Bibliografie tematiche / Oligochaeta

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Letteratura scientifica selezionata sul tema "Oligochaeta"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 30 luglio 2024

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Articoli di riviste sul tema "Oligochaeta"

1

WETZEL, MARK J. "Citations for the published proceedings of our 14 International Symposia on Aquatic Oligochaetes (1979–2018)". Zoosymposia 17, n. 1 (17 febbraio 2020): 188–89. http://dx.doi.org/10.11646/zoosymposia.17.1.15.

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These special publications, below, present overviews of and papers presented during our triennial international symposia on aquatic oligochaete biology. Three similar names for our symposia have been used since we began as a group in 1979: International Symposium on Aquatic Oligochaete Biology (ISAOB), International Symposium on Aquatic Oligochaetes (ISAO), and International Symposium on Aquatic Oligochaeta (ISAO).
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Atanackovic, Ana, Katarina Zoric, Jelena Tomovic, Bozica Vasiljevic e Momir Paunovic. "Distributional patterns of aquatic Oligochaeta communities (Annelida: Clitellata) in running waters in Serbia". Archives of Biological Sciences 72, n. 3 (2020): 359–72. http://dx.doi.org/10.2298/abs200303030a.

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The study of aquatic Oligochaeta in freshwaters in Serbia contributes to the oligochaete fauna inventory of the Balkans. Based on our results and literature review, 97 species (45 genera from 8 families) are listed in the running waters of Serbia. From the list of 61 species recorded during our investigation, 12 were noted for the first time. The ecological analysis of Oligochaeta communities showed the largest participation of potamal and rhithral species. As regards current preferences, rheolimnophilous species predominated, and with respect to feeding type, collectors prevailed. Most of the species are tolerant to moderate and high organic load. According to microhabitat preferences, three types of rivers stood out, as follows: (1) pelophilous (dominance of L. hoffmeisteri); (2) psammophilous (dominance of S. heringianus); (3) phytophilous (dominance of N. bretscheri). Analyses of the relation to different types of waterbodies showed regularity in the distribution of oligochaetes, with a higher species richness in main watercourses (types 1 and 2), and a lower species richness in tributaries (types 3, 4 and 6). According to the dominant taxa, the running waters of Serbia can be classified into four groups which are characterized by the prevalence of naidids (naidins and tubificins), enchytraeids and lumbriculids. Our results show that community composition is a good indicator of the horizontal distribution of Oligochaeta.
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Corbi, Juliano José, Mário A. Jancso, Susana Trivinho Strixino e Evelise N. Fragoso. "Occurence of oligochaeta living on larvae of odonata from ipeúna (São Paulo state, Brazil)". Biota Neotropica 4, n. 2 (2004): 1–3. http://dx.doi.org/10.1590/s1676-06032004000200017.

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The occurrence of oligochaetes species living on larvae of Odonata is reported for the first time. There were found Nais variabilis (Piguet, 1906) (Oligochaeta: Naididae) and Chaetogaster diastrophus (Gruithuisen, 1828) (Oligochaeta: Naididae) living on Elasmothemis cannacrioides (Calvert, 1906) (Anisoptera: Libellulidae) and on Mnesarete (Cowley, 1934) (Zygoptera: Calopterygidae).
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Brinkhurst, R. O., e D. McKey-Fender. "The anatomy of the pharynx of two predatory aquatic oligochaetes". Canadian Journal of Zoology 69, n. 3 (1 marzo 1991): 669–75. http://dx.doi.org/10.1139/z91-098.

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The genera Haplotaxis (Haplotaxidae) and Phagodrilus (Lumbriculidae) have convergent modifications of the pharynx that are adaptations for ingesting prey, especially other oligochaetes. Neither these taxa nor the predatory lumbriculid Agriodrilus (which is not closely related to Phagodrilus within that family) need be considered to be directly related to the leeches or branchiobdellidans simply because of these modifications. The commensal and predatory life style has evolved quite independently in several oligochaetes. Haplotaxis does not have a furrow across the prostomium as previously described. The prostomium consists of a very short bulb on the end of a peristomium, which is elongate dorsally and divided by the first obvious external transverse groove. In the Oligochaeta the peristomium is considered by convention to be segment I, but in the Polychaeta segment numbers begin with the first setiger (regarded as II in Oligochaea). In leeches the prostomium is counted as I.
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ŠUNDIĆ, DANIJELA, BRANKO M. RADUJKOVIĆ e JASMINA KRPO-ĆETKOVIĆ. "Catalogue of Naidinae and Pristininae (Annelida: Oligochaeta: Naididae) with twenty species new for Montenegro". Zootaxa 2737, n. 1 (12 gennaio 2011): 1. http://dx.doi.org/10.11646/zootaxa.2737.1.1.

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The Oligochaeta occurring in Montenegrin freshwaters were studied in order to contribute to a better knowledge of this group in the region. The oligochaetes from rivers, lakes, reservoirs, creeks, and springs, belonging to the Black Sea and the Adriatic Sea drainage basins, were investigated. Samples of sediments were taken from 54 sampling sites during three years of research (2005–2008). We confirmed the presence of formerly reported species and found 20 species new for the Montenegrin oligochaete fauna: Chaetogaster cristallinus, C. diaphanus, C. langi, C. setosus, Nais behningi, N. bretscheri, N. elinguis, N. simplex, N. stolci, Ophidonais serpentina, Paranais frici, P. litoralis, Piguetiella blanci, Pristina bilobata, P. jenkinae, P. longiseta, P. osborni, P. proboscidea, Slavina appendiculata, and Uncinais uncinata. Accordingly, the fauna of Naidinae and Pristininae in Montenegro now consists of 36 species.
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ARSLAN, NAIME, DENIZ KARA, CANSEV AKKAN KÖKÇÜ e MELIH RÜZGAR. "Aquatic Oligochaeta (Annelida) of Dam Lakes Çatören and Kunduzlar (Turkey) ". Zoosymposia 9, n. 1 (12 giugno 2014): 70–76. http://dx.doi.org/10.11646/zoosymposia.9.1.12.

