Results 171 to 180 of about 1,744 (191)
Some of the next articles are maybe not open access.
Neogene and Pleistocene sturgeon (Acipenseriformes, Acipenseridae) remains from southeastern Europe
Journal of Vertebrate Paleontology, 2017Citation for this article: Kovalchuk, O. M., and E. J. Hilton. 2017. Neogene and Pleistocene sturgeon (Acipenseriformes, Acipenseridae) remains from southeastern Europe. Journal of Vertebrate Paleontology. DOI: 10.1080/02724634.2017.1362644.
Oleksandr M. Kovalchuk, Eric J. Hilton
openaire +1 more source
Comparative Biochemistry and Physiology Part D: Genomics and Proteomics, 2010
Sturgeon and paddlefish (Acipenseriformes), the source of roe consumed as caviar, are a unique and commercially valuable group of ancient fishes. In this study, comparative proteomics was used to analyze protein profiles of spermatozoa from five sturgeon species and one paddlefish: Siberian sturgeon (Acipenser baerii), sterlet (A.
Ping, Li +5 more
openaire +2 more sources
Sturgeon and paddlefish (Acipenseriformes), the source of roe consumed as caviar, are a unique and commercially valuable group of ancient fishes. In this study, comparative proteomics was used to analyze protein profiles of spermatozoa from five sturgeon species and one paddlefish: Siberian sturgeon (Acipenser baerii), sterlet (A.
Ping, Li +5 more
openaire +2 more sources
Nematocysts of Polypodium hydriforme, a cnidarian parasite of acipenseriform fishes
Hydrobiologia, 2004Structure of nematocysts from Polypodium hydriforme was studied by scanning and transmission electron microscopy. Two nematocyst types were observed: holotrichous isorhizas with minute spines, and true atrichous isorhizas. Among holotrichous isorhizas four morphological categories were distinguished based on differences in morphology of their ...
Alexey Ibragimov, Ekaterina Raikova
openaire +1 more source
Journal of Morphology, 1994
AbstractThe position and structure of the olfactory organ and its openings vary among actinopterygians. The anterior nasal opening is a simple perforation in the skin in many extant actinopterygians (e.g., acipenseriforms, lepisosteids, and primitive Recent teleosts) and represents the primitive condition.
Xin-Yu, Chen, Gloria, Arratia
openaire +2 more sources
AbstractThe position and structure of the olfactory organ and its openings vary among actinopterygians. The anterior nasal opening is a simple perforation in the skin in many extant actinopterygians (e.g., acipenseriforms, lepisosteids, and primitive Recent teleosts) and represents the primitive condition.
Xin-Yu, Chen, Gloria, Arratia
openaire +2 more sources
Age and biogeography of major clades in sturgeons and paddlefishes (Pisces: Acipenseriformes)
Molecular Phylogenetics and Evolution, 2007Chinese Acad Sci, Inst Hydrobiol, Lab Fish Phylogenet & Biogeog, Wuhan 430072, Peoples R China; Inst Zoo & Wildlife Res, Dept Evolutionary Genet, D-10315 Berlin, Germany; Chinese Acad Fisheries Sci, Yangtze River Fisheries Res Inst, Minist Agr China, Key Lab Frehwater Fish Germplasm Resources & Biot, Jinzhou 434000, Peoples R China; Univ Liege, Lab ...
Zuogang, Peng +5 more
openaire +2 more sources
Biology and Culture of Sturgeon Acipenseriformes
1985The annual world sturgeon catch has ranged from 20,000 to 40,000 metric tons during the past fifty years and, as such, has been less significant than the catch of many other commercial fisheries. However, because of the sturgeon’s high value as a food and game fish, this fishery has far exceeded the importance and monetary returns of many others.
openaire +1 more source
2009
Age and growth rate of Black Sea starry sturgeon (Acipenser stellatus, Pallas 1771) were studied based on analysis of pectoral fin spine sections internal structure. Time of annual growth marks formation was determined. Parameters of von Bertalanffy growth equation were estimated.
openaire +1 more source
Age and growth rate of Black Sea starry sturgeon (Acipenser stellatus, Pallas 1771) were studied based on analysis of pectoral fin spine sections internal structure. Time of annual growth marks formation was determined. Parameters of von Bertalanffy growth equation were estimated.
openaire +1 more source
Polyploidization by reticular speciation in Acipenseriform evolution: a working hypothesis
Journal of Applied Ichthyology, 1999Summary A working hypothesis to explain the polyploid evolution of Acipenserids as a result of reticular speciation is presented. It is assumed that the process of polyploidization is a result of multiple origin of poly-chromosomal sturgeon species and different DNA content despite similar karyotypes and low rate of mtDNA evolution.
openaire +1 more source
Genetics of North American Acipenseriformes
2006Michael R. Robinson, Moira M. Ferguson
openaire +1 more source