Search Results - "Rabazanov, N. I."

Transoceanic Migrations of Fishlike Animals and Fish: Norm or Exclusion? by Orlov, A. M., Rabazanov, N. I., Nikiforov, A. I.

“…The paper presents an overview of data based on the analysis of published information concerning the transoceanic migrations of lampreys (Petromyzontidae),…”
Get full text

Modern problems of artificial reproduction of sturgeon in the Volga‐Caspian basin by Vasilyeva, L. M., Rabazanov, N. I.

“…Aim . The aim of the study is to analyze the current state of artificial reproduction of the Caspian sturgeon and to identify the problems of reducing…”
Get full text

The Problems of DNA-Barcoding the Shads of Genus Alosa (Alosidae) of the Ponto-Caspian Basin by Orlova, S. Yu, Emelyanova, O. R., Nebesikhina, N. A., Rabazanov, N. I., Orlov, A. M.

“…— Numerous studies show that species identification of representatives of the genus Alosa using various genetic markers is often difficult and the search for…”
Get full text

A Comparative Assessment of Hematological Indicators of Paddlefish (Polyodon Spathula Walbaum, 1792) when Obtaining Mature Oocytes for Food and Fish-Breeding Purposes by Sudakova, N. V., Elnakib, M. A., Rabazanov, N. I.

“…This study was aimed at assessing the state of reproductive function according to the fish-breeding, hematological, and morphophysiological parameters of the…”
Get full text

Ontogenic Changes in Coloration of Rare Deepwater Richardson’s Ray Bathyraja richardsoni (Arhynchobatidae, Rajiformes, Chondrichthyes) by Orlov, A. M., Rabazanov, N. I., Nikiforov, A. I.

“…The features of the coloration of the dorsal and ventral surfaces of the rare deep-sea Richardson’s ray Bathyraja richardsoni (Arhynchobatidae) in the length…”
Get full text

Caspian Lamprey Caspiomyzon wagneri (Petromyzontidae): A Review of Historical and Modern Data by Orlov, A. M., Barkhalov, R. M., Rabazanov, N. I., Orlova, S. Yu, Sokol’skii, A. F.

“…Historical and modern data on the taxonomic status, external morphology, distribution features, biology, economic importance, history of fishing, conservation…”
Get full text

Comparative Assessment of the Current State of Semi-Anadromous and Non-Anadromous Fish Species in the Northern Part of Agrakhan Bay by Vasilyeva, L. M., Rabazanov, N. I., Sudakova, N. V., Anokhina, A. Z., Ramazanova, D. M., Barkhalov, R. M.

“…An unfavorable hydrological regime has contributed in recent years to negative changes in the species and age structure of the ichthyofauna in the northern…”
Get full text

State of the Population of Kezenoi-Am Trout (Salmo trutta ezenami Berg, 1948) and the Forecast of the Development of the Ecological Situation in Lake Kezenoi-Am by Rabazanov, N. I., Barkhalov, R. M., Rabazanov, R. N., Markevich, G. N.

“…The development of the ecosystem of Lake Kezenoi-Am (Eisenam) over the past hundred years is described based on literature data and original materials. The…”
Get full text

The ctenophore Beroe cf. ovata in the Caspian Sea. The beginning of a new stage in the evolution of the Caspian ecosystem? by Vostokov, S. V., Gadzhiev, A. A., Vostokova, A. S., Rabazanov, N. I.

“…Aim . Analysis of the first data regarding the arrival of the predatory ctenophore Beroe cf. ovata in the Caspian Sea and assessment of possible effects of its…”
Get full text

Transformation of the relief of the southern Astrakhan region (Russia) after the expansion of agricultural land at the beginning of the last century by Nikiforova, Z. V., Kosobokova, S. R., Marmilov, A. N., Shabanov, D. I., Medvedeva, E. A., Rabazanov, N. I., Sokolskaya, E. A.

“…To establish the causes and consequences of changes in the relief of the southern Astrakhan region in the period 1900–1970. Comparison of cartographic…”
Get full text

Distribution of Topmouth Gudgeon Pseudorasbora parva (Cyprinidae) in Waterbodies and Watercourses of the Republic of Dagestan, Russia by Barkhalov, R. M., Stolbunov, I. A., Artaev, O. N., Turbanov, I. S., Rabazanov, N. I., Khlopkova, M. V., Karabanov, D. P.

