geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Etude d'une riviere calcaire salmonicole. Phenologie des ephemeropteres


, : Etude d'une riviere calcaire salmonicole. Phenologie des ephemeropteres. Bulletin and Annales de la Societe Royale Belge d'Entomologie, 1214-6: 153-167

The phenology of 11 Ephemeropteran species in a trout stream, the Samson, is described from adults caught during four years (1981-1984). The results are compared with these from other European countries and connected with the life cycles of the species. A great variability appeared between the flight periods; some species fly during several months (Baetis scambus, Ephemerella ignita,...), even almost the whole year (B. rhodani) whereas the adult stages of other species occur during a short period only (one month in E. danica and E. major). The causes of those strategies are discussed. The geographic variations essentially affect the length of the flight period which can be connected with the thermal conditions during winter (in Baetis rhodani) while the emergence type (synchronized or dispersed) seems a specific characteristic. The egg-laying behaviour is also observed in several species and it shows a great variability between the different species.

US$29.90


Other references

Sadoff J.C., 1988: Expression of cloned pseudomonas aeruginosa 1244 pilin gene in pseudomonas aeruginosa. Abstracts Of The Annual Meeting Of The American Society For Microbiology:

Tatematsu M.; Mera Y.; Ito N.; Satoh K.; Sato K., 1985: Relative merits of immunohistochemical demonstrations of placental a b and c forms of glutathione s transferase and histochemical demonstration of gamma glutamyltransferase as markers of altered foci during liver carcinogenesis in rats. The values of the immunohistochemical demonstrations of glutathione S-transferases (GSTs) A, B, C and P and histochemical demonstrations of .gamma.-glutamyl transpeptidase (.gamma.-GT) for detection of enzyme altered foci in F344 rat liver were co...

Thompson, D.F.; Church, C.O., 2001: Prussian blue for treatment of radiocesium poisoning. Prussian blue is a crystal lattice that exchanges potassium for cesium at the surface of the crystal. When given orally, it binds cesium that is secreted in the gut before it can be reabsorbed. Data suggest that in humans, Prussian blue can reduce...

Falade, J.A., 1981: Varietal differences in tree size and yield of cashew (Anacardium occidentale L.) in Nigeria. Trees on one plot in western and one plot in eastern Nigeria were divided into the following four varieties and two subvarieties on the basis of pseudofruit (receptacle) colour (red vs. yellow) and pseudofruit shape (round vs. elongated): Red Roun...

Leyvraz, A.Muser., 2016: Quickly find the right solution--with specialists in behavior medicine. Schweizer Archiv für Tierheilkunde 157(11): 571, 591-571, 591

Vdovichenko, L.M., 1978: Some properties of lactate dehydrogenase of brain mitochondria. Lactate dehydrogenase activity in rat brain mitochondria isolated from the ficoll density gradient accounts for 5% of the enzyme activity determined in cytoplasm. More than 80% of this activity is found in the intermembrane space of mitochondria....

Geddes, C.D.; Parfenov, A.; Lakowicz, J.R., 2003: Photodeposition of silver can result in metal-enhanced fluorescence. Chemically deposited silver particles are widely used for surface-enhanced Raman scattering (SERS) and more recently for surface-enhanced fluorescence (SEF), also known as metal-enhanced fluorescence (MEF). We now show that metallic silver deposit...

Sauder, C.; Porterfield, P.; Shalansky, K.F.; Tong, K.L., 1999: Subcutaneous administration of loxapine. American Journal of Health-System Pharmacy 56(12): 1259-1261

Saraf, M.; Soni, N.K., 1983: Adapted tolerance to tetra methyl thiuram disulfide in Botryodiplodia theobromae Pat. Griff et Maubl. An apple isolate of the fungus was adapted to grow on 6 times the normally lethal conc. of TMTD (thiram) i.e. at 6000 micro g/ml. The slope of dosage-response curve of thiram for the adapted culture was higher than that for the parent culture. Ada...

Azeki, I.; Sakamoto, K., 1974: Problems of the increasing average age of tuberculosis patients. Nursing Technique 20(10): 150-155