scholarly journals Analysis of technical and chemical characteristics as well as the nutritional value of clams from the Sea of Azov

2021 ◽  
Vol 640 (3) ◽  
pp. 032045
Author(s):  
O E Bityutskaya ◽  
L V Donchenko ◽  
KI Moshenec
Keyword(s):  
Nutritional Value ◽  
Chemical Characteristics ◽  
Sea Of Azov ◽  
The Sea Of Azov

scholarly journals Research of the Nutritional Value of Macrophytes of the Sea of Azov

2020 ◽  
Author(s):  
Liudmila Donchenko ◽  
Olga Bityutskaya ◽  
Julia Glubokovskikh
Keyword(s):  
Nutritional Value ◽  
Raw Materials ◽  
Iodine Content ◽  
Essential Amino Acids ◽  
Sea Of Azov ◽  
High Iodine ◽  
The Sea Of Azov ◽  
Sodium Magnesium ◽  
Technological Processing ◽  
Pectin Substances

The paper presents the results of research devoted to the nutritional value of macrophytes − green algae Ulvarigida C. Ag., Cladophora spp., red algae Callithamnion corymbosum (Smith) Lyngb. These typical representatives of the aquatic biocenoses of the coastal waters of the two seas, Cladophora spp., episodically dominate in the periphyton of the Sea of Azov. An analysis of the chemical composition made it possible to establish the predominance of the carbohydrate component (59.2 − 64.9 % absolute dry matter), the presence of pectin substances in significant quantities (% a.d.m.), namely in U. rigida − 12.1, Cladophora sp. − 7.5, C. corymbosum – 6.0. The amino acid composition of algae proteins was studied; limiting essential amino acids were established. In the mineral composition of macrophytes, the presence of phosphorus, calcium, potassium, sodium, magnesium was determined; a high iodine content was noted in U. rigida (4.3 – 4.6 %). All three types of algae belong to low-calorie raw materials (less than 90 kcal/100 g) and with a certain technological processing can be recommended in diets to reduce weight.

Morphometric variability in round goby Neogobius melanostomus (Perciformes: Gobiidae) from the Sea of Azov

2017 ◽  
Vol 26 (2) ◽  
pp. 392-405 ◽  
Author(s):  
O.A. Diripasko ◽  
T.A. Zabroda
Keyword(s):  
Round Goby ◽  
Joint Effect ◽  
Neogobius Melanostomus ◽  
Sea Of Azov ◽  
Morphometric Characters ◽  
One Dimensional ◽  
The Sea Of Azov ◽  
Size Dependent ◽  
Size Variability ◽  
Males And Females

A total of 38 morphometric characters of the round goby Neogobius melanostomus melanostomus (Pallas, 1814) were studied in its native range in the Sea of Azov. The aim was to assess joint effect of sexual dimorphism and size variability on overall variability within groups of samples (populations) using appropriate methods of traditional statistical analysis (one-dimensional and multivariate statistics). Sex and size-dependent variability was studied based on model samples of males and females of different size. Most of the studied morphometric characters of round goby from the Sea of Azov demonstrated statistically significant sex- and size-dependent in-group variability. The pattern of the variability suggests that, for a comparison of round goby from different sea regions and between populations, separate samples of males and females within the range 9–13 cm SL should be examined in order to minimise the effect of the size and sex factors. The approach of searching for the most informative size range could be useful not only for further studies of infraspecific variation but for comparisons between morphologically close gobiin species.

SIMULATION AND EARLY WARNING OF NATURAL AND TECHNOGENIC INFLUENCES IN COASTAL AREAS IN THE SEA OF AZOV

2017 ◽  
Author(s):  
Tatiana Shulga ◽  
Tatiana Shulga ◽  
Leonid Cherkesov ◽  
Leonid Cherkesov
Keyword(s):  
Model Comparison ◽  
Three Dimensional ◽  
Storm Surges ◽  
Ecological Condition ◽  
Sea Of Azov ◽  
The Sea Of Azov ◽  
Waves And Currents ◽  
Coordinate Model ◽  
Passive Admixture ◽  
Comparison Of The Results

In this work, the waves and currents generated by prognostic wind in the Sea of Azov are investigated using a three-dimensional nonlinear sigma-coordinate model. The mathematical model was also used for studying the transformation of passive admixture in the Sea of Azov, caused by the spatiotemporal variations in the fields of wind and atmospheric pressure, obtained from the prediction SKIRON model. Comparison of the results of numerical calculations and the data of field observations, obtained during the action of the wind on a number of hydrological stations was carried out. The evolutions of storm surges, velocities of currents and the characteristics of the pollution region at different levels of intensity of prognostic wind and stationary currents were found. The results of a comprehensive study allow reliably estimate modern ecological condition of offshore zones, develop predictive models of catastrophic water events and make science-based solutions to minimize the possible damage.

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