Relevant bibliographies by topics / Annelids

Academic literature on the topic 'Annelids'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 April 2022

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Journal articles on the topic "Annelids":

McHugh, Damhnait. "Molecular phylogeny of the Annelida." Canadian Journal of Zoology 78, no. 11 (November 1, 2000): 1873–84. http://dx.doi.org/10.1139/z00-141.

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Traditionally, the Annelida has been classified as a group comprising the Polychaeta and the Clitellata. Recent phylogenetic analyses have led to profound changes in the view that the Annelida, as traditionally formulated, is a natural, monophyletic group. Both molecular and morphological analyses support placement of the Siboglinidae (formerly the Pogonophora) as a derived group within the Annelida; there is also evidence, based on molecular analysis of the nuclear gene elongation factor-1α, that the unsegmented echiurids are derived annelids. While monophyly of the Clitellata is well-supported by both molecular and morphological analyses, there is no molecular evidence to support monophyly of the polychaete annelids; the Clitellata fall within a paraphyletic polychaete grade. Relationships among groups of polychaete annelids have not yet been resolved by molecular analysis. Within the Clitellata, paraphyly of the Oligochaeta was indicated in a phylogenetic analysis of cytochrome c oxidase I, which supported a sister relationship between the leeches, including an acanthobdellid and a branchiobdellid, and two of the four oligochaetes in the analysis. There is some evidence from analysis of 18S rRNA sequences for a sister-group relationship between the clitellates and the taxon Aeolosoma. There is no agreement regarding the body form of the basal annelid, and while molecular analyses provide strong support for the Eutrochozoa, the identity of sister-group to the Annelida among the Eutrochozoa remains enigmatic. It is recommended that future investigations include additional conserved gene sequences and expanded taxon sampling. It is likely that the most productive approach to resolving annelid phylogeny, and thus increasing our understanding of annelid evolution, will come from combined analyses of several gene sequences.

ROUSE, GREG W., and FREDRIK PLEIJEL. "Annelida*." Zootaxa 1668, no. 1 (December 21, 2007): 245–64. http://dx.doi.org/10.11646/zootaxa.1668.1.13.

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The first annelids were formally described by Linnaeus (1758) and we here briefly review the history and composition of the group. The traditionally recognized classes were Polychaeta, Oligochaeta and Hirudinea. The latter two are now viewed as the taxon Clitellata, since recognizing Hirudinea with class rank renders Oligochaeta paraphyletic. Polychaeta appears to contain Clitellata, and so may be synonymous with Annelida. Current consensus would place previously recognized phyla such as Echiura, Pogonophora, Sipuncula and Vestimentifera as annelids, though relationships among these and the various other annelid lineages are still unresolved.

Mucciolo, Serena, Andrea Desiderato, Marika Salonna, Tomasz Mamos, Viviane Prodocimo, Maikon Di Domenico, Francesco Mastrototaro, Paulo Lana, Carmela Gissi, and Giuseppe Calamita. "Finding Aquaporins in Annelids: An Evolutionary Analysis and a Case Study." Cells 10, no. 12 (December 17, 2021): 3562. http://dx.doi.org/10.3390/cells10123562.

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Aquaporins (AQPs) are a family of membrane channels facilitating diffusion of water and small solutes into and out of cells. Despite their biological relevance in osmoregulation and ubiquitous distribution throughout metazoans, the presence of AQPs in annelids has been poorly investigated. Here, we searched and annotated Aqp sequences in public genomes and transcriptomes of annelids, inferred their evolutionary relationships through phylogenetic analyses and discussed their putative physiological relevance. We identified a total of 401 Aqp sequences in 27 annelid species, including 367 sequences previously unrecognized as Aqps. Similar to vertebrates, phylogenetic tree reconstructions clustered these annelid Aqps in four clades: AQP1-like, AQP3-like, AQP8-like and AQP11-like. We found no clear indication of the existence of paralogs exclusive to annelids; however, several gene duplications seem to have occurred in the ancestors of some Sedentaria annelid families, mainly in the AQP1-like clade. Three of the six Aqps annotated in Alitta succinea, an estuarine annelid showing high salinity tolerance, were validated by RT-PCR sequencing, and their similarity to human AQPs was investigated at the level of “key” conserved residues and predicted three-dimensional structure. Our results suggest a diversification of the structures and functions of AQPs in Annelida comparable to that observed in other taxa.

Parry, Luke A., Gregory D. Edgecombe, Danny Eibye-Jacobsen, and Jakob Vinther. "The impact of fossil data on annelid phylogeny inferred from discrete morphological characters." Proceedings of the Royal Society B: Biological Sciences 283, no. 1837 (August 31, 2016): 20161378. http://dx.doi.org/10.1098/rspb.2016.1378.

