Results 41 to 50 of about 27,182 (274)

Danube Sturgeons: Past and Future

open access: yes, 2018
Sturgeons are an ancient order of fish (Acipenseriformes), dating back in their occurrence to over 200 million years ago. The order comprises two families (Acipenseridae and Polyodontidae) and 27 species. Their natural range is restricted to the northern
T. Friedrich
semanticscholar   +1 more source

Biological peculiarities of the body of juvenile sturgeons (Acipenseridae Bonaparte, 1831) under the action of synthetic and organic immunostimulators

open access: yesRibogospodarsʹka Nauka Ukraïni, 2023
Purpose. To analyze the productive-biological and biochemical parameters of sturgeon larvae and fry under conditions of introduction of synthetic (Levamisole) and organic (Chitosan) immunostimulants into their diet.
Yu. Zabytivskyi   +4 more
doaj   +1 more source

Characterization of AHR1 and its functional activity in Atlantic sturgeon and shortnose sturgeon [PDF]

open access: yesAquatic Toxicology, 2018
Sturgeon species are imperiled world-wide by a variety of anthropogenic stressors including chemical contaminants. Atlantic sturgeon, Acipenser oxyrinchus, and shortnose sturgeon, Acipenser brevirostrum, are largely sympatric acipenserids whose young life-stages are often exposed to high levels of benthic-borne PCBs and PCDD/Fs in large estuaries along
Nirmal K. Roy   +5 more
openaire   +3 more sources

Physical characteristics and simulated transport of pallid sturgeon and shovelnose sturgeon eggs [PDF]

open access: yesJournal of Freshwater Ecology, 2020
The imperiled pallid sturgeon (Scaphirhynchus albus) and closely related, but more common, shovelnose sturgeon (S. platorynchus) are believed to broadcast adhesive, demersal eggs in the current and over coarse substrate in turbid rivers of the North American midcontinent.
Kimberly A. Chojnacki   +5 more
openaire   +3 more sources

An Overview of the Factors Affecting the Migration of Sturgeons in Yesilirmak

open access: yesAQUATIC SCIENCES AND ENGINEERING, 2018
DOI: 10.26650/ASE20180002 The Yesilirmak is one of the rivers in Turkey where sturgeons migrate for spawning. It originates in the Kosedag Mountains in Sivas and flows into the Black Sea at the plain of Carsamba.
S. U. Tırıl, Devrim Memiş
semanticscholar   +1 more source

Management applications of genetic structure of anadromous sturgeon populations in the Lower Danube River (LDR), Romania [PDF]

open access: yesScientific Annals of the Danube Delta Institute, 2013
During the last decades, the over-exploitation of sturgeon stocks for caviar production simultaneously with severe habitat deteriorations has led to drastic declines in the natural populations of the Danube River. As a result of (i) decrease of sturgeon
ONĂRĂ Dalia Florentina   +2 more
doaj   +1 more source

Identification of Bester Hybrid and its Parental Species (♀ Huso huso Linnaeus, 1758 and ♂ Acipenser ruthenus Linnaeus, 1758) by Nuclear Markers

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
In Romania, sturgeon farming is gaining advance, different species being raised for commercial purposes and for restocking activities. A correct identification of individuals is imposed since severe ecological damages might occur if non-native species or
Andreea Dudu   +4 more
doaj  

NUTRIENTS DYNIMIC IN AN AQUAPONIC RECIRCULATING SYSTEM FOR STURGEON AND LETTUCE (LACTUCA SATIVA) PRODUCTION

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
Aquaponics are modern production systems, which integrate the aquaculture technology with hydroponic systems (vegetable production without soil) with a goal of fructification of residual nutrients resulted from metabolic activity of fish biomass as high ...
LORENA SFETCU, V. CRISTEA, L. OPREA
doaj  

DETERMINATION OF PROTEIN FRACTIONS IN THE BLOOD OF THE HIGH ECONOMIC VALUE FISH FARMED SPECIES IN ROMANIA

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
In aquaculture, as in any other sector where work is carried out on live bodies, to get a high production yield depends upon maintenance and monitoring of an unaltered health condition of the biological material.
T. PATRICHE, N. PATRICHE
doaj  

On the problem of organization and legal maintenance of works of artificial reproduction of sturgeon in the Caspian Sea

open access: yesЮг России: экология, развитие, 2015
The work reviews actions regarding organization and regulatory support of sturgeons artificial reproduction in Volga-Caspian water area. There has been proved their timeliness and importance for achievement of the set objective.
T. V. Vasilyeva   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy