A study was conducted to examine and analyze the
distribution and relationships of water elements and model water mite species
such as Acari and Hydrachnidia in two different lakes in Turkey. The two lakes - Eber and Karamık are located
in Afyonkarahisar province. Both lakes have a similar geomorphological
formation and the water depths in both are in the range of 1 to 3 meters.
Water mite fauna were first determined in both these
lakes. Eber Lake is a tectonic lake (formed by the movements in the earth's
crust creating basins) which is polluted due to the high amount of domestic
sewage coming via Akarçay stream. Various algae are found on the surface of
this lake. Karamik Lake is also a shallow lake that is found to be covered with
reeds and marsh areas.
In the study, water mites were
chosen as model species since they are considered as a significant biological
indicator organism in order to determine clean water source. Water samples containing the water mites were taken from two
parallel points of each lake at particular intervals. They were analyzed with
ICP ((ICP-OES Instrument Spectro Genesis Fee, Germany) equipment to determine
water characteristics and the amount of contained elements in both lakes.
Correlation analysis, (a statistical method to
determine the degree and direction of the relationship between different
variables) was carried out with the acquired data to study the relationship
between distribution of water mite species and water parameters. Numerous
correlation coefficients such as the Pearson correlation coefficient, Canonical
correlation coefficient, partial correlation coefficient were used to calculate
in various ways for different purposes.
The lake formations, geomorphologic characteristics,
ecosystems and climatic conditions of both the lakes were also studied. The
results of the analysis showed that Karamik Lake had 21 water mite species as
compared to 8 for Eber Lake. It should be noted that water mite species in
Karamik Lake were taken from various levels and depths whereas for Eber Lake,
they were mainly from areas close to the surface of water.
The study also revealed intense eutrophication and
pollution in Eber Lake due to excessive nitrogen and phosphate domestic waste
in the water. However, no significant eutrophication was observed in Karamik
Lake since there was no domestic and industrial waste discharged into it.
Correlation analysis for each of the parameters of
water revealed an insignificant relationship due to the negative influence of
heavy metals contained in the water elements on the abundance of water mite
species (−0234). Thus, it was deduced that if the amount of heavy metals in the
lake water increases, the number of water mite species will decrease.
The correlation values between distribution of water
mite species and other elements turned out to be positive and again
insignificant (0.256). From the results it could be concluded that the amount
of elements in lake waters is too insignificant to limit the habitats of the
creatures and their impact level is very low.
The study showed that heavy metals restricting the
lives of living creatures is quite low, thus indicating that there is no
negative impact on living creatures. From the results, it could be concluded
that change in the lake water composition was not a significant determining
factor in the number of species and diversities of water mites and the amount
of values contained in the water is not sufficient to have a negative impact on
Aşçı, F., Bahadır, M. and
Akkuş, G. (2015). Study on the Impact of Elements in Water on the Diversity of
Water Mites (Acari, Hydrachnidia) Species. Advances in Bioscience and
, 259-264. doi: 10.4236/abb.2015.64025.
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