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.

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Characterization of testicular histology and spermatogenesis in the Levantine frog, Pelophylax bedriagae (Amphibia: Anura: Ranidae)

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Amphibians are major members of aquatic and terrestrial ecosystems. They serve as both predator and prey in both ecosystems. Therefore, they provide the transfer of energy between these systems. However, there are few studies on the gametogenesis of amphibian. Therefore, histological characteristics of Pelophylax bedriagae testes were studied.

Ann. Limnol. - Int. J. Lim., 56 (2020) 19
Open Access

Movement patterns of juvenile and adult noble crayfish (Astacus astacus) in a small stream, determined by radiotelemetry

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This first radiotelemetric study comparing summer movement patterns of juvenile and adult noble crayfish (Astacusastacus) found substantial differences between the two groups during the 24-h cycle. In addition, juveniles moved over significantly longer distances, predominantly upstream.

Ann. Limnol. - Int. J. Lim., 55 (2019) 19
Special issue - Biology and Management of Coregonid Fishes - 2023
Open Access

Spawning behaviour of lake whitefish in Lake Huron revealed by fine-scale acoustic telemetry and Indigenous ecological knowledge

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In our study of the spawning behaviour of lake whitefish, we observed fish using a variety of habitat types during the spawning season, including a rocky spawning shoal, sandy substrates, and steeper slopes. Both sexes moved shallower at night and deeper during the day, with males moving more at night and females more during the day. This study could help inform stewardship efforts aimed at lake whitefish spawning habitat restoration and protection.

Int. J. Lim., 60 (2024) 8
Special issue - Biology and Management of Coregonid Fishes - 2023
Open Access

How diverse is the toolbox? A review of management actions to conserve or restore coregonines

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Our paper reviews the restoration and conservation strategies applied towards coregonines (e.g., whitefishes, ciscoes) across Europe, Asia, and North America. The highlighted strategies included 1) stocking of hatchery-reared fish, 2) controlling invasive species, 3) translocating fish, 4) restoring habitat, and 5) eliminating harvest or creating protected areas.

Int. J. Lim., 60 (2024) 5
Recent articles (published in the past 5 years)
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Land use change causes environmental homogeneity and low beta-diversity in Heteroptera of streams

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Environmental change affected the beta-diversity of the Heteroptera and of Nepomorpha, also negatively affecting both Gerromorpha beta-diversity and richness. These results show that Gerromorpha is more sensitive to physical changes in streams caused by the loss of environmental integrity and deforestation.

Ann. Limnol. - Int. J. Lim., 56 (2020) 9
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Occurrence of potentially toxic cyanobacteria Microcystis aeruginosa in aquatic ecosystems of central Kerala (south India)

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The occurrence of M. aeruginosa bloom in two freshwater ponds along central Kerala has been addressed along with the variations in the hydrobiological characteristics of the ecosystem during bloom and non-bloom conditions of the species. Histological studies highlight hepatotoxicity of M. aeruginosa signifying regular monitoring of bloom events in these ecosystems.

Ann. Limnol. - Int. J. Lim., 56 (2020) 18
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Effects of salinity on species composition of zooplankton on Hau River, Mekong Delta, Vietnam

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Zooplankton was found to change proportionally with salinity changes in the Mekong Delta (MD) estuarine areas. Rotifera and Cladocera were inversely proportional while Protozoa and Copepoda were positively proportional to salinity. This first time ever findings can be applied to predict change in biological productivity of the estuarine ecosystem in the MD.

Ann. Limnol. - Int. J. Lim., 56 (2020) 20
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Longitudinal distribution of macroinvertebrate in a very wet North African Basin: Oued Melloulou (Morocco)

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The Melloulou River presented 161 invertebrate taxa, most new for northeast Morocco. Multivariate analyses showed an invertebrate distribution governed by altitude, slope and current velocity in a highly flow dynamic. Three assemblages and a great number of ubiquitous taxa were also found. These findings are of crucial concern for managing actions.

Ann. Limnol. - Int. J. Lim., 56 (2020) 17
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Ecological status estimation of eight creeks in the Lake Sapanca Basin (Sakarya, Turkey) using diatom indices

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It is important to determine the water quality of the creeks in the Lake Sapanca basin since it is used for drinking water supply. For this purpose, environmental parameters and diatom assemblages as biological quality components were investigated to determine the ecological status of eight creeks with monthly intervals between March 2015 and February 2016. A total of 132 diatom taxa were identified in eight creeks of the Lake Sapanca basin during the studied period. 19 taxa increased their relative abundance higher than 30% in at least one sample and showed a different seasonal pattern. Environmental parameters [nitrate-nitrogen, orthophosphate, total phosphorus (TP), specific conductance, temperature, pH, and dissolved oxygen] were effective on the distribution of diatom assemblages. The ecological status of the creeks was characterized by using four different diatom indices (TIT, EPI-D, IPS, and TDI), however, only Trophic Index Turkey (TIT) represented significant positive correlations with log (TP) gradient. Both environmental parameters, the relative abundance of indicator species, and TIT index results stated that 1st, 2nd, 3rd, 5th, 7th, and 8th stations had moderate, while 4th and 6th stations had good water quality. The good correlation of TIT index with log (TP), and its compatibility with the presence of indicator species at different stations indicates that this index could be used in the Lake Sapanca basin, and Sakarya basin where the lake basin is located.

Ann. Limnol. - Int. J. Lim., 57 (2021) 14