Results 21 to 30 of about 1,493 (191)
Fishes, 2022 Heterotis niloticus is an African species of Osteoglossiformes that presents biological peculiarities and zootechnical performances favorable for fish farming.
N’Zi Daniel Koua +5 more
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First record of Ephemeropsis, Coptoclava, Coleoptera inc. sed. and Turfanograpta from Lower Cretaceous paper-shales of the western-most site of Mongolia [PDF]
Fossil Record, 2000 Nymph-fragments (and detached cerci) of the may-fly Ephemeropsis trisetalis Eichwald and the water-beetle Coptoclava longipoda Ping, a coleopteran and a shell-fragment of the conchostracan Turfanograpta sp.
H. Jähnichen, E. Kahlert
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A new electroreceptive teleost:Xenomystus nigri (Osteoglossiformes: Notopteridae) [PDF]
Journal of Comparative Physiology ? A, 1982 The African knife fish,Xenomystus nigri, is found to be sensitive to weak electric fields by the method of averaged evoked potentials from the brain. Slow waves and spikes were recorded in or near the lateral line area of the medulla and the torus semicircularis of the mesencephalon in response to long pulses (best > 50 ms) and low frequency sine waves
Bullock, Theodore H. +1 more
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First record of Ephemeropsis, Coptoclava, Coleoptera inc. sed. and Turfanograpta from Lower Cretaceous paper-shales of the western-most site of Mongolia [PDF]
Fossil Record, 2000 Nymph-fragments (and detached cerci) of the may-fly Ephemeropsis trisetalis Eichwald and the water-beetle Coptoclava longipoda Ping, a coleopteran and a shell-fragment of the conchostracan Turfanograpta sp.
H. Jähnichen, E. Kahlert
doaj +1 more source
Exceptionally Steep Brain-Body Evolutionary Allometry Underlies the Unique Encephalization of Osteoglossiformes [PDF]
Brain, Behavior and Evolution, 2021 Brain-body static allometry, which is the relationship between brain size and body size within species, is thought to reflect developmental and genetic constraints. Existing evidence suggests that the evolution of large brain size without accompanying changes in body size (that is, encephalization) may occur when this constraint is relaxed.
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Knowledge and Management of Aquatic Ecosystems, 2020 Ornamental aquaculture is known to be one of the main sources of non-native species and Indonesia has been identified as one of the leading suppliers of these organisms worldwide.
Marková Jana +7 more
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Acta Zoologica, 2021 AbstractIn this study, we assessed the ovary structure and early oogenesis in representatives of Osteoglossomorpha, one of the most basal Teleostei groups. We aimed to perform a comparative analysis between internally fertilizing Pantodon buchholzi (Pantodontidae) and externally fertilizing Osteoglossum bicirrhosum (Osteoglossidae), Marcusenius ...
Anna M. Dymek +4 more
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Heart structure in the Amazonian teleost Arapaima gigas (Osteoglossiformes, Arapaimidae) [PDF]
Journal of Anatomy, 2018 AbstractThe fish heart ventricle has varied morphology and may have a specific morpho‐functional design in species adapted to extreme environmental conditions. In general, the Amazonian ichthyofauna undergoes constant variations in water temperature, pH and oxygen saturation, which makes these species useful for investigations of cardiac morphology ...
Mario Vitor Buzete Gardinal +6 more
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Structural diversity of olfactory organs in Osteoglossiformes
Journal of Zoology, 2020 AbstractOsteoglossomorpha, an ancient Teleostei group, exhibits many ancestral structural features. Herein, we describe the diversity in morphology of olfactory organs of air‐breathing Pantodon buchholzi, Arapaima gigas, and Gymnarchus niloticus in terms of adaptations to short ventures out of water and compare the results with the water‐breathing ...
J. Dymek, M. Kuciel, K. Żuwała
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Ichthyofaunal Diversity of Dhansiri River, Dimapur, Nagaland, India [PDF]
Check List, 2012 Northeastern India, one of the Ichthyofaunal hot spot areas of our country, is marked by the presence of varied freshwater fishes,a few adapted to torrential waterflow.
Biswajit Acharjee +3 more
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