International Journal of Limnology

International Journal of Limnology publishes papers on the ecology of freshwater systems, ranging from studies of aquatic organisms, physical and chemical works which relate to the biological environment, to ecological applications and frameworks for water management directives.

Journal founded by University Paul Sabatier, Toulouse in 1964.

In 2022 Annales de Limnologie - International Journal of Limnology becomes International Journal of Limnology.
  • Microbial community diversity and eco-genomics functions across sediment regimen of a saline lake

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    This current study applied metagenomics study approach to determining the microbial community diversity and functions across sediment regimen (clay [NT], sandstone [FS] and salt-bearing [SY]) of the East Taijinar Salt Lake, China. The result indicated that:

    i. members of Actinobacterium did not exhibit variability across the sediment types while members of Firmicutes and Proteobacteria showed some variabilities, and had highest dominance in clay (NT) and sandstone (FS) sediment type as compared to the salt-bearing (SY) sediment type. Based on UniFrac, STAMP analyses there was significant differences (P < 0.05), with the weighted-UniFrac approach indicating the highest abundance under the clay sediment type.

    ii. According to NMDS analysis, there was closer similarity in microbial composition between the clays sediment type (NT) and sandstone (FS).

    iii. Furthermore, through the cladogram, it was visualized that there was very low representation of bacterial species from the salt-bearing (SY) sediment type as compared to other sediment types.

    iv. More COG and KEGG pathways were dominant under the clays (NT) sandstone (FS) sediment types as opposed to the salt-based (SY) sediment type.

    Based on this result, in-depth studies on spatial and temporal variability in microbial community diversity and eco-genomics functions across the sediments of the East Taijinar Salt Lake is recommended.

    Int. J. Lim., 58 (2022) 10
  • Class III peroxidase and polyphenol oxidase activities in aquatic macrophytes during vegetative period in Bardača a wetland

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    The paper examined changes in the activity of Class III Peroxidase (POX) and polyphenol oxidase (PPO) in Phragmites australis (Cav.) Trin. Ex Steud. Utricularia vulgaris L. and Salvinia natans (L.) from two sites on Bardača wetland during one vegetation season (June-September). The results showed differences in POX and PPO activities between emergent, submersed and floating plants, depending on both the sampling period and the site. The obtained differences in enzyme activities are probably a reflection of the influence of different types of abiotic stress on plants in their natural habitat, but also specific adaptive characteristics of each of the investigated species. The obtained results indicate that the activities of POX and PPO in examined water macrophytes can be used as bioindicators of environmental conditions.

    Int. J. Lim., 58 (2022) 8