Ecological and geographical characteristics of algal communities on gastropod shells of the river Uzh

Keywords: algal epibionts, saprobity, indicator species, ecological group, morphological group

Abstract

Freshwater molluscs serve as test objects in the ecological monitoring of the environment, because they are able to extract in indicator quantity from the environment and accumulate in their bodies radionuclides, various macro- and micronutrients, toxic substances of inorganic and organic origin, and so on. The gastropods are a taxonomically diverse, ecologically plastic and rather widespread group of aquatic organisms, whose role in the life of freshwater ecosystems is very important. Molluscs often have various interactions in biogeocenoses that determines their trophic net. As a rule, these interactions occur in the form of ectocommensalism, endocommensalism, supercrescence, predation or parasitism. The latter type of interaction is the subject of many studies, but the epibionts of gastropods and bivalves have practically not been studied and this research is an effort towards filling this gap. Species composition of algal epibionts identifies specific sensitivity to the effects of certain environmental factors and reflects the processes occurring in their ecosystem water bodies. This determines their efficient use for analyzing changes of water bodies as aquatic habitat, particularly in terms of complex anthropogenic pressure on aquatic ecosystems. The aim of the research was to determine the ecological characteristics of algal communities on gastropod shells: Lymnaea stagnalis, L. auricularia and Viviparus viviparus (the Uzh river, Korosten district, Zhytomyr region). Identified microalgae communities were grouped and studied according to such indices as: confinedness to the habitat (substrate), temperature, fluidity and water oxygenating, saprobiological characteristics according to the Pantle-Buck system in the modification of Sladecek and Watanabe, salinity according to Kolbe’s system, pH at Hustedt scale in the interpretation of M. M. Davydova and geographical limitations of the objects of study. Algal fouling on the shells L. stagnalis, L. auricularia and V. viviparous is formed by benthic and benthic-planktonic species. Algal epibionts of the studied communities are mainly confined to slow-flowing waters. The basis of a floristic list according to the temperature in all studied groups of gastropods is formed by indifferent species. According to geographical distribution of fouling algae, cosmopolitan species dominated. In relation to salinity according to Kolbe’s system, most species discovered were indifferent oligo-galob. Algal communities are reliable indicators of one of the important indices of watercourse hydrochemical conditions – pH of water. Analysis of algal epibionts on gastropod shells of the river Uzh, showed the dominance of alkaliphiles and indifferent species (from the number of identified microalgae). According to saprobiological characteristic of water quality of the river Uzh there was a predominance of o-saprobes. Analysis of indicator groups showed that the most numerous algal epibionts on shells were euresaprobe species. A detailed ecological and geographical characteristic of algae fouling on shells of the studied groups of molluscs allows one to predict the state of hydrocenoses, which is an important aspect of monitoring.Further research is required to model the influence of anthropogenic factors on the state of water bodies.

References

Barinova, S. (2013). Diversity, ecology and survivor of freshwater red algae in Israel. Natural Resources and Conservation, 1(2), 21–29.

Barinova, S. S., Klochenko, P. D., & Belous, Y. P. (2015). Algae as indicators of the ecological state of water bodies: Methods and prospects. Hydrobiological Journal, 51(6), 3–21.

Barinova, S. S., Medvedeva, L. A., & Anisimova, O. V. (2006). Bioraznoobrazie vodoroslei-indikatorov okruzhaiushchei sredy [Biodiversity of algae-indica tors of the environment]. Pilies Studio, Tel Aviv (in Russian).

Barinova, S., Romanov, R., & Solak, C. N. (2014). New record of Chara hispida (L.) Hartm. (Streptophyta: Charophyceae, Charales) from the Işıklı Lake (Turkey) and critical checklist of Turkish charophytes. Natural Resources and Conservation, 2(3), 33–42.

Bazhenova, O. P. (ed.) (2014). Cyanoprokaryota in plankton of the rivers and lakes of Omsk Priirtyshye (Russia). International Journal on Algae, 16(2), 144–155.

Begun, A. A., Ryabushko, L. I., & Zvyagintsev, A. Y. (2015). Bacillario phyta of periphyton of navigation buoys in the Posiet bay area (the sea of Japan, Russia). International Journal on Algae, 17(1), 23–36.

Belous, Y. P., Barinova, S. S., & Klochenko, P. D. (2013). Phytoplankton of the middle section of the Southern Bug river as the index of its ecological state. Hydrobiological Journal, 49(6), 29–42.

Dixit, S. S., Smol, J. P., Kingston, J. C., & Charles, D. F. (1992). Diatoms: Powerful indicators of environmental change. Environmental Science and Technology, 26, 23–33.

Friederike, B., Philipp, J., Eamonn, F., & Klaus-Peter, E. (2016). Environmental and structural factors influencing algal communities in small streams and ditches in central Germany. Journal of Freshwater Ecology, 32(1), 1–19.

Kirichuk, G. Y., & Stadnichenko, A. P. (2011). Effect of trematoda infestation and zinc ions of the aquatic medium on hemocytes and some hematological characteristics of Planorbarius purpura (Mollusca: Gastropoda: Pulmonata: Bulinidae). Hydrobiological Journal, 47(1), 105–113.

Koprivnikar, J., Baker, R. L., & Forbes, M. R. (2007). Environmental factors influencing community composition of gastropods and their trematode parasites in southern Ontario. Journal of Parasitology, 93(5), 992–998.

