29 research outputs found
ΠΠΠΠ«Π Π ΠΠΠΠΠΠ’ ΠΠΠ― ΠΠΠ§ΠΠΠΠ― ΠΠΠΠΠΠ ΠΠΠΠΠΠ Π ΠΠΠΠΠΠΠΠΠΠ¬ΠΠ«Π₯ ΠΠΠ’ΠΠΠΠΠ
Activated ester of a carboxylic derivative of europium diethylenetriaminetetraacetate has been synthesized by the interaction of europium salt of diethylenetriaminepentaacetic acid aminoethylamide with di-N-succinimidyl-p-phthalate. This reagent was applied to introduce rare earth metal ions in animal immunoglobulins (monoclonal antibodies). The proteins labelled with Eu3+ provide the required characteristics of fluorescence intensity, background, sensitivity and selectivity in diagnostic systems of lanthanide immunofluorometric assay.ΠΠ·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ΠΌ Π΅Π²ΡΠΎΠΏΠΈΠ΅Π²ΠΎΠΉ ΡΠΎΠ»ΠΈ 2-Π°ΠΌΠΈΠ½ΠΎΡΡΠΈΠ»Π°ΠΌΠΈΠ΄Π° Π΄ΠΈΡΡΠΈΠ»Π΅Π½ΡΡΠΈΠ°ΠΌΠΈΠ½ΠΏΠ΅Π½ΡΠ°ΡΠΊΡΡΡΠ½ΠΎΠΉ ΠΊΠΈΡΠ»ΠΎΡΡ Ρ Π΄ΠΈ-N-ΡΡΠΊΡΠΈΠ½ΠΈΠΌΠΈΠ΄Π½ΡΠΌ ΡΡΠΈΡΠΎΠΌ n-ΡΡΠ°Π»Π΅Π²ΠΎΠΉ ΠΊΠΈΡΠ»ΠΎΡΡ ΠΏΠΎΠ»ΡΡΠ΅Π½ Π°ΠΊΡΠΈΠ²ΠΈΡΠΎΠ²Π°Π½Π½ΡΠΉ ΡΡΠΈΡ ΠΊΠ°ΡΠ±ΠΎΠΊΡΠΈΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄Π½ΠΎΠ³ΠΎ Π΄ΠΈΡΡΠΈΠ»Π΅Π½ΡΡΠΈΠ°ΠΌΠΈΠ½ΡΠ΅ΡΡΠ°Π°ΡΠ΅ΡΠ°ΡΠ° Π΅Π²ΡΠΎΠΏΠΈΡ. ΠΡΠΎΡ ΡΠ΅Π°Π³Π΅Π½Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ Π΄Π»Ρ Π²Π²Π΅Π΄Π΅Π½ΠΈΡ ΠΈΠΎΠ½ΠΎΠ² ΡΠ΅Π΄ΠΊΠΎΠ·Π΅ΠΌΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠ°Π»Π»Π° Π² ΡΡΡΡΠΊΡΡΡΡ ΠΌΠΎΠ»Π΅ΠΊΡΠ» ΠΌΠΎΠ½ΠΎΠΊΠ»ΠΎΠ½Π°Π»ΡΠ½ΡΡ
Π°Π½ΡΠΈΡΠ΅Π». ΠΠ΅Π»ΠΊΠΈ, ΠΌΠ΅ΡΠ΅Π½Π½ΡΠ΅ Eu3 +, ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π»ΠΈ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΡΠ΅ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΠΈΠ½ΡΠ΅Π½ΡΠΈΠ²Π½ΠΎΡΡΠΈ ΡΠ»ΡΠΎΡΠ΅ΡΡΠ΅Π½ΡΠΈΠΈ, ΡΠΎΠ½Π°, ΡΡΠ²ΡΡΠ²ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΠΈ ΠΈ ΡΠΏΠ΅ΡΠΈΡΠΈΡΠ½ΠΎΡΡΠΈ Π² ΠΌΠ΅Π΄ΠΈΡΠΈΠ½ΡΠΊΠΈΡ
Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΈΡ
Π½Π°Π±ΠΎΡΠ°Ρ
Π»Π°Π½ΡΠ°Π½ΠΈΠ΄Π½ΠΎΠ³ΠΎ ΠΈΠΌΠΌΡΠ½ΠΎΡΠ»ΡΠΎΡΠΈΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π°
Integrative Analysis of Harpacticoid Copepod Fauna (Harpacticoida, Copepoda) in the South of Krasnoyarsk Krai: in Several Ergaki Nature Park Waterbodies and the Yenisei River
Π€Π°ΡΠ½Π° Harpacticoida Π‘ΠΈΠ±ΠΈΡΠΈ ΠΈΠ·ΡΡΠ΅Π½Π° Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎ. ΠΠΏΠ΅ΡΠ²ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ ΡΠΎΡΡΠ°Π²
ΡΠ°ΡΠ½Ρ ΡΡΠΈΡ
ΡΠ°ΠΊΠΎΠΎΠ±ΡΠ°Π·Π½ΡΡ
