Academic literature on the topic 'Microcrustaceans. eng'

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Journal articles on the topic "Microcrustaceans. eng"

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Assalin, Marcia Regina, Vera Lucia Ferracini, Sonia Claudia Nascimento Queiroz, Cláudio Martin Jonsson, Zaira Clemente, and Simone Raquel Caldeira Moreira da Silva. "Photocatalytic degradation of an organophosphorus pesticide from agricultural waste by immobilized TiO2 under solar radiation." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 11, no. 4 (2016): 778. http://dx.doi.org/10.4136/ambi-agua.1824.

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This paper describes solar heterogeneous photocatalysis using immobilized TiO2 applied in the treatment of agricultural waste resulting from the application of commercial formulations of methyl parathion. The disappearance of the insecticide, as well as the formation of its metabolite, was monitored by high-performance liquid chromatography-tandem mass spectrometry (LC-MS/MS), while mineralization efficiency was monitored by measurements of total organic carbon (TOC). Toxicity studies were performed using the microcrustacean Artemia salina. The TOC removal efficiency by photocatalytic process
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Limburg, Petra A., and Lawrence J. Weider. "‘Ancient’ DNA in the resting egg bank of a microcrustacean can serve as a palaeolimnological database." Proceedings of the Royal Society of London. Series B: Biological Sciences 269, no. 1488 (2002): 281–87. http://dx.doi.org/10.1098/rspb.2001.1868.

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Nguyen, Van-Tai, Thi-Phuong-Dung Le, and Thanh-Son Dao. "Chronic effects of domestic and single used plastic leachates on the microcrustacea Daphnia magna." Science & Technology Development Journal - Science of The Earth & Environment 5, no. 2 (2021): first. http://dx.doi.org/10.32508/stdjsee.v5i2.557.

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Plastic pollution has become one of the most serious environmental issues worldwide. Plastics can contain high amount of additives (e.g., phthalate, bisphenol A, trace metals), and they could be leached out of plastics, enter the aquatic environment and cause toxic effects to aquatic organisms (including microcrustacean). In this study, we investigated chronic effects of plastic leachates from two popular plastic materials (garbage bag and disposable raincoat) on the survival, maturation and reproduction of the microcrustcean Daphnia magna. The results showed that, the plastic leachates from t
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Rosa, Jonathan, Ramiro de Campos, Koen Martens, and Janet Higuti. "Spatial variation of ostracod (Crustacea, Ostracoda) egg banks in temporary lakes of a tropical flood plain." Marine and Freshwater Research 72, no. 1 (2021): 26. http://dx.doi.org/10.1071/mf19081.

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Ostracods are microcrustaceans that produce resting eggs under adverse conditions. In this study we evaluated the spatial variation of ostracod resting eggs in different regions of temporary lakes in a Brazilian flood plain. Based on the homogenisation effect of flood pulses on aquatic communities in flood plains, we hypothesised that the composition and abundance of ostracod eggs in the centre of temporary lakes would be similar to those in edge regions. Samples were collected from the centre and edge regions of five temporary lakes. Sediment was oven dried, rehydrated and hatching was monito
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Chaki, Nipa, Michael Reid, and Daryl L. Nielsen. "The influence of flood frequency and duration on microcrustacean egg bank composition in dryland river floodplain sediments." Freshwater Biology 66, no. 7 (2021): 1382–94. http://dx.doi.org/10.1111/fwb.13724.

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Weider, Lawrence J., Winfried Lampert, Martin Wessels, John K. Colbourne, and Petra Limburg. "Long–term genetic shifts in a microcrustacean egg bank associated with anthropogenic changes in the Lake Constance ecosystem." Proceedings of the Royal Society of London. Series B: Biological Sciences 264, no. 1388 (1997): 1613–18. http://dx.doi.org/10.1098/rspb.1997.0225.

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Horstmann, Martin, Alexander T. Topham, Petra Stamm, et al. "Scan, extract, wrap, compute—a 3D method to analyse morphological shape differences." PeerJ 6 (June 8, 2018): e4861. http://dx.doi.org/10.7717/peerj.4861.

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Quantitative analysis of shape and form is critical in many biological disciplines, as context-dependent morphotypes reflect changes in gene expression and physiology, e.g., in comparisons of environment-dependent phenotypes, forward/reverse genetic assays or shape development during ontogenesis. 3D-shape rendering methods produce models with arbitrarily numbered, and therefore non-comparable, mesh points. However, this prevents direct comparisons. We introduce a workflow that allows the generation of comparable 3D models based on several specimens. Translocations between points of modelled mo
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Brattey, John, and Kirsten J. Clark. "Effect of temperature on egg hatching and survival of larvae of Anisakis simplex B (Nematoda: Ascaridoidea)." Canadian Journal of Zoology 70, no. 2 (1992): 274–79. http://dx.doi.org/10.1139/z92-041.

