Laboratory mass culture of the freshwater oligochaete dero. 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. Note that images and other media featured on this page. Clumped patches of the oligochaete, limnodrilus hoffmeisteri, were subjected to predation by the leech, erpobdella punctata to determine how the dispersion pattern might change. Extensive cryptic diversity in the cosmopolitan sludge worm. This issue was published in freshwater invertebrate biology 19821985, which is continued by freshwater science 2012present. Functional beta diversity was significantly positively correlated with taxonomic beta diversity, while functional beta diversity was on average lower. Pdf limnodrilus hoffmeisteri claparede, 1862 is a common freshwater worm, often regarded as an indicator of organic pollution. Pdf population structure and secondary productivity of.
Limnodrilus hoffmeisteri claparede, 1862 is a common freshwater worm, often regarded as an indicator of organic pollution. The role of the freshwater oligochaete limnodrilus. Moreover, 2 closely related species of tubificids, limnodrilus hoffmeisteri and ilyodrilus templetoni, which occur naturally in mixed species assemblages with t. Temporal dynamics of microcystins in limnodrilus hoffmeisteri. Tissue responses and organogenesis during regeneration in the oligochete limnodrilus hoffmeisteri clap. Short communication the effect of temperature on the. It has a simple conical shaped head without eyespots and a long cylindrical body with 5595 segments. Infection of oligochaetes, limnodrilus hoffmeisteri. Tissue responses and organogenesis during regeneration in the. Patterns of distribution and abundance of tubifex tubifex and. 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. 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.
Toxicity of sedimentassociated pyrene and phenanthrene to limnodrilus hoffmeisteri oligochaeta. Limnodrilus hoffmeisteri is a small, thin worm about 2035 mm in length. 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. Distribution and diversity of aquatic oligochaeta in small.
Cytochrome c oxidase barcodes for aquatic oligochaete. Transactions of the american microscopical society, vol. Limnodrilus hoffmeisteri is a segmented oligochaete worm with tapering end and typical body length of 2540 mm. Species distribution of oligochaetes related to environmental. Tubificinae is described based on a single specimen from the mainstream of the changjiang river near anqing city, anhui province, china. As a result of united states superfund legislation, a.
Hosted by the usgs core science analytics and synthesis. The first record of a new alien species limnodrilus cervix annelida. Pdf extensive cryptic diversity in the cosmopolitan. Pdf the effect of temperature on the reproduction of. Effects of chironomid larvae and limnodrilus hoffmeisteri. Limnodrilus hoffmeisteri an overview sciencedirect topics. Within this diverse group, limnodrilus hoffmeisteri claparede. Dnabarcoding electronic supplementary material the online version of. Stylaria lacustris was the most abundant naidid worms. Finescale bioturbation effects of tubificid worm limnodrilus hoffmeisteri on the lability of phosphorus in sediments. Phenanthrene was acutely toxic at high sediment concentrations 10.
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. Rapid loss of genetically based resistance to metals after. 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. Loss of evolutionary resistance by the oligochaete limnodrilus hoffmeisteri to a toxic substancecost or gene flow. Effects of urbanization on water quality and the macrobenthos. Molecular systematics of limnodrilus annelida, clitellata. A method was developed to separate mixed immature populations oflimnodrilus hoffmeisteri andlimnodrilus claparedeianus into each species.
Tubificidae article pdf available in zoologia curitiba impresso 261 march 2009 with 105 reads. These worms feed head down in the sediment up to 20 cm for b. Montana field guide contains a wealth of information about montanas diverse species. Bioaccumulation and biotransformation of triclosan and. Besides tubifex tubifex and limnodrilus hoffmeisteri. Abstract while graphene has substantial commercial potential, numerous aspects regarding its potential ecological effects such as its potential for bioaccumulation are not well known. An limnodrilus hoffmeisteri in nahilalakip ha genus nga limnodrilus, ngan familia nga tubificidae. The ratio of setal upper tooth length to lower tooth length, inl. The effect of temperature on the reproduction of limnodrilus hoffmeisteri 193 zoologia 26 1. Population structure and secondary productivity of.
Biological redistribution of lake sediments by tubificid. Pdf infection of oligochaetes, limnodrilus hoffmeisteri annelida. 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. 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. 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. This volume contains selected papers from the 9th symposium on aquatic oligochaeta, 610 october 2003, wageningen, the netherlands. 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. Effects of species interactions on the survival and.