Π½Π΅ΡΠΊΠΎΠ»ΡΠΊΠΈΡ
Π²ΠΎΠ΄ΠΎΠ΅ΠΌΠΎΠ² Π½Π° ΡΠ΅ΡΡΠΈΡΠΎΡΠΈΠΈ ΠΏΡΠΈΡΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΏΠ°ΡΠΊΠ° Β«ΠΡΠ³Π°ΠΊΠΈΒ»
ΠΈ ΡΠ΅ΠΊΠΈ ΠΠ½ΠΈΡΠ΅ΠΉ Π² ΡΠ΅ΡΡΠ΅ Π³ΠΎΡΠΎΠ΄Π° ΠΡΠ°ΡΠ½ΠΎΡΡΡΠΊΠ°, ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ Π΄Π°Π½Π½ΡΠ΅ ΠΏΠΎ ΠΌΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈΠΈ Π½Π°ΠΉΠ΄Π΅Π½Π½ΡΡ
Π²ΠΈΠ΄ΠΎΠ² ΠΈ ΠΏΠΎΠ΄Π²ΠΈΠ΄ΠΎΠ² ΠΈ ΠΈΡ
Π³Π΅Π½Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΠΌ Π±Π°ΡΠΊΠΎΠ΄Π°ΠΌ β Π½ΡΠΊΠ»Π΅ΠΎΡΠΈΠ΄Π½ΡΠΌ ΠΏΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°ΡΠ΅Π»ΡΠ½ΠΎΡΡΡΠΌ ΡΡΠ°Π³ΠΌΠ΅Π½ΡΠ° ΠΌΡΠΠΠ Π‘ΠI. Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ Π² ΠΈΡΠ»Π΅ 2021 Π³. Π² ΠΏΡΠΈΡΠΎΠ΄Π½ΠΎΠΌ ΠΏΠ°ΡΠΊΠ΅ Β«ΠΡΠ³Π°ΠΊΠΈΒ» ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΎ
ΡΠ΅ΡΡΡ Π²ΠΈΠ΄ΠΎΠ² ΠΈ ΠΏΠΎΠ΄Π²ΠΈΠ΄ΠΎΠ² ΡΠ°ΠΊΠΎΠΎΠ±ΡΠ°Π·Π½ΡΡ
ΡΠΎΠ΄ΠΎΠ² Pesceus, Bryocamptus, Maraenobiotus, Attheyella
ΠΈ Moraria; Π² ΠΠ½ΠΈΡΠ΅Π΅ Π½Π°ΠΉΠ΄Π΅Π½Ρ Maraenobiotus ΠΈ Moraria, Π° ΡΠ°ΠΊΠΆΠ΅ Harpacticella inopinata. ΠΡΠ΅ ΡΠ°ΠΊΡΠΎΠ½Ρ
ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½Ρ Π² ΠΏΡΠ΅Π΄Π΅Π»Π°Ρ
ΡΠ²ΠΎΠΈΡ
ΠΈΠ·Π²Π΅ΡΡΠ½ΡΡ
Π°ΡΠ΅Π°Π»ΠΎΠ². ΠΠ»Ρ ΠΏΡΡΠΈ ΠΈΠ· Π½ΠΈΡ
ΠΏΠΎΠ»ΡΡΠ΅Π½Ρ Π³Π΅Π½Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ Π±Π°ΡΠΊΠΎΠ΄Ρ,
Π²ΡΠ΅Π³ΠΎ 25 ΠΏΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°ΡΠ΅Π»ΡΠ½ΠΎΡΡΠ΅ΠΉ. Π€ΠΈΠ»ΠΎΠ³Π΅Π½Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΠΉ Π°Π½Π°Π»ΠΈΠ· ΠΏΠΎΠ΄ΡΠ²Π΅ΡΠ΄ΠΈΠ» Π³Π΅Π½Π΅ΡΠΈΡΠ΅ΡΠΊΡΡ Π±Π»ΠΈΠ·ΠΎΡΡΡ
H. inopinata ΠΈ Attheyella nordenskioldii ΡΠ³Π° ΠΡΠ°ΡΠ½ΠΎΡΡΡΠΊΠΎΠ³ΠΎ ΠΊΡΠ°Ρ ΠΈ ΠΎΠ·Π΅ΡΠ° ΠΠ°ΠΉΠΊΠ°Π» (Π³Π΅Π½Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅
Π΄ΠΈΡΡΠ°Π½ΡΠΈΠΈ 0,014β0,036), Π° ΡΠ°ΠΊΠΆΠ΅ ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΠΎ-Π³Π΅Π½Π΅ΡΠΈΡΠ΅ΡΠΊΡΡ,
Π½ΠΎ Π½Π΅ ΠΌΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΡΡ, ΠΎΠ΄Π½ΠΎΡΠΎΠ΄Π½ΠΎΡΡΡ
Maraenobiotus insignipes insignipes Π½Π΅ΡΠΊΠΎΠ»ΡΠΊΠΈΡ
Π²ΠΎΠ΄ΠΎΠ΅ΠΌΠΎΠ² ΡΠ΅Π³ΠΈΠΎΠ½Π° ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ (ΠΏΠΎΠΏΠ°ΡΠ½ΡΠ΅
Π³Π΅Π½Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ Π΄ΠΈΡΡΠ°Π½ΡΠΈΠΈ Π½Π΅ ΠΏΡΠ΅Π²ΡΡΠ°Π»ΠΈ 0,008). ΠΡΠΎΡ Π²ΠΈΠ΄ Π±ΡΠ» Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½Π΅Π½Π½ΡΠΌ