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Çatören and Kunduzlar Dam Lakes, located on Seydi River, represent the main irrigation water resources of the Seyitgazi District (Eskişehir Province), in west-central Turkey. The river and the reservoirs are both under the threat of pollution primarily originating from several domestic point source discharges and land-based runoff. The numerical and proportional distributions of oligochaetes in Çatören and Kunduzlar Dam Lakes were surveyed seasonally in 2010 and 2011 at two stations on each lake. According to the results of this study, the benthic invertebrate fauna of Çatören Dam Lake consisted of Oligochaeta (40.2 %), Chironomidae larvae (32.2 %) and the varia (27.6 %); the benthic invertebrate fauna of Kunduzlar Dam Lake consisted of Oligochaeta (56.7 %), Chironomidae larvae (18.2 %) and the varia (25.1%). By evaluating the data via a Shannon-Wiener index it was found that the Çatören Dam Lake had an index of 2.32; while Kunduzlar Dam Lake had an index of 3.27. Several physicochemical water quality parameters were also analyzed during this study. The relationships between the dynamics of organisms and environmental parameters were supported by Pearson correlation index. It was determined that Çatören and Kunduzlar Dam Lakes waters were polluted and slightly polluted, respectively. The dominance and abundance of oligochaete species and low species richness showed that similar studies should be carried out periodically in Çatören and Kunduzlar Dam Lakes for the future monitoring of the dam lakes.
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Atanacković, Ana, Nataša Popović, Nikola Marinković, Jelena Tomović, Jelena Đuknić, Jelena Stanković e Momir Paunović. "Effects of Environmental Factors on the Distribution and Diversity of Aquatic Oligochaetes". Water 15, n. 22 (7 novembre 2023): 3873. http://dx.doi.org/10.3390/w15223873.

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The aim of our study was to detect the actual distribution of oligochaete species and to identify their ecological differentiation with respect to environmental factors: altitude, temperature, oxygen concentration, conductivity, total organic carbon, and waterbody type. Although widespread, differentiation of oligochaete communities in four waterbody types and altitudinal groups can be observed through alpha and beta diversity. Their differences were analyzed using MANOVA, while the ecological preferences of species were presented with logistic Gaussian regression analyses. The highest number of the species of Oligochaeta was recorded in oligochaete communities in medium and large rivers. Total beta diversity decreased with the decreasing of waterbody size, the increasing of size of the substrate particles, river flow velocity, as well as altitude. Communities from small mountain rivers and streams and large and medium rivers with coarser substrate differed from other oligochaete communities. When coarser substrate was prevalent in smaller and medium rivers, a domination of a certain family was observed: Lumbriculidae (>800 m a.s.l.), Propappidae and Enchytraeidae (500–800 m), and Naididae (<500 m a.s.l.). Common species of Oligochaeta, with significantly overlapping ranges in running waters in Serbia, still show a clear grouping with respect to preference for certain types of waterbodies.
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SCHMELZ, RÜDIGER M., CHRISTER ERSÉUS, PATRICK MARTIN, TON VAN HAAREN e TARMO TIMM. "A proposed order-level classification in Oligochaeta (Annelida, Clitellata)". Zootaxa 5040, n. 4 (23 settembre 2021): 589–91. http://dx.doi.org/10.11646/zootaxa.5040.4.9.

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The purpose of our contribution is to propose a robust and practical order-level classification of the families of Oligochaeta, that is, non-leech Clitellata. The order level is mandatory in Linnaean rank-based classification and is also required in many internet-based biodiversity databases. However, it has received little attention in oligochaete systematics, and the few available order-level classifications of Oligochaeta no longer represent phylogenetic relationships adequately. Our proposal is based on corroborated molecular phylogenetic evidence and takes as benchmarks class level for Clitellata, subclass level for Oligochaeta and Hirudinea, and order level for Crassiclitellata, the monophylum that includes most of the earthworm taxa. As a result, eleven orders are proposed: Alluroidida Timm & Martin, 2015; Capilloventrida Timm, n. ordo; Crassiclitellata Jamieson, 1988; Enchytraeida Kasprzak, 1984; Haplotaxida Brinkhurst & Jamieson, 1971; Lumbriculida Brinkhurst & Jamieson, 1971; Moniligastrida Brinkhurst & Jamieson, 1971; Narapida Timm, n. ordo; Parvidrilida Timm, n. ordo; Randiellida Jamieson, 1988; Tubificida Jamieson, 1978. This order-level classification is robust and easily adaptable to future insights into phylogenetic relationships.
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PINDER, ADRIAN, MARK WETZEL e NAIME ARSLAN. "Preface: 12th International Symposium on Aquatic Oligochaeta". Zoosymposia 9, n. 1 (12 giugno 2014): 4–5. http://dx.doi.org/10.11646/zoosymposia.9.1.3.

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This volume is the proceedings for the 12th International Symposium on Aquatic Oligochaeta (ISAO), held inFremantle Western Australia from the 10th to the 13th of September 2012. This was the latest in a series oftriennial symposia that began in May 1979 when 31 researchers met for four days in Sidney, BritishColumbia, Canada, hosted by Ralph Brinkhurst, then of the Institute of Ocean Sciences who has played apivotal role in the field of oligochaete research for many decades. That first meeting set the scene for regularcollegiate gatherings of oligochaetologists that have spawned many collaborations and scientific advancesover the past 35 years. Continuity in the oligochaete research community is shown by the fact that four of theresearchers that attended the 1979 symposium joined us in Fremantle.
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PINDER, ADRIAN, NAIME ARSLAN e MARK WETZEL. "Proceedings of the 12th International Symposium on Aquatic Oligochaeta". Zoosymposia 9, n. 1 (12 giugno 2014): 1–2. http://dx.doi.org/10.11646/zoosymposia.9.1.1.

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Abstract (sommario):
This volume is the proceedings for the 12th International Symposium on Aquatic Oligochaeta (ISAO), held in Fremantle Western Australia from the 10th to the 13th of September 2012. This was the latest in a series of triennial symposia that began in May 1979 when 31 researchers met for four days in Sidney, British Columbia, Canada, hosted by Ralph Brinkhurst, then of the Institute of Ocean Sciences who has played a pivotal role in the field of oligochaete research for many decades. That first meeting set the scene for regular collegiate gatherings of oligochaetologists that have spawned many collaborations and scientific advances over the past 35 years. Continuity in the oligochaete research community is shown by the fact that four of the researchers that attended the 1979 symposium joined us in Fremantle.
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Più fonti

Tesi sul tema "Oligochaeta"

1

Er-Rai, Hakima. "Bilan énergétique de Eudrilus eugeniae (Oligochaeta, Eudrilidae)". Doctoral thesis, Universite Libre de Bruxelles, 1996. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/212398.

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2

Rennebeck, Gabriela Maria. "Estrutura quaternaria da hemoglobina de Glossoscolex paulistus (oligochaeta - glossoscolecidae)". [s.n.], 1990. http://repositorio.unicamp.br/jspui/handle/REPOSIP/316570.