Org divers evol extensive cryptic diversity in the cosmopolitan sludge worm limnodrilus hoffmeisteri clitellata, naididae yingkui liu 0 1 2 steven v. Method for distinguishing limnodrilus hoffmeisteri and. Marlin the marine life information network limnodrilus. Population structure and secondary productivity of limnodrilus hoffmeisteri claparede and branchiura sowerbyi beddard in the profundal zone of lake. The worm appeared red in colour, owing to the possession of the respiratory pigment haemoglobin. Jeanpierre cornec, jean cresp, paule delye, fred hoarau, and, georges reynaud. Spearman rank correlation analyses were performed to assess the relationships between the percentages of impervious area or the proportions of. Aquatic oligochaete biology ix selected papers from the 9th. This page was last edited on 17 october 2019, at 11. Compare the results for each group of worms, based on graph b. Help pages, faqs, uniprotkb manual, documents, news archive and biocuration projects. Limnodrilus hoffmeisteri worms surviving sediment exposure after 28 days. Substrate selection by tubificid oligochaetes canadian. 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.
Pyrene bioaccumulation, effects of pyrene exposure on. Influence of body weight and substrate granulometry on the. 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. 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. Pdf the infection by limnodrilus hoffmeisteri clapar. Distribution and diversity of oligochaetes in selected ponds. 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.
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. The effect of temperature on the reproduction of limnodrilus hoffmeisteri oligochaeta. 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. The only tubificid species reproducing exclusively by sexual means, and common also in tropical countries, are limnodrilus hoffmeisteri and branchiura sowerbyi. A few limnodrilus hoffmeisteri, tubifex tubifex and t. Effects of species interactions on the survival and respiration of limnodrilus hoffmeisteri and tubifex tubifex oligochaeta, tubificidae exposed to various pollutants and environmental factors. Itis taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. Limnodrilus hoffmeisteri, also known as red worm, is one of the most widespread and abundant. 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.
Pdf occurrence of peritrich ciliates on the limnic. Tubificid worms made up the majority component of aquatic oligocheata in investigated area of the river specially limnodrilus spp. It is still next to impossible to distinguish species using immature worms of thelimnodrilus genus. Observations of predatorprey interaction on dispersal of an. Oil decontamination of bottom sediments using limnodrilus hoffmeisteri oligochaeta. The tubificid worms, limnodrilus hoffmeisteri oligochaeta tubificidae were maintained and acclimatized under laboratory conditions.
Exposure of few layer graphene to limnodrilus hoffmeisteri. The oligochaete limnodrilus hoffmeisteri cleparede was exposed to sediment. The role of tubificid worms limnodrilus hoffmeisteri in. Nutrient enrichment homogenizes taxonomic and functional. Page designed through the cooperative efforts of interagency itis teams. 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. Files are available under licenses specified on their description page. Extensive cryptic diversity in the cosmopolitan sludge. Bioavailability of polycyclic aromatic hydrocarbons and their. Population structure and secondary productivity of limnodrilus hoffmeisteri claparede and branchiura sowerbyi beddard in the profundal zone of lake naivasha, kenya. Occurrence of peritrich ciliates on the limnic oligochaete limnodrilus hoffmeisteri oligochaeta, tubificidae in the neotropics. Virulence of the parasite was directly correlated with the numbers of triactinomyxon spores that developed within each strain of t.
Limnodrilus, and the neotype provides a baseline for further revisions of the taxonomy of the l. Pyrene was not acutely toxic, even at concentrations as high as 841. Parasitology lab at university of new orleans studyblue limnodrilus hoffmeisteri wikipedia pyrosoma atlanticum wikipedia. A low level of salinity actually seems to improve the ability of freshwater worms to withstand stress factors. The two studied species feature different bioturbation modes involving bioirrigation and upward bioconveyance. 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. 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. The effect of dissolved oxygen on the burrowing behavior.
The taxonomic status of this species is controversial due to great variation in morphological features. This study investigated the effects of tubificid worm bioturbation on the lability of phosphorus p in microcosm sediments. However, it is not a legal authority for statutory or regulatory purposes. Limnodrilus hoffmeisteri claparede, 1862 is a cosmopolitan oligochaeta widely used as indicator of organic pollution in water bodies. 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.
All structured data from the file and property namespaces is available under the creative commons cc0 license. Look for this pdf icon at the top of each page as you search. Two separate experiments showed that worms left the patch in 39% and 48% greater numbers when the leech predator was present. Pdf distribution patterns of the freshwater oligochaete.
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