Physiological State of the Red Alga Palmaria palmata (L.) F.Weber et D.Mohr in the Barents Sea During the Winter Period

2021 ◽  
Vol 23 (4) ◽  
pp. 395-410
Author(s):  
Inna Ryzhik ◽  
M. Klindukh ◽  
E. Dobychina ◽  
M. Menshakova
Keyword(s):  
Barents Sea ◽  
Physiological State ◽  
Red Alga ◽  
Palmaria Palmata ◽  
Winter Period ◽  
The Barents Sea

scholarly journals The physiological state of the Fucus vesiculosus L. of the Barents Sea in a prolonged air condition

Vestnik MGTU ◽  
2018 ◽  
Vol 21 (2) ◽  
pp. 253-260 ◽  
Author(s):  
I. V. Ryzhik ◽  
◽  
M. V. Makarov ◽  
Keyword(s):  
Barents Sea ◽  
Physiological State ◽  
Fucus Vesiculosus ◽  
The Barents Sea

scholarly journals ADAPTATION, REGULATION OF GROWTH AND REPRODUCTION AND RATIONAL USE OF ALGAE-MACROPHYTES OF THE BARENTS SEA

2020 ◽  
Vol 11 (4) ◽  
pp. 150-178
Author(s):  
G.M. Voskoboinikov ◽  
◽  
V.N. Маkarov ◽  
S.V. Malavenda ◽  
D.V. Pugovkin ◽  
...  
Keyword(s):  
Coastal Waters ◽  
Barents Sea ◽  
Lower Boundary ◽  
Palmaria Palmata ◽  
Symbiotic Association ◽  
Seasonal Temperature ◽  
Electron Microscopic ◽  
Tidal Zone ◽  
The Barents Sea ◽  
First Time

The results of algological researches of the Murmansk Marine Biological Institute for the period from 2015 till 2019 are presented with the following achievements. Analysis of the expeditionary samples revealed 79 species of algae macrophyte, rarely found at the Murman coast, among them 10 species were Chlorophyta, 33 –Phaeophyceae, 36 –Rhodophyta. A significant increase of the occurrence (presence) of Ulva lactuca L.at the Murmansk coast of the Barents Sea in 2009–2019 was noted, due to positive climatic anomalies caused by an increase of the influx of the Atlantic waters. It has been shown for the first time that the various morphological forms of the brown alga Fucus distichuslived on the littoral of the Murmansk coast of the Barents Sea are genetically homogeneous. The morphology of embryogenesis, early ontogenesis of F. distichusis described. It was determined that hydrostatic pressure (from 4 atm) negatively affects the development of spores of Alaria esculentaand Palmaria palmata, and can determine the lower boundary of algae growth. It was shown that a change in the activity of enzymes of the antioxidant system P. palmata: (catalase and superoxide dismutase) depending on the temperature of the environment) is one of the mechanisms of adaptation of algae to growth in the tidal zone and seasonal temperature fluctuations. There were revealed the negative effect of the red algae P. palmataon the growth of F. distichus, F. serratusand the positive effect of Fucus on the growth of P. palmata. A change in the seasonal concentration of 4 B vitamins was determined (riboflavin, pantothenic acid, nicotinic acid and pyridoxine) of P. palmata. Isolated vitamins take part in spore formation and can act as antioxidants. An electron microscopic analysis of the “young” multicellular sporophytes of Saccharina latissimarevealed the presence in cells of a developed photosynthetic reticulum, and a high partial mass of mitochondria, energy structures that apparently provide an intensive process of cell division at this stage of ontogenesis. The participation of florotannins in the regeneration of thallus of Fucus algae was demonstrated. The data on the quantitative and qualitative composition of cultivated and uncultivated epiphytic bacteria of Fucus algae from clean and oil polluted areas of coastal waters of the Barents Sea have been obtained.For the first time, the evidence base presents that morphologically and systematically various macrophyte algae, differing in structure and systematic affiliation, possess in their ability to form a symbiotic association with hydrocarbon-oxidizing bacteria, they show a pronounced ability to sorb and to destruct the oil products, which determines their significant role in bioremediation of coastal waters.

Method application of optimal multi-parameter analysis to assess the distribution of water masses as an example of CTD data of the Barents Sea in summer 2017

2019 ◽  
pp. 38-51
Author(s):  
Valeriy G. Yakubenko ◽  
Anna L. Chultsova
Keyword(s):  
Barents Sea ◽  
Field Measurements ◽  
Structural Similarity ◽  
Water Masses ◽  
Parameter Analysis ◽  
Water Dynamics ◽  
Phosphorus Concentration ◽  
Nitrogen And Phosphorus ◽  
The Barents Sea ◽  
Expert Assessments

Identification of water masses in areas with complex water dynamics is a complex task, which is usually solved by the method of expert assessments. In this paper, it is proposed to use a formal procedure based on the application of the method of optimal multiparametric analysis (OMP analysis). The data of field measurements obtained in the 68th cruise of the R/V “Academician Mstislav Keldysh” in the summer of 2017 in the Barents Sea on the distribution of temperature, salinity, oxygen, silicates, nitrogen, and phosphorus concentration are used as a data for research. A comparison of the results with data on the distribution of water masses in literature based on expert assessments (Oziel et al., 2017), allows us to conclude about their close structural similarity. Some differences are related to spatial and temporal shifts of measurements. This indicates the feasibility of using the OMP analysis technique in oceanological studies to obtain quantitative data on the spatial distribution of different water masses.

CHARACTERISTIC OF OIL AND GAS SOURCE THICKNESS IN THE CROSS-SECTION OF THE BARENTS SEA SHELF

2019 ◽  
pp. 10-17
Author(s):  
V.N. Borodkin ◽  
◽  
A.R. Kurchikov ◽  
O.A. Smirnov ◽  
A.V. Lukashov ◽  
...  
Keyword(s):  
Cross Section ◽  
Oil And Gas ◽  
Barents Sea ◽  
Gas Source ◽  
The Barents Sea ◽  
The Cross
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