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Orientador : Benedito Oliveira
Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
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Resumo: A hemoglobina extracelular de Glossoscolex paulistus (0ligochaeta - glossoscolecidae) apresenta peso molecular aproximado de 3.106 e é formada por cinco unidades principais de: 70kOa, 50kOa, "kDa, 28kOa e 12kDa. Estudos eletroforéticos em poliacrilamida (PAGE/SDS) evidenciaram ser a unidade 70kDa o tetrâmero formado por quatro cadeias polipeptídicas de 16kDa, a unidade 50kDa o trímero formado por três cadeias de 16kDa, as unidades 33 e 28kDa dímeros de cadeia única e a unidade 12kDa o monômero, a menor unidade encontrada nas hemoglobinas de invertebrados. A hemoglobina nativa (pH 7,4) apresenta afinidade pelo oxigênio (P50 = 6.6 torr) maior que a hemoglobina humana e menor do que a mioglobina. A hemoglobina dissociada em pH alcalino apresenta menor afinidade pelo oxigênio sendo necessário quantidade de O2 maiores para saturar 50% dos grupamentos heme. A ligação do oxigênio na hemoglobina dissociada é irreversível sendo necessário o tratamento com ditionito de sódio para que ocorresse a desoxigenação. Através da filtração da hemoglobina dissociada em gel de Sephadex G-200, foi possível isolar o monômero 12kDa. Esse monômero apresenta homologia com a mioglobina e sua afinidade pelo oxigênio é similar a mioglobina. Estudos imunoquímicos indicaram a identidade antigênica parcial entre o monômero 12kDa e o trímero 50kDa, sugerindo que possivelmente as cadeias polipeptídicas que formam o trímero são homólogas às cadeias monoméricas a nível de seqüência primária. Este resultado sugere que as unidades que formam o complexo final partilham de um gene ancestral comum e que por pressão evolutiva se agregaram a fim de optimizar o transporte do oxigênio. Um modelo localizando as unidades dentro do complexo total é sugerido indicando que as unidades funcionais se encontram no centro da molécula e são protegidas da oxidação pelos polipeptídeo estruturais que se encontram por toda a superfície da molécula
Mestrado
Genetica
Mestre em Ciências Biológicas
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Smith, David P. (David Paul) 1956. "Responses of Pristina leidyi Smith 1896 (Naididae: Oligochaeta) to Cadmium, Vanadium, and Some Environmental Factors". Thesis, University of North Texas, 1990. https://digital.library.unt.edu/ark:/67531/metadc500695/.

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Concern over sediment toxicity has increased the need for toxicity test information with organisms that inhabit sediments. Oligochaetes are exposed to toxicants through feeding and direct body contact with aquatic sediments. Chronic testing with oligochaetes has historically focused on tubificids with test lengths of one year or more to encompass several generations. Most naidid oligochaetes have generation times of three to seven days and could provide chronic information in a matter of weeks. The cosmopolitan distributed naidid, Pristina leidyi, was evaluated for use as a toxicity test organism. Results of research conducted includes culture methods, effects of temperature on reproduction, growth rates in a reference sediment, acute toxicity tests, and chronic toxicity tests.
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Stephan, Nilo Nélio Caixeiro. "Distribuição espacial e temporal dos insetos e Oligochaeta aquáticos da sub-bacia do Córrego São Pedro, Juiz de Fora, Minas Gerais". Universidade Federal de Juiz de Fora (UFJF), 2007. https://repositorio.ufjf.br/jspui/handle/ufjf/4465.

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FAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
Para se conhecer a variação espacial e temporal da fauna de Oligochaeta e insetos aquáticos e utilizar as informações obtidas para caracterizar a qualidade ambiental da subbacia do Córrego São Pedro (integrante da bacia de drenagem do Rio Paraibuna, em Juiz de Fora, Minas Gerais) foram realizadas, entre maio de 2005 e maio de 2006, coletas do sedimento em cinco pontos ao longo deste curso d’água, obtendo-se um total de 143359 espécimes distribuídas em 88 táxons. Os Oligochaeta foram representados por 4 famílias (Tubificidae, Naididae, Opistocystidae e Enchytraeidae) e 29 espécies. A família Tubificidae, a mais abundante, foi constituída por 7 espécies, sendo Limnodrilus hoffmeisteri, a espécie de maior representatividade numérica. Nesta família, os indivíduos imaturos foram responsáveis por 57% da fauna total. Os insetos foram representados por 26 famílias, sendo Chironomidae a mais abundante. Os indivíduos do gênero Chironomus contribuíram com 98% da entomofauna. Resultado do teste não paramétrico de Kruskalwallis indicou existir diferenças significativas (P< 0,05) na composição e estrutura da fauna entre os pontos de coleta. Teste de sinais de Wilcoxon indicou que houve diferença significativa (p< 0,05) da fauna nos períodos seco e chuvoso. A estrutura e composição faunística, bem como as variáveis físicas e químicas analisadas mostraram a existência de impactos e alterações antrópicas na sub-bacia do Córrego São Pedro.
In order to obtain information about the spatial and temporal variation of Oligochaeta fauna and aquatic insects and to use this information to characterize the environmental quality of Córrego São Pedro Subbasin (which is part of the drainage basin of Paraibuna River, Juiz de Fora city, Minas Gerais state, Brazil) we collected sediment samples at 5 spots along the course of this river. Sampling was carried out between May 2005 and May 2006, and we gathered a total of 143359 species distributed among 88 taxa. Oligochaeta were represented by 4 families (Tubificidae, Naididae, Opistocystidae, and Enchytraeidae) and 29 species. The Tubificidae family, the most abundant one, was composed of 7 species, among which Limnodrilus hoffmeisteri was the most representative in number. Immature individuals made up 57% of the total Tubificidae fauna. Insects were represented by 26 families, among which Chironomidae was the most abundant. Individuals from the genus Chironomus made up 98% of the enthomofauna. The results of the non-parametric Kruskal-wallis test showed a significative difference (P<0.05) in composition and structure of the fauna between collection spots. The Wilcoxon signal test indicated a significative difference (p<0.05) for the fauna during dry and rainy periods. Faunistic structure and composition, as well as the physical and chemical variables analised showed the existence of anthropic impacts and changes in Córrego São Predro Subbasin.
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Bezerra, Emerson de Azevedo Silva. "Análise filogenética dos Glossoscolecidae (ANNELIDA, EUCLITELLATA)". Universidade Federal da Paraí­ba, 2013. http://tede.biblioteca.ufpb.br:8080/handle/tede/4114.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
We conducted a study on the phylogenetic relationships of Glossoscolecidae through the henniguian method of data processing. We used morphological characters obtained from references and through observation of animals deposited in collections. A total of 45 characters were selected from 61 terminal taxa. Multiple outgroups were selected (Alluroididae, Haplotaxidae, Hrabeiella periglandulata, Lumbriculidae, Moniligastridae, and Monotesticulata Syngenodrilidae). The phylogenetic analysis was performed using the software Mesquite (version 2.75) and TNT (version 1.1). The characters were coded, whenever possible, as multiestates and absences as apomorphies. The data were treated as unordered and ordered. At TNT, we compared the results of two algorithms (Traditional Search and New Technology Search). The strict consensus trees with ordered characters not supported the monophyly of Glossoscolecidae. Only with characters unordered, the taxon was supported by the presence of sphincter in nephridia. In general, there were no differences in outcomes between the use of software Mesquite and TNT and the use of the algorithm Traditional Search and New Technology Search. We propose the following positioning Glossoscolecidae between the Euclitellata: Lumbricina: (Hormogastridae (Microchaetidae + Glossoscolecidae)) + Megascolecoidea + Lumbricidae + Kynotidae + (Sparganophilidae (Almidae + Criodrilidae)).
Realizou-se um estudo das relações filogenéticas de Glossoscolecidae através do método hennigiano de tratamento de dados. Foram utilizados caracteres morfológicos obtidos em bibliografias e através da observação de animais depositados em coleções. Um total de 45 caracteres foram selecionados, e 61 táxons terminais. Multiplos grupos-externo foram selecionados (Alluroididae, Haplotaxidae, Hrabeiella periglandulata, Lumbriculidae, Moniligastridae, Monotesticulata e Syngenodrilidae). A análise filogenética foi realizada com o uso dos softwares Mesquite (versão 2.75) e TNT (versão 1.1). Os caracteres foram codificados em multiestados sempre que possível e ausências como apomorfias. Os dados foram tratados como não-ordenados e ordenados. No TNT, comparou-se os resultados de dois algoritmos (Traditional Search e New Technology Search). As árvores de consenso estrito com caracteres ordenados não sustentou a monofilia de Glossoscolecidae. Apenas com os caracteres não-ordenados, o táxon foi sustentando pela presença de esfíncter nos nefrídios. Em geral, não houve diferenças nos resultados entre o uso do software Mesquite e TNT e entre o uso do algoritmo Traditional Search e New Technology Search. Propomos o seguinte posicionamento de Glossoscolecidae entre os Euclitellata: Lumbricina: (Hormogastridae (Microchaetidae + Glossoscolecidae)) + Megascolecoidea + Lumbricidae + Kynotidae + (Sparganophilidae (Almidae + Criodrilidae)).
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Breidenbach, Josef. "Normalanatomie und -histologie des Lumbriciden Lumbricus terrestris L. (Annelida, Oligochaeta)". [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=967450195.