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Eggs of the parasitic nematode Anisakis simplex B, obtained from a white-beaked dolphin (Lagenorhynchus albirostris Gray), were incubated in seawater at constant temperatures from −0.7 to 24.3 °C and hatching times determined. Eggs hatched at all temperatures except −0.7 °C. The number of days until hatching ranged from 3 at 24.3 °C to 74–81 at 1.9 °C. There was a declining curvilinear relationship between temperature and both hatching time and duration of the hatching period. The hatching period increased and became more variable with decreasing temperature and ranged from 5 days at 24.3 °C t
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Dostine, P. L., C. L. Humphrey, R. M. Paltridge, and A. J. Boulton. "Macroinvertebrate recolonization after re-wetting of a tropical seasonally-flowing stream (Magela Creek, Northern Territory, Australia)." Marine and Freshwater Research 48, no. 7 (1997): 633. http://dx.doi.org/10.1071/mf97059.

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Magela Creek, a tropical stream in northern Australia, dries out for most of its length for approximately 6 months of the year. At the end of the dry season, the macroinvertebrate fauna of the perennial upper reaches and lowland billabongs were sampled, as well as resting stages of the fauna in the dry sandy streambed. With the resumption of wet-season flow, drift and benthos were sampled from three sites along the sand tract of the creek over the ensuing four weeks. Recolonization commenced rapidly after first flow. Most taxa were derived from the perennial upper reaches through drift, but co
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Powlik, James J. "Seasonal Abundance and Population Flux of Tigriopus Californicus (Copepoda: Harpacticoida) in Barkley Sound, British Columbia." Journal of the Marine Biological Association of the United Kingdom 78, no. 2 (1998): 467–81. http://dx.doi.org/10.1017/s0025315400041564.

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The study describes the seasonal density and age structure for splashpool metapopulations of Tigriopus californicus (Copepoda: Harpacticoida). Natural populations were highly variable, ranging from 217 ± 401·7 ind 1−1 in winter (mean ± SE) to 835 ± 1750·6 ind 1−1 in summer, with some populations approaching 20,000 ind 1−1 in all seasons except winter. Male-to-female ratio ranged from 1·36 in spring and summer to 1·84 in autumn, and reproduction was observed throughout the year. Nauplii abundance averaged 28 + 7·4 ind 11, a value much lower than expected for in situ copepod populations and poss
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Dissertations / Theses on the topic "Microcrustaceans. eng"

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Stephan, Ligia Roma. "Tamanho, produção de ovos e distribuição espacial de microcrustáceos litorâneos e limnéticos em pequenos reservatórios rasos /." São José do Rio Preto : [s.n.], 2012. http://hdl.handle.net/11449/87589.

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Orientador: Maria Stela Maioli Castilho Noll<br>Banca: Lilian Casatti<br>Banca: Marlene Sofia Arcifa Froehlich<br>Banca: Lúcia Helena Sipaúba Tavares<br>Resumo: O objetivo geral do presente trabalho é verificar a influência das macrófitas na distribuição e ocupação de microcrustáceos em viveiros artificiais, verificar se nestes locais há migração horizontal diária, e coletar dados em lagoas marginais e reservatórios sobre a variação de tamanho e produção de ovos entre as zonas litorâneas e limnéticas e entre as estações do ano. Este trabalho foi dividido em dois capítulos, no primeiro foi veri
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Câmara, Carolina Figueira. "Caracterização da comunidade de microcrustáceos e avaliação de potenciais predadores vertebrados e invertebrados em dois reservatórios na região noroeste do Estado de São Paulo /." São José do Rio Preto : [s.n.], 2011. http://hdl.handle.net/11449/87595.

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Orientador: Maria Stela M. Castilho Noll<br>Banca: Marlene Sofia Arcifa Froehlich<br>Banca: Cláudia Fileto<br>Resumo: Os microcrustáceos que ocorrem no zooplâncton são representados pelos cladóceros e copépodos e estão distribuídos nas zonas litorânea e pelágica dos ambientes aquáticos. O objetivo geral do presente trabalho foi caracterizar a comunidade de microcrustáceos das regiões litorânea e pelágica de dois reservatórios do noroeste do Estado de São Paulo, bem como relacionar os dados bióticos com os dados abióticos e avaliar os potenciais predadores invertebrados e vertebrados de Cladoce
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