Results 181 to 190 of about 6,235 (230)
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Biological Reviews, 1947
SummaryOligochaete nephridia are now classified into holonephridia and meronephridia; the former are large and occur as a pair per segment, while the latter are small and are numerous in each segment. The meronephridia are derived from holonephridia by a process of branching and multiplication either at an early or a late stage of development.
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SummaryOligochaete nephridia are now classified into holonephridia and meronephridia; the former are large and occur as a pair per segment, while the latter are small and are numerous in each segment. The meronephridia are derived from holonephridia by a process of branching and multiplication either at an early or a late stage of development.
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Journal of Cell Science, 1934
ABSTRACT I Regard the opportunity to study the Oligochaeta collected by the members of the Oxford University Expedition to Sarawak as a bequest of my late colleague and friend Dr. John Stephenson, London. He would have been more competent to do this work, but fate has taken him prematurely from his work-table.
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ABSTRACT I Regard the opportunity to study the Oligochaeta collected by the members of the Oxford University Expedition to Sarawak as a bequest of my late colleague and friend Dr. John Stephenson, London. He would have been more competent to do this work, but fate has taken him prematurely from his work-table.
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Assimilation by Aquatic Oligochaeta
Internationale Revue der gesamten Hydrobiologie und Hydrographie, 1979AbstractAquatic oligochaetes selectively ingest material from sediments given as food. Determinations of the quantity of organic material presented, left in the residue, and voided as feces enabled estimation of assimilation. These figures were not significantly different from those obtained by summing growth as observed in the experiment with ...
Ralph O. Brinkhurst, Merelene J. Austin
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2003
Abstract Among oligochaetes bioindicators and -monitors have been identified at all levels of biological organization, from the molecular to the ecosystem level. For these various levels an overview is given of current and developing biomonitors and -indicators.
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Abstract Among oligochaetes bioindicators and -monitors have been identified at all levels of biological organization, from the molecular to the ecosystem level. For these various levels an overview is given of current and developing biomonitors and -indicators.
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2023
In the gill cavity of Astacus leptodactylus leptodactylus from the water bodies of the Dnieper and Southern Bug basins Oligochaeta are found which are referred to the new species of the family Aeolosomalidae - Aeolosoma markewitschii sp. n. They affect A. I. leptodactylus most often in the Kakhovka reservoir (91.7%) in 1974.
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In the gill cavity of Astacus leptodactylus leptodactylus from the water bodies of the Dnieper and Southern Bug basins Oligochaeta are found which are referred to the new species of the family Aeolosomalidae - Aeolosoma markewitschii sp. n. They affect A. I. leptodactylus most often in the Kakhovka reservoir (91.7%) in 1974.
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Published as part of Singh, Ankit Kumar & Khanal, Laxman, 2025, Annotated Checklist of the Earthworms (Annelida: Clitellata: Megadrili) of Nepal, pp.
Singh, Ankit Kumar, Khanal, Laxman
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Singh, Ankit Kumar, Khanal, Laxman
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2021
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Oligochaeta (Annelida, Oligochaeta) in the Curonian Lagoon of the Baltic Sea
Inland Water Biology, 2015The species composition of Oligochaeta (Annelida) has been studied in the Russian part of the Curonian Lagoon. In the contact zone and in the open waters, 40 out of 42 species known to inhabit the Lagoon are detected. Gen. Nais is the most abundant in resident species, being represented by ten different species.
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Freshwater Oligochaeta in Canada
Canadian Journal of Zoology, 1978Seventy-nine of the total 136 American species of aquatic oligochaetes found in fresh water have been reported from Canada. Specaria fraseri and Ilyodrilus mastix are species new to science. Other species are recorded for the first time in Canada or in British Columbia. The Canadian species are listed by province.
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2002
Freshwater oligochaet worms are plain-looking animals. They can look like ordinary earthworms but more often they are much thinner and shorter. They are all segmented, and if you use a microscope you can observe short bristles and hairs on each segment.
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Freshwater oligochaet worms are plain-looking animals. They can look like ordinary earthworms but more often they are much thinner and shorter. They are all segmented, and if you use a microscope you can observe short bristles and hairs on each segment.
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