Π½Π° ΡΠ³Π΅ ΠΡΠ°ΡΠ½ΠΎΡΡΡΠΊΠΎΠ³ΠΎ ΠΊΡΠ°Ρ. Π‘ΡΠ±ΡΠ½Π΄Π΅ΠΌΠΈΠΊ ΠΎΠ·Π΅ΡΠ° ΠΠ°ΠΉΠΊΠ°Π» H. inopinata Π±ΡΠ» Π·Π°ΡΠ΅Π³ΠΈΡΡΡΠΈΡΠΎΠ²Π°Π½ ΡΠΎΠ»ΡΠΊΠΎ
Π² ΠΠ½ΠΈΡΠ΅Π΅. ΠΠΎΠ»ΡΡΠ΅Π½Π½ΡΠ΅ Π΄Π°Π½Π½ΡΠ΅ ΡΠ°ΡΡΠΈΡΡΡΡ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΎ ΡΠ°ΡΠ½ΠΈΡΡΠΈΡΠ΅ΡΠΊΠΎΠΌ, ΠΌΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΌ
ΠΈ Π³Π΅Π½Π΅ΡΠΈΡΠ΅ΡΠΊΠΎΠΌ ΡΠ°Π·Π½ΠΎΠΎΠ±ΡΠ°Π·ΠΈΠΈ Harpacticoida Π²Π½ΡΡΡΠ΅Π½Π½ΠΈΡ
Π²ΠΎΠ΄ Π‘ΠΈΠ±ΠΈΡΠΈThe crustacean fauna of Siberia, in particular the Harpacticoida, has not been studied sufficiently. For the first time, the composition of harpacticoid copepod fauna in several waterbodies in the Ergaki Nature Park and the Yenisei River near the city of Krasnoyarsk is examined, and the data on the morphology and genetic barcodes (nucleotide sequences of the mtDNA fragment COI) of the species and subspecies found are presented. In July 2021, six species and subspecies of harpacticoids of the Pesceus, Bryocamptus, Maraenobiotus, Attheyella and Moraria genera were found in the Ergaki Nature Park; Maraenobiotus, Moraria and Harpacticella inopinata were found in the Yenisei River. All taxa were found within the known distribution ranges. For five of them, genetic barcodes were obtained, a total of 25 sequences. A phylogenetic analysis confirmed the genetic closeness of H. inopinata and Attheyella nordenskioldii in the south of Krasnoyarsk Krai and Lake Baikal (genetic distances were 0.014β0.036), as well as molecular-genetic, but not morphological, homogeneity of Maraenobiotus insignipes insignipes from several waterbodies in the study site (pairwise genetic distances did not exceed 0.008). The latter species has been found the most common in the south of Krasnoyarsk Krai. H. inopinata, a subendemic of Lake Baikal,
has been registered in the Yenisei River only. The data obtained broaden understanding of taxonomic,
morphological and genetic diversity of the Harpacticoida fauna in Siberiaβs inland water
ΠΠΠΠ£ΠΠΠ€ΠΠ ΠΠΠΠ’ΠΠ«Π ΠΠΠΠΠΠ Π€Π£ΠΠΠΠΠΠΠΠΠ ΠΠ Π£ΠΠΠ« Π Π ΠΠΠ ΠΠΠ₯ Π ΠΠΠ©ΠΠΠ«Π₯ ΠΠ ΠΠΠ£ΠΠ’ΠΠ₯
