Results 31 to 40 of about 337,344 (303)

Contribution of anadromous fish to the diet of European catfish in a large river system [PDF]

open access: yes, 2009
Many anadromous fish species, when migrating from the sea to spawn in fresh waters, can potentially be a valuable prey for larger predatory fish, thereby efficiently linking these two ecosystems. Here, we assess the contribution of anadromous fish to the
AE Kohler   +31 more
core   +5 more sources

Molecular characterization and expression patterns of Nanog gene validating its involvement in the embryonic development and maintenance of spermatogonial stem cells of farmed carp, Labeo rohita

open access: yesJournal of Animal Science and Biotechnology, 2018
Background The homeobox containing transcription factor Nanog plays crucial roles in embryonic development/proliferation and/or maintenance of spermatogonial stem cells (SSCs) via interacting with transcription factors such as Oct4 and Sox2 in mammals ...
Swagat K. Patra   +5 more
doaj   +1 more source

Heterosis of growth trait regulated by DNA methylation and miRNA in allotriploid fish

open access: yesEpigenetics & Chromatin, 2022
Background Heterosis of growth traits in allotriploid fish has benefited the production of aquaculture for many years, yet its genetic and molecular basis has remained obscure.
Li Ren   +6 more
doaj   +1 more source

mTOR signaling pathway regulates embryonic development and rapid growth of triploid crucian carp

open access: yesAquaculture Reports, 2023
Triploid crucian carp is a new breed of aquaculture with rapid growth characteristics. However, its growth regulation mechanism has not yet been elucidated.
Zhen Huang   +10 more
doaj   +1 more source

Rapid genomic DNA variation in newly hybridized carp lineages derived from Cyprinus carpio (♀) × Megalobrama amblycephala (♂)

open access: yesBMC Genetics, 2019
Background Distant hybridization can generate changes in phenotypes and genotypes that lead to the formation of new hybrid lineages with genetic variation.
Kaikun Luo   +9 more
doaj   +1 more source

Regulation of hormonal receptors of the hypothalamic-pituitary-gonadal axis by ghrelin in ovary of grass carp (Ctenopharyngodon idella)

open access: yesAquaculture Reports, 2023
Ghrelin has been well known as an orexigenic hormone that regulates appetite and energy metabolism in animals. Recent studies imply the regulatory function of ghrelin on ovary development, however, the mechanism about the effects of ghrelin on key ...
Jiamin Pi   +7 more
doaj   +1 more source

Anadromous fish as marine nutrient vectors [PDF]

open access: yes, 2009
The tidal freshwater of Virginia supports anadromous herring (Alosa spp.) spawning runs in the spring; however, their importance as nutrient delivery vectors to the freshwater fish food web remains unknown.
Garman, Greg C.   +2 more
core  

Microneedle‐Based Biofertilizer Delivery Improves Plant Growth Through Microbiome Engineering

open access: yesAdvanced Functional Materials, EarlyView.
This figure shows how microneedles are used to deliver biofertilizers to enhance plant growth through microbial migration, metabolic reprogramming, and changes in plant endogenous microbiome. Abstract This study presents a microneedle‐based system for the delivery of rhizospheric biofertilizers into plant tissues to enhance growth.
Zhicheng Le   +14 more
wiley   +1 more source

Effects of Different Levels of Carbohydrates on Growth Performance, Hepatic and Intestinal Health, and Intestinal Microflora of Juvenile Pikeperch (Sander lucioperca)

open access: yesAquaculture Nutrition
Pikeperch (Sander lucioperca) is a species with great potential for aquaculture in Eurasian countries, while feed costs limit the scale of pikeperch farming. Adding carbohydrates to the feed as an energy source is a viable approach to reduce costs and to
Jie Zhao   +8 more
doaj   +1 more source

Photothermal Macroporous Lignin Cryogels for Off‐Grid, Continuous Atmospheric Water Collection via Interlayer Heat Recovery

open access: yesAdvanced Functional Materials, EarlyView.
Photothermal, macroporous lignin‐based cryogels are engineered to convert sunlight into low‐grade heat. Integrated as stacked beds in a drum‐type device, a thin copper interlayer transfers waste heat between beds, enabling interlayer heat recovery and continuous solar cycling.
Jie Yan   +8 more
wiley   +1 more source

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