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Start Over Subject Oligochaeta

1. A new form of raabeia-type actinosporean (Myxozoa) from the oligochaete Uncinais uncinata

Creator:
Koprivnikar, Janet and Desser, Sherwin S.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Myxozoa, Actinosporea, raabeia, Oligochaeta, and Uncinais uncinata
Language:
English
Description:
In a study of the oligochaete fauna and their actinosporean parasites in three lakes in Algonquin Park, Canada, a novel form of raabeia-type actinosporean was observed in a single specimen of Uncinais uncinata (∅ersted) (Naididae). This form differs from those previously described in its small size, and by having caudal processes that gradually widen and terminate with a single prominent branch.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. Electron microscopic study of a new microsporean Microsporidium epithelialis sp. n. infecting Tubifex sp. (Oligochaeta)

Creator:
Oumouna, Mustapha, El-Matbouli, Mansour, Rudolf W., and Bouix, Georges
Format:
print
Type:
model:internalpart and TEXT
Subject:
Microsporea, Actinosporea, ultrastructure, Oligochaeta, and Tubificidae
Language:
English
Description:
The cytology of a new microsporean parasite Microsporidium epithelialis sp. n. from the intestinal epithelial cells of the freshwater oligochaete Tubifex sp. (Tubificidae) is described. The microsporean occurred together with an actinosporean of the genus Triactinomyxon, which was found between the epithelial cells. The merogonic and sporogonie stages (mature spores included) of the microsporean parasite are monokaryotic. An individual sporophorous vesicle surrounds each spore. The fixed and stained spore has an average dimension of 1.9-2.5 x 0.9-1.2 pm. The spores are oval with a characteristic surface layer, showing ornamentation-like projections, which are in close contact to the exosporc. A short polar filament forming three to four coils traverses the polaroplast with two lamellar layers. The ultrastructure and other characteristic features of this microsporean parasite are distinct from those of the microsporean species described so far from oligochaetes.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

3. Kde všude žijí máloštětinatí opaskovci

Creator:
Schenková, Jana
Format:
print, bez média, and svazek
Type:
article, text, články, journal articles, model:article, and TEXT
Subject:
Biologické vědy, máloštětinatci, opaskovci, kroužkovci, antropogenní vlivy, znečištění životního prostředí, vodní toky, biotopy, Oligochaeta, Clitellata, Annelida, anthropogenous influences, environmental pollution, water streams, biotopes, máloštětinatí opaskovci, 2, and 57/59
Language:
Czech
Description:
Máloštětinatí opaskovci (Annelida: Clitellata) jsou jakožto významná složka permanentní fauny silně závislí na charakteru prostředí, v němž žijí. Proto výskyt určitých druhů může indikovat míru ovlivnění jejich habitatů. Článek se zabývá historií výzkumu máloštětinatých opaskovců a příklady studií této skupiny z různého prostředí, od toků téměř neovlivněných až po silně antropogenně znečištěné., Aquatic oligochaetes (Annelida: Clitellata) as an important group of permanent bottom fauna are strongly dependent on environmental characteristics of their habitats. Consequently, the occurrence of a particular species can indicate the level of environmental quality. The article describes the history of oligochaete research and presents case studies from different environments from almost natural to sites with high anthropogenic impact., and Jana Schenková.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public