Hosted by the usgs core science analytics and synthesis. Oil decontamination of bottom sediments using limnodrilus hoffmeisteri oligochaeta. Functional beta diversity was significantly positively correlated with taxonomic beta diversity, while functional beta diversity was on average lower. Population structure and secondary productivity of limnodrilus hoffmeisteri claparede and branchiura sowerbyi beddard in the profundal zone of lake naivasha, kenya phil raburu1, kenneth m. Page designed through the cooperative efforts of interagency itis teams. Distribution and diversity of aquatic oligochaeta in small. Limnodrilus hoffmeisteri is a small, thin worm about 2035 mm in length. Limnodrilus hoffmeisteri is a segmented oligochaete worm with tapering end and typical body length of 2540 mm. An limnodrilus hoffmeisteri in nahilalakip ha genus nga limnodrilus, ngan familia nga tubificidae. This volume contains selected papers from the 9th symposium on aquatic oligochaeta, 610 october 2003, wageningen, the netherlands. The ratio of setal upper tooth length to lower tooth length, inl.
Personal care products are widely used in our daily life in considerable quantities and discharged via the downthedrain route to aquatic environments, resulting in potential risks to aquatic organisms. Pdf the infection by limnodrilus hoffmeisteri clapar. It has a simple conical shaped head without eyespots and a long cylindrical body with 5595 segments. Molecular systematics of limnodrilus annelida, clitellata. Occurrence of peritrich ciliates on the limnic oligochaete limnodrilus hoffmeisteri oligochaeta, tubificidae in the neotropics. Pdf the effect of temperature on the reproduction of. Infection of oligochaetes, limnodrilus hoffmeisteri. The relationships between land use types, water and sediment parameters, and macrobenthos community structures in the upper and middle reaches of the fenhe river and urbanization intensity were studied. Tubificidae article pdf available in zoologia curitiba impresso 261 march 2009 with 105 reads. Files are available under licenses specified on their description page. Pyrene bioaccumulation, effects of pyrene exposure on. Help pages, faqs, uniprotkb manual, documents, news archive and biocuration projects. Tubificid worms made up the majority component of aquatic oligocheata in investigated area of the river specially limnodrilus spp.
Read temporal dynamics of microcystins in limnodrilus hoffmeisteri, a dominant oligochaete of hypereutrophic lake taihu, china, environmental pollution on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. The worm appeared red in colour, owing to the possession of the respiratory pigment haemoglobin. Within this diverse group, limnodrilus hoffmeisteri claparede. As a result of united states superfund legislation, a.
Effects of species interactions on the survival and. While every effort has been made to provide the most reliable and uptodate information available, ultimate legal requirements with respect to species are contained in. The oligochaete limnodrilus hoffmeisteri cleparede was exposed to sediment. Influence of body weight and substrate granulometry on the. Pdf finescale bioturbation effects of tubificid worm. Look for this pdf icon at the top of each page as you search.
Dnabarcoding electronic supplementary material the online version of. Introduction aquatic oligochaetes represent valuable indicators of the quality of sediments of watercourses and lakes, but their difficult identification based on morphological criteria compromises their more common use for ecodiagnostic analyses. Effects of species interactions on the survival and respiration of limnodrilus hoffmeisteri and tubifex tubifex oligochaeta, tubificidae exposed to various pollutants and environmental factors. The taxonomic status of this species is controversial due to great variation in morphological features. Tubificinae is described based on a single specimen from the mainstream of the changjiang river near anqing city, anhui province, china. All structured data from the file and property namespaces is available under the creative commons cc0 license. Temporal dynamics of microcystins in limnodrilus hoffmeisteri. Freshwater oligochaetes, such as the pollutiontolerant naidids tubifex tubifex and limnodrilus hoffmeisteri, can withstand exposure to 10 ppt salinity, but others can only survive at 5 ppt 42,43. Population structure and secondary productivity of limnodrilus hoffmeisteri claparede and branchiura sowerbyi beddard in the profundal zone of lake. Montana field guide contains a wealth of information about montanas diverse species. The two studied species feature different bioturbation modes involving bioirrigation and upward bioconveyance. Limnodrilus, and the neotype provides a baseline for further revisions of the taxonomy of the l. Aquatic oligochaete biology ix selected papers from the 9th.
