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ТАКСОНОМІЧНА СТРУКТУРА УГРУПОВАНЬ НЕМАТОД РІЧКИ СТРИЖЕНЬ (ЧЕРНІГІВСЬКА ОБЛАСТЬ)

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Т. Н. Жилина, В. Л. Шевченко

Черниговский национальный педагогический университет имени Т. Г. Шевченко

ТАКСОНОМИЧЕСКАЯ СТРУКТУРА СООБЩЕСТВ НЕМАТОД РЕКИ СТРИЖЕНЬ (ЧЕРНИГОВСКАЯ ОБЛАСТЬ)

Впервые на территории Черниговской области исследована фауна нематод реки Стрижень, которая представлена 19 видами из 8 отрядов. Наибольшим видовым разнообразием характеризуются отряды Tylenchida и Rhabditida. Средняя численность нематод в пробах ила составляла 138313 особей / м2. Численно преобладали представители отряда Triplonchida.

Ключевые слова: нематоды, река Стрижень, видовое разнообразие, численность

 

T. M. Zhylina, V. L. Shevchenko

Chernihiv T. G. Shevchenko National Pedagogical University, Ukraine

TAXONOMIC STRUCTURE OF NEMATODE COMMUNITIES IN STRYZHEN RIVER (CHERNIHIV REGION)

Free living nematodes are an important component of aquatic ecosystems and form the basis of the zoobenthos in hydrocenoses. At 10 certain stations located on the Stryzhen river bed (Chernihiv region) in August-September of 2015 the research of microzoobenthos was conducted. In total, in the sludge of the river Stryzhen coastal zone 19 nematode species belonging to 8 orders, 15 families, 17 genera were found. The basis of the fauna consists of two orders, namely Tylenchida and Rhabditida, which include almost half of all detected species - 9 (47.37%). Most often the samples contained the representatives of the order of Triplonchida (71,43%), followed by the representatives of the orders of the Monhysterida (42,86%) and Dorylaimida (38,10%). The third place was divided between Rhabditida and Tylenchida, the frequency of occurrence of the representatives of each order is 28.57%. The average number of nematodes in the samples of sludge is 138313 individuals/m2. Numerically dominated there are representatives of the order of Triplonchida, the fraction of which in total is 38,18%. Other orders are represented quantitatively as follows: Monhysterida – 20.73%, Dorylaimida – 18,63%, Rhabditida – 12.84%, Tylenchida – 3,66%, Mononchida – 3,45%, Plectida – 2,12%, Araeolaimida – 0,39%.

Keywords: nematodes, the Stryzhen river, species diversity, abundance