Results 41 to 50 of about 9,557 (207)

Isolation and partial characterization of serum immunoglobuline in two species of sturgeons, Siberian sturgeon (Acipenser baerii) and Stellate sturgeon (Acipenser stellatus)

open access: yesMarine Science and Technology Bulletin, 2018
The immunoglobulins (Igs) were isolated and purified respectively from serum of Siberian sturgeon (Acipenser baerii) and Stellate sturgeon (Acipenser stellatus) by using 50% saturated ammonium sulfate precipitation. Analysis of the purified Ig of the two
Azadeh Yektaseresht   +2 more
doaj   +1 more source

River‐Scale Evaluation of a Floating LED Light Array for Behavioral Guidance of American Eel

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Exploiting the sensory physiology of migratory fishes to guide them away from hazards like hydroelectric turbines is of interest to regulatory agencies and hydropower operators to achieve conservation and management goals. Here we describe a river‐scale experiment where out‐migrating adult American eel (Anguilla rostrata) were tracked ...
Chris K. Elvidge   +13 more
wiley   +1 more source

Whole‐Genome Sequencing and Resequencing of Hucho bleekeri Provides Insights into Genetic Mechanisms of Environmental Adaptation

open access: yesIntegrative Zoology, EarlyView.
A high‐quality chromosome‐level reference genome was constructed for Hucho bleekeri. Population structure and environmental adaptation of Hucho species were revealed by whole‐genome resequencing. ABSTRACT Salmonidae represents an important family in the study of genome evolution following genome duplication.
Yeyu Chen   +9 more
wiley   +1 more source

Expression of corticoid‐regulatory genes in the gills of Atlantic salmon (Salmo salar) parr and smolt and during salinity acclimation

open access: yesJournal of Fish Biology, EarlyView.
Abstract In teleost fishes, cortisol is the major corticoid and has both glucocorticoid and mineralocorticoid actions. However, how fish tissues discriminate between these distinct corticosteroid actions is unclear. In mammals, the major factors responsible for intracellular corticosteroid regulation are glucocorticoid receptors (grs) and the ...
Makoto Kusakabe   +4 more
wiley   +1 more source

Acipenser Ruthenus

open access: yes, 1960
Coloured lithograph of Acipenser ruthenus, facing to the left.From the collection of Gord ...

core   +1 more source

AN INVESTIGATION ON THE STURGEON STOCKS IN SOUTHERN CASPIAN SEA

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2008
We launched a summer and winter cruise using two fishing vessels to assess the stocks of the sturgeon fish in the southern coasts of the Caspian Sea in the year 2004-2005.
M. Tavakoli; F. Keymaram; M. Behroz khoshghalb; H. Parandavar
doaj  

Species Identification of Caviar Based on Multiple DNA Barcoding

open access: yesMolecules, 2023
This study aimed to explore the applicability of DNA barcoding for assessing the authenticity of caviar on the Chinese market. A set of universal COI primers and two sets of designed primers based on COI and D-loop genes were used to identify maternal ...
Qingqing Hu   +5 more
doaj   +1 more source

Take my breath away: Defining the oxygen saturation threshold for fish cortisol stress response

open access: yesJournal of Fish Biology, EarlyView.
Abstract Human activities are affecting the number, size and severity of hypoxic zones in aquatic ecosystems. As oxygen is one of the most important abiotic factors affecting fish biology, exposure to low levels of dissolved oxygen may lead to a reduction in fitness.
Sébastien Alfonso   +4 more
wiley   +1 more source

Study on the prevalence and intensity of three parasites in Sturgeon fingerlings cultured in earthen ponds

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2007
In 2001, we studied 2600 sturgeon fingerlings including: 2242 Acipenser persicus, 150 Acipenser stellatus, 150 Acipenser nudiventris and 58 Huso huso from Shahid Beheshti and Yousefpour hatcheries for parasitic infection.
A. Shenavar masoleh1; M. Masoumian2; M. Sattari3; S. Bazari moghadam; J. Jalilpor; Sh. Shafiei; N. Noshi masoleh; M. Noshali; M. Masomzadeh
doaj  

A bristle‐nosed Jurassic ray‐finned fish (Actinopterygii) bears true dermal odontodes on its snout

open access: yesJournal of Anatomy, EarlyView.
Teeth show extreme diversity, including tooth‐like dermal odontodes or “skin teeth” in many extant fishes. We describe the anatomy of enlarged tubercles on the snout of Redfieldius, an extinct early Jurassic fish. We found that the tubercles in Redfieldius are dermal odontodes that evolved independently from those of living species. Abstract Comparison
Jack Stack   +2 more
wiley   +1 more source

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