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As a result of their plastic body plan, the relationships of the annelid worms and even the taxonomic makeup of the phylum have long been contentious. Morphological cladistic analyses have typically recovered a monophyletic Polychaeta, with the simple-bodied forms assigned to an early-diverging clade or grade. This is in stark contrast to molecular trees, in which polychaetes are paraphyletic and include clitellates, echiurans and sipunculans. Cambrian stem group annelid body fossils are complex-bodied polychaetes that possess well-developed parapodia and paired head appendages (palps), suggesting that the root of annelids is misplaced in morphological trees. We present a reinvestigation of the morphology of key fossil taxa and include them in a comprehensive phylogenetic analysis of annelids. Analyses using probabilistic methods and both equal- and implied-weights parsimony recover paraphyletic polychaetes and support the conclusion that echiurans and clitellates are derived polychaetes. Morphological trees including fossils depict two main clades of crown-group annelids that are similar, but not identical, to Errantia and Sedentaria, the fundamental groupings in transcriptomic analyses. Removing fossils yields trees that are often less resolved and/or root the tree in greater conflict with molecular topologies. While there are many topological similarities between the analyses herein and recent phylogenomic hypotheses, differences include the exclusion of Sipuncula from Annelida and the taxa forming the deepest crown-group divergences.

Bartolomaeus, Thomas. "Head Kidneys in Hatchlings of Scoloplos Armiger (Annelida: Orbiniida): Implications for the Occurrence of Protonephridia in Lecithotrophic Larvae." Journal of the Marine Biological Association of the United Kingdom 78, no. 1 (February 1998): 183–92. http://dx.doi.org/10.1017/s0025315400040017.

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It is generally believed that lecithotrophic larvae of annelids do not possess functional excretory organs. However, as in certain annelids the planktotrophic trochophora larva has been secondarily modified into a lecithotrophic developmental stage and because protonephridia are characteristic for the trochophora, lecithotrophic developmental stages should also possess such organs. To test this assumption hatchlings of the orbiniidan Scoloplos armiger, which develops directly without a free-living larval stage, were investigated ultrastrucrurally. Each hatchling possesses a pair of protonephridia which lie caudal to the eyes and almost level with the frontal margin of the foregut. Each organ consists of three multiciliated cells, a terminal cell, a duct cell and a nephropore cell. The terminal cell bears a distally oriented hollow cytoplasmic cylinder, which surrounds the cilia. Adherens junctions connect this structure to the duct cell. Several clefts and pores perforate the wall of the hollow cylinder. Extracellular material covers the pores and clefts and thus may function as a molecular sieve during filtration. A comparison with the protonephridia of other annelid larvae reveals: (1) that one pair of protonephridial head kidneys consisting of a terminal cell, a duct cell and a nephropore cell must be assumed for the trochophore in the ground pattern of annelids and (2) that these organs are preserved when lecithotrophic larval stages evolved within the Annelida

Capa, María, and Pat Hutchings. "Annelid Diversity: Historical Overview and Future Perspectives." Diversity 13, no. 3 (March 17, 2021): 129. http://dx.doi.org/10.3390/d13030129.

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Annelida is a ubiquitous, common and diverse group of organisms, found in terrestrial, fresh waters and marine environments. Despite the large efforts put into resolving the evolutionary relationships of these and other Lophotrochozoa, and the delineation of the basal nodes within the group, these are still unanswered. Annelida holds an enormous diversity of forms and biological strategies alongside a large number of species, following Arthropoda, Mollusca, Vertebrata and perhaps Platyhelminthes, among the species most rich in phyla within Metazoa. The number of currently accepted annelid species changes rapidly when taxonomic groups are revised due to synonymies and descriptions of a new species. The group is also experiencing a recent increase in species numbers as a consequence of the use of molecular taxonomy methods, which allows the delineation of the entities within species complexes. This review aims at succinctly reviewing the state-of-the-art of annelid diversity and summarizing the main systematic revisions carried out in the group. Moreover, it should be considered as the introduction to the papers that form this Special Issue on Systematics and Biodiversity of Annelids.

MAGALHÃES, WAGNER F., PAT HUTCHINGS, ALEJANDRO OCEGUERA-FIGUEROA, PATRICK MARTIN, RÜDIGER M. SCHMELZ, MARK J. WETZEL, HELENA WIKLUND, NANCY J. MACIOLEK, GISELE Y. KAWAUCHI, and JASON D. WILLIAMS. "Segmented worms (Phylum Annelida): a celebration of twenty years of progress through Zootaxa and call for action on the taxonomic work that remains." Zootaxa 4979, no. 1 (May 28, 2021): 190–211. http://dx.doi.org/10.11646/zootaxa.4979.1.18.

