophication, pollution and sand and gravel exploration activities in the lake and its basin. Recently, research of the phytoplankton community and chlorophyllbased trophic state indices (Rakočević-Nedović and Hollert 2005) show that the lake is on a betamesosaprobic level of saprobity, which means moderately polluted with organic compounds. …”

Section: Biodiversity and Conservationmentioning

confidence: 99%

A new freshwater snail genus (Hydrobiidae, Gastropoda) from Montenegro, with a discussion on gastropod diversity and endemism in Skadar Lake

Pešić¹,

Glöer²

2013

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Karucia sublacustrina a new species of freshwater snails (Hydrobiidae, Gastropoda) is described based on material collected from Skadar Lake (Montenegro, Albania). The new species belongs to monotypic genus Karucia gen. n. The shell morphology and body shape of the new genus resembles Radomaniola Szarowska, 2006 and Grossuana Radoman, 1973, from which it differs in the larger shells with relatively slim and a slightly, but clearly shouldered body whorl. The number of gastropods from Skadar Lake basin tallies now 50 species. The adjusted rate of gastropod endemicity for Skadar Lake basin is estimated to be 38%. By compiling faunal and taxonomic data we also aim to provide information of relevance as to conservation efforts.

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Phytoplankton Community and Chlorophyll a as Trophic State Indices of Lake Skadar (Montenegro, Balkan) (7 pp)

Cited by 58 publications

References 13 publications

Limnological characteristics and trophic state of Paso de las Piedras Reservoir: An inland reservoir in Argentina

Limnological characteristics and trophic state of Paso de las Piedras Reservoir: An inland reservoir in Argentina

A Limnological Assessment of Kasnazan Impoundment Water- Erbil, Iraq

A new freshwater snail genus (Hydrobiidae, Gastropoda) from Montenegro, with a discussion on gastropod diversity and endemism in Skadar Lake

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