Sandbank of Seversky Donets near Izium, Ukraine

_ place in Biotope Aquarium Design Contest 2019

Volume: 144 L
Dimensions: 90x40x40 cm
List of fishes: Rutilus rutilus, Astacus astacus, Gobio gobio, Anodonta cygnea, Dreissena polymorpha, Viviparus viviparus
List of plants: Vallisneria natans, Typha angustifolia
Description of decorations: Driftwood, river sand.
Description of equipment: 36W LED lamp, internal filter 750l / h
Water parameters: Temperature +25 pH 7.5
Additional info:

INFORMATION ABOUT BIOTOPE

Description of the area surrounding the biotope:

Description of the underwater landscape of the biotope: The flow in the Seversky Donets in the main channel is quite fast and it is difficult to fix any vegetation on the sandy bottom. However, trunks of broken trees can form small islands, which bypass the main stream. As a result, an entire ecosystem forms around such oases. Plants cling to the ground. Under the driftwood there are bottom species of fish and crayfish, and among the leaves of plants many fish and schools of fry swim.

Description of the parameters of the habitat: The water is clear with a slight suspension, the temperature fluctuates throughout the year, in the summer the sandbank warms up to +27, pH 7.5

List of fishes and invertebrates occurring in the nature biotope: Rutilus rutilus, Astacus astacus, Gobio gobio, Anodonta cygnea, Dreissena polymorpha, Viviparus viviparus

List of plants found in the nature biotope: Vallisneria natans, Týpha angustifólia

Threats to the ecology:

Sources of information: Personal observations in the field.

Comments of the members of the jury of Biotope Aquarium Design Contest 2019