The effect of dissolved oxygen on the burrowing behavior. Pdf limnodrilus hoffmeisteri claparede, 1862 is a common freshwater worm, often regarded as an indicator of organic pollution. Extensive cryptic diversity in the cosmopolitan sludge. The tubificid worms, limnodrilus hoffmeisteri oligochaeta tubificidae were maintained and acclimatized under laboratory conditions. Effects of chironomid larvae and limnodrilus hoffmeisteri. Compare the results for each group of worms, based on graph b. Clumped patches of the oligochaete, limnodrilus hoffmeisteri, were subjected to predation by the leech, erpobdella punctata to determine how the dispersion pattern might change. Pdf extensive cryptic diversity in the cosmopolitan. The new species is assigned to limnodrilus by the presence of long vasa deferentia, spindleshaped atria with long ejaculatory ducts, large prostate glands, and thick cylindrical penial sheaths. Itis taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. We investigated bioaccumulation and biotransformation of two widely used personal care products, triclosan tcs and galaxolide hhcb spiked to sediment, in the oligochaete worm limnodrilus.
We investigated bioaccumulation and biotransformation of two widely used personal care products, triclosan tcs and galaxolide hhcb spiked to sediment, in the oligochaete worm limnodrilus hoffmeisteri in watersediment microcosms. Rapid loss of genetically based resistance to metals after. Distribution and diversity of oligochaetes in selected ponds. Pdf population structure and secondary productivity of. Org divers evol extensive cryptic diversity in the cosmopolitan sludge worm limnodrilus hoffmeisteri clitellata, naididae yingkui liu 0 1 2 steven v. Bioavailability of polycyclic aromatic hydrocarbons and their. Virulence of the parasite was directly correlated with the numbers of triactinomyxon spores that developed within each strain of t. Pdf distribution patterns of the freshwater oligochaete. The only tubificid species reproducing exclusively by sexual means, and common also in tropical countries, are limnodrilus hoffmeisteri and branchiura sowerbyi. Toxicity of sedimentassociated pyrene and phenanthrene to limnodrilus hoffmeisteri oligochaeta. Besides tubifex tubifex and limnodrilus hoffmeisteri. A low level of salinity actually seems to improve the ability of freshwater worms to withstand stress factors. Limnodrilus hoffmeisteri claparede, 1862 is a common freshwater worm, often regarded as an indicator of organic pollution. Pdf occurrence of peritrich ciliates on the limnic.
The role of tubificid worms limnodrilus hoffmeisteri in. Transactions of the american microscopical society, vol. Pyrene was not acutely toxic, even at concentrations as high as 841. This study investigated the effects of tubificid worm bioturbation on the lability of phosphorus p in microcosm sediments. Finescale bioturbation effects of tubificid worm limnodrilus hoffmeisteri on the lability of phosphorus in sediments. Highresolution dialysis hrpeeper and two types of diffusive gradients in thin films dgt zroxide dgt and zrochelex dgt were used to measure soluble p and fe, and labile p and fe at a millimeter spatial scale.
Jun 01, 2016 read temporal dynamics of microcystins in limnodrilus hoffmeisteri, a dominant oligochaete of hypereutrophic lake taihu, china, environmental pollution on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. The role of the freshwater oligochaete limnodrilus. Jeanpierre cornec, jean cresp, paule delye, fred hoarau, and, georges reynaud. Stylaria lacustris was the most abundant naidid worms.
Tissue responses and organogenesis during regeneration in the. Parasitology lab at university of new orleans studyblue limnodrilus hoffmeisteri wikipedia pyrosoma atlanticum wikipedia. The present report is to describe an incidental human infection with oligochaetes in the nasal cavity of a chinese man, a 25yearold man residing in zhangjiakou city, hebei province, china presenting with nose bleed, severe itching, continuous sneezing, and rhinorrhea. This page was last edited on 17 october 2019, at 11. Observations of predatorprey interaction on dispersal of an. Loss of evolutionary resistance by the oligochaete limnodrilus hoffmeisteri to a toxic substancecost or gene flow. Moreover, 2 closely related species of tubificids, limnodrilus hoffmeisteri and ilyodrilus templetoni, which occur naturally in mixed species assemblages with t. Previous contributions have shown the effects of organic matter and temperature on the life history of the species, although very little is known about the factors that influence its reproduction. Groups composed of tubifex tubifex and limnodrilus hoffmeisteri collected from keating channel and hanlans point in toronto harbor, lake ontario, preferred keating channel sediment over hanlans p.
