Results 31 to 40 of about 21,549 (221)

Survey on health status of cage-culture sturgeon fishes in the Caspian Sea

, 2016
Considering the significance of sturgeon rearing and producing the meat and caviar which are one of the most development programs in aquaculture, it is necessary to investigate on hygiene condition of rearing environment to gather information about current rearing condition and to adopt the best method for prevention of disease and treatment in ...
Jalil Pour Roudkoli, Jalil, Masoumzadeh, Mehdi, Alizadeh, Mehdi, Bazari Moghaadm, Soheil, Shenavar Masouleh, Alireza, Hallajian, Ali, Ghasemi, Mohade, Ramazani, B., Mehdi Nezhad, K.   +8 more
openaire   +4 more sources

Periodization and chronology of Caspian culture

Samara Journal of Science, 2019
For a long time the issues of periodization and chronology of the Caspian culture remained controversial. Some researchers attributed the culture to the Neolithic period, while others - to the Eneolithic. The paper presents all the available views on the periodization of the Caspian culture. Its brief characteristic is given.
openaire   +2 more sources

Pottery Assemblage from the Kair-Shak VI and Kara-Khuduk Eneolithic Campsites in the Northern Caspian Sea Region

Археология евразийских степей
The article presents the results of study of pottery from the Kara-Khuduk and Kair-Shak VI Eneolithic sites, located in the Northern Caspian Sea region. According to the method of ornamentation three groups of vessels were distinguished: 1) impresses of ...
Irina N. Vasilieva, Natalia S. Doga
doaj   +1 more source

Galactooligosaccharide effects as prebiotic on intestinal microbiota of different fish species

RUDN Journal of Agronomy and Animal Industries, 2019
Manipulation of the gut microbiota toward potentially beneficial bacteria (probiotics) has beneficial effects on fish physiology and health. The effects of prebiotics on gut microbiota are species specific. The present study aimed at investigation of the
Seyed Hossein Hoseinifar, Hien Van Doan, Ghasem Ashouri   +2 more
doaj   +1 more source

Enemy release: loss of parasites in invasive freshwater bivalves Sinanodonta woodiana and Corbicula fluminea

Ecography, EarlyView.
Invasive freshwater bivalves harm native species, ecosystems and biodiversity, and incur economic costs. The enemy release hypothesis posits that invasive species are released from enemies during the invasion process, giving them a competitive advantage in the new environment.
Binglin Deng, Nicoletta Riccardi, Pin Nie, Maria Urbańska, Timo J. Marjomäki, Wojciech Andrzejewski, Małgorzata Ożgo, Keiko Nakamura, Jouni Taskinen   +8 more
wiley   +1 more source

Some Results on Study of The Oroshayemoye Site in the Steppe Zone of the Volga Region

Археология евразийских степей
Neolithic-Eneolithic sites in the steppe zone are not so many. Therefore, new settlement excavations are very important. One of them is the Oroshayemoye settlement.
Aleksander A. Vybornov, Filat F. Gilyazov, Natalia S. Doga, Marianna A. Kulkova, Aleksander I. Yudin   +4 more
doaj   +1 more source

Radiocarbon chronology of Neolithic in the Lower Don and North-eastern Azov Sea

Documenta Praehistorica, 2017
So far, four different cultural-chronological groups of sites have been identified in the North-eastern Azov Sea and Lower Don River areas, including sites of the Rakushechny Yar culture, Matveev Kurgan culture, Donets culture, and sites of the Caspian ...
Andrey Tsybryi, Viktor Tsybryi, Ekaterina Dolbunova, Andrey Mazurkevich, Marianna Kulkova   +4 more
doaj   +1 more source

Determining hierarchy between conflicting treaties: are there vertical rules in the horizontal system? [PDF]

, 2012
Treaties are contractual instruments that may provide special rules of priority in case they conflict with other treaties. When a treaty does not provide such rules, however, priority is determined by the rules of the Vienna Convention on the Law of ...
BORGEN, CHINKIN, KLABBERS, KLABBERS, KOSKENNIEMI, NOORTMANN, SADAT-AKHAVI   +6 more
core   +1 more source

Stable Carbon and Nitrogen Isotope Analysis Explores Diverse Domestic Goose Management Practices in Medieval and Postmedieval Russia

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT Studying goose domestication through archaeological finds has been challenging due to the similar skeletal morphology of the European domestic goose and its wild progenitor, the greylag goose (Anser anser). We analyzed stable carbon (δ13C) and nitrogen (δ15N) isotopes from bone collagen of subfossil domestic and potentially domestic geese to ...
Johanna Honka, Clément Massé, Arthur O. Askeyev, Igor V. Askeyev, Oleg V. Askeyev, Jouni Aspi, Dilyara N. Shaymuratova, Laura Kvist   +7 more
wiley   +1 more source

Investigation of rainbow trout (Oncorhynchus mykiss) culture in marine floating cages in the Southern Caspian Sea [PDF]

Journal of Aquaculture & Marine Biology, 2020
There is no long history of fish farming cages in the southern Caspian Sea. The rainbow trout is one of the most important fish raised in the last decade in this sea. The aim of this study was to determine the growth performance and survival of rainbow trout (Oncorhynchus mykiss) in floating cages in the south of the Caspian Sea.
openaire   +1 more source