Scanning electron microscope observations on the monogenean parasite Paraquadriacanthus nasalis from the nasal cavities of the freshwater fish Clarias gariepinus in Egypt with a note on some surface features of its microhabitat

2011 ◽  
Vol 110 (5) ◽  
pp. 1687-1693
Author(s):  
Safaa Zaky Arafa
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Freshwater Fish ◽  
Clarias Gariepinus ◽  
Monogenean Parasite ◽  
Surface Features ◽  
Nasal Cavities ◽  
Scanning Electron

Glugea hertwigi. [Descriptions of Fungi and Bacteria].

2019 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
Electron Microscope ◽  
North America ◽  
Scanning Electron Microscope ◽  
Freshwater Fish ◽  
Rough Surface ◽  
Geographical Distribution ◽  
Fish Parasite ◽  
Brackish Waters ◽  
The Family ◽  
Scanning Electron

Abstract This article describes the morphology, morphometrics, and geographical distribution of the freshwater fish parasite Glugea hertwigi infecting fish of the family Osmeridae (smelts) in freshwater of north temperate to boreal Europe and North America and nearby seas and brackish waters. Using a scanning electron microscope, spores of this species have a rough surface with loose folds and longitudinal wrinkles. This distinguishes them from spores of G. anomala. This parasite can be found in Canada, USA, Finland, Germany, and Russia.

Glugea anomala. [Descriptions of Fungi and Bacteria].

2019 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Freshwater Fish ◽  
Rough Surface ◽  
Geographical Distribution ◽  
Central Portion ◽  
Fish Parasite ◽  
Scanning Electron

Abstract This article describes the morphology, morphometry, and the geographical distribution of the freshwater fish parasite, Glugea anomala. Infections resulted in tumours (also known as xenomas), mainly in the central portion of lateral flank musculature, under the host skin and in the intestines, tumours filled with spores, spores colourless or nearly so. Using a scanning electron microscope, spores of G. anomala species have a highly rugose surface. This distinguishes them from spores of G. plecoglossi which are smooth rugose, and from spores of G. hertwigi which have a rough surface with loose folds and longitudinal wrinkles. This parasite could be found in Canada, USA, Belgium, France, Germany, Poland, Russia, Sweden, and UK.

Introductory Study of Scanning Electron Microscopy of Elytral Fragments of Stored Product Beetles

1974 ◽  
Vol 57 (6) ◽  
pp. 1235-1247
Author(s):  
Paris M Brickey ◽  
John S Gecan
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Light Microscope ◽  
Surface Features ◽  
3 Dimensional ◽  
Scanning Electron

Abstract Eleven stored product beetles were examined for surface features of the beetle elytron, using a scanning electron microscope. The 3 characteristics, sculpturing pattern, setae, and setal pits, were well defined and could be used to distinguish the species examined. The scanning electron microscope can give 3-dimensional images at magnifications up to 20,000 ×, in contrast with the light microscope which has a maximum magnification of 1000 ×.

A Comparison of TEM and SEM Fractography

1970 ◽  
Vol 28 ◽  
pp. 398-399
Author(s):  
James L. Hubbard
Keyword(s):  
Electron Microscope ◽  
Fracture Surface ◽  
Scanning Electron Microscope ◽  
Stress Corrosion ◽  
Surface Features ◽  
Fracture Surfaces ◽  
Mental Picture ◽  
Scanning Electron

For many years now, metallurgists have been using replica techniques for electron micrographic studies of the fracture surfaces of metals. The general features which are indicative of a certain mode of fracture, such as fatigue, overstress, or stress corrosion, have become quite familar in a wide variety of alloys. Although replicas are subject to many artifacts these features are usually recognized as such and disregarded in the analysis of the surface. Also since negative replicas are generally used one must reverse his perspective in order to obtain a true mental picture of the fracture surface.With the scanning electron microscope, micrographs of such samples can now be taken directly with no surface replication or preparation involved. The scanning micrographs, while limited in resolution, present a picture not only true to the surface but with a stereo perspective with which one can relate the surface features to reality.

Height measurements of surface features with the scanning electron microscope

Metallography ◽  
1977 ◽  
Vol 10 (2) ◽  
pp. 161-169
Author(s):  
J.K. Maurin ◽  
R.E. Allred
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Surface Features ◽  
Scanning Electron
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