Results 31 to 40 of about 3,973 (263)

Landscape and Climate Role in the Formation of Sturgeon Reproduction Biotopes in the Ural River (Zhaiyk) [PDF]

open access: yesE3S Web of Conferences, 2021
Geoecology of the Ural River: landscape, climate, flora, and ichthyofaunal are given. Features of air and water temperature, winds, water sources, and balance are detailed.
Mikodina Ekaterina V.   +2 more
doaj   +1 more source

Nesli Tükenme Tehlikesindeki Mersin Balıklarını (Acipenseridae) Koruma Stratejilerinin Değerlendirilmesi

open access: gold, 2006
Mersin balıkları Avrupa, Asya ve Kuzey Amerika’da 200 milyon yıldır yaşamlarını sürdüren balıklardır. Kuzey yarımküredeki nehir ve göllerde yirminci yüzyılın ortalarına kadar bol miktarda yayılış gösterirken günümüzde nesilleri yok olma tehlikesindedir. Stoklardaki azalmanın nedenleri, nehirlerde üreme göçünü ve üremeyi olumsuz etkileyen barajlar ve su
Serap Ustaoğlu
  +4 more sources

Anatomical study of pericardioperitoneal canal in immature beluga (Huso huso) with ultrasonography. [PDF]

open access: yesVet Med Sci
In the present study on immature beluga, it was observed that the canal is located caudal to the sinus venosus and is caudoventral to it, though caudal to the transverse septum. It has been mentioned that this PPC establishes a connection between the pericardial cavity and the peritoneal cavity, so this connection is between the peritoneal cavity and ...
Zehtabvar O   +4 more
europepmc   +2 more sources

Dynamics of Population of the Great Sturgeon (Beluga) Acipenser huso (Acipenseridae) in the Sea of Azov [PDF]

open access: hybridJournal of Ichthyology : A Translation of Voprosy Ikhtiologii
V. A. Luzhnyak, A. V. Mirzoyan
semanticscholar   +2 more sources

Environmental DNA Reveals the Fish Community Structure Exhibited Instability and Trend of Miniaturization in the Xijiang River Basin of the Guizhou. [PDF]

open access: yesEcol Evol
Monitoring of fish communities is of great significance for the management and sustainability of river ecosystems. Environmental DNA (eDNA) metabarcoding technology has been demonstrated to be a highly sensitive biomonitoring tool. Nevertheless, it has seldom been tested in mountainous rivers within the geographically complex Karst region.
Ma X   +5 more
europepmc   +2 more sources

Late Cretaceous sturgeons (Acipenseridae) from North America, with two new species from the Tanis site in the Hell Creek Formation of North Dakota

open access: yesJournal of Paleontology, 2022
. Although the Cretaceous is widely regarded as a time of great evolutionary transition for the freshwater fish fauna of North America, the fossil record of this period is notoriously poor, consisting mostly of fragments and isolated skeletal elements ...
E. Hilton, L. Grande
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
semanticscholar   +1 more source

Morphometric characteristics of return hybrids of kaluga Huso dauricus and sterlet Acipenser ruthenius (Acipenseridae)

open access: yesVESTNIK OF ASTRAKHAN STATE TECHNICAL UNIVERSITY SERIES FISHING INDUSTRY, 2023
The sturgeon fish species cultivation is a necessary activity for the preservation of natural populations in critical condition as well as in a market economy, makes it possible to obtain food products with high added value.
V. Sviderskiy
semanticscholar   +1 more source

Conservation Status and Effectiveness of the National and International Policies for the Protection and Conservation of Sturgeons in the Danube River and Black Sea Basin

open access: yesDiversity, 2023
Rivers and their watersheds have been subject to various changes, including biodiversity, caused by anthropogenic activities. The Danube River and Black Sea basin overlap the geographic range of six species of anadromous fish belonging to the family ...
Daniela Strat   +1 more
doaj   +1 more source

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