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Administration of PLA Malé Karpaty

tel: +421 33 640 05 49
fax: +421 33 647 40 02
Slovak Republic
Modra
Štúrova 115

Banka, Drahovce, Piešťany, Ratnovce, Sokolovce

alpský región

Larus canus, Larus melanocephalus, Sterna hirundo

Basic geological unit of the site is a sedimentary complex of a fluvial alluvium. The river bed facies site is built of gravels and sandy gravels and the alluvium facies is built of sandy and loamy deposits. It represents permanently water bearing environment with an underground water surface in depth of 1 – 5 m. Fluvial processes in the area were influenced with building up the water reservoir and its dams. The reservoir was filled up with the fluvial deposits. Water surface of the reservoir is the largest landscape feature of the site. There is an artificial island built up from the sandy-gravel sediments. The island provide breeding conditions to several bird species. In addition to it, there are the water surfaces under the dam created by the water penetrations that do not freeze in winter, therefore the locality is used by many bird species for wintering.

Site is one of the three most important areas in Slovakia for nesting of Sterna hirundo and Larus melanocephalus and is one of the five areas for nesting of Larus canus.

Presently, the character and intactness of the area is most being threatened by means of mass recreation (water sports) and sporting angling which both considerably worsen the nesting conditions of gulls and tern bird species (Laridae). Other issues seen as nature conservancy "undesirable" include illegal hunting and poaching. Uncontrollable measures of hydraulic engineering result in the fluctuation of water level during breeding season. Appropriate attention should also be paid to the management of the sand/gravel exploitation (volume restriction), increase in the treed area and the processes of natural succession on breeding islands.

Vyssia kategoria(kod - nazov)	Nazov aktivity
A - poľnohospodárstvo
	používanie pesticídov, hormónov a chemikálií
	hnojenie
D - doprava a komunikácie
	elektrické a telefónne vedenie
E - urganizácia, sídla a rozvoj
	urganizované územia a ľudské sídla
F - využívanie biologických zdrojov iných ako poľnohospodárstvo a lesníctvo
	rekreačný rybolov
	poľovníctvo
G - ľudské vplyvy
	potápanie
	športové a rekreačné štruktúry
H - znečistenie
	znečistenie povrchových vôd
J - prirodzené zmeny systému
	zmeny vo vodných tokoch, všeobecne
	modifikácie v štruktúre vodných tokov
	hrádze, upravené brehy všeobecne
K - prírodné biotické a abiotícké procesy (okrem katastrof)
	súťaživosť (fauna)