Results 121 to 130 of about 98,504 (307)

Is the Mesolithic-Neolithic Subsistence Dichotomy Real? New Stable Isotope Evidence from the Danube Gorges [PDF]

open access: yes, 2004
The article presents new results of stable isotope analyses made on animal and human bones from the Mesolithic-early Neolithic sites of Lepenski Vir and Vlasac in the Danube Gorges of the Balkans.
Borić, Dušan   +3 more
core   +1 more source

Yangtze Dams Increasingly Threaten the Survival of the Chinese Sturgeon.

open access: yesCurrent Biology, 2018
Dams are considered to be a serious threat to migratory fish on a global scale. Most of the world's rivers have been dammed, including those containing hotspots of fish diversity [1-3]. The mechanism by which dams affect fish is unclear and has often led
Zhenli Huang, Luhai Wang
semanticscholar   +1 more source

Ultrasonography as a non‐invasive technique to assess the effects of diet on the ovaries of female European seabass (Dicentrarchus labrax)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Broodstock management in aquaculture aims to optimise larval production to meet farm demand, which requires precise monitoring of the reproductive cycle. Traditional methods such as histology often require killing of fish, making them unsuitable for monitoring reproductive dynamics at fish level.
Joaquim Tomàs‐Ferrer   +4 more
wiley   +1 more source

NEW BIOTECHNOLOGICAL METHODS FOR CRYOPRESERVATION OF REPRODUCTIVE CELLS OF STURGEON

open access: yesЮг России: экология, развитие, 2016
The aim of the research is to increase the survivability of reproductive cells of sturgeon at cryopreservation and developing reliable technology suitable for use on an industrial scale.Methods.
E. N. Ponomareva   +3 more
doaj   +1 more source

Targeted and untargeted techniques coupled with chemometric tools for the evaluation of sturgeon (Acipenser gueldenstaedtii) freshness during storage at 4 °C.

open access: yesFood Chemistry, 2019
The physico-chemical, textural and color parameters and fluorescence spectra of aromatic amino acids and nucleic acids (AAA + NA), tryptophan residues, nicotinamide adenine dinucleotide (NADH) and vitamin A were scanned on sturgeon samples kept at 4 °C ...
Ferdaous Boughattas   +3 more
semanticscholar   +1 more source

Distributional patterns and habitat associations of sturgeon chub in western Missouri River tributaries of South Dakota

open access: yesJournal of Fish Biology, EarlyView.
Abstract There is a growing body of literature that suggests riverine fish are some of the most threatened taxa on a global scale. Similarly, the literature suggests less‐altered tributaries may offer refugia for large‐river specialists. The greater Mississippi River basin, including the Missouri River system, has been subjected to anthropogenic ...
Mitchell R. Magruder   +2 more
wiley   +1 more source

Sensitivity of Lake Sturgeon population dynamics and genetics to demographic parameters [Powerpoint Slide] [PDF]

open access: yes, 2007
Lake sturgeon Acipenser fulvescens restoration is a priority throughout the Great Lakes basin, where sturgeon have been reduced to less than 1% of historic levels due to habitat degradation, overharvest, and fragmentation of spawning populations.
Hayes, Daniel B., Schueller, Amy M.
core  

Full-length transcriptome sequencing and comparative transcriptomic analysis to uncover genes involved in early gametogenesis in the gonads of Amur sturgeon (Acipenser schrenckii)

open access: yesFrontiers in Zoology, 2019
Sturgeons (Acipenseriformes) are polyploid chondrostean fish that constitute an important model species for studying development and evolution in vertebrates. To better understand the mechanisms of reproduction regulation in sturgeon, this study combined
Xiujuan Zhang   +7 more
semanticscholar   +1 more source

Contrasting population genomic structuring of northern pike (Esox lucius L.) in fresh‐ and brackish water environments: Implications for management and conservation

open access: yesJournal of Fish Biology, EarlyView.
Abstract Understanding the factors that shape population genetic structure is crucial for advancing evolutionary studies and developing effective management and conservation strategies. The northern pike (Esox lucius L.) is a top teleost predator that inhabits fresh and brackish water environments in the northern hemisphere.
Alfonso Diaz‐Suarez   +3 more
wiley   +1 more source

Development of disomic single-locus DNA microsatellite markers for Persian sturgeon (Acipenser persicus) from the Caspian Sea [PDF]

open access: yes, 2013
Understanding the scale at which wild stocks of Persian sturgeon (Acipenser persicus) are genetically discrete is necessary for effective management of this commercially important species.
Kor, Davod   +6 more
core  

Home - About - Disclaimer - Privacy