A reagent kit EIA-FUMONISIN for the determination of mycotoxins of fumonisin B group in feeds and foods by a direct competitive enzyme immunoassay using microtitration plate has been developed and tested. The evaluated technicoanalytical parameters of the kit and metrological characteristics of the technique of measurements correspond to the mo- dern level of immunoassay development and provide the determination of fumonisin group B content of agricultural products in a range of 0.11 to 6.0 mg/kg with proper accuracy and precision.Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½ ΠΈ ΠΏΡΠΎΡΠ΅Π» Π²Π½ΡΡΡΠΈΠ»Π°Π±ΠΎΡΠ°ΡΠΎΡΠ½ΡΠ΅ ΠΈΡΠΏΡΡΠ°Π½ΠΈΡ Π½Π°Π±ΠΎΡ ΡΠ΅Π°Π³Π΅Π½ΡΠΎΠ² ΠΠ€Π-Π€Π£ΠΠΠΠΠΠΠ Π΄Π»Ρ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΠΌΠΈΠΊΠΎΡΠΎΠΊΡΠΈΠ½ΠΎΠ², ΠΎΡΠ½ΠΎΡΡΡΠΈΡ
ΡΡ ΠΊ ΡΡΠΌΠΎΠ½ΠΈΠ·ΠΈΠ½Π°ΠΌ Π³ΡΡΠΏΠΏΡ Π, Π² ΠΊΠΎΡΠΌΠ°Ρ
ΠΈ ΠΏΠΈΡΠ΅Π²ΠΎΠΉ ΠΏΡΠΎΠ΄ΡΠΊΡΠΈΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΏΡΡΠΌΠΎΠ³ΠΎ ΠΊΠΎΠ½ΠΊΡΡΠ΅Π½ΡΠ½ΠΎΠ³ΠΎ ΠΈΠΌΠΌΡΠ½ΠΎΡΠ΅ΡΠΌΠ΅Π½ΡΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° (ΠΠ€Π). Π ΡΠΎΡΡΠ°Π² Π½Π°Π±ΠΎΡΠ° Π²Ρ
ΠΎΠ΄ΡΡ ΡΠ°Π·Π±ΠΎΡΠ½ΡΠΉ ΠΌΠΈΠΊΡΠΎΠΏΠ»Π°Π½ΡΠ΅Ρ, Π² Π»ΡΠ½ΠΊΠ°Ρ
ΠΊΠΎΡΠΎΡΠΎΠ³ΠΎ Π±ΠΈΠΎΡΠΏΠ΅ΡΠΈΡΠΈΡΠ΅ΡΠΊΠΈ ΠΈΠΌΠΌΠΎΠ±ΠΈΠ»ΠΈΠ·ΠΎΠ²Π°Π½ΠΎ ΠΌΠΎΠ½ΠΎΠΊΠ»ΠΎΠ½Π°Π»ΡΠ½ΠΎΠ΅ Π°Π½ΡΠΈΡΠ΅Π»ΠΎ, Π³ΠΎΡΠΎΠ²ΡΠΉ ΠΊ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΡΠ°ΡΡΠ²ΠΎΡ ΠΊΠΎΠ½ΡΡΠ³Π°ΡΠ° ΡΡΠΌΠΎΠ½ΠΈΠ·ΠΈΠ½Π° Π1 Ρ ΠΏΠ΅ΡΠΎΠΊΡΠΈΠ΄Π°Π·ΠΎΠΉ ΠΈΠ· ΠΊΠΎΡΠ½Π΅ΠΉ Ρ
ΡΠ΅Π½Π°, Π³ΡΠ°Π΄ΡΠΈΡΠΎΠ²ΠΎΡΠ½ΡΠ΅ ΡΠ°ΡΡΠ²ΠΎΡΡ, ΡΠ°ΡΡΠ²ΠΎΡ Ρ
ΡΠΎΠΌΠΎΠ³Π΅Π½Π° (Π’ΠΠ), ΡΡΠ±ΡΡΡΠ°ΡΠ½ΡΠΉ ΡΠ°ΡΡΠ²ΠΎΡ (ΠΈΠ»ΠΈ Π³ΠΎΡΠΎΠ²ΡΠΉ ΠΊ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ Ρ
ΡΠΎΠΌΠΎΠ³Π΅Π½-ΡΡΠ±ΡΡΡΠ°ΡΠ½ΡΠΉ ΡΠ°ΡΡΠ²ΠΎΡ) ΠΈ ΡΡΠΎΠΏ-ΡΠ΅Π°Π³Π΅Π½Ρ. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Π½ΡΠ΅ ΡΠ΅Ρ
Π½ΠΈΠΊΠΎ-Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡ Π½Π°Π±ΠΎΡΠ° ΠΈ ΠΌΠ΅ΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠΈ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΈΡ ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΠΉ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡ ΡΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎΠΌΡ ΡΡΠΎΠ²Π½Ρ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΠΠ€Π ΠΈ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡ Ρ Π½Π°Π΄Π»Π΅ΠΆΠ°ΡΠ΅ΠΉ ΡΠΎΡΠ½ΠΎΡΡΡΡ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΡΡ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ ΡΡΠΌΠΎΠ½ΠΈΠ·ΠΈΠ½ΠΎΠ² Π² Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ ΠΎΡ 0,11 Π΄ΠΎ 6,0 ΠΌΠ³/ΠΊΠ³ Π² ΡΠ΅Π»ΡΡΠΊΠΎΡ