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Zootaxa has been the leading journal on invertebrate systematics especially within Annelida. Our current estimates indicate annelids include approximately 20,200 valid species of polychaetes, oligochaetes, leeches, sipunculans and echiurans. We include herein the impact of Zootaxa on the description of new annelid species in the last two decades. Since 2001, there have been over 1,300 new annelid taxa published in about 630 papers. The majority of these are polychaetes (921 new species and 40 new genera) followed by oligochaetes (308 new species and 10 new genera) and leeches (21 new species). The numerous papers dealing with new polychaete species have provided us a clear picture on which polychaete families have had the most taxonomic effort and which authors and countries have been the most prolific of descriptions of new taxa. An estimated additional 10,000+ species remain to be described in the phylum, thus we urge annelid workers to continue their efforts and aid in training a new generation of taxonomists focused on this ecologically important group.

Kennedy, Victor S. "A summer benthic survey in Conception Bay, Newfoundland, emphasizing zoogeography of annelids and amphipods." Canadian Journal of Zoology 63, no. 8 (August 1, 1985): 1863–69. http://dx.doi.org/10.1139/z85-277.

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A limited benthic survey was made in August in Conception Bay, Newfoundland, using a 0.2-m2 van Veen grab sampler. Nine stations were sampled in a relatively shallow (62–79 m), soft-bottom (predominantly silt) region with low bottom water (0.2–1.4 °C) and sediment (0.5–2.0 °C) temperatures. Annelids (32 species) and amphipods (18 species) were the common invertebrates collected, with annelids being more numerous, both in numbers of individuals and of species. Deposit-feeding annelids outnumbered carnivores, with subsurface deposit feeders more abundant than surface feeders. Sedentary individuals predominated. Most annelid species had boreal–temperate affinities, with few arctic species being present. Detritivorous amphipods predominated, followed by scrapers and scavengers. Nearly all were burrowers. All the amphipod species were arctic–boreal in distribution and most do not range as far south as do the annelids. Molluscs were small and uncommon and they, like the remaining uncommon components of the biomass, were not identified to any extent.

Kostyuchenko, Roman P., and Vitaly V. Kozin. "Comparative Aspects of Annelid Regeneration: Towards Understanding the Mechanisms of Regeneration." Genes 12, no. 8 (July 28, 2021): 1148. http://dx.doi.org/10.3390/genes12081148.

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The question of why animals vary in their ability to regenerate remains one of the most intriguing questions in biology. Annelids are a large and diverse phylum, many members of which are capable of extensive regeneration such as regrowth of a complete head or tail and whole-body regeneration, even from few segments. On the other hand, some representatives of both of the two major annelid clades show very limited tissue regeneration and are completely incapable of segmental regeneration. Here we review experimental and descriptive data on annelid regeneration, obtained at different levels of organization, from data on organs and tissues to intracellular and transcriptomic data. Understanding the variety of the cellular and molecular basis of regeneration in annelids can help one to address important questions about the role of stem/dedifferentiated cells and “molecular morphallaxis” in annelid regeneration as well as the evolution of regeneration in general.

Clauss, Wolfgang G. "Epithelial transport and osmoregulation in annelids." Canadian Journal of Zoology 79, no. 2 (February 1, 2001): 192–203. http://dx.doi.org/10.1139/z00-200.

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Epithelial transport related to osmoregulation has so far not been extensively investigated in annelids. Compared with the large body of information about ion transport across crustacean or insect epithelia, only a few studies have been done with isolated preparations of annelids, using the body wall of marine polychaetes or Hirudinea. Nephridial function and general body homeostasis have received more attention, and have probably been best investigated in Hirudinea. With recent advances in the molecular physiology of epithelial transport systems in vertebrates, the cloning of various transporters and ion channels, and the considerable number of osmoregulatory peptides that have now been found and analyzed from annelids, it should now be possible, and is timely, to conduct functional studies on individual selected epithelial preparations or isolated cells from annelids. Such studies may be important for establishing useful models with somewhat less complexity than mammalian systems. For example, annelids lack aldosterone, an important osmoregulatory hormone, which is a key factor in the regulation of sodium reabsorption in vertebrates. Therefore, not only would such studies contribute to annelid physiology, but they would be important in a broader sense for understanding osmoregulation and its evolution. They should also facilitate the discovery and investigation of new specific regulatory pathways.