Limnodrilus hoffmeisteri wikipedia pyrosoma atlanticum wikipedia transmission of diseases by vectors parasitology chinese character simplification scheme wikipedia peripatopsidae wikipedia butterworm wikipedia invertebrates animal groups axles and shafts. Some abundant and common taxa of limnodrilus are ecologically and economically important in many respects, but taxonomic controversy, especially regarding the diagnosis of the cosmopolitan limnodrilus hoffmeisteri claparede, 1862 the type species of the genus, has lasted for more than a century. Abstract while graphene has substantial commercial potential, numerous aspects regarding its potential ecological effects such as its potential for bioaccumulation are not well known. Substrate selection by tubificid oligochaetes canadian. Effects of urbanization on water quality and the macrobenthos. However, it is not a legal authority for statutory or regulatory purposes. Population structure and secondary productivity of limnodrilus hoffmeisteri claparede and branchiura sowerbyi beddard in the profundal zone of lake naivasha, kenya. Two separate experiments showed that worms left the patch in 39% and 48% greater numbers when the leech predator was present.
The effect of temperature on the reproduction of limnodrilus hoffmeisteri 193 zoologia 26 1. It is still next to impossible to distinguish species using immature worms of thelimnodrilus genus. A method was developed to separate mixed immature populations oflimnodrilus hoffmeisteri andlimnodrilus claparedeianus into each species. Marlin the marine life information network limnodrilus. Biological redistribution of lake sediments by tubificid. Limnodrilus hoffmeisteri worms surviving sediment exposure after 28 days. Note that images and other media featured on this page. The first of them originates from the temperate zone but is able to reproduce also at persistently high temperatures, while the second one even breeds more effectively at temperatures. Bioaccumulation and biotransformation of triclosan and. Limnodrilus hoffmeisteri an overview sciencedirect topics. Oct 12, 2004 read population structure and secondary productivity of limnodrilus hoffmeisteri claparede and branchiura sowerbyi beddard in the profundal zone of lake naivasha, kenya, hydrobiologia on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. The effect of temperature on the reproduction of limnodrilus hoffmeisteri oligochaeta. Spearman rank correlation analyses were performed to assess the relationships between the percentages of impervious area or the proportions of.
Limnodrilus hoffmeisteri, also known as red worm, is one of the most widespread and abundant. The information text only provided by the marine life information network marlin is licensed under a the information text only provided by the marine life information network marlin is licensed under a creative commons attributionnoncommercialsharealike 4. Laboratory mass culture of the freshwater oligochaete dero. Exposure of few layer graphene to limnodrilus hoffmeisteri. Limnodrilus hoffmeisteri and lumbriculus variegatus used for the elucidation of the life cycle of the myxozoan chloromyxum auratum were held in containers with 1 l of autoclaved coarse sand and 2 l of constantly aerated water maintained at 14 c atkinson et al. Population structure and secondary productivity of. Phenanthrene was acutely toxic at high sediment concentrations 10.
The impacts of chironomid larvae and the tubificid worm limnodrilus hoffmeisteri on the distribution and flux of the heavy metal chromium cr across the sedimentwater interface were investigated with a 21day laboratory microcosm experiment. The first record of a new alien species limnodrilus cervix annelida. This issue was published in freshwater invertebrate biology 19821985, which is continued by freshwater science 2012present. Cytochrome c oxidase barcodes for aquatic oligochaete. Pdf infection of oligochaetes, limnodrilus hoffmeisteri annelida. Species distribution of oligochaetes related to environmental. A key finding to emerge from this survey was that high oligochaete density, t. Limnodrilus hoffmeisteri claparede, 1862 is a cosmopolitan oligochaeta widely used as indicator of organic pollution in water bodies. These worms feed head down in the sediment up to 20 cm for b. Extensive cryptic diversity in the cosmopolitan sludge worm. A few limnodrilus hoffmeisteri, tubifex tubifex and t.
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