Results 31 to 40 of about 498 (145)

Reproductive organs and spermatogenesis of the peculiar spermatozoa of the genus Kryptodasys (Gastrotricha, Macrodasyida), with an appraisal of the occurrence and origin of the tail‐less spermatozoa in Gastrotricha

open access: yesJournal of Zoological Systematics and Evolutionary Research, Volume 59, Issue 8, Page 1673-1688, November 2021., 2021
Aflagellate spermatozoa in two species of Kryptodasys are reported. Their ultrastructure shows common features, which appear peculiar to the genus and different from those of male gametes of Dolichodasys, the only other macrodasyidan genus known to have aflagellate sperm.
Loretta Guidi   +3 more
wiley   +1 more source

Seasonal turnover in community composition of stream‐associated macroinvertebrates inferred from freshwater environmental DNA metabarcoding

open access: yesEnvironmental DNA, Volume 3, Issue 4, Page 861-876, July 2021., 2021
Macroinvertebrate communities are crucial for biodiversity monitoring and assessment of ecological status in stream ecosystems. Here, we use environmental DNA metabarcoding of filtered water samples collected in both spring and autumn from five streams in Denmark to address seasonal turnover in community composition of stream macroinvertebrates.
Mads Reinholdt Jensen   +6 more
wiley   +1 more source

One new species and records of Ichthydium Ehrenberg, 1830 (Gastrotricha: Chaetonotida) from Sweden with a key to the genus

open access: bronzeZootaxa, 2009
The freshwater gastrotrich fauna of Sweden is poorly known. Only seven species of freshwater gastrotrichs have been reported so far. This paper is the first in a series of contributions about the Swedish freshwater gastrotrich fauna. Here we describe one new species, Ichthydium skandicum n. sp., from Jämtland, northern Sweden.
Tobias Kånneby   +2 more
openalex   +6 more sources

First record of <I>Chaetonotus</I> (<I>Primochaetus</I>) <I>heideri</I> (Gastrotricha, Chaetonotida) from India

open access: bronze, 2023
Krishnan, Sreerag, Ghosh, Arnab, Bharti, Daizy, Todaro, M. Antonio, Kumar, Santosh (2023): First record of Chaetonotus (Primochaetus) heideri (Gastrotricha, Chaetonotida) from India.
Sreerag Krishnan   +4 more
openalex   +3 more sources

Chaetonotidae Gosse 1864

open access: yes, 2013
Published as part of Suzuki, Takahito G., Maeda, Masako & Furuya, Hidetaka, 2013, Two new Japanese species of Gastrotricha (Chaetonotida, Chaetonotidae, Lepidodermella and Dichaeturidae, Dichaetura), with Comments on the Diversity of Gastrotrichs in Rice Paddies, pp. 229-239 in Zootaxa 3691 (2) on page 230, DOI: 10.11646/zootaxa.3691.2.3, http://zenodo.
Suzuki, Takahito G.   +2 more
openaire   +3 more sources

Spatio-temporal changes in the abundance of the populations of the gastrotrich community in a shallow lake of tropical Africa [PDF]

open access: yes, 2007
Studies on the biodiversity and population dynamics of freshwater planktonic Gastrotricha have been carried out in conjunction with a physical–chemical analysis of the water in the Yaounde Municipal Lake (Cameroon, Central Africa) over a 14 months period
Boutin, Claude   +7 more
core   +1 more source

A Comparison of Intertidal Metazoan Biodiversity Between Previously Oiled Sheared and Intact Marsh Margins and Between Multiple Salinity Zones in the Coastal Marshes of Louisiana [PDF]

open access: yes, 2021
Marshes in Louisiana are under threat from numerous natural and anthropogenic sources. A consequence of these threats are sheared marsh margins, which result from the impact of storm surge on previously oiled, weakened marsh. These conditions occurred in
Rayle, Patrick M
core   +2 more sources

Chaetonotida Remane 1925

open access: yes, 2013
Published as part of Kånneby, Tobias, 2013, New species and records of freshwater Chaetonotus (Gastrotricha: Chaetonotidae) from Sweden, pp.
Kolicka, Małgorzata   +3 more
openaire   +5 more sources

A new marine gastrotrich from the State of São Paulo (Brazil), with a key to species of Pseudostomella (Gastrotricha, Thaumastodermatidae) [PDF]

open access: yes, 2012
In previous papers, faunistic and preliminary taxonomic data on the gastrotrich communities along the coastline of the Brazilian states of São Paulo and Rio de Janeiro were reported; among the over 40 records, the occurrence of several species new to ...
TODARO, Mary Antonio Donatello
core   +2 more sources

Confocal Laser Scanning Microscopy Applied to a New Species Helps Understand the Functioning of the Reproductive Apparatus in Stylet-Bearing Urodasys (Gastrotricha: Macrodasyida) [PDF]

open access: yes, 2023
Gastrotrichs are highly diverse and abundant in all aquatic ecosystems; however, they are often overlooked. During a biodiversity survey in Sardinia (Italy), a new species of gastrotrich herein described was discovered.
Cesaretti, Agata   +2 more
core   +1 more source

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