Results 161 to 170 of about 1,218 (204)

CRYOPRESERVATION OF SALMONIFORMES SPERM: CURRENT STATUS AND PERSPECTIVES

Fisheries, 2021
Analysis of information from published sources was carried out with the aim of determining the most perspective tendencies and technological approaches in the field of research of salmoniformes sperm cryopreservation methods. Comparative evaluation of currently used methods, analysis of their effectiveness, and discussion of possibility of ...
Natalya Pronina, Konstantin Kovalev, Aleksandra Krasilnikova, Olga Dokina   +3 more
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Order Salmoniformes [PDF]

, 2019
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Adaptative Radiation of the Retina in Galaxiidae (Salmoniformes)

Australian Journal of Zoology, 1990
The retinas of seven galaxiid species collected from different habitats in Tasmania were investigated by light microscopy. There are remarkable differences between Galaxias and Paragalaxias species. The retinas of Galaxias species are characterised by a less dense retinal epithelial pigment (REP), large numbers of short and long rods, the presence of a
MA Ali, S Sakurai, SP Collin
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Comparative osteology and relationships of the Umbridae (Pisces: Salmoniformes)

Zoological Journal of the Linnean Society, 1982
The phylogenetic relationships of the five living species of umbrids are examined through a comparative osteological study based on a series of cleared-and-stained specimens of each species. The Umbridae appear to be strictly monophyletic. In addition, for 45 characters, the outgroup Esox shares one character-state with at least one umbrid species ...
M. V. H. WILSON, P. VEILLEUX
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Comparative morphometry and phenetics of the genera of esocoid fishes (Salmoniformes)

Zoological Journal of the Linnean Society, 1987
Using shape data derived from the externa] body morphometry of esocoid fishes in which the effects of size were standardized, a close relationship of Umbra and Novumbra is supported. Dallia is provisionally associated with these but some data contradicted this. Esox is distantly associated with all of these.
R. J. Beamish, M. J. Merrilees, E. J. Crossman   +2 more
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Fishes of the family Prototroctidae (Salmoniformes)

Australian Journal of Marine and Freshwater Research, 1976
The family Prototroctidae, the genus Prototroctes, and the two contained species-P. oxyrhynchus Gunther, 1870 (New Zealand) and P. maraena Gunther 1864 (south-eastern Australia and Tasmania) are described. P. oxyvhynchus is distinguished from P. maraena by much higher counts of lateral scale rows, vertebrae and gill rakers. What is known of the natural
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Ecotypes in Graylings (Thymallidae, Salmoniformes)

Russian Journal of Ecology, 2005
The ecotypic structure of two grayling species in Eurasia is considered. Based on original and published data, the development of ecological forms in water bodies of different kinds is analyzed. Parallelism in the emergence of highly similar forms in different sites of the ranges is demonstrated.
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Role of temperature and flow regulation on the Salmoniform - Cypriniform transition

Fundamental and Applied Limnology, 2001
The effects of both temperature and flow regulation on the longitudinal evolution of the fish community were studied along a section of the River Garonne. The section included an upstream zone dominated by the taxonomic order Salmoniforms, and a downstream zone dominated by Cypriniforms.
Yoric Reyjol, Puy Lim, Francis Dauba, Philippe Baran, Alain Belaud   +4 more
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Molecular phylogeny and biogeography of the Tasmanian and New Zealand mudfishes (Salmoniformes : Galaxiidae)

Australian Journal of Zoology, 1997
The phylogenetic affinities of the diadromous Tasmanian mudfish, Galaxias cleaveri , have long been problematic. Some systematists have suggested that this species is closely related to the morphologically similar but non-diadromous New Zealand mudfish genus, Neochanna , while others argued that the similarities represent convergent evolution.
J. M. Waters, R. W. G. White
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Epidermal fine structure of the teleost Esox americanus (esocidae, salmoniformes)

Journal of Ultrastructure Research, 1974
The epidermis of Esox americanus consists of filament-containing cells, secretory cells, and occasional chloride cells. The filament-containing cells are the most numerous with three distinct types belonging to basal, mid and surface layers. These cells have predominately a structural role, although the surface cells probably contribute to the ...
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