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7

Tiho, Seydou. "Les communautés de lumbricidae (Oligochaeta) de l'avenue Roosevelt (Bruxelles, Belgique)". Doctoral thesis, Universite Libre de Bruxelles, 2001. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211665.

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8

Nascimento, Haroldo Lobo dos Santos. "Branchiura sowerbyi (Oligochaeta, Naididae) como espécie-teste em bioensaios ecotoxicológicos". Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/18/18139/tde-17112014-131007/.

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Estudos com oligoquetas aquáticos aplicados à ecotoxicologia são quase inexistentes no Brasil, embora diversas agências reguladoras já tenham demonstrado interesse na inclusão da espécie Branchiura sowerbyi (Oligochaeta, Naididae) em protocolos de monitoramento de ambientes aquáticos tropicais. Com o objetivo de ampliar o conhecimento sobre o potencial de utilização desta espécie em ensaios ecotoxicológicos, efetuou-se ampla revisão bibliográfica entre 1950 e 2012, verificando-se discrepâncias metodológicas, o uso quase exclusivo da matriz água e a inserção da turfa como fonte de matéria orgânica nos testes com sedimento artificial, recomendado como forma de reduzir a diferença entre os diversos tipos de sedimento avaliados. A partir desta revisão, bioensaios de toxicidade com sedimento natural e artificial (SAT, com a fibra de coco em substituição à turfa) foram realizados para avaliar a sobrevivência, crescimento e reprodução de B. sowerbyi. Posteriormente, testes de toxicidade aguda e crônica (incluindo a bioacumulação) foram realizados com B. sowerbyi eTubifex tubifex (espécie com uso padronizado) para avaliar os efeitos dos metais arsênio e zinco. Pelos resultados obtidos verifica-se que a reprodução e taxa de crescimento de B. sowerbyi, quando mantida em SAT (número de casulo: 2 ± 0,01; taxa de crescimento diário: - 0,44 ± 0,24%), foram inferiores (p < 0,05) em relação ao sedimento natural (número de casulos: 19,00 ± 6,24; taxa de crescimento diário: 0,35 ± 0,24%), demonstrando que o sedimento natural é mais favorável ao cultivo da espécie. Nos testes com metais, B. sowerbyi aparentou ser mais sensível ao arsênio e ao zinco, do que a espécie Tubifex tubifex, com valores de CL50 e CE50 inferiores aos observados para T. tubifex (CL50(96h): 297 ± 24,50 μmolAs·L-1 e 14,89 ± 1,01 μmolZn·L-1 para B. sowerbyi, contra > 1577,43 μmolAs·L-1 e 132,51 ± 12,95 μmolZn·L-1 para T. tubifex e CL50(14d): 4,28 ± 0,03 e 9,72 ± 0,38 μmolAs·g-1 para B. sowerbyi e T. tubifex, respectivamente). A partir da análise das metodologias utilizadas para as duas espécies e daquelas sugeridas em trabalhos publicados com B. sowerbyi, elaborou-se um protocolo para realização de bioensaios com a espécie B. sowerbyi em condições tropicais.
Aquatic oligochaetes studies applied to ecotoxicology are rare in Brazil, although several regulatory agencies had shown interest in the inclusion of the species B. sowerbyi (Oligochaeta, Naididae) in the tropical aquatic ecosystems monitoring. Aiming to increase the knowledge about the potential use of this species on ecotoxicological bioassays, an extensive literature review from 1950 to 2012 was performed, verifying methodological discrepancies; the majority use of the water sample and the insertion of peat as a source of organic matter on the bioassays with artificial sediment, which it is recommended to reduce the difference between the sediment samples that were collected from different places. From this review, toxicity bioassays with natural and artificial sediments (SAT, with coir instead of peat) were made to evaluate the survival, growth and reproduction of B. sowerbyi. After that, acute and chronic bioassays were made with B. sowerbyi and Tubifex tubifex (a standardized species) to evaluate the effects of arsenic and zinc. The results showed that the reproduction and growth rate of B. sowerbyi, kept in SAT (number of cocoons: 2 ± 0.01; daily growth rate: - 0.44 ± 0.24%), were smaller (p < 0.05) compared to the natural sediment (number of cocoons: 19.00 ± 6.24; diary growth rate: 0.35 ± 0.24%), showing that the natural sediment is more favorable to the cultivation of this species. In the bioassays with metals, B. sowerbyi appeared to be more sensible to arsenic and zinc than T. tubifex (CL50(96h): 297 ± 24.50 μmolAs·L-1 and 14.89 ± 1.01 μmolZn·L-1 to B. sowerbyi, against > 1577.43 μmolAs·L-1 and 132.51 ± 12.95 μmolZn·L-1 to T. tubifex and CL50(14d): 4.28 ± 0.03 and 9.72 ± 0.38 μmolAs·g-1 to B. sowerbyi and T. tubifex, respectively). From the analysis of the methodological approaches from the two species and from those suggested by other studies with B. sowerbyi, a bioassay protocol for the species B. sowerbyi was elaborated.
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Johnson, Paul James. "Ecological studies on the Enchytraeidae (Oligochaeta) of streams in southern England". Thesis, University of Reading, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252674.