ΠΎΠ·ΡΠΉΡΡΠ²Π΅Π½Π½ΠΎΠΉ ΠΏΡΠΎΠ΄ΡΠΊΡΠΈΠΈ
Data on taxa composition of freshwater zooplankton and meiobenthos across Arctic regions of Russia
We present the presence/absence species list (Table 1) of rotifer, cladoceran, and copepod (Calanoida, Harpacticoida, and Cyclopoida) fauna from seven Arctic regions of Russia (the Kola Peninsula, the Pechora River Delta, the Bolshezemelskaya tundra, the Polar Ural, the Putorana Plateau, the Lena River Delta, and the Indigirka River Basin) based on our own and literature data. Our own records were obtained by analyzing samples of zooplankton, meiobenthos, and two cores of bottom sediments (from the Kola Peninsula and the Bolshezemelskaya tundra lakes) that we collected once in July or August in 1992, 1995β2017. To supplement the list, we used relevant literature with periods of research from the 1960s to the 2010s. The list is almost identical to βDataset 2: Zooplankton and Meiofauna across Arctic Regions of Russiaβ, which was analyzed but not published in [1]. The detailed analysis of this list revealed the specific composition of the aquatic fauna associated with the climatic and geographical factors [1]. The data provide information on the current state of biodiversity and species richness in Arctic fresh waters and can serve as the basis for monitoring these environments and predicting how they are likely to change in the future
Secondary production of highly unsaturated fatty acids by zoobenthos across rivers contrasting in temperature
Highly unsaturated fatty acids (HUFA), namely eicosapentaenoic acid (20:5n-3, EPA) and docosahexaenoic acid (22:6n-3, DHA), which are essential for many animals, including humans, are mainly produced in aquatic trophic webs. In fast-flowing rivers, macrozoobenthos is the main source of HUFA for fish and may be particularly vulnerable to thermal alterations associated with climate change. We studied benthic communities in a unique natural ecosystem: the Yenisei River downstream of the dam of Krasnoyarsk Hydroelectric Power Station with very low temperature in summer because of discharge of cold water from deep in the reservoir and its tributaries with high summer temperature. This βnatural experimentβ allowed to get rid of