During multiple annual spawning runs from 2013 to 2021, over 9,000 mature anadromous alewife (Alosa pseudoharengus A. Wilson, 1811) were monitored with passive integrated transponders (PITs) in four rivers of the Chignecto Isthmus, Bay Fundy, Canada. A subsample 384 individuals tagged during 2016–2019 aged 3 6 years (mean ± SD; 4.2 0.7 years, n = 232, males; 4.5 152, females). Biotelemetry reve...

The article provides a brief biography of the ichthyologist Dmitry Nikolayevich Taliev (1908–1952), as well information and illustrations for 24 taxa described by him from White Sea (Gadidae – one subspecies), coast Okhotsk (Salmonidae Lake Baikal (Cottidae 2 species 4 subspecies; Abyssocottidae 6 8 Baunt 1 species). For 19 taxa, photographs radiographs type specimens kept in collection Zoologi...

The problem of the excessive CO2 emitted into atmosphere is one significant problems for modern world and ecology. This article examines dynamics carbon dioxide absorption from thermal power plants, TPP, waste gases by three types microalgae, most typical Russian Federation: Chlorella kessleri, vulgaris, sorokiniana. exhaust TPP contain up to 39% dioxide. In this work, rate model with a content...

Chloroacetanilide herbicides are widely used in the agricultural sector throughout world. Because of their poor biodegradability, high water solubility, and long persistence, chloroacetanilide have a potential to contaminate water, conventional treatment processes do not ensure sufficient removal. Therefore, heterogeneous photocatalysis using TiO2/UV-A was investigated for degradation alachlor,...

Karyological characteristics of bighead goby (Neogobius kessleri) in the Caspian Sea were studied by examining 30 metaphase chromosome spreads from the kidney tissue of 10 specimens. The chromosome number of this species was found 2n=46 and the arm number as NF=46. The prepared karyotype of this species consisted of 23 pairs acro-telocentric (a-t) chromosomes. The chromosomal formula can be sta...