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Bonafé, Carlos Francisco Sampaio 1961. "Estudos bioquimicos e fisicos de hemoglobina extracelular de Glossoscolex paulistus (Oligochaeta)". [s.n.], 1988. http://repositorio.unicamp.br/jspui/handle/REPOSIP/314583.

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Orientadores : Nilce Correa Meirelles, Iris Linares de Torriani
Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
Made available in DSpace on 2018-07-14T03:38:55Z (GMT). No. of bitstreams: 1 Bonafe_CarlosFranciscoSampaio_M.pdf: 3201683 bytes, checksum: f8eb49e24c12e533f509d4b48603a71b (MD5) Previous issue date: 1988
Resumo: Glossoscolex pauHstus (Oligochaeta, Glossoscolecidae) é um anelídeo que vive no solo em regiões calcáreas no Estado de São Paulo, e tem uma hemeproteína gigante extracelular que ocorre dissolvida no sangue. Esse tipo de pigmento respiratório é denominado eritrocruorina, e é observado à microscopia eletrônica como dois discos hexagonais sobrepostos, cada um contendo seis subunidades, com uma cavidade central. No presente trabalho estudou-se afinidade da eritrocruorina pelo oxigênio em presença do cátion bivalente magnésio, observando-se aumento de afinidade e cooperatividade. Determinou-se o coeficiente de sedimentação de 58 S, e estimou-se o peso molecular de 3,23 x 106 Da. Encontrou-se peso molecular mínimo de 25250 Da, alto comparativamente ao das hemoglobinas tetraméricas e mioglobinas, sugerindo a presença de subunidades que não carreiam o heme, a exemplo de outras eritrocruorinas. A abordagem com espalhamento de raios X a baixo ângulo levou a parâmetros estruturais de baixa resolução com raio de giro de cerca de 11,4 nm e dimensão máxima da molécula
Abstract: Glossoscolex paulistus (Oligochaeta, Glossoscolecidae) is an earthworm which dwells in limestone regions in São Paulo State, and has a giant extracellular hemeprotein that occurs in the blood. This type of respiratory pigment is called erythrocruorin, and is examined with the aid of electronic microscopy as two hexagonal superimposed disks, each one having six subunits and a central cavity. This thesis studies the affinity of erythrocruorin with oxygen in the presence of the divalent cation magnesium: an increase of affinity and cooperativity is observed. The sedimentation coefficient was found to be 58 S, and the molecular weight approximately 3.23 x 106 Da. The minimum molecular weight determined, 25,250 Da, was relatively high compared with those of tetrameric hemoglobins and mioglobins, thus suggesting the presence of subunits not carrying a heme group as is the case with other erithrocruorins. Small angle X-ray scattering experiments led to the determination of low resolution dimensional parameters such as the radius of giration (11.4 nm) and maximum molecular dimension (27 nm)
Mestrado
Bioquimica
Mestre em Ciências Biológicas
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Libri sul tema "Oligochaeta"

1

Brinkhurst, Ralph O., e Robert J. Diaz, a cura di. Aquatic Oligochaeta. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3091-9.

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O, Brinkhurst Ralph, Diaz R. J e International Symposium on Aquatic Oligochaeta (3rd : 1985 : Hamburg, Germany), a cura di. Aquatic Oligochaeta. Dordrecht: W. Junk, 1987.

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3

Uzunov, Yordan I. Aquatic oligochets (oligochaeta limicola): Annelida : aphanoneura, oligochaeta, branchiobdellea. Sofia: Professor Marin Drinov Academic Publishing House, 2010.

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4

Krodkiewska, Mariola. Zgrupowania skąposzczetów dennych (Oligochaeta) Kanału Gliwickiego i Kanału Kędzierzyńskiego oraz związanych z nimi zbiorników antropogenicznych. Katowice: Wydawn. Uniwersytetu Śląskiego, 2010.

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Krodkiewska, Mariola. Zgrupowania skąposzczetów dennych (Oligochaeta) Kanału Gliwickiego i Kanału Kędzierzyńskiego oraz związanych z nimi zbiorników antropogenicznych. Katowice: Wydawn. Uniwersytetu Śląskiego, 2010.

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Julka, J. M. Earthworms (Oligochaeta : Annelida) of Orissa, India. Calcutta: Zoological Survey of India, 1987.

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7

Csuzdi, Csaba. Earthworms of Hungary: (Annelida : Oligochaeta, Lumbricidae). Budapest: Hungarian Natural History Museum, 2003.

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Csuzdi, Csaba. A monograph of the Paleotropical Benhamiinae earthworms (Annelida: Oligochaeta, Acanthodrilidae). Budapest: Hungarian Natural History Museum, 2010.

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9

International Symposium on Aquatic Oligochaetes (7th 1997 Presque Isle, Maine). Aquatic oligochaetes: Proceedings of the 7th International Symposium on Aquatic Oligochaetes held in Presque Isle, Maine, USA, 18-22 August 1997. A cura di Healy Brenda M, Reynoldson Trefor B e Coates K. A. Dordrecht: Kluwer Academic Publishers, 1999.

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Timm, T. Maloshchetinkovye chervi (Oligochaeta) vodoemov Severo-Zapada SSSR. Tallin: "Valgus", 1987.

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Capitoli di libri sul tema "Oligochaeta"

1

Omodeo, Pietro. "Some new species of Haplotaxidae (Oligochaeta) from Guinea and remarks on the history of the family". In Aquatic Oligochaeta, 1–13. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3091-9_1.

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Juget, J. "Contribution to the study of the Rhyacodrilinae (Tubificidae, Oligochaeta), with description of two new stygobiont species from the alluvial plain of the French upper Rhone, Rhyacodrilus amphigenus, sp. n. and Rhizodriloides phreaticola, g. n., sp. n." In Aquatic Oligochaeta, 107–18. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3091-9_10.

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Dzwillo, Michael. "Oligochaetes and oligochaete research in the Zoological Museum and Institute, Hamburg". In Aquatic Oligochaeta, 119. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3091-9_11.