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Dissertations / Theses on the topic "Annelids":

Ogino, Tetsuya. "Environmental adaptation mechanism in marine annelids." Kyoto University, 2019. http://hdl.handle.net/2433/242707.

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Kyoto University (京都大学)
0048
新制・課程博士
博士(農学)
甲第21830号
農博第2343号
新制||農||1068(附属図書館)
学位論文||H31||N5202(農学部図書室)
京都大学大学院農学研究科応用生物科学専攻
(主査)教授佐藤健司, 教授澤山茂樹, 准教授豊原治彦
学位規則第4条第1項該当

Tilic, Ekin [Verfasser]. "Ultrastructure, Formation and Evolution of Chaetae in Annelids / Ekin Tilic." Bonn : Universitäts- und Landesbibliothek Bonn, 2016. http://d-nb.info/1096329972/34.

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McDougall, Carmel. "Comparative biology of Pomatoceros lamarckii and Dix evolution in annelids." Thesis, University of Oxford, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.497051.

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Jennings, Robert M. (Robert Michael). "Mitochondrial genomics and northwestern Atlantic population genetics of marine annelids." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/39191.

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Thesis (Ph. D.)--Joint Program in Biological Oceanography (Massachusetts Institute of Technology, Dept. of Biology; and the Woods Hole Oceanographic Institution), 2005.
Includes bibliographical references.
The overarching goal of this thesis was to investigate marine benthic invertebrate phylogenetics and population genetics, focused on the phylum Annelida. Recent expansions of molecular methods and the increasing diversity of available markers have allowed more complex and fine-scale questions to be asked at a variety of taxonomic levels. At the phylogenetic level, whole mitochondrial genome sequencing of two polychaetes (the deep-sea tubeworm Riftia pachyptila and the intertidal bamboo worm Clymenella torquata) supports the placement of leeches and oligochaetes within the polychaete radiation, in keeping with molecular evidence and morphological reinvestigations. This re-interpretation, first proposed by others, synonomizes "Annelida" and "Polychaeta", and lends further support to the inclusion of echiurids, siboglinids (previously called vestimentiferans) within annelids, and sipunculans as close allies. The complete mt-genome of C. torquata was then rapidly screened to obtain markers useful in short timescale population genetics.
(cont.) Two quickly evolving mitochondrial markers were sequenced from ten populations of C. torquata from the Bay of Fundy to New Jersey to investigate previous hypotheses that the Cape Cod, MA peninsula is a barrier to gene flow in the northwest Atlantic. A barrier to gene flow was found, but displaced south of Cape Cod, between Rhode Island and Long Island, NY. Imposed upon this pattern was a gradient in genetic diversity presumably due to previous glaciation, with northern populations exhibiting greatly reduced diversity relative to southern sites. These trends in C. torquata, combined with other recent short time scale population genetic research, highlight the lack of population genetics models relevant to marine benthic invertebrates. To this end, I constructed a model including a typical benthic invertebrate life cycle, and described the patterns of genetic differentiation at the juvenile and adult stages. Model analysis indicates that selection operating at the post- settlement stage may be extremely important in structuring genetic differentiation between populations and life stages. Further, it demonstrates how combined genetic analysis of sub-adult and adult samples can provide more information about population dynamics than either could alone.
by Robert M. Jennings.
Ph.D.

Parry, Luke Alexander. "A palaeontological perspective on the early evolution and phylogeny of annelids." Thesis, University of Bristol, 2017. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.738261.

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Elsworth, Benjamin Lloyd. "Unearthing the genome of the earthworm Lumbricus rubellus." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/7596.

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The earthworm has long been of interest to biologists, most notably Charles Darwin, who was the first to reveal their true role as eco-engineers of the soil. However, to fully understand an animal one needs to combine observational data with the fundamental building blocks of life, DNA. For many years, sequencing a genome was an incredibly costly and time-consuming process. Recent advances in sequencing technology have led to high quality, high throughput data being available at low cost. Although this provides large amounts of sequence data, the bioinformatics knowledge required to assemble and annotate these new data are still in their infancy. This bottleneck is slowly opening up, and with it come the first glimpses into the new and exciting biology of many new species. This thesis provides the first high quality draft genome assembly and annotation of an earthworm, Lumbricus rubellus. The assembly process and resulting data highlight the complexity of assembling a eukaryotic genome using short read data. To improve assembly, a novel approach was created utilising transcripts to scaffold the genome (https://github.com/elswob/SCUBAT). The annotation of the assembly provides the draft of the complete proteome, which is also supported by the first RNA-Seq generated transcriptome. These annotations have enabled detailed analysis of the protein coding genes including comparative analysis with two other annelids (a leech and a polychaete worm) and a symbiont (Verminephrobacter). This analysis identified four key areas which appear to be either highly enhanced or unique to L. rubellus. Three of these may be related to the unique environment from which the sequenced worms originated and add to the mounting evidence for the use of earthworms as bioindicators of soil quality. All data is stored in relational databases and available to search and browse via a website at www.earthworms.org. It is hoped that this genome will provide a springboard for many future investigations into the earthworm and continue research into this wonderful animal.