confounding factors, such as differences in light, seasonality, geology (biogeochemistry) and biogeography (regional species pools). As found, in spite of an increase of biodiversity and rates of daily production in warm rivers compared with cold sites, DHA and partly EPA production of zoobenthos decreased with the increase of temperature because of changes in species composition. Thus, in a climate warming context, we can predict a decrease of production of these HUFA by river zoobenthos and thereby a diminishing of their supply for fish and next to humans
Contribution of Phytoplankton of the Euphotic and Disphotic Zones to the Primary Production of a Fresh Water Body
Biogeographic patterns of planktonic and meiobenthic fauna diversity in inland waters of the Russian Arctic
Β© 2020 John Wiley & Sons Ltd. Broad-scale assessment of biodiversity is needed for detection of future changes across substantial regions of the Arctic. Presently, there are large data and information gaps in species composition and richness of the freshwater planktonic and meiobenthos communities of the Russian Arctic. Analysis of these data is very important for identifying the spatial distribution and temporal changes in species richness and diversity of rotifers, cladocerans, and copepods in the continental Russian Arctic. We investigated biogeographic patterns of freshwater plankton and meiobenthos from c. 67Β° to 73Β°N by analysing data over the period 1960β2017. These data include information on the composition of rotifers, cladocerans, and copepods obtained from planktonic and meiobenthic samples, as well as from subfossil remains in bottom sediments of seven regions from the Kola Peninsula in the west, to the Indigirka River Basin (east Siberia) in the east. Total richness included 175 species comprised of 49 rotifer genera, 81 species from 40 cladoceran genera, and 101 species from 42 genera of calanoid, cyclopoid, and harpacticoid copepods. Longitudinal trends in rotifer and micro-crustacean diversity were revealed by change in species composition from Europe to eastern Siberia. The most common and widespread species were 19 ubiquitous taxa that included Kellicottia longispina (Rotifera), Chydorus sphaericus