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International Journal of Limnology

Volume 59 (2023) (in progress)

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Special Issue - Advances in freshwater ecology in Sub-Saharan Africa

Open Access

Impact of altitude on spring macroinvertebrates and water quality in South West region of Cameroon 10

We evaluated the impact of altitude on the biodiversity and water quality of 13 springs located from 82 to 1,189m a.s.l. on Mount Cameroon. Despite lower temperature and more oxygen at higher altitudes, diversity, including EPT did not increase. Therefore, African fauna reacts similarly to the faunas of other areas of the world. African species appear to be well adapted to warm and poorly oxygenated water compared to species from other parts of the world.


Use of different indices to assess the ecological status of lake systems in the eastern mediterranean river basin 9

This study was estimated the correlations between various physicochemical parameters, phytoplankton species, different indices, and to evaluate the ecological status of the lentic systems in the Eastern Mediterranean River basin in Turkey.

Open Access

Which barcode to decipher freshwater microalgal assemblages? Tests on mock communities 8

Microalgae taxa can be identified with short DNA barcodes. Eight primer pairs for 16S and five for 23S were tested in silico and with mock communities including cyanobacteria and eukaryotic microalgae. We conclude that the 23S primer pair ECLA23S_F1/ECLA23S_R1 was the best candidate to decipher freshwater phytoplankton communities.


The Chironomidae (Diptera) diversity in the Balkan Peninsula spring systems and other small water bodies 6

There are many types of small waters in the Balkans. They are habitats for Chironomidae. Mountain rheocrenes are inhabited by cold-adapted midges. The fauna of springs in the river valleys is diverse. Midges living in the Skodra L.’ spring system prefer higher water temperatures and hard substrates.


Effects of ABS microplastics on microalgae Chlorella vulgaris and Raphidocelis subcapitata 5

Chlorella vulgaris and Raphidocelis subcapitata, were exposed to different concentrations of ABS microplastics during 6 days. We observed physiological changes in cell growth and chlorophyll content in response to the concentration and duration of exposure.


Allelopathic effects of Egeria densa on the growth and morphology of Chlorella vulgaris 4

Effects of E. densa on the the growth and morphology of C. vulgaris with gradient algal density were investigated. The study might provide further insights and knowledge into the interspecific interaction in freshwater ecosystems.


Zooplankton egg bank: characterization and effect of biotic factors on hatching 3

This study provides information on the structure and composition of the egg bank of a shallow lake and the effect of biotic factors on hatching rates. The results show the dominance of rotifers over cladocerans and copepods and a positive effect of certain biotic factors on hatching.


Geothermal water as a nutrient medium source on the biomass productivity and biochemical composition of Spirulina (Arthrospira platensis) under the greenhouse conditions 2

In this study, the geothermal water (GW) was replaced with 25% (GW25), 50% (GW50), 75% (GW75) and 100% (GW100) of the volume of the Schlösser culture medium (SM). The biomass concentration was determined to the higher in the GW50 (1.324 g/L) than in other groups (GW25, GW75, GW100 and SM). The highest protein content and phycocyanin purity ratio were found in the GW75 medium containing 116.6 times higher phosphate than the SM. The chlorophyll, phycocyanin, protein, dry biomass, mineral and amino acid in groups prepared by mixing Schlösser medium and geothermal water mix (GW25, GW50 and GW75) were better than geothermal water (GW100) and the SM. It is concluded that using partial geothermal water in Spirulina production is efficient considering the parameters, i.e., biomass yield, protein, mineral and chlorophyll contents, and also return of investment.


Ostracoda (Crustacea) and limnoecological characteristics of Lake Karamurat (Bolu, Turkey): Testing pseudorichness hypothesis 1

Thirteen ostracods reported for the first time from Lake Karamurat exhibited clear habitat preferences and seasonal occurrences. CCA results explained about 91% of correlation between species and environmental variables. The Pseudorichness Ratio of the lake was very low (Pr=0.25), indicating dominancy of cosmopolitan species over noncosmopolitans.