Results 231 to 240 of about 31,099 (303)

High‐throughput multispecies quantitative polymerase chain reaction assays to study the effects of acute thermal stress in three species of Acipenser sturgeon

open access: yesJournal of Fish Biology, EarlyView.
Abstract Fishes experience thermal stress in their natural environment that can be caused by natural or anthropogenic factors and can directly affect their physiology. In this study, we developed a multispecies OpenArray™ qPCR (quantitative polymerase chain reaction) ‘chip’ to measure the effects of acute thermal stress on the mRNA response of ...
Hossein Haghighi   +6 more
wiley   +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

Developmental stage ordering yields greater cranial mineralization sequence resolution than embryo size or days since oviposition: A case study using the gekkotan Eublepharis macularius (Blyth, 1854)

open access: yesJournal of Anatomy, EarlyView.
We employ a set of leopard gecko embryos for which size, day of development, and developmental stage are known to assess which timetable accords with the greatest resolution of cranial mineralization events. Developmental staging yielded the best outcome. Abstract Mineralization sequences of cranial elements (often referred to as ossification sequences)
Patrick A. D. Wise   +2 more
wiley   +1 more source

Computed tomography reveals the endocranial anatomy of Crocodylia: Implications for phylogenetic relationships and ecomorphological convergence across Crocodylomorpha

open access: yesJournal of Anatomy, EarlyView.
The evaluation of the endocranial anatomy of 43 crocodylian species reveals several differences, including variation in the curvature of the encephalic endocast, the size of the endosseous labyrinth and paratympanic sinuses, and the presence of additional snout sinuses.
Paul M. J. Burke, Philip D. Mannion
wiley   +1 more source

L‐Glutamine Plus L‐Glutamic Acid Enhances Antioxidant Status and Ammonia Toxicity Resilience, Upregulates Interleukin IL‐10 Gene, and Improves Gut Microbiota and Survival in Juvenile Nile Tilapia

open access: yesJournal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT Glutamine (Gln) and glutamic acid (Glu) are the most abundant free amino acids (AAs) in the fish body. Although classified as non‐essential AAs, their supplementation can be a strategy to optimize the growth performance and health of fish.
Cristiana Leonor da Silva Carneiro   +9 more
wiley   +1 more source

Influence of Artificial Light at Night on Thyroid Gland Histology in <i>Triturus</i> Newts (Urodela, Salamandridae). [PDF]

open access: yesAnimals (Basel)
Ajduković M   +5 more
europepmc   +1 more source

The neural mechanisms supporting the rise and fall of maternal aggression. [PDF]

open access: yesNature
Yamaguchi T   +9 more
europepmc   +1 more source

Recurrent Alternate Parthenogenesis in the Common Smooth-Hound Shark (<i>Mustelus mustelus</i>) with Additional Cases and Further Evidence for a Putative Adaptive Reproductive Strategy. [PDF]

open access: yesAnimals (Basel)
Sciuto S   +11 more
europepmc   +1 more source

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