Georgieva, Magdalena Nikolaeva. "Tube-building annelids from hydrothermal vents and cold seeps : tube morphology, fossilisation, and evolutionary history." Thesis, University of Leeds, 2016. http://etheses.whiterose.ac.uk/15492/.

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Problems with the identification of tubular fossils from ancient hydrothermal vent and cold seep deposits have hindered understanding of the evolutionary history of vent and seep communities. This thesis aims to (1) improve knowledge of lesser-studied tubicolous annelids occupying vents and seeps, (2) study the diversity of tubes at vents and seeps, (3) investigate the fossilisation of tubes within modern vents and seeps, (4) better interpret the fossil record, and (5) provide insights into the palaeoecology these environments. Results presented here on investigations of Sclerolinum contortum, a species belonging to a little- studied genus of the major vent/seep dwelling annelid family Siboglinidae, demonstrate that it exhibits tube morphological plasticity, wide habitat preferences and a global distribution spanning the Arctic to the Southern Ocean. These results also suggest that this species has dispersed throughout this range using chemosynthetic habitats as stepping stones. A detailed investigation of the full mineralisation process of Alvinella (Alvinellidae) tubes at modern hydrothermal vents shows that these tubes are fossilised by pyrite and silica that template organic tube layers, and that microorganisms living on tube surfaces are also exceptionally well-preserved alongside the tubes. No known ancient vent tube fossils resemble mineralised Alvinella tubes. A major morphological and compositional comparison of both modern and fossil tubes from vents and seeps revealed that two fossil tube types from the Mesozoic were likely made by vestimentiferans (Siboglinidae), suggesting that this major vent and seep annelid lineage has a longer history within vents and seeps than proposed by molecular clock age estimates. This analysis also demonstrates the need for greater caution in assigning affinities to fossil vent and seep tubes. Finally, this thesis reports the remarkable preservation of filamentous microorganisms on the walls of Silurian vent tube fossils, giving the first insights into ecological associations between microbes and metazoans within the oldest known hydrothermal vent community.

Tanaka, Sota. "Behavior of radioactive cesium through the food chain in arthropods and annelids after the Fukushima Dai-ichi nuclear power plant accident." Kyoto University, 2019. http://hdl.handle.net/2433/242703.

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Kyoto University (京都大学)
0048
新制・課程博士
博士(農学)
甲第21826号
農博第2339号
新制||農||1067(附属図書館)
学位論文||H31||N5198(農学部図書室)
京都大学大学院農学研究科地域環境科学専攻
(主査)准教授髙橋知之, 教授北山兼弘, 准教授刑部正博
学位規則第4条第1項該当

Thamm, Katrin [Verfasser]. "Involvement of the Notch-signaling pathway in the development of the two polychaete annelids Capitella sp. I and Platynereis dumerilii / Katrin Thamm." Gießen : Universitätsbibliothek, 2007. http://d-nb.info/1058561766/34.

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Zhong, Min Halanych Kenneth M. "Applicability of mitochondrial genome data to annelid phylogeny and the evolution of group II introns." Auburn, Ala, 2009. http://hdl.handle.net/10415/1765.

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Books on the topic "Annelids":

Shain, Daniel H., ed. Annelids in Modern Biology. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470455203.

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Dorresteijn, Adriaan W. C., and Wilfried Westheide, eds. Reproductive Strategies and Developmental Patterns in Annelids. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-2887-4.

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Wu, Pao-ling. The Nereidae (Polychaetous annelids) of the Chinese coast. Beijing: China Ocean Press, 1985.

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Purschke, Günter, Markus Böggemann, and Wilfried Westheide, eds. Annelida. Berlin, Boston: De Gruyter, 2019. http://dx.doi.org/10.1515/9783110291582.

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Purschke, Günter, Wilfried Westheide, and Markus Böggemann, eds. Annelida. Berlin, Boston: De Gruyter, 2020. http://dx.doi.org/10.1515/9783110291681.

