Results 31 to 40 of about 95 (80)

Ultrastructural observations of the testicular epithelium and spermatozoa of Pseudochordodes bedriagae (Gordiida, Nematomorpha)

open access: yesCell and Tissue Research, 2005
Two questions are of interest concerning the male reproductive system in Gordiida: (1) is the epithelium surrounding the testis continuous or discontinuous and (2) is the type of spermatozoon as described at the transmission electron-microscopical level for the two species of Gordius typical for all Gordiida?
de Villalobos, Leonor Cristina   +3 more
openaire   +3 more sources

Susceptibility of preparasitic stages of Chordodes nobilii (Gordiida, Nematomorpha) to the fungicide carbendazim

open access: yesJournal of Helminthology, 2014
AbstractWe evaluated the effect of carbendazim on non-target organisms using the parasite Chordodes nobilii as a test organism. The Gordiida act as a link between freshwater and terrestrial ecosystems; and C. nobilii, a neotropical representative species of this group, has been shown to be sensitive to other contaminants even at environmentally ...
Achiorno, Cecilia Luján   +2 more
openaire   +4 more sources

Revision of the genus Beatogordius (Gordiida, Nematomorpha): II. South american species with description of two new species [PDF]

open access: yesMemórias do Instituto Oswaldo Cruz, 2003
Seven species of Beatogordius (Nematomorpha) have been reported from South America. A reinvestigation could not reproduce a number of determinations indicated in the literature. B. deshayesi has been a misinterpretation and the status of B. irregularis appears to be very uncertain, because no generic characters could be found.
Cristina de Villalobos   +2 more
openaire   +5 more sources

Scanning electron microscopy of Chordodes moutoni Camerano, 1895 (Gordiida, Nematomorpha)

open access: yesZootaxa, 2005
Taxonomic characters of both male and female horse-hair worms Chordodes moutoni Camerano, 1895 (Nematomorpha) are re-described using scanning electron microscopy. The features are compared with the original description. C. moutoni cuticle has five different areolar types in male while female have six types of areoles.
Zanca, Fernanda Mariel   +1 more
openaire   +3 more sources

Larval survival strategy during winter of Chordodes nobilii Camerano, 1901 (Gordiida, Nematomorpha) [PDF]

open access: yesActa Parasitologica, 2007
AbstractThere are numerous open questions concerning the life cycle of Gordiida (Nematomorpha), especially about egg development and viability of larvae during winter, when the temperature of freshwater environments where they inhabit is low. On the basis of experimental studies we demonstrate that egg development of Chordodes nobilii takes 20–25 days ...
Zanca, Fernanda Mariel   +2 more
openaire   +2 more sources

Epeorus (Caucasiron) turcicus Hrivniak & Sroka & Türkmen & Godunko & Kazanci 2019, sp. nov.

open access: yes, 2019
Epeorus (Caucasiron) turcicus Hrivniak, Türkmen & Kazancı, sp. nov. (Figs 1–18) Type material (bold numbers in parentheses correspond to the localities in Fig. 20).
Sroka, Pavel   +4 more
core   +1 more source

Redescription and new records of freshwater Nematomorpha (Gordiida) from Chile, with the description of two new species

open access: yesRevista chilena de historia natural, 2005
Hasta el momento solo han sido citadas para Chile cuatro especies de Gordiida (Nematomorpha). En este trabajo se describen dos especies nuevas, Gordionus enigmaticus y Gordius austrinus. Gordionus enigmaticus se caracteriza por la variacion en la forma de las areolas a lo largo del surco longitudinal ventral y porque en la region pre-cloacal del ...
DE VILLALOBOS, CRISTINA   +2 more
openaire   +3 more sources

Chordodes mizoramensis (Nematomorpha, Gordiida), a new species of horsehair worm from Mizoram, North-East India

open access: yesZooKeys, 2011
Chordodes mizoramensis, a new species of freshwater gordiid horsehair worm, is described from Mizoram, NE India on the basis of scanning electron microscopic and morphometric studies. The new species can be distinguished from its congeners in that the apical filaments of the crowned areoles are branched several times, a pattern that has not been ...
Schmidt-Rhaesa,Andreas, Lalramliana,.
openaire   +6 more sources

Susceptibility of Chordodes nobilii (Gordiida, Nematomorpha) to three pesticides: Influence of the water used for dilution on endpoints in an ecotoxicity bioassay

open access: yesEnvironmental Pollution, 2018
The increased use of pesticides during recent years necessitates a reevaluation of the effect of those compounds by extending the range of nontarget species commonly used in risk assessment. In the present work, we thus determined the impact of the pesticides glyphosate, carbendazim, and malathion on the parasite Chordodes nobilii in both natural and ...
Achiorno, Cecilia Luján   +2 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy