Výsledky vyhledávání - "A. Yu. Pichugin"

New Data about the Distribution of Three Phylogenetic Lineages of Arctic Charr Salvelinus alpinus (Salmonidae) in their Contact Zones in the North of East Siberia

Autor: M. Yu. Pichugin, S. S. Alekseyev, N. V. Gordeeva, A. F. Kirillov, V. I. Romanov

Publikováno v: Journal of Ichthyology. 61:701-708

Abstract In order to study the distribution of phylogenetic mtDNA lineages of Arctic charr Salvelinus alpinus in their contact zones in the north of East Siberia we analyzed nucleotide sequences of mtDNA control region of charr from 10 Arctic populat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7377034e3a4770c843cac8b21d0415f9
https://doi.org/10.1134/s0032945221050064

Zobrazit plný text záznamu

MAGNETOACOUSTIC WAVES IN PARTIALLY IONIZED HEAT-RELEASING PLASMA: COMPARISON OF ONE-FLUID AND TWO-FLUID MODELS

Autor: D. S. Ryashchikov, Nonna Molevich, S Yu Pichugin

Publikováno v: Bulletin of the Lebedev Physics Institute. 48:206-210

Velocities and increments (decrements) of magnetoacoustic waves are calculated using one-fluid and two-fluid models taking into account actual conditions of photodissociative regions of interstellar partially ionized medium. The admissibility of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e6dde8d880b77b373f63cebdbc5336d9
https://doi.org/10.3103/s1068335621070046

Zobrazit plný text záznamu

Peculiarities of Early Ontogenesis of Nose Char (N1-form), Endemic Lacustrine and Riverine Form of Salvelinus malma Complex (Salmonidae), of the Lake Kronotskoe (Eastern Kamchatka, Russia)

Autor: M. Yu. Pichugin

Publikováno v: Journal of Ichthyology. 60:742-750

The growth, order of anlage, and features of transitive stages of skeletal elements (cranial bones and serial structures: teeth, gill rakers, fin rays, pterigyophores, vertebrae muscles, predorsalia, and scales) in were studied in pre-larvae, larvae,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1b056a04695cdb1b57d5bec31dc7e54d
https://doi.org/10.1134/s0032945220050070

Zobrazit plný text záznamu

Magnetoacoustic Waves in Partially Ionized Two-Fluid Heat-Releasing Plasma

Autor: Nonna Molevich, S Yu Pichugin, D. S. Ryashchikov

Publikováno v: Bulletin of the Lebedev Physics Institute. 47:252-256

A dispersion relation for magnetoacoustic waves in partially ionized heat-releasing plasma in an external magnetic field is derived in a compact form. The increments of slow and fast modified magnetoacoustic waves are calculated in the case of isentr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::95d748c34abd76328ee448a93abfb50f
https://doi.org/10.3103/s1068335620080072

Zobrazit plný text záznamu

Anisotropy of Isobaric Instability in a Partially Ionized Plasma in a Magnetic Field

Autor: Nonna Molevich, S Yu Pichugin, D. S. Ryashchikov

Publikováno v: Bulletin of the Lebedev Physics Institute. 47:1-5

Linear equations describing the dynamics of small perturbations in partially ionized heat-releasing plasma in an external magnetic field with an arbitrary induction vector are obtained. Using these equations, a dispersion relation for condensation mo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dc04dcbca8ffb4aabd99b2a4043c61a3
https://doi.org/10.3103/s1068335620010054

Zobrazit plný text záznamu

Special Traits in Early Ontogenesis of the Endemic Lacustrine Form of the Salvelinus malma Сomplex (Salmonidae), Small-Mouth Form, from Lake Kronotskoe (Eastern Kamchatka)

Autor: M. Yu. Pichugin

Publikováno v: Journal of Ichthyology. 59:895-906

Growth, sequences of anlage, and special traits of transient states are investigated in skeletal elements (skull bones and serial structures—teeth, gill rakers, fin rays and pterygiophores, vertebral centra, predorsalia, scales) in prolarvae, larva

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be33ee7003e1a9345c78cecc40f2e734
https://doi.org/10.1134/s0032945219040118

Zobrazit plný text záznamu

Features of the Changes in External Morphology and Axial Skeleton in Juvenile Salmonid Fishes (Salmonidae) Associated with Smoltification

Autor: M. Yu. Pichugin, D. S. Pavlov, K. V. Kuzishchin, M. A. Gruzdeva

Publikováno v: Journal of Ichthyology. 59:664-679

Changes in external morphological characters and relative lengths of vertebral centra from different regions of the vertebral column are analyzed during smoltification in wild juveniles of five salmonid fish species: Atlantic salmon Salmo salar, brow

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::47cb89cd389ee9a6bd3a2b17e50868fc
https://doi.org/10.1134/s0032945219050084

Zobrazit plný text záznamu

Reproductive Strategies and the Origin of Parapatric and Sympatric Forms of Arctic Charr Salvelinus alpinus (Salmonidae) in the System of Lakes Bol’shoe Leprindo and Maloe Leprindo (Northern Transbaikalia)

Autor: V. S. Khlystov, N. V. Gordeeva, M. Yu. Pichugin, A. L. Yur’ev, V. P. Samusenok, S. S. Alekseyev, A. N. Matveev

Publikováno v: Journal of Ichthyology. 59:527-544

In the system of lakes Bol’shoe Leprindo and Maloe Leprindo (Lena basin, Transbaikalia), spawning of two isolated populations of the dwarf form of Arctic charr Salvelinus alpinus was studied. The results supplemented with the data about the extermi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eae4da9ee816a0a992ebb9c8576958ef
https://doi.org/10.1134/s0032945219040015

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání