scholarly journals CHEMICAL COMPOSITION OF FISH MUSCLE OF SMALL RIVERS OF THE YAROSLAVL REGION

Author(s):  
Mikhail Igorevich Malin ◽  
Marina Igorevna Andreeva ◽  
Alena Andreevna Bogdanova ◽  
Daria Andreevna Miroshnichenko ◽  
Aleksandra Aleksandrovna Payuta ◽  
...  

The article presents the study results of the chemical composition of Cyprinidae and Percidae skeletal muscles from the Sot', Vopsha and Kast' rivers in the territory of the Yaroslavsky State Nature Reserve. The fish were ascertained for sex, stage of gonad maturity, and age. The total amount of water, dry matter, total lipids, protein, minerals, and nitrogen-free extractives (NFE) were determined in their muscle tissues. The study revealed significant differences in the content of final metabolic products in the muscles of individuals of the same species living in different rivers, which may be connected to the difference in food supply or with characteristics of hydrochemical composition of the reservoirs under study. It has been stated that the chemical composition of muscle tissues depends on the trophic status of aquatic organisms, their sex and age. On average, in the rivers the carpal skeletal muscles were superior to the perch muscular tissue in terms of total lipid content, but inferior to the amount of protein, ash, and NFE. As it was revealed, the female muscles contained more protein and fat, than muscles of males and juveniles. Reduction of dry matter and fat in the muscle tissues of roach, sabrefish and rudd (aged 4 to 5) can be associated with attaining puberty in fish. With age, a decrease of water was observed in Cyprinidae and Percidae muscles due to accumulation of dry matter. With ageing of the studied fish in their muscle tissues was found both the increased and decreased concentration of protein, total lipids, mineral substances and NFE. From the data obtained it can be inferred that the fish population of the rivers flowing through the territory of the Yaroslavsky State Nature Reserve exist in relatively favorable conditions.

Trudy VNIRO ◽  
2020 ◽  
Vol 179 ◽  
pp. 78-89
Author(s):  
E. A. Flerova ◽  
A. A. Bogdanova ◽  
A. A. Payuta ◽  
E. G. Evdokimov ◽  
M. I. Andreeva

Data on blood and blood-forming organs of species of the cyprinidae and perch family species living in the rivers of the Yaroslavsky State Nature Reserve were obtained. It was revealed that the hematocrit level in the studied species varied in the range of 23–42 %, the total number of erythrocytes was 1.29–2.20 m / μkl, and the number of leukocytes was 65.9–141.2 thousand/ μkl. The relative number of peripheral blood leukocytes varied in the range: lymphocytes 87–90 %, segmented neutrophils — 3–7.5 %, stab neutrophils — 1–4 %, monocytes and eosinophils — 1–3 %. The relative number of lymphocytes in the organs increased in the series mesonephros, spleen, and liver. The number of hemocytoblasts, on the contrary, decreased. The relative number of myelocytes and metamyelocytes in mesonephros and spleen varied from 1 to 3 %, promyelocytes — from 2 to 4.5 %. Of all the species studied in the liver, myelocytes were found only in the bersh; no hemocytoblasts and promyelocytes were found. Regardless of the organ, the relative number of macrophages, plasmocytes and eosinophils varied from 0 to 3 %, stab neutrophils from 3 to 8.5 %. The number of segmented neutrophils in the mesonephros and spleen varied from 3 to 11 %, in the liver this indicator was 1–3 %. The range of obtained values for the studied indicators was comparable with the previously obtained data for the considered fish species living in relatively clean sections of the Rybinsk Reservoir and its tributaries. It was established that the trophic status of the species exerts the greatest influence on the hematocrit level, the total number of peripheral blood leukocytes, and the relative number of leukocytes in peripheral blood and mesonephros.


2013 ◽  
Vol 47 ◽  
pp. 127-134
Author(s):  
O. V. Morozova ◽  
E. S. Popov

The paper describes two records of species of the genus Pseudobaeospora Singer emend. Bas. P. pillodii (Quel.) Wasser, collected in 2009 in the Teberda State Nature Reserve, was found before in Altai [reported as P. oligophylla (Singer) Singer, the type species of the genus], as well as in the Polar Urals. P. pyrifera is new to Russia. The descriptions are illustrated by line drawings and colour photographs.


2018 ◽  
Vol 52 (1) ◽  
pp. 101-121 ◽  
Author(s):  
V. M. Kotkova

The paper provides the data on aphyllophoroid fungi of the State Nature Reserve «Kurgalsky» situated in the Kingisepp District of the Leningrad Region. The list includes 285 species annotated by data on their habitats, substrates and frequency. In total 25 species protected in the Leningrad Region and 3 species protected in Russian Federation were found in the protected area. Chaetodermella luna, Phlebia subochracea and Trechispora stevensonii are published for the first time for the Leningrad Region. The specimens of selected species are kept in the Mycological Herbarium of the Komarov Botanical Institute RAS (LE).


2020 ◽  
Vol 54 (1) ◽  
pp. 73-86
Author(s):  
V. M. Kotkova

The paper provides new data on aphyllophoroid fungi of the State Nature Reserve “Kurgalsky” situated in the Kingisepp District of the Leningrad Region. They were collected on the Kader bog and its vicinity. The list includes 165 species annotated by data on their habitats, substrates and frequency, including 37 species new for the reserve. In total 5 species (Antrodia mellita, Chaetoporellus latitans, Junghuhnia collabens, Rigidoporus crocatus, Sidera lenis) protected in the Leningrad Region and 3 species (Phlebia subserialis, Pseudomerulius montanus, Xenasma pruinosum) new for the Leningrad Region were found in study part of reserve. The specimens of selected species are kept in the Mycological Herbarium of the Komarov Botanical Institute RAS (LE).


2019 ◽  
Vol 53 (2) ◽  
pp. 369-384
Author(s):  
G. Ya. Doroshina ◽  
E. G. Ginzburg ◽  
L. E. Kurbatova

The paper provides the data on mosses of the State Nature Reserve ”Kurgalskiy” situated in the Kingisepp District of the Leningrad Region. The list includes 136 species. Among them Plagiothecium nemorale is new for the Leningrad Region, 83 species are recorded for the first time for the protected area, 12 species are protected in the region, Aulacomnium androgynum is protected in Russia. Of the protected species, Plagiothecium latebricola is recorded for the first time for the protected area. Data on habitats, substrates and frequency of every species are provided.


2011 ◽  
Vol 45 ◽  
pp. 276-291 ◽  
Author(s):  
E. A. Borovichev

An annotated list of hepatics of Monche-tundra Mts. was compiled for the first time. It includes 123 species and 8 varieties. Lophoziopsis excisa var. elegans is reported as new for the Murmansk Region, Lejeunea cavifolia was recorded secondly for the region, and Scapania tundrae is new for Lapland State Nature Reserve. There are 18 species listed in the Red Data Book of Murmansk Region.


2011 ◽  
Vol 45 ◽  
pp. 150-158 ◽  
Author(s):  
D. E. Himelbrant ◽  
I. S. Stepanchikova

The fir (Abies gracilis) grove (Kamchatka Peninsula, Kronotsky State Nature Reserve) is a unique area for the northern part of the Russian Far East. As a result of revision of herbarium specimens and literature data a list of lichens of the fir grove was compiled, comprising 55 species. Of them, 27 species are new to the Kronotsky Reserve, 30 are firstly reported for the grove. Altogether 36 lichen epiphytes of Abies gracilis are known.


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