Results 41 to 50 of about 2,947 (207)
A Hiatus Obscures the Early Evolution of Modern Lineages of Bony Fishes
Frontiers in Earth Science, 2021 About half of all vertebrate species today are ray-finned fishes (Actinopterygii), and nearly all of them belong to the Neopterygii (modern ray-fins). The oldest unequivocal neopterygian fossils are known from the Early Triassic.
Carlo Romano
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The evolution, structure and function of the ray finned fish (Actinopterygii) glucocorticoid receptors [PDF]
General and Comparative Endocrinology, 2017 Basal ray-finned fish (Actinopterygii) possess a single glucocorticoid receptor (GR) and when compared to the lobe-finned vertebrate (Sarcopterygii) GR possess nine additional amino acids between the zinc-finger of the DNA binding domain. A whole genome duplication event which occurred between 320 and 350MYA in the teleost lineage following the split ...
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Fish remains (Elasmobranchii, Actinopterygii) from the Late Cretaceous of the Benue Trough, Nigeria [PDF]
Journal of African Earth Sciences, 2014 Selachian and ray-finned fish remains from various Late Cretaceous localities of Nigeria are described. Each locality has yielded only a very few specimens and the diversity is therefore very low. However, some taxa are recorded for the first time in Africa.
Vullo, Romain, Courville, Philippe
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Phylogenetic Interrelationships of Ginglymodian Fishes (Actinopterygii: Neopterygii)
PLoS ONE, 2012 The Ginglymodi is one of the most common, though poorly understood groups of neopterygians, which includes gars, macrosemiiforms, and "semionotiforms." In particular, the phylogenetic relationships between the widely distributed "semionotiforms," and between them and other ginglymodians have been enigmatic.
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Fish hatchering and its effects on the morphology of Prochilodus lineatus (Actinopterygii: Prochilodontidae) [PDF]
Brazilian Journal of Biology, 2016 Abstract The fish stocking in captivity for later release into natural water bodies has historically been applied in Brazil, as a measure to mitigate impacts caused by dams. However, the released fish are adapted to the hatchery environment, which is totally different from the natural, which results in low post-release survival rates and ...
Saraiva, S. O., Pompeu, P. S.
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Update to the catalogue of South Australian freshwater fishes (Petromyzontida & Actinopterygii) [PDF]
Zootaxa, 2012 South Australia is a large Australian state (~1,000,000 km2) with diverse aquatic habitats spread across temperate to arid environments. The knowledge of freshwater fishes in this jurisdiction has advanced considerably since the last detailed catalogue of native and alien species was published in 2004 owing to significant survey and research effort ...
Hammer, M., Adams, M., Foster, R.
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Zoologia (Curitiba), 2010 Myxobolus franciscoi sp. nov. (Myxozoa: Myxosporea: Myxobolidae) is described from the "curimatá-pacú" fish, Prochilodus argenteus Spix & Agassiz, 1829 (Actinopterygii: Prochilodontidae) from the Upper São Francisco River, Brazil.
Jorge C. Eiras +2 more
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Effects of short- and long-term glucan feeding of rainbow trout (Salmonidae) on the susceptibility to Ichthyophthirius multifiliis infections [PDF]
Acta Ichthyologica et Piscatoria, 2010 Background. Various compounds are being used as immuno-stimulants in various aquaculture feed types but the importance of their prolonged use is at present unknown.
J.H. Lauridsen, K. Buchmann
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Journal of Animal Ecology, EarlyView.Trait distributions provide insight into how niches overlap within a broader trait space. By integrating individual‐level trait observations from different communities, we can explore how facets of trait dimensionality vary across environmental conditions.
Alicia McGrew +6 more
wiley +1 more source
Comprehensive phylogeny of ray-finned fishes (Actinopterygii) based on transcriptomic and genomic data [PDF]
Proceedings of the National Academy of Sciences, 2018 Significance Ray-finned fishes form the largest and most diverse group of vertebrates. Establishing their phylogenetic relationships is a critical step to explaining their diversity. We compiled the largest comparative genomic database of fishes that provides genome-scale support for previous phylogenetic results and used it to resolve ...
Min Wang +25 more
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