Considering the "everything is everywhere" (Baas Becking, 1934) hypothesis, microorganisms should be everywhere; however, it also follows that "…but, the environment selects". It is known that the zooplankton composition is affected by environmental parameters and biotic interactions (Wetzel, 2001), and for this reason

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Metalloids pose major threats to wetlands. It is of great importance to investigate the sediments where metal(loid)s accumulates the most in wetlands. This study revealed the current metal(loid) status of the Mavi Dam Lake, which is one of the important wetlands for Ankara, established the accumulation relations between metal(loid)s separately, and seek an answer to the question of whether the current metal(loid)s status poses a risk of public health. The amounts of 13 metal(loid)s were determined. Sediment quality guidelines were calculated to understand the ecological risk of metal(loid)s in the sediment and the results were compared with limit values. It was determined that Ni constitutes 51.28% of the total toxic effects of metals detected in the sediment. Ni and Cr revealed a strong correlation between cluster and correlation analyses and were involved in the same factor in the principal component analysis. Additionally, it was determined that As, Cd, Co, Cr, and Ni may pose carcinogenic risks in terms of public health by contact with the lake or ingestion. In conclusion, it was revealed that the lake being studied should be regularly monitored for all metal(loid)s, especially Ni, and Cr.

Phylum Tardigrada, which has been quite a little studied both around the world and Turkey, belongs to members of a metazoan. In this study eight moss and lichen samples were collected and investigated from a variety of elevations of the Verçenik Mountain in Rize (Turkey). In total 62 specimens, 11 exivium and 10 eggs of tardigrades were found. Five species were identified, and they belong to genera: Acanthechiniscus, Pseudechiniscus, Macrobiotus, Paramacrobiotus and, Ramazzottius. Three of them are new records for Turkish fauna i.e.

In this study carried out on Sarıncof Lake on 13 July 2021, 27 species from Rotifera, 6 species from Cladocera, and 3 species from Copepoda, belonging to zooplankton groups were identified in a total of 36 species. Among the identified species, Rotifers were the dominant group with a rate of 51 %. This was followed by Copepoda 28.3 % and Cladocera 20.7 %, respectively. In addition, Ostracoda, Anostraca, Tardigrada, and Nematoda groups were also found in the samples taken from the lake. The identified species are the first record for Sarıncof Lake, which is the subject of the study.