s. lat. (Cladocera), Heterocope borealis, Acanthocyclops vernalis, and Moraria duthiei (Copepoda). The highest number of rare species was recorded in the well-studied region of the Bolshezemelskaya tundra and in the Putorana Plateau. The total number of copepod and rotifer species in both Arctic lakes and ponds tended to increase with latitude. Relative species richness of copepods was positively associated with waterbody area, elevation, and precipitation, while relative species richness of cladocerans was positively related to temperature. This result is consistent with known thermophilic characteristics of cladocerans and the cold tolerance properties of copepods, with the former being dominant in shallow, warmer waterbodies of some western regions, and the latter being dominant in large cold lakes and waterbodies of eastern regions. Rotifers showed a negative association with these factors. Alpha- and Ξ²-diversity of zooplankton in the Russian Arctic were strongly related to waterbody type. Lake zooplankton communities were more diverse than those in pond and pool systems. Moreover, the highest Ξ²-diversity values were observed in regions that showed a greater breadth in latitude and highly heterogeneous environmental conditions and waterbody types (Bolshezemelskaya tundra and Putorana Plateau). Redistribution of freshwater micro-fauna caused by human activities occurred in the 1990s and 2000s. As a result of climate warming, a few cladoceran species appear to have extended their range northward. Nevertheless, the rotifer and micro-crustacean fauna composition and diversity of the majority of Arctic regions generally remain temporally conservative, and spatial differences in composition and species richness are chiefly associated with the differences between the warmer European and colder east Siberian climates
Numerical Modeling of Vertical Distribution of Living and Dead Copepods Arctodiaptomus salinus in Salt Lake Shira
Numerical modeling of vertical distribution of living and dead copepods Arctodiaptomus salinus in salt Lake Shira
