Results 41 to 50 of about 18,868 (206)
River Research and Applications, EarlyView.ABSTRACT Globally, there has been an increase in the development and use of hydropower to produce energy. Hydropeaking is an operating regime that is used to meet real‐time energy demands; however, daily fluctuations in flows may result in fish becoming stranded.
Raegan Davis +2 more
wiley +1 more source
River Research and Applications, EarlyView.ABSTRACT Regulated rivers represent complex hydrological systems where groundwater–surface water interactions are governed by natural conditions and human interventions. This study investigates the spatiotemporal dynamics of groundwater–surface water exchanges in the Nechako River, British Columbia (Canada), using numerical simulations.
Milad Fakhari +4 more
wiley +1 more source
Aquaculture Reports, 2022 The Siberian sturgeon (Acipenser baerii) is a long-lived and late-maturing fish; its natural populations are considered endangered and listed in the first class of protected animals in Kazakhstan.
Serik Bakiyev +6 more
doaj +1 more source
Age and heat stress as determinants of telomere length in a long-lived fish, the Siberian Sturgeon [PDF]
, 2016 Telomeres shorten at each cell division due to the end-replication problem but also in response to oxidative stress. Consequently, telomeres shorten with age in many endotherms, and this shortening is accelerated under stressful environmental conditions.
Angelier, Frédéric +3 more
core +3 more sources
Using structured decision making to evaluate the tradeoffs of selective fish passage
Conservation Science and Practice, EarlyView.Abstract Dams have dramatically altered rivers and are a major contributor to native fish population declines. However, many dams serve important ecological, social, and economic functions, such as flood control, invasive species control, and provision of recreational opportunities.
Shane Flinn +2 more
wiley +1 more source
AN INVESTIGATION ON THE STURGEON STOCKS IN SOUTHERN CASPIAN SEA
Majallah-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
Cryopreservation of common carp sperm [PDF]
, 2003 Experiments were carried out to investigate the effect of five extenders (sucrose, glucose, fructose, KCl and a saline carp sperm extender) and two cryoprotectants (dimethyl-sulfoxide (DMSO) and methanol) on the cryopreservation of common carp sperm ...
Horváth, Ákos +2 more
core +1 more source
Fish and Fisheries, EarlyView.ABSTRACT Development of data‐intensive stock assessment and ecosystem‐based models has improved our understanding of shifting species abundance in response to fishing, ocean ecology, and species interactions. Along with this analytical progress is evidence that many stocks lack data required for complex models, resulting in data‐limited options for ...
Allegra Ervin +3 more
wiley +1 more source
Majallah-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
Journal 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