Communities of Benthos Invertebrates of the Kiliya Delta of the Danube River

Q4 Environmental Science

Hydrobiological Journal Pub Date : 2023-01-01 DOI:10.1615/hydrobj.v59.i6.10

A. V. Liashenko, K. Ye. Zorina-Sakharova

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Abstract

The communities of benthos invertebrates occurring in various biotopes of the water bodies, watercourses, and coastal zone of the Kiliya delta of the Danube River were distinguished based on the similarity of their species composition. It has been found that mainly water salinity is responsible for the formation of their physiognomy and hierarchic organization in the Kiliya delta of the Danube River, whereas the types of bottom sediments and the types of water bodies are responsible for the formation of their components. The levels of hierarchic organization of benthos communities are as follows: the lowest level is formed by primary mosaic communities occurring in various water bodies and on various types of bottom sediments, the next level is formed by the united communities distributed on various types of bottom sediments in fresh or brackish water bodies, whereas the highest level is formed by the communities of the Kiliya branch and the Danube River delta on the whole. It has been shown that the discreteness and continuality of benthos communities in the Kiliya delta of the Danube River are formed due to the development of both fresh and brackish species.

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多瑙河基利亚三角洲底栖动物无脊椎动物群落

根据物种组成的相似性，对多瑙河基利亚三角洲不同水体、河道和海岸带的底栖无脊椎动物群落进行了区分。研究发现，多瑙河基利亚三角洲的地貌和等级组织的形成主要由水体盐度决定，而组成要素的形成主要由底层沉积物类型和水体类型决定。底栖动物群落的等级组织水平为:最低是由分布在不同水体和不同类型底泥上的初级马赛克群落构成的，下一级是由分布在淡水或半咸水水体中不同类型底泥上的联合群落构成的，最高是由基利亚支流和多瑙河三角洲的群落构成的。研究表明，多瑙河基利亚三角洲底栖生物群落的离散性和连续性是由于淡水和半咸淡水物种的共同发育而形成的。

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来源期刊

Hydrobiological Journal Environmental Science-Ecology

CiteScore

0.90

自引率

0.00%

发文量

期刊介绍： This journal contains translations from the premier Russian and Eastern European periodicals in aquatic biology and aquatic ecosystems, supplemented by original articles from elsewhere. The journal publishes in the area of physiology, biochemistry, systematics, ecology and conservation of freshwater fish, invertebrates, vascular plants, zoo- and phytoplankton, as well as freshwater quality and toxicology. While most of the papers deal with inland waters, the journal also publishes articles reporting on expeditionary work, especially the Antarctic and tropical seas. Hydrobiological Journal is valuable to freshwater and marine biologists and chemists, limnologists, environmental scientists, oceanographers, and toxicologists.