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Information × Registration Number 0201U004329, 0196U003210 , R & D reports Title Ecologo-morphological investigations of fishes and dolphins as the basis of management of their resources popup.stage_title Head Sabodash Viktor Myfodijovych, Registration Date 20-03-2001 Organization Schmalhausen Institute of Zoology NAS of Ukraine popup.description2 The data on direct dependence of the survival rate of larvae on disturbing factors and the acoustic method of finding fishes using fish locator are presented. It was ascertained that the salt concentration is a determinative factor for the haarder reproduction. When the salinity is lower than 15%o the haarder numbers become 36 times less or even more decreased. The numbers of sturgeon shortened from 16097 thousands in 1992 to 4418 thousands in 1997. The data on effective reproduction of haarder and sturgeon are presented. The native populations of several rare ichthyofauna species were discovered in Middle Dniester river. The main technogenic factors was shown. The mathematical models were chosen to test them on the simple biological objects. The results obtained are the basis for further investigation in the fields of ecology, ethology, artificial reproduction, mathematical modelling and preservation of the biodiversity of water basins. Product Description popup.authors popup.nrat_date 2020-04-02 Close