Kyrychuk, G. Y. (2006). Peculiarities of accumulation of the ions of heavy metals in the organism of freshwater mollusks. Hydrobiological Journal, 42(6), 93–103.

Kyrychuk, G. Y., Metelska, M. O., & Korniichuk, N. M. (2016). Osoblyvosti vydovoho skladu alhoepibiontiv cherepashok cherevonohykh moliuskiv r. Uzh [Species peculiarities of algal epibionts on gastropod shells of the river Uzh]. Naukovyi Visnyk Uzhhorodskoho Universytetu Seriia Biolohiia, 41, 26–30 (in Ukrainian).

Kyrychuk, G. Y., & Muzyka, L. V. (2015). Vplyv kontsentratsii amonii khlorydu na vmist karotynoidnykh pihmentiv v orhanizmi Lymnaea stagnalis [The effect of ammonium chloride concentrations on the content of carotenoid pigments in the body of Lymnaea stagnalis]. Visnyk of Dnipropetrovsk University. Biology, Ecology, 23(2), 154–160 (in Ukrainian).

Kyrychuk, G. Y., & Muzyka, L. V. (2016). Peculiarities of the distribution of β-carotene in the organism of Lymnaea stagnalis under the influence of the ions of heavy metals. Hydrobiological Journal, 52(5), 63–72.

Larned, S. T. (2010). A prospectus for periphyton: Recent and future ecological research. Journal of the North American Benthological Society, 29(1), 182–206.

Leland, H. V., & Carter, J. L. (1985). Effects of copper on production of periphyton, nitrogen fixation and processing of leaf litter in a Sierra Nevada, California Stream. Freshwater Biology, 15(2), 155–173.

Lengyel, E., Padisk, J., & Stenger-Kovбcs, C. (2015). Establishment of equilibrium states and effect of disturbances on benthic diatom assemblages of the Torna-stream, Hungary. Hydrobiologia, 750(1), 43–56.

Nesterova, D. A. (2003). Phytoplankton of the Black Sea: Geological past, geographic distribution of species and influence of the river flow. International Journal on Algae, 5(3), 1–21.

Omar, W. M. W. (2010). Perspectives on the use of algae as biological indicators for monitoring and protecting aquatic environments, with special reference to Malaysian freshwater ecosystems. Tropical Life Sciences Research, 21(2), 51.

Orvain, F., & Sauriau, P. G. (2002). Environmental and behavioural factors affecting activity in the intertidal gastropod Hydrobia ulvae. Journal of Experimental Marine Biology and Ecology, 272(2), 191–216.

Palmer, C. M. (1969). A composite rating of algae tolerating organic pollution. Journal of Phycology, 5(1), 78–82.

Round, F. E. (1991). Diatoms in river water-monitoring studies. Journal of Applied Phycology, 3, 129–145.

Shcherbak, V. I., & Korneychuk, N. N. (2006). Influence of hydrological and morphological characteristics of the Teterev river on the structure of phytomicroepilithon. Hydrobiological Journal, 42(5), 25–38.

Shcherbak, V. I., & Koziychuk, E. S. (2016). Phytomicrobenthos dynamics in water bodies of various types in the Kiliya delta of the Danube river depending on some ecological factors. Hydrobiological Journal, 52(3), 3–14.

Shcherbak, V. I., & Semenyuk, N. Y. (2011). Use of phytoperiphyton for the assessment of the ecological state of anthropically changed aquatic ecosystems. Hydrobiological Journal, 47(4), 24–40.

Shelyuk, Y. S. (2014). Phytoplankton structure and functioning in artificial water bodies of the town of Zhitomir. Hydrobiological Journal, 50(4), 15–27.

Sitnikova, T. Y. (ed.) (2010). Distribution of Gastropoda in the littoral zone of Lake Baikal. Hydrobiological Journal, 46(3), 3–19.

Solak, C. N., Barinova, S., Acs, E., & Dayioğlu, H. (2012). Diversity and ecology of diatoms from Felent creek (Sakarya river basin), Turkey. Turkish Journal of Botany, 36(2), 191–203.

Stadnichenko, A. P. (2004). Lymnaeidae i Acroloxidae Ukrainy [Lymnaeidae and Acroloxidae of the Ukraine]. Tsentr Uchebnoy Literatury, Kyiv (in Russian).

Stadnichenko, A. P. (2006). Lymnaeidae i Acroloxidae Ukrainy: Metody sbora i izuchenija biologii, ekologii, poleznoj i vrednoj cennosti [Lymnaeidae and Acroloxidae Ukraine: The methods of collecting and studying the biology, ecology, useful and harmful value]. Ruta, Zhitomir (in Russian).

Stadnychenko, A. P., Kyrychuk, G. Y., & Taran, K. V. (2005). Influence of environmental factors on the carbohydrate metabolism regulation in Purple Ramshorn Snail (Planorbarius purpura: Mollusca, Pulmonata, Bulinidae). Hydrobiological Journal, 41(5), 118–124.

Topachevskij, A. V., & Masyuk, N. P. (1984). Presnovodnye vodorosli Ukrain skoj SSR [Freshwater algae of the Ukrainian SSR]. Vishha Shkola, Kyiv (in Russian).

Young, H. K., & Jung, K. A. (2005). Ecological characteristics of marine algal communities at the discharge canals of three nuclear power plants on the East Coast of Korea. Algae, 20(3), 217–224.

Published
2017-07-15
Section
Articles