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Graefe, Ulfert, e Jörg Römbke. "Newsletter on Enchytraeidae. I. Checklist of new taxa 1960–1985". In Aquatic Oligochaeta, 121. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3091-9_12.

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Ferraguti, Marco, e Barrie G. M. Jamieson. "Spermiogenesis in Bythonomus lemani and the phylogenetic position of the Lumbriculidae (Oligochaeta, Annelida)". In Aquatic Oligochaeta, 123–34. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3091-9_13.

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de Eguileor, Magda, Giulio Lanzavecchia, Roberto Valvassori e Plinio Lanzavecehia. "Unusual model of lumbriculids’ helical muscles: comparison with body wall muscles in other microdriles". In Aquatic Oligochaeta, 135–44. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3091-9_14.

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Casellato, Sandra, Giambruno Martinucci e Emanuela Zoja. "Ultrastructural features of gametogenesis during the life cycle in Branchiura sowerbyi Beddard (Oligochaeta, Tubificidae)". In Aquatic Oligochaeta, 145–54. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3091-9_15.

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Gnaiger, Erich, Rüdiger Kaufmann e Inge Staudigl. "Physiological reactions of aquatic oligochaetes to environmental anoxia". In Aquatic Oligochaeta, 155. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3091-9_16.

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Hoffmann, Klaus H., Erich Hipp e Ulrich A. Sedlmeier. "Aerobic and anaerobic metabolism of the freshwater oligochaete Tubifex sp." In Aquatic Oligochaeta, 157–58. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3091-9_17.

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Giere, Olav, e Birgit Rhode. "Anatomy and ultrastructure of the marine oligochaete Tubificoides benedii (Tubificidae), with emphasis on its epidermis-cuticle-complex". In Aquatic Oligochaeta, 159. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3091-9_18.

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Atti di convegni sul tema "Oligochaeta"

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Zhu, Jiang, Daoli Yang, Rongbing Fu, Wenhua Wang, Xiaopin Guo e Hongwei Yao. "Hormetic Effects of Mercury on Survival of Eisenia fetida (Oligochaeta)". In International Conference On Civil Engineering And Urban Planning 2012. Reston, VA: American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412435.055.

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2

Sekulić, Jovana, Mirjana Stojanović, Tanja Trakić, Slobodanka Radosavljević e Filip Popović. "DIVERSITY OF EARTHWORMS (CLITELLATA: OLIGOCHAETA) FROM SERBIAN SIDE OF ŠAR MOUNTAIN". In 1st INTERNATIONAL Conference on Chemo and BioInformatics. Institute for Information Technologies, University of Kragujevac, 2021. http://dx.doi.org/10.46793/iccbi21.198s.

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This paper presents the currently known records on the diversity of earthworm fauna on Šar Mountain. The Šar Mt. is located in the south part of Serbia and is a part of the Šar-Pindus Mountain system. The complete list of present taxa of the family Lumbricidae in the researches area was formed by reviewing data from old collections, relevant literary sources and by its own field research in the period from 2019 to 2020. The list comprises 24 taxa, belonging to 10 genera of the family Lumbricidae. The genera with the largest number of the registered taxa are Dendrobaena (7) and Aporrectodea (5), while the genera Bimastos, Eiseniella, Helodrilus, Octodrilus and Octolasion are represented by one taxon. With respect to the zoogeographical analysis, the majority of the recorded taxa belong to the group of peregrine species (12). The endemic species are represented by two taxa and belong to the genera Dendrobaena and Helodrilus. The Balkan endemic subspecies Helodrilus balcanicus plavensis (Karaman, 1972) and illyric Dendrobaena illyrica (Cognetti, 1906), were recorded on new sites from the Šar Mt., that represent the southernmost limits of the geographical range of these species at the moment.
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Sekulić, Jovana, Mirjana Stojanović, Tanja Trakić e Filip Popović. "RESEARCH ON THE FAUNA OF EARTHWORMS (OLIGOCHAETA, LUMBRICIDAE) IN ĐERDAP NATIONAL PARK". In 1st INTERNATIONAL Conference on Chemo and BioInformatics. Institute for Information Technologies, University of Kragujevac, 2021. http://dx.doi.org/10.46793/iccbi21.202s.

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Đerdap National Park is located in the southeastern part of Europe, in the northeastern part of Serbia, on the border with Romania. This paper presents the currently known records on the diversity of earthworm fauna in Đerdap National Park. The number of species from family Lumbricidae known to be occurring in the studied region is 29 species from 11 genera. The genera with the largest number of the registered taxa are Dendrobaena (8) and Aporrectodea (7). A third of all species are peregrines (37.93%). Trans-Aegean species take part with 13.8%, followed by endemic, Central European, Balkanic-Alpine (10.34%). Then follow Illyric (6.90%) and slightly less Moesian, Circum- Mediterranean, and Southern-Alpine (3.45%). Endemic species take a part with three taxa. Only one species (Allolobophora mehadiensis boscaiui (Pop, 1948)) is Dacian endemic. The obtained results indicate a diverse Lumbricidae fauna. It is certainly necessary to continue with intensive research in order to preserve the biological diversity of this area.
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Eropova, I. O., V. V. Takhteev, N. A. Rozhkova e E. R. Khadeeva. "FEATURES OF THE DISTRIBUTION OF BENTHIC COMMUNITIES OF MOUNTAIN WATER CURRENTS OF THE NORTHERN MACROSLOPE OF THE KHAMAR-DABAN RIDGE (EASTERN SIBERIA)". In V International Scientific Conference CONCEPTUAL AND APPLIED ASPECTS OF INVERTEBRATE SCIENTIFIC RESEARCH AND BIOLOGICAL EDUCATION. Tomsk State University Press, 2020. http://dx.doi.org/10.17223/978-5-94621-931-0-2020-15.

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The distribution of zoobenthos communities in six small mountain streams of the northern macroslope of the Khamar-Daban Ridge in the district between the Baikalsk city and the village Murino was investigated. There are 16 taxonomic groups registered in the communities. The dominant groups are most often Oligochaeta, Chironomidae (larvae and pupae), endemic Amphipoda, larvae of Trichoptera and Planariidae. The largest macrozoobenthos biomass was observed in ripal zone of the streams on heavily silted grounds, and the smallest – on sandy grounds with an admixture of silt and detritus at the fairly fast flow.
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Son, K. H., C. W. Ji, Y. M. Park, Y. Cui, H. Z. Wang, T. S. Chon e E. Y. Cha. "Recurrent Self-Organizing Map implemented to detection of temporal line-movement patterns of Lumbriculus variegatus (Oligochaeta: Lumbriculidae) in response to the treatments of heavy metal". In ENVIRONMENTAL TOXICOLOGY 2006. Southampton, UK: WIT Press, 2006. http://dx.doi.org/10.2495/etox060091.

