Results 61 to 70 of about 358 (172)

Redescription of Echinoderes levanderi Karling, 1954 (Kinorhyncha: Cyclorhagida) – a kinorhynch tolerant to very low salinities

open access: yesEuropean Journal of Taxonomy, 2018
The kinorhynch species Echinoderes levanderi Karling, 1954 is redescribed. The species can now be recognized by the presence of spines in middorsal positions on segments 4–8, and in lateroventral positions on segments 6–9, with lateroventral spines on ...
Martin V. Sørensen
doaj   +1 more source

The predictability of biological populations and communities: an example from the meiobenthos [PDF]

open access: yesHydrobiologia, 1986
The predictability of temporal changes was analysed in the population density of three meiobenthic copepod species, and for three parameters characterizing this community. For Paronychocamptus nanus and Tachidius discipes a large part of the variation in time scales longer than 1 year is explainable as cyclic factors. In P.
Herman, P.M.J., Heip, C.H.R.
openaire   +2 more sources

Traits mediate environmental responses of benthic ciliates in dynamic coastal habitats

open access: yesDiversity and Distributions, Volume 30, Issue 8, August 2024.
Abstract Aim Understanding how species' traits mediate environmental responses provides a mechanistic perspective on community assembly processes. Although traits that influence the response of multicellular organisms to environments have been studied, the identification of such traits in unicellular organisms, like ciliates, is underexplored.
Yuan Xu, Xinpeng Fan, Janne Soininen
wiley   +1 more source

Revision of Angursa (Arthrotardigrada: Styraconyxidae) with the description of a new species from Japan

open access: yesEuropean Journal of Taxonomy, 2019
We re-examined the type material of five of the seven described species of the marine tardigrade genus Angursa Pollock, 1979, namely, A. abyssalis Renaud-Mornant, 1981, A. bicuspis Pollock, 1979 (type species), A. capsula Bussau, 1992, A.
Shinta Fujimoto, Jesper Guldberg Hansen
doaj   +1 more source

Testing the deep‐sea glacial disturbance hypothesis as a cause of low, present‐day Norwegian Sea diversity and resulting steep latitudinal diversity gradient, using fossil records

open access: yesGlobal Ecology and Biogeography, Volume 33, Issue 7, July 2024.
Abstract Aim Within the intensively‐studied, well‐documented latitudinal diversity gradient, the deep‐sea biodiversity of the present‐day Norwegian Sea stands out with its notably low diversity, constituting a steep latitudinal diversity gradient in the North Atlantic. The reason behind this has long been a topic of debate and speculation.
Anna B. Jöst   +8 more
wiley   +1 more source

Do separated taxa react differently to a long-term salinity increase? The meiobenthos changes in Bay Sivash, largest hypersaline lagoon worldwide

open access: yesKnowledge and Management of Aquatic Ecosystems, 2019
In the world's largest hypersaline lagoon Bay Sivash, its ecosystem twice transformed from a previous state to a new one due to human intervention. Before the North Crimean Canal construction, it was hypersaline (average salinity of 140 g l−1). The canal
Shadrin Nickolai   +7 more
doaj   +1 more source

THE FIRST DATA ON THE MEIOBENTHOS OF LAKE NERO

open access: yesTransactions of Papanin Institute for Biology of Inland Waters RAS, 2020
The paper provides the first results of a study of the qualitative and quantitative structure of the community of bottom meiofauna (meiobenthos) in shallow, hypereutrophic Lake Nero (Volga River basin, Yaroslavl region, Russia). In the samples, collected in early September 2017, 106 representatives from 16 systematic groups of aquatic organisms were ...
openaire   +2 more sources

Copepoda of lowland springs: diversity patterns and integrative taxonomy of Cyclops

open access: yesJournal of Limnology
Groundwater copepods in lowland Europe remain insufficiently studied compared to those from mountainous regions. Here, we present the results of a faunistic and ecological survey of lowland springs, conducted in the context of earlier research on ...
Sabina Smolska   +4 more
doaj   +1 more source

Taxonomic Study of Free-Living Marine Nematodes in the Subgenus Tricoma (Desmoscolecida: Desmoscolecidae) from the Subtidal Zone of the East Sea, Korea, with Insights into the Ultrastructure of the Lip Region

open access: yesJournal of Marine Science and Engineering
This study provides a taxonomic analysis of three newly discovered species of free-living marine nematodes in the subgenus Tricoma from the East Sea, Korea. Tricoma (Tricoma) polyringulata sp. nov. is characterized by its relatively small body size, with
Hyo Jin Lee, Heegab Lee, Hyun Soo Rho
doaj   +1 more source

Bottom meiofauna of highly mineralised rivers in the Eltonsky Nature Park (Russia)

open access: yesNature Conservation Research: Заповедная наука, 2019
As established by numerous research the community of bottom meiofauna (meiobenthos) plays an important role in the diversity, quantitative characteristics and trophic relationships of the hydrofauna, as well as in the general flow of matter and energy of
Vladimir A. Gusakov
doaj   +1 more source

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