Results 101 to 110 of about 84,077 (281)

Induction of dark-adaptive retinomotor movement (cell elongation) in teleost retinal cones by cyclic adenosine 3,5-monophosphate. [PDF]

open access: yes, 1982
In the teleost retina, the photoreceptors and retinal pigment epithelium (RPE) undergo extensive movements (called retinomotor movements) in response to changes in light conditions and to an endogenous circadian rhythm.
BURNSIDE, Beth   +3 more
core  

One number to rule them all: The Wildlife Sperm Index for standardized gamete assessment

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract In wildlife conservation, breeding programmes focused on reintroduction are critical to recovering endangered species. Assisted reproductive technologies (ARTs) and biobanking play pivotal roles in these efforts but depend on high‐quality gametes.
Leah Jacobs   +4 more
wiley   +1 more source

Metrics, scales, and correlates of intraspecific variation in hypoxia tolerance in fishes

open access: yesFrontiers in Fish Science
The extent of aquatic hypoxia (low dissolved oxygen) has increased in recent times and now threatens aquatic habitats worldwide. Here, we review intraspecific variation in hypoxia tolerance in fish on various scales: geographic variation among ...
Courtney H. Babin, Bernard B. Rees
doaj   +1 more source

Divergent evolution of two corticotropin-releasing hormone (CRH) genes in teleost fishes

open access: yesFrontiers in Neuroscience, 2015
Genome duplication, thought to have happened twice early in vertebrate evolution and a third time in teleost fishes, gives rise to gene paralogs that can evolve subfunctions or neofunctions via sequence and regulatory changes.
Brian P. Grone, Karen P. Maruska
doaj   +1 more source

Intracellular interferons in fish : a unique means to combat viral infection [PDF]

open access: yes, 2013
Peer reviewedPublisher ...
A Lopez-Munoz   +45 more
core   +3 more sources

Luteinizing hormone receptor knockout mouse: What has it taught us?

open access: yesAndrology, EarlyView.
Abstract Luteinizing hormone (LH), along with its agonist choriongonadotropin (hCG) in humans, is the key hormone responsible for the tropic regulation of the gonadal function. LH and hCG act through their cognate receptor, the luteinizing hormone/choriongonadotropin receptor (LHCGR; more appropriately LHR in rodents lacking CG), located in the testis ...
Ilpo T. Huhtaniemi
wiley   +1 more source

The Goldfish as a Model for Studying Neuroestrogen Synthesis, Localization, and Action in the Brain and Visual System [PDF]

open access: yes, 2011
Organizational and activational effects of estrogen (E) in the central nervous system (CNS) are exerted directly by circulating E and indirectly after aromatization of circulating androgen to E in the brain itself. Understanding an environmental chemical'
Betka, M., Callard, G. V., Kruger, A.
core   +1 more source

NFAT5 genes are part of the osmotic regulatory system in Atlantic salmon (Salmo salar) [PDF]

open access: yes, 2016
Acknowledgements This study was supported by a grant from the Biotechnology and Biological Sciences Research Council (BBSRC, BB/H008063/1), UK to DGH and SAM. Funding also came from Research Council Norway for project number 241016 for DGH and EJ.
Hazlerigg, David G   +4 more
core   +2 more sources

Integrating Sr isotopes, microchemistry, and genetics to reconstruct Salmonidae species and life history

open access: yesArchaeometry, EarlyView.
Abstract Recent approaches to fisheries research emphasize the importance of the coproduction of knowledge in building resilient and culturally mindful fisheries management frameworks. Despite widespread recognition of the need for Indigenous knowledge and historical reference points as baseline data, archaeological data are rarely included in ...
Ross Salerno   +9 more
wiley   +1 more source

Sobrevivência de alevinos de Jundiá (Rhamdia quelen Quoy & Gaimard, 1824) à variação de salinidade da água Survival of fingerlings of the Jundiá (Rhamdia quelen Quoy & Gaimard, 1824) to changes on water salinity

open access: yesCiência Rural, 1999
O objetivo deste trabalho foi testar a sobrevivência de alevinos de jundiá a diferentes concentrações de salinidade (sal marinho comum e água do mar), pois o sal é indicado no tratamento de algumas doenças e também para reduzir o estresse durante o ...
Maria Ignez Marchioro   +1 more
doaj   +1 more source

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