Results 81 to 90 of about 3,834,989 (195)
Invasive Ponto-Caspian amphipods and fish increase the distribution range of the acanthocephalan Pomphorhynchus tereticollis in the river Rhine [PDF]
Non-indigenous species that become invasive are one of the main drivers of biodiversity loss worldwide. In various freshwater systems in Europe, populations of native amphipods and fish are progressively displaced by highly adaptive non-indigenous ...
Palm Harry W. +13 more
core +1 more source
Caspian brown trout (Salmo trutta caspius) is one of the economically valuable species in the Caspian Sea. Artificial propagation and production of larvae are the main problems in the early culture of this species. The purpose of this paper is to study
Rahbar, M. +6 more
doaj
Ethnic culture of Guilan and role of the Caspian Sea in it - based on views of Russian travelers
In this paper, based on a descriptive-analytical method, the researchers attempt to explore this matter with the help of Russian authors’ works. The purpose of this study is to examine the role and the degree of importance of Guilan in the travel accounts of Russian travelers who were concerned by the Russian government. Among the results of the study,
KOHANSAL H., PANAHI A., GOLANDAM A.
openaire +1 more source
Background and objectives: The USEPA has suggested faecal enterococci as the primary bacterial indicators. Of more importance is their direct correlation with swimmer-associated gastroenteritis in recreation water quality monitoring. In contrast to other
Sahar Irankhah +2 more
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The first occurrence of the Ponto-Caspian invader, Hemimysis anomala G.O. sars, 1907 (Mysidacea) in the UK [PDF]
An invasive Ponto-Caspian mysid, Hemimysis anomala G.O. Sars, 1907, was recorded in England for the first time in 2004. Usually a deep water species, in England H.
Harding, P +2 more
core
The accelerating pace of globalization and digital transformation presents significant challenges and opportunities for higher education institutions, particularly in regions undergoing rapid economic and educational transformations such as the Caspian area.
openaire +1 more source
Mesolithic Monuments of the Western Kazakhstan
The article investigates Mesolithic monuments in Western Kazakhstan. A mesolithic monument Ustyurt is represented by the monuments of Aydabolskaya group: Aydabol 6-7, 9-12, 14-16, 20-23, 25; Aktaylak 1 (layer 1), Aktobe 2, Tchuruk 2 (layers 1 and 2 ...
E. Klyshev, P. Koltsov
doaj
The possibility of VNN occurrence and the effects of nervous necrosis virus (NNV) on immunological and histopathological changes in Caspian Sea salmon (Salmo trutta caspius) fingerlings fed by Chlorella vulgaris [PDF]
This study evaluated the possibility of VNN occurrence and the effects of Chlorella vulgaris on immune parameters before and after exposure to Viral Nervous Necrosis virus in Caspian Sea salmon (Salmo trutta caspius).
Hossein Emadi +4 more
doaj
Culturing Rutilus frisii kutum, a Fish Species of the Caspian Sea, to Marketable Size
Rutilus frisii kutum, belonging to family Cyprinidae, was reared using mono-culture and poly-culture (combined with Chinese carps) methods. The culturing process were carried out in earthen ponds from 22 May to 23 October in 1992 and 1993. Physical and chemical factors, transparency of the water, sanitary control and growth of the fishes were surveyed ...
openaire +2 more sources
Litopenaeus vannamei (Boone, 1931) post-larvae 12 were obtained from Bushehr province and reared at the Caspian Sea Ecological Research Iinstitute (Mazandaran, Iran) in summer 2012 using brackish water of the Caspian Sea. Prior to start of the experiment,
S.M.V. Farabi email ; A.A. Salehi; R. Pourgholam; M. Ghanei Tehrani
doaj

