Results 241 to 250 of about 27,182 (274)
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Use of electrosense in the feeding behavior of sturgeons.
Integrative Zoology, 2012The electro-receptive lateral line system appeared early in the evolutionary history of fish. Sturgeons, members of the primitive Chondrostei group, are known for their electroreceptors (ampullae of Lorenzini) on the head, which are thought to be ...
Xuguang Zhang +5 more
semanticscholar +1 more source
Conformation of sturgeon pituitary somatotropin
International Journal of Peptide and Protein Research, 1987Pituitary somatotropin (growth hormone) from the sturgeon (Acipenser guldenstadti) has been studied by zero‐order and second‐order absorption spectroscopy, as well as by circular dichroism. Difference absorption spectra have also been generated during proteolytic digestion of the hormone. The molar extinction coefficient of the native protein was found
Harold Papkoff, Thomas A. Bewley
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, 2012
Understanding linkages between natal and nursery habitats is critical for conservation of riverine fishes. Scaphirhynchus sturgeons inhabiting the middle Mississippi River may originate from the Missouri or Mississippi rivers, although relative ...
E. PhelpsQuinton +11 more
semanticscholar +1 more source
Understanding linkages between natal and nursery habitats is critical for conservation of riverine fishes. Scaphirhynchus sturgeons inhabiting the middle Mississippi River may originate from the Missouri or Mississippi rivers, although relative ...
E. PhelpsQuinton +11 more
semanticscholar +1 more source
Iconography of the European Sturgeon in France
2011Iconography of the European sturgeon in ...
Patrick Williot, Nathalie Desse-Berset
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American Journal of Veterinary Research, 2000
Abstract Objective—To determine management, fish, and environmental risk factors for increased mortality and an increased proportion of runts for white sturgeon exposed to white sturgeon iridovirus (WSIV) and white sturgeon herpesvirus-2 (WSHV-2). Animals—White sturgeon in 57 tanks at 1 farm and observations made for fish at another
Susan Yun +4 more
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Abstract Objective—To determine management, fish, and environmental risk factors for increased mortality and an increased proportion of runts for white sturgeon exposed to white sturgeon iridovirus (WSIV) and white sturgeon herpesvirus-2 (WSHV-2). Animals—White sturgeon in 57 tanks at 1 farm and observations made for fish at another
Susan Yun +4 more
openaire +3 more sources
Sturgeons and Paddlefishes: Threatened Fishes in Need of Conservation
, 1993: A review of endangered and threatened chondrostean (sturgeon and paddlefish) species is given. It is shown that at least three species from the territory of the former Soviet Union are the most endangered.
V. Birstein
semanticscholar +1 more source
Distinguishing species of European sturgeons Acipenser spp. using microsatellite allele sequences.
Journal of Fish Biology, 2011Five microsatellite markers were analysed and their alleles were sequenced for the three sturgeon species that lived in western Europe: the European sturgeon Acipenser sturio, the Atlantic sturgeon Acipenser oxyrinchus and the Adriatic sturgeon Acipenser
O. Chassaing, C. Hänni, P. Berrebi
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A visual pigment of the sturgeon retina
Experientia, 1989The visual pigments of hybrid sturgeon (a cross between Acipenser ruthenus (male) and Huso huso (female) have been studied both by the methods of incomplete partial bleaching and HPLC analysis. On the basis of the results obtained the relationship between the structure of opsins and the spectral characteristics of visual pigments is discussed.
J. Kohbara, H. Niwa, Tatsuo Suzuki
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Revised phylogenetic relationships among herpesviruses isolated from sturgeons.
Journal of Aquatic Animal Health, 2008Initial phylogenetic comparisons based on a region of the DNA polymerase of seven herpes-like viruses found in sturgeons in North America and Europe indicated the presence of three distinct clades.
T. Kurobe +3 more
semanticscholar +1 more source
Journal of Applied Ichthyology, 2008
Summary In the past, sturgeons were practically unknown in Greece, both to the public and to scientists, the latter not having had the opportunity to study wild populations of the four native species. Populations of stellate sturgeon (Αcipenser stellatus Pallas, 1771), Adriatic sturgeon (Acipenser naccarii Bonaparte, 1836), and beluga sturgeon (Huso
Costas Perdikaris +3 more
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Summary In the past, sturgeons were practically unknown in Greece, both to the public and to scientists, the latter not having had the opportunity to study wild populations of the four native species. Populations of stellate sturgeon (Αcipenser stellatus Pallas, 1771), Adriatic sturgeon (Acipenser naccarii Bonaparte, 1836), and beluga sturgeon (Huso
Costas Perdikaris +3 more
openaire +2 more sources