Due to its central position in the Danube basin and its considerable fishery sector, Hungary plays a key role in the spread of non-native fish species in Europe. Nevertheless, the status of non-native fish has not yet been reviewed for Hungary. Therefore, our aims were (1) to give a comprehensive...

The Yamuna River, one of the most important and sacred rivers of the northern plains of India, is highly polluted. The river originates at the Yamunotri glacier, traverses 120 km to emerge onto the Indo-Gangetic plains at Dakpathar in Uttarakhand, and finally joins the Ganges River at Allahabad...

Esox flaviae represents the native esocid species of the Italian peninsula at present potentially highly threatened by the diffusion of exotic E. lucius. Here, we present a novel mtDNA (N=272) and microsatellite (N=275) dataset including 13 test and 3 reference samples, aimed to delineate the...

Invasion by alien species is a growing concern for nature conservation. We estimated the level of invasion by alien plant species and future invasion risks at the European scale. We used a pan-European atlas and eight regional plant atlases to determine the distribution of alien and native plant...

The concept of biological contamination of aquatic ecosystems and methods of its assessment are considered in the paper. Data on the distribution, main pathways and vectors of invasion, and also the influence of global factors on the processes of invasion are discussed. The effects registered as a...

It is claimed that the distribution of Culicoides-borne viruses is highly influenced by climate. Equine encephalosis virus (EEV) is a Culicoides-borne orbivirus which affects horses and was recently found to be endemic in Israel. To test whether climate is a crucial factor in the geographical...

Invasive species can change ecosystem services, cause loss of biodiversity, alter biogeochemical processes, and significantly affect global economics. Corbicula fluminea is an invasive bivalve found globally in lotic and lentic systems. This study aimed to examine the distribution, density, and...

The purpose of this research was to analyze the abundance and distribution of four recently introduced fish species in the Tiber River basin: Gobio gobio, Luciobarbus graellsii, Rutilus rutilus, and Rhodeus sericeus. An additional aim was to evaluate the relationships of these species with...

Aquaculture in arid Patagonia is potentially affecting the hooded grebe (Podiceps gallardoi), a critically endangered endemic waterbird. Exotic rainbow trout (Oncorhynchus mykiss) were stocked from 1994 in naturally fishless lakes, the primary reproductive habitat of this grebe. Trout and grebes...

The role of cannibalism in crayfish populations is not well understood, despite being a potentially key density-dependent process underpinning population dynamics. We studied the incidence of cannibalism in an introduced signal crayfish Pacifastacus leniusculus population in a Scottish lowland...