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Štrba, Annelies. Annelies Štrba. Dublin: Douglas Hyde Gallery, 2008.

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Hartmann-Schröder, Gesa. Annelida, Borstenwürmer, Polychaeta. 2nd ed. Jena: Gustav Fischer, 1996.

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Marshall, Heather. Anneliese. London: Hodder and Stoughton, 1988.

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Schobinger, Bernhard. Bernhard Schobinger, Annelies Štrba. Luzern: Galerie Meile, 1993.

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Imajima, Minoru. Polychaetous annelids from Sagami Bay and Sagami Sea collected by the Emperor Showa of Japan and deposited at the Showa Memorial Institute, National Science Museum, Tokyo. Tokyo: National Science Museum, 2003.

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Book chapters on the topic "Annelids":

Cole, Theodor C. H. "X. Annelida – Ringelwürmer – Annelids." In Wörterbuch der Wirbellosen / Dictionary of Invertebrates, 165–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-52869-3_10.

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Lewbart, Gregory A. "Annelids." In Invertebrate Medicine, 153–71. Oxford, UK: Wiley-Blackwell, 2011. http://dx.doi.org/10.1002/9780470960806.ch9.

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Valembois, P., P. Roch, and M. Lassègues. "Antibacterial Molecules in Annelids." In Proceedings in Life Sciences, 74–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-70768-1_7.

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Takeuchi, Nobuo. "Endocrine System of Annelids." In Atlas of Endocrine Organs, 255–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-662-11190-1_22.

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Rees, Paul A. "Platyhelminths, annelids and molluscs." In Key questions in biodiversity: a study and revision guide, 103–17. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789248630.0007.

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Salzet, Michel. "Annelids Neuro-Endrocrino-Immune Response." In Advances in Invertebrate (Neuro)Endocrinology, 93–124. Includes bibliographical references and indexes. | Contents: Volume 1. Phyla other than arthropoda.: Apple Academic Press, 2020. http://dx.doi.org/10.1201/9781003029854-4.

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Quijada-Rodriguez, Alex R., Aida Adlimoghaddam, and Dirk Weihrauch. "Nitrogen Excretion in Nematodes, Platyhelminthes, and Annelids." In Acid-Base Balance and Nitrogen Excretion in Invertebrates, 127–50. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39617-0_5.

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Joseph, Nithila A., Chi-Fan Chen, Jiun-Hong Chen, and Liuh-Yow Chen. "Monitoring Telomere Maintenance During Regeneration of Annelids." In Methods in Molecular Biology, 467–78. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2172-1_24.

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AbstractTelomere shortening is a hallmark of aging and eventually constrains the proliferative capacity of cells. The protocols discussed here are used for monitoring telomeres comprehensively in Aeolosoma viride, a model system for regeneration studies. We present methods for analyzing the activity of telomerase enzyme in regenerating tissue by telomeric repeat amplification protocol (TRAP) assay, for comparing telomere length between existing tissue and newly regenerated tissue by telomere restriction fragment (TRF) assay, as well as for visualizing telomeres by fluorescence in situ hybridization (FISH).

Magaldi, A. Ghiretti, F. Ghiretti, G. Tognon, and G. Zanotti. "The Structure of the Extracellular Hemoglobin of Annelids." In Invertebrate Oxygen Carriers, 45–52. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-71481-8_6.

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Fischer, Albrecht. "Reproductive and developmental phenomena in annelids: a source of exemplary research problems." In Reproductive Strategies and Developmental Patterns in Annelids, 1–20. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-2887-4_1.

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Conference papers on the topic "Annelids":

"Multigene phylogenies for the earthworm Eisenia nordenskioldi (Lumbricidae, Annelida)." In Bioinformatics of Genome Regulation and Structure/ Systems Biology. institute of cytology and genetics siberian branch of the russian academy of science, Novosibirsk State University, 2020. http://dx.doi.org/10.18699/bgrs/sb-2020-157.

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Shahinpoor, Mohsen. "Design and modeling of an active crawling robotic annelid." In 1994 North American Conference on Smart Structures and Materials, edited by Nesbitt W. Hagood. SPIE, 1994. http://dx.doi.org/10.1117/12.175228.

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Ferreira, F. A. L., and F. A. B. Lemos. "Unbalanced electrical distribution network reconfiguration using simulated anneling." In Exposition: Latin America. IEEE, 2010. http://dx.doi.org/10.1109/tdc-la.2010.5762965.

