Features of naturalization, ecology and allocation of Benthophilus stellatus (Sauvage, 1874) – an invasive species of Cheboksary reservoir

Moiseev, Alexey; Klevakin, A. A.; Смирнов, А. А.

doi:10.37663/0131-6184-2022-6-53-57

Cited by 1 publication

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Under the mixed lake-river conditions of the Cheboksary reservoir the stellate tadpole goby could potentially become a numerous species [22]. But for its population were not noted high levels of the average density in the last decade.…”

Section: Resultsmentioning

confidence: 99%

The adventive species community changes in the Cheboksary reservoir during 2001-2021

Moiseev

Смирнов

2023

E3S Web Conf.

View full text Add to dashboard Cite

Generally publications devoted to invasive fish species in the Volga-Kama cascade of reservoirs represents relative indicators and do not provide data on the abundance, numbers and invasive communities’ single species dynamics. It does not allow providing a correct assessment of population’s state and changes in the nonindigenous species composition. In this work, changes in the abundance and species structure of the Cheboksary reservoir’s invasive fish community during 2001-2021 were estimated. The total fish count was determined on data of active fishing gears catches and precise reservoir area. Differentiation into mass, widespread and relatively numerous and locally found with a small average abundance species was noted. A decrease in the species evenness of the invasive community was recorded in consequence of the Black Sea-Caspian sprat Clupeonella cultriventris (Nordmann, 1840) and the round goby Neogobius melanostomus (Pallas, 1814) domination rise. The Black Sea-Caspian sprat and the round goby put together for 98.7% of the total number of invasive fish in the current period. Due to this two dominant species there is a tendency to increase the relative abundance of invasive fish species in the reservoir up to 561 unit/ha despite a significant decrease in the abundance of some other invaders.

show abstract

Section: Resultsmentioning

confidence: 99%