“…This article provides information on the modern distribution of an alien species in the ichthyofauna of the Republic of Dagestan, the topmouth gudgeon…”
Get full text

Development and interaction of ctenophores Beroe ovate Bruguière, 1789 and Mnemiopsis leidyi A. Agassiz, 1865 in the coastal zone of the Middle Caspian Sea by Vostokov, S. V., Gadzhiev, A. A., Lobachev, E. N., Vostokova, A. S., Rabazanov, N. I., Barkhalov, R. M., Sapojnikov, Ph. V., Abtahi, B., Shojaei, M. G.

“…Aim. Analysis of the distribution and status of ctenophores В eroe ovata and Mnemiopsis leidyi , and assessment of the parameters of their interaction in the…”
Get full text

New data on the ctenophore Beroe ovata, an invader to the Caspian Sea by Vostokov, S. V., Vostokova, A. S., Lobachev, E. N., Reza, Rahnama Haratbar, Behrooz, Abtahi, Tumalaeva, O. M., Rabazanov, N. I.

“…Aim. Analysis of new data on populations of invasive ctenopfores Вeroe ovata and Mnemiopsis leidyi in the Caspian Sea and assessment of adaptation of B. ovata…”
Get full text

Integral Diagnostics of Sea Water Quality with the Use of Phyto- and Zooplankton by Rabazanov, N. I., Sokol’skii, A. F., Evseeva, S. S., Rabazanov, R. N.

“…The article presents the integral diagnostics of sea water quality via biological testing on the example of the Tyulenii site. It is based on the guidelines of…”
Get full text

Contemporary ecological state of waters of the Caspian Sea during development of oil and gas deposits by Sokolskiy, A. F., Kanbetov, A. Sh, Popov, N. N., Mutashev, B. A., Rabazanov, N. I.

“…Aim. This study was an attempt by the authors to identify the impact of oil production in the Caspian Sea on the quality of waters surrounding oil and…”
Get full text

Ecology and distribution of the Amur Chebachok  Pseudorasbora parva (Temminck et Schlegel, 1846)  as a biologically invasive species in the delta and estuarine  coast of the river Don by Starsev, A. V., Korchunov, A. A., Rabazanov, N. I., Rabazanov, R. N.

“…Aim. To analyze the results of ichthyological monitoring in order to identify the role  of an invasive fish species, Pseudorasbora parva – known in Russia as…”
Get full text

Impact of Ecological Factors on Fishery-Biological Parameters of Acipenserids under Arid Conditions of a Closed Water Supply Cycle by Mammaev, M. A., Shikhsabekov, M. M., Rabazanov, N. I., Kurbanov, M. S., Mirzakhanov, M. K., Mammaev, R. M.

“…The impact of ecological factors (abiotic and biotic) on some fishery-biological parameters is studied with the raising of acipenserids under arid conditions…”
Get full text

SOME CHANGES OF REPRODUCTION FISH IN PONDS WITH VIOLATED ECOLOGICAL REGIME by Rabazanov, N. I., Shikhshabekov, M. M.

“…The main aim of the article is to study the reproduction and study of gametogenesis (ovo-and spermatogenesis) of many valuable as commercial and of yet not…”
Get full text

OBTAINING STURGEON CAVIER FROM ACIPENSER NIKOLJUKINI BESTER IN UNCONVENTIONAL TERMS by Rabazanov, N. I., Vasilyeva, L. M., Magomayev, F. M., Sudakova, N. V.

“…Aim. The aim is to study the technological processes of obtaining Bester caviar in the unconventional autumn-winter period.Methods. Extraction of caviar was…”
Get full text

PROTEOLYTIC ACTIVITY OF TISSUES CARP AND VOBLA UNDER THE INFLUENCE OF CADMIUM CHLORIDE by Kurbanova, S. I., Rabazanov, N. I., Nurmagomedova, P. M., Magomedova, Z. М., Magomedova, M. M.

“…The effect of CdCI2 (0.25 mg /l) on the proteolytic enzyme activities of the carp tissue are studied. The results confirm the involvement of cathepsin D and…”
Get full text