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PARK, J., and J. JUNG. "REDESCRIPTION OF PHARYNGOCIRRUS UCHIDAI (ANNELIDA: SACCOCIRRIDAE) USING SCANNING ELECTRON MICROSCOPE AND MOLECULAR DATA." In 5TH MOSCOW INTERNATIONAL CONFERENCE "MOLECULAR PHYLOGENETICSAND BIODIVERSITY BIOBANKING". TORUS PRESS, 2018. http://dx.doi.org/10.30826/molphy2018-64.

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Gaiotto, Alessandra, Marta Bellio, Elisabetta Piva, Sophia Schumann, Paola Irato, and Gianfranco Santovito. "AN INNOVATIVE DIDACTIC APPROACH TO STUDY PORIFERA, ANNELIDA AND MOLLUSCA IN PRIMARY SCHOOL." In 16th International Technology, Education and Development Conference. IATED, 2022. http://dx.doi.org/10.21125/inted.2022.1319.

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Yoshioka, Naoki, Akira Heya, Naoto Matuo, Yousuke Nakamura, Gakuhiko Yokomori, Masaki Yoshioka, Kazuyuki Kohama, and Kazuhiro Ito. "Formation of nc-Si in SiOx by flash lamp anneling." In 2016 23rd International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD). IEEE, 2016. http://dx.doi.org/10.1109/am-fpd.2016.7543661.

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Santos, C. R. M., E. M. P. Cardoso, G. B. S. Lameira, M. T. V. Souza, J. S. Rosa Filho, and D. Aviz. "CARANGUEJOS BRAQUIÚROS (CRUSTACEA: DECAPODA) ASSOCIADOS A RECIFES DE SABELLARIIDAE (ANNELIDA: POLYCHAETA) NA ZONA COSTEIRA AMAZÔNICA." In X Congresso Brasileiro sobre Crustáceos. Sociedade Brasileira de Carcinologia, 2018. http://dx.doi.org/10.21826/2178-7581x2018146.

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Tian, Jianghong, Pan Han, Xiaolong Deng, Royce E. Lindengren, Geng Liu, Yan Ren, and Haibo Dong. "Kinematics and Hydrodynamics of Invertebrate Undulatory Swimming." In ASME 2018 5th Joint US-European Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/fedsm2018-83259.

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Dorsoventral undulation is adopted by aquatic mammals for propulsion. However, it is not too common to find invertebrate aquatic animals that undulate their bodies in the vertical plane, which results from antiphasic contractions of dorsal and ventral muscles. To explore the mechanisms of the soft-bodied propulsion, in this work, an annelid swimmer employing up and down undulatory swimming mode is chosen, and the related kinematics and hydrodynamics are studied using a combined experimental and computational approach. A fully calibrated photogrammetry system with three highspeed cameras from different views is used to record the forward swimming motion of this invertebrate swimmer, namely leech. The vertically undulating kinematics are then reconstructed from those videos. With the detailed reconstruction, the undulating wavelength and amplitude distribution the swimmer exhibits during propulsion are quantified. Kinematics analysis results show that the invertebrate swimmer swims in a vertical anguilliform mode and the wavelength is about 0.7BL (body length) when it swims at a velocity of 1.5BL/s. An in-house immersed-boundary-method based flow solver is used to conduct the numerical simulations, with which the hydrodynamic performance and wake structures are investigated. The thrust generation and power consumption of the undulating body are described quantitatively. Furthermore, along the undulating body, the pressure distributions are studied.

Jacopo, Borghese, Arduini Daniele, Pierri Cataldo, Lazic Tamara, and Giangrande Adriana. "Long term observations on Sabella spallanzanii (Annelida, Sabellidae) in the Mar Grande of Taranto (Ionian Sea). The influence of alien species." In 2021 International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters (MetroSea). IEEE, 2021. http://dx.doi.org/10.1109/metrosea52177.2021.9611589.

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Oliveira, Alisson dos Santos, Bruno Henrique Parra, Beatriz Milani Gomes, and Fernanda De Oliveira Martins. "COMPARAÇÃO DA FAUNA DE INVERTEBRADOS DE SERRAPILHEIRA EM DOIS AMBIENTES COM DIFERENTES GRAUS DE PRESERVAÇÃO." In II Congresso Brasileiro de Ciências Biológicas On-line. Revista Multidisciplinar Educação e Meio Ambiente, 2021. http://dx.doi.org/10.51189/rema/1654.