Π’Π΅ΠΊΡΡ ΡΡΠ°ΡΡΠΈ Π½Π΅ ΠΏΡΠ±Π»ΠΈΠΊΡΠ΅ΡΡΡ Π² ΠΎΡΠΊΡΡΡΠΎΠΌ Π΄ΠΎΡΡΡΠΏΠ΅ Π² ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΠΈΠΈ Ρ ΠΏΠΎΠ»ΠΈΡΠΈΠΊΠΎΠΉ ΠΆΡΡΠ½Π°Π»Π°.Π Π³Π»ΡΠ±ΠΎΠΊΠΎΠΌ ΡΡΡΠ°ΡΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΌ Π²ΠΎΠ΄ΠΎΠ΅ΠΌΠ΅ ΠΏΡΠΎΡΠ΅ΡΡΡ ΡΠΎΡΡΠ° ΠΈ ΡΠΌΠ΅ΡΡΠ½ΠΎΡΡΠΈ ΠΏΠΎΠΏΡΠ»ΡΡΠΈΠΈ Π·ΠΎΠΎΠΏΠ»Π°Π½ΠΊΡΠΎΠ½Π° Π²ΡΡΠ°ΠΆΠ°ΡΡΡΡ Π²ΠΎ Π²Π·Π°ΠΈΠΌΠΎΠ·Π°Π²ΠΈΡΠΈΠΌΠΎΠΌ Π½Π΅ΠΎΠ΄Π½ΠΎΡΠΎΠ΄Π½ΠΎΠΌ Π²Π΅ΡΡΠΈΠΊΠ°Π»ΡΠ½ΠΎΠΌ ΡΠ°ΡΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠΈ ΠΆΠΈΠ²ΡΡ
ΠΈ ΠΌΠ΅ΡΡΠ²ΡΡ
ΠΎΡΠΎΠ±Π΅ΠΉ Π² ΡΡΠΎΠ»Π±Π΅ Π²ΠΎΠ΄Ρ. ΠΠ΅ΡΡΠ²ΡΠ΅ ΠΎΡΠΎΠ±ΠΈ ΡΠ»ΠΈΠΌΠΈΠ½ΠΈΡΡΡΡΡΡ ΠΈΠ· ΡΠΎΠ»ΡΠΈ Π²ΠΎΠ΄Ρ ΠΏΡΡΠ΅ΠΌ ΠΎΡΠ΅Π΄Π°Π½ΠΈΡ, Π΄Π΅Π³ΡΠ°Π΄Π°ΡΠΈΠΈ Π·Π° ΡΡΠ΅Ρ ΠΌΠΈΠΊΡΠΎΠ±Π½ΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ, Π΄Π΅ΡΡΠΈΡΠΎΡΠ°Π³ΠΈΠΈ ΠΈ Ρ. Π΄. Π ΡΠ»ΡΡΠ°Π΅ ΡΠΏΠΈΠ»ΠΈΠΌΠ½ΠΈΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΠΊΡΠΈΠΌΡΠΌΠ° ΡΠΈΡΠ»Π΅Π½Π½ΠΎΡΡΠΈ Π·ΠΎΠΎΠΏΠ»Π°Π½ΠΊΡΠΎΠ½Π° ΠΈ ΠΏΡΠΈ ΡΡΠ»ΠΎΠ²ΠΈΠΈ ΠΏΡΠ΅ΠΎΠ±Π»Π°Π΄Π°Π½ΠΈΡ ΠΏΡΠΎΡΠ΅ΡΡΠΎΠ² Π΄Π΅Π³ΡΠ°Π΄Π°ΡΠΈΠΈ Π½Π°Π΄ ΠΎΡΠ΅Π΄Π°Π½ΠΈΠ΅ΠΌ, ΠΏΠΎΡΠΎΠΊ ΠΎΡΠΌΠΈΡΠ°ΡΡΠΈΡ
ΠΎΡΠΎΠ±Π΅ΠΉ ΠΈΠΌΠ΅Π΅Ρ Π²ΡΡΠ°ΠΆΠ΅Π½Π½ΠΎΠ΅ ΡΠΊΡΠΏΠΎΠ½Π΅Π½ΡΠΈΠ°Π»ΡΠ½ΠΎΠ΅ ΡΠ±ΡΠ²Π°Π½ΠΈΠ΅ Ρ Π³Π»ΡΠ±ΠΈΠ½ΠΎΠΉ. ΠΡΠΎΡΠΈΠ»Ρ ΡΠΈΡΠ»Π΅Π½Π½ΠΎΡΡΠΈ ΠΌΠ΅ΡΡΠ²ΡΡ
ΡΠ°ΡΠΊΠΎΠ², Π²ΠΊΠ»ΡΡΠ°Ρ ΠΈΡ
ΡΠ±ΡΠ²Π°Π½ΠΈΠ΅ Π² ΠΌΠ΅ΡΠ°- ΠΈ Π³ΠΈΠΏΠΎΠ»ΠΈΠΌΠ½ΠΈΠΎΠ½Π΅, ΠΌΠΎΠΆΠ΅Ρ ΠΎΠΏΠΈΡΡΠ²Π°ΡΡΡΡ Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΠΎΠΉ ΡΠΈΡΠ»Π΅Π½Π½ΠΎΠΉ ΠΌΠΎΠ΄Π΅Π»ΠΈ. ΠΠΏΠΏΡΠΎΠΊΡΠΈΠΌΠ°ΡΠΈΡ ΠΏΠΎΠ»Π΅Π²ΡΡ
Π΄Π°Π½Π½ΡΡ
ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΠΈΡΡ Π·Π½Π°ΡΠ΅Π½ΠΈΡ Π΅ΡΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎΠΉ ΡΠΌΠ΅ΡΡΠ½ΠΎΡΡΠΈ m (Π½Π΅ ΡΠ²ΡΠ·Π°Π½Π½ΠΎΠΉ Ρ Ρ
ΠΈΡΠ½ΠΈΠΊΠΎΠΌ) ΠΈ ΡΠΊΠΎΡΠΎΡΡΠΈ Π΄Π΅Π³ΡΠ°Π΄Π°ΡΠΈΠΈ D ΠΎΡΠΌΠ΅ΡΡΠΈΡ
ΡΠ°ΡΠΊΠΎΠ² Π² Π²ΠΈΠ΄Π΅ ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΡΡ
Π²Π΅Π»ΠΈΡΠΈΠ½ ( m / v ΠΈ D / v , v - ΡΠΊΠΎΡΠΎΡΡΡ ΠΎΡΠ΅Π΄Π°Π½ΠΈΡ), Π»ΠΈΠ±ΠΎ Π°Π±ΡΠΎΠ»ΡΡΠ½ΡΡ
(ΠΏΡΠΈ ΠΈΠ·Π²Π΅ΡΡΠ½ΠΎΠΉ v ). ΠΠ° ΠΏΡΠΈΠΌΠ΅ΡΠ΅ ΠΏΠΎΠΏΡΠ»ΡΡΠΈΠΈ ΠΊΠΎΠΏΠ΅ΠΏΠΎΠ΄ Arctodiaptomus salinus Daday Π² ΠΎΠ·. Π¨ΠΈΡΠ° ΡΠ°ΡΡΡΠΈΡΠ°Π½Π½ΡΠ΅ m ΠΈ D (ΠΌΠ΅Π΄ΠΈΠ°Π½Ρ 0,13 ΠΈ 0,26 ΡΡΡ-1 ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²Π΅Π½Π½ΠΎ) Ρ
ΠΎΡΠΎΡΠΎ ΡΠΎΠ³Π»Π°ΡΡΡΡΡΡ ΡΠΎ Π·Π½Π°ΡΠ΅Π½ΠΈΡΠΌΠΈ, ΠΈΠ·Π²Π΅ΡΡΠ½ΡΠΌΠΈ ΠΈΠ· Π»ΠΈΡΠ΅ΡΠ°ΡΡΡΡ. ΠΡΠ΅ΠΈΠΌΡΡΠ΅ΡΡΠ²ΠΎΠΌ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠΎΠ΄Π° ΡΠ°ΠΊΠΆΠ΅ ΡΠ²Π»ΡΠ΅ΡΡΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΡΡΠΈΡΡΠ²Π°ΡΡ ΡΠ°Π·Π½ΡΡ ΡΠΊΠΎΡΠΎΡΡΡ ΠΎΡΠ΅Π΄Π°Π½ΠΈΡ v ΠΏΠΎ Π³Π»ΡΠ±ΠΈΠ½Π΅