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Almeida, Frederico Belei de, PATRICIA GIONGO e WAGNER MARTINS SANTANA SAMPAIO. "CONHECENDO OS MACROINVERTEBRADOS BENTONICOS DE UM AMBIENTE DE CABECEIRA DO RIO PARACATU". In II Congresso Brasileiro de Biodiversidade Virtual. Revista Multidisciplinar de Educação e meio ambiente, 2022. http://dx.doi.org/10.51189/ii-conbiv/6308.

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Introdução: A caracterização limnológica dos ambientes aquáticos é imprescindível para o conhecimento da diversidade e para a realização do diagnóstico ambiental durante a elaboração de estudos de impacto ambiental. Objetivo: O presente estudo buscou conhecer a comunidade de macroinvertebrados aquáticos dos diferentes mananciais existentes no rio Paracatu. Metodologia: Durante sete campanhas os organismos bentônicos foram amostrados com o auxílio da rede em D, com malha de 0,3 mm de abertura em ambientes com composições diferentes. Resultados: O resultado demonstrou um total de 3.003 indivíduos distribuídos em 77 táxons identificados em nível de família. A composição encontrada está dentro do esperado para o rio São Francisco, porém não existem estudos sistemáticos para a bacia do rio Paracatu. Os grupos mais relevantes foram os organismos associados a ambientes degradados como Diptera, Bivalvia, Gastropoda, Oligochaeta, Ostracoda, Hemiptera e Cercopidae, onde alguns destes representantes são introduzidas que podem causar prejuízo para esses habitats. Esses organismos são comuns à maioria dos habitats de água doce e muitas de suas espécies podem tolerar condições de hipóxia extrema, sendo bons indicadores de qualidade ambiental e em ambientes degradados e antropizados podem representar uma parcela significativa dos recursos do hábitat. Entre os grupos com o maior número de espécies invasoras estão os filos Arthropoda e Mollusca. Conclusão: Espécies como M. tuberculatus se estabilizaram e tornaram pragas em diversas regiões brasileiras gerando prejuízos que desestruturam o ecossistema aquático. A riqueza de macroinvertebrado encontrada no rio Paracatu está dentro do esperado para região e é condizente com o conhecimento da bacia do rio São Francisco.
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Carvalho, João Eduardo Vardiero, PATRÍCIA GIONGO, FREDERICO BELEI DE ALMEIDA e WAGNER MARTINS SANTANA SAMPAIO. "ANÁLISE DA COMUNIDADE DE MACROINVERTEBRADOS DO RIO SANTA CATARINA (BACIA DO RIO PARACATU) EM TRECHO SOB INFLUÊNCIA DE SECAMENTO". In II Congresso Brasileiro de Biodiversidade Virtual. Revista Multidisciplinar de Educação e meio ambiente, 2022. http://dx.doi.org/10.51189/ii-conbiv/6327.

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Introdução: O rio Paracatu é um dos principais afluentes da bacia do São Francisco, a terceira maior em extensão do Brasil. O rio Santa Catarina, afluente do rio Paracatu, está localizado na região de Vazante – MG. Alguns trechos recebem efluentes urbanos e, desde 2014, têm o secamento no período de estiagem como consequência de ações de mineração na região. Alterações antrópicas podem modificar a estrutura da comunidade de macroinvertebrados bentônicos no curso d’água, portanto, estudos sobre qualidade ambiental podem utilizar esse grupo como bioindicadores. Objetivos: O presente trabalho teve como objetivo estudar a comunidade de macroinvertebrados do Rio Santa Catarina, buscando avaliar a riqueza e abundância de um trecho do rio. Metodologia: Entre maio de 2019 e agosto de 2021, foram realizadas cinco campanhas de coleta no rio Santa Catarina. As amostragens foram feitas em 10 pontos, utilizando coletor tipo Surber. As amostras foram levadas ao laboratório para triagem, contagem e identificação dos organismos. Resultados: Ao todo foram registrados 84 táxons, o que está dentro do esperado para rios da bacia do São Francisco. As estações com maior riqueza foram SC01, P02, P01 e SC02 respectivamente, enquanto as com menor riqueza foram P0, SC06, SC04 e SC05. Alguns dos grupos de maior abundância, como Chironomidae, Bivalvia, Hirudinea e Oligochaeta, são oportunistas e tolerantes a alterações bruscas no ambiente. Em relação à densidade de organismos, destacam-se os grupos Chironomidae e Thiaridae, ambos indicadores de ambientes degradados. Durante as campanhas que apresentaram deplecionamento total, os pontos do trecho de secamento tiveram maiores índices de espécies generalistas e resultados mais baixos para riqueza e diversidade, principalmente nas estações mais antropizadas como a SC03, que sofre com destino de efluentes urbanos. Conclusão: Os resultados encontrados indicam a dominância de táxons típicos de ambientes antropizados. Através da análise da comunidade bentônica, observa-se que os efluentes urbanos e o secamento podem influenciar na composição das assembleias de organismos. Esses resultados possuem grande relevância para o rio Paracatu, que possui poucos dados científicos sobre sua comunidade de macroinvertebrados.
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Gabriela Ene, Alexandra, Mihaela Jomir e Carmen Mihai. "The incremental development of a collapsible aerial module for the management of the calamity generated by soil drought". In AHFE 2023 Hawaii Edition. AHFE International, 2023. http://dx.doi.org/10.54941/ahfe1004301.

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Extended areas of the planet are experiencing drought, a natural phenomenon that occurs due to a prolonged period of abnormally low rainfall or when water is insufficient. Drought is a critical global problem affecting the environment, economies and social well-being of communities around the world, with severe impacts on agriculture, wildlife, water supplies and public health.The most efficient technique for protecting the soil against pedological drought is represented by mulching, a technique that enables the preservation of the soil moisture (by reducing evaporation) and limitation of the weed growth (lack of light forces etiolation and exhaustion). In addition, considering that an extraordinary variety of living beings could be developed under the mulch, the most important being represented by the Oligochaeta taxon and Annelida family, through mulching, digging and loosening operations are eliminated.The paper presents the stages of the incremental iterative development of a collapsible aerial module used for mulching the soil affected by extreme pedological drought, starting from the specific requirements imposed to the functional system by the real conditions of usage. The phases of iterative development were completed, starting from the digital and experimental design, the realization and testing of the system. Thus, the initialization phase included the digitization sequences corresponding to the digital design of the system and performance evaluation through testing (sketcher, part design, assembly design and generative structural analysis) for 3 distinct requirements: i) the module has a load with a mass of 5000 kg, t0=0 s; ii) part of the load is placed and there is a remaining part of 2000 kg, t1=t0+ɛ s, and iii) the module is empty, t2= t0+ɛ+ɤ s. The testing was carried out for all the 3 different situations as a function of time and the deformation under the effect of dynamic pressure, Von Mises stress fields and distribution of displacement vectors and errors were visualised.The possible cracks of the system were predicted using the Von Mises criterion, according to which the limit state of the solid body appears when the specific potential energy that modify the shape reaches the characteristic limit value of the material (allowable resistance of min +010N_m2). The second phase of the incremental development consists in the experimental design with the help of the Optitex Pattern Making PDS (EFI Optitex) software, obtaining the type-dimensions of the system and the multiplication (2D pattern construction, 3D simulation and visualization).The incremental development approach leads to a rapid development and realization of the functional model used in the case of pedological drought, and its systematic testing in real conditions of usage will determine both the improvement of the type-dimensional parameters, and the definition of the technological process.
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9