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Introdução : A ação antropológica vem influenciando mudanças negativas nos ambientes naturais devido a constante poluição e desmatamento causado pelo homem. Pensando nisso, é esperado que ambientes preservados, sem muita interferência, possuam uma maior variedade de espécies de animais e plantas. Objetivo: Com o objetivo de evidenciar essa ideia, com enfoque em comparar os ambientes e buscando outros cálculos como, frequência, abundância e índices de diversidade, foram realizadas coletas para obtenção de dados através da triagem da serrapilheira coletada. Material e Métodos: A metodologia utilizada para aplicação dessa coleta foi o método do quadrado. Foi realizado a coleta de serrapilheira para amostragem no Vale do Córrego da Água Fresca, Londrina-PR, ocorrida no período noturno, foi delimitada uma área de 40m² em dois pontos um com maior degradação e outro com menor degradação. Com um quadrado de tamanho 32cm x 22cm, foi jogado aleatoriamente nessas áreas especificadas, delimitando a área de coleta. Com o auxilio de uma pá plástica, foi recolhida a serrapilheira daquela área em busca de invertebrados. Foi realizada a triagem da serrapilheira coletada e realizado o levantamento acerca das espécies ou grupos contidos no ecossistema local de acordo com suas características morfológicas. Com os dados, foram desenvolvidas tabelas no Excel para organizar dados que expressassem o número de espécies, o quadrado localizado e a quantidade de invertebrados que havia no local. Resultados: No ponto 1 foram identificadas as seguintes espécies (Formicidae, Coleóptera, Formicidae, Blattoidea, Dermaptera, Hemiptera e Formicidae). No ponto 2, apresentou maior riqueza de espécies em relação ao ponto 1. Onde foram observadas 13 novas espécies, encontradas somente neste ponto (Coleoptera, Gástropode, Coleoptera, Coleoptera, Coleoptera, Gastropode, Crustacea, Diplopoda, Annelida, Chilopoda, Aranaea, Hemiptera e Diptera). Conclusão: Foi possível observar que ambientes preservados tendem a ter uma maior diversidade de fauna e quando este ambiente passa por uma degradação, sua fauna é comprometida. Esse fato, pode se dar pela exposição do ambiente a fatores adversos as condições anteriores, que irão alterar as condições que permitiam as formas de vida que ali habitavam. As características do ambiente e a sua condição de preservação vão determinar as espécies que ali podem habitar.

Reports on the topic "Annelids":

James, Sam. Earthworms (Annelida: Oligochaeta) of the Columbia River basin assessment area. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2000. http://dx.doi.org/10.2737/pnw-gtr-491.

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Tronstad, Lusha. Aquatic invertebrate monitoring at Agate Fossil Beds National Monument: 2019 data report. National Park Service, April 2022. http://dx.doi.org/10.36967/nrds-2293128.

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Monitoring ecosystems is vital to understanding trends over time and key to detecting change so that managers can address perturbations. Freshwater streams are the lifeblood of the surrounding landscape, and their health is a measure of the overall watershed integrity. Streams are the culmination of upland processes and inputs. Degradation on the landscape as well as changes to the stream itself can be detected using biota living in these ecosystems. Aquatic invertebrates are excellent indicators of ecosystem quality because they are relatively long-lived, sessile, diverse, abundant and their tolerance to perturbation differs. Aquatic invertebrates were monitored at three sites along the Niobrara River at Agate Fossil Beds National Monument in 2019 completing 23 years of data using Hester-Dendy and Hess samplers. Hess samplers are artificial multi-plate samplers suspended in the water column to allow invertebrates to colonize and Hess samples collect invertebrates in a known area on natural substrate and vegetation. We identified 45 invertebrate taxa from four phyla (Annelida, Arthropoda, Mollusca, Nematoda) using both samplers in the Niobrara River (Appendix A and B). Hester-Dendy samplers collected 4 taxa not found in Hess samples and Hess samples collected 17 taxa not collected with Hester-Dendy samplers. Hess samples captured more (91%) than Hester-Dendy samples (62%). Crustacea, Diptera and Ephemeroptera were the most abundant groups of invertebrates collected in the Niobrara River. The proportion of Insecta, Annelida, Trichoptera and Diptera differed between Hester-Dendy and Hess samples (p < 0.05). EPT richness, proportion EPT taxa and Hilsenhoff’s Biotic Index (HBI) (p < 0.0001) differed between sampler types, but taxa richness, taxa diversity and evenness (p > 0.29) did not. We collected the highest density of invertebrates at the Agate Middle site. Agate Spring Ranch had the lowest taxa richness and HBI, and the highest proportion of EPT taxa. HBI at the sites ranged from 4.0 to 6.3 (very good to fair from Hilsenhoff 1987) using the Hester-Dendy and 5.2 to 6.9 (good to fairly poor from Hilsenhoff 1987) using the Hess sampler.