Kedrin, V. S., I. M. Dobrinets e M. S. Kedrina. "Design aspects of hierarchical variable-intersecting database for storing bioecological parameters for solving problems of mathematical modeling of the population dynamics of Baikal organisms". In VIII Information school of a young scientist. Central Scientific Library of the Urals Branch of the Russian Academy of Sciences, 2020. http://dx.doi.org/10.32460/ishmu-2020-8-0018.

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The project model of the BaikalIntelli research platform is considered for universal storage, input and processing arbitrary spatio-temporal databases of bioecological parameters. Information technologies that allow implementing the basic functionality of the universal meta-mechanism (means) of data systematization are considered. The monitoring mechanism was tested by entering the spatiotemporal database «Spatio-temporal variability of oligochaete populations in the area of industrial wastewater discharge from the Baikal pulp and paper mill».
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10

"Development of Environmental Monitoring System Using Oligochaetes in Aquatic Ecosystems". In International Conference on Biological, Environment and Food Engineering. International Institute of Chemical, Biological & Environmental Engineering, 2015. http://dx.doi.org/10.15242/iicbe.c0515031.

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Rapporti di organizzazioni sul tema "Oligochaeta"

1

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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2

Dodd, Hope, J. Cribbs, David Bowles, Cameron Cheri e Jeffrey Williams. Aquatic community monitoring at Effigy Mounds National Monument, 2008?2017. National Park Service, 2023. http://dx.doi.org/10.36967/2300634.

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Dousman Creek, located in northeastern Iowa, is a Class ?B? coldwater stream that supports a trout population and is listed among the Outstanding Iowa Waters (Iowa Department of Natural Resources 2010, 2016). The Heartland Inventory and Monitoring Network (Heartland Network) of the National Park Service (NPS) has been monitoring aquatic communities (fish and invertebrates) in Dousman Creek within Effigy Mounds National Monument (NM) since 2008. Corresponding physical habitat and water quality were also collected during biotic sampling. The objectives of this long-term monitoring program are to assess the status and trends in the biotic stream community and relate these trends to environmental variables. The purpose of this report is to summarize the baseline aquatic community data collected during three sampling events conducted from 2008 to 2017. The fish community was dominated by the intolerant cool/cold-water species Brown trout (Salmo trutta) and Mottled sculpin (Cottus bairdii) in 2008, while more tolerant white sucker (Catostomus comersonii) and Johnny darter (Etheostoma nigrum) were most abundant in 2014. During 2017, fish community composition was more evenly distributed among species present. Benthic invertebrate samples were dominated by the moderately intolerant mayfly genus Pseudocloeon and blackfly genus Simulium in 2008 and 2014, while the invertebrate samples in 2017 were dominated primarily by a tolerant, mayfly taxa (Baetis) and Oligochaetes. The abundance of aquatic invertebrates in 2017 was more than ten times lower than invertebrate abundance in 2008 and 2014. Water quality data collected by the Heartland Network did not indicate any of the five parameters (temperature, dissolved oxygen, pH, specific conductance, or turbidity) exceeded the Iowa Department of Natural Resources water quality standards, however the number of hourly measurements were low (4?20 measurements) depending on year sampled. Three years of data are currently insufficient to fully characterize the stream integrity of Dousman Creek based on fish and invertebrate communities. Continued long-term monitoring of Dousman Creek will allow for better assessment of the biotic integrity and overall quality of the stream.
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3

Dodd, Hope, David Bowles, John Cribbs, Jeffrey Williams, Cameron Cheri e Tani Hubbard. Aquatic community monitoring at Herbert Hoover National Historic Site, 2008?2017. National Park Service, 2024. http://dx.doi.org/10.36967/2303263.

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Land use changes that degrade water quality and stream habitat can negatively impact aquatic communities. Monitoring trends in aquatic community composition and habitat conditions is a robust way to assess stream integrity and health. Herbert Hoover National Historic Site (NHS) is in eastern Iowa where dominant land use consists of row-crop and grassland agriculture. A portion of an unnamed tributary of the West Branch of Wapsinonoc Creek, known as Hoover Creek, flows through the park. In 2008, the Heartland Inventory and Monitoring Network (Heartland Network) of the National Park Service (NPS) began monitoring aquatic communities (fish and invertebrates), physical habitat, and water quality at Hoover Creek within the park. This report summarizes four years of data to assess the baseline conditions of Hoover Creek within Herbert Hoover NHS. Aquatic invertebrate taxa richness ranged from 21 to 32 among all years monitored. Three of these taxa are sensitive to poor water quality and habitat conditions. The invertebrate community was dominated by true flies in the Chironomidae family, Oligochaete worms, and mayflies in the Baetidae family. These taxa are all tolerant of poor water quality and habitat conditions. However, in 2011, the sensitive caddisfly Ceratopsyche was also abundant. Mean Hilsenhoff Biotic Index values indicated the invertebrate community fluctuated over time, ranging from fairly poor in 2017 to good condition in 2011. Ten fish species were collected at Hoover Creek across the four years sampled with seven of those species found in all years. All fish species collected were either moderately tolerant or tolerant to poor habitat and water quality conditions; the community was dominated by johnny darter (Etheostoma nigrum), creek chub (Semotilus atromaculatus), and blacknose dace (Rhinichthys atratulus). Based on the Index of Biotic Integrity developed for Iowa streams, the fish community ranged from fair condition in 2008, 2014, and 2017 to good condition in 2011. Hoover Creek was found to have predominately fine to medium gravel substrate with high embeddedness, and banks were steep and tall and consisted of fine silt substrate. With the exception of turbidity after a rain event in 2008, water quality parameters were within state standards. The four years of stream biota data coupled with habitat data should form a good baseline for assessing changes or trends in the aquatic community and overall stream health of Hoover Creek.
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4

Trofische Relaties tussen oligochaeten en epibenthische predatoren op slikken in de zeeschelde. Instituut voor Natuur- en Bosonderzoek, 2021. http://dx.doi.org/10.21436/inbor.35111052.

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