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Journal articles on the topic 'Microcrustaceans. eng'

Author: Grafiati

Published: 4 June 2021

Last updated: 18 February 2022

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1

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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2

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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3

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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4

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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5

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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6

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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7

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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8

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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9

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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10

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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11

DENG, HONG-WEN, JIAN LI, MICHAEL E. PFRENDER, JIN-LONG LI, and HONGYI DENG. "Upper limit of the rate and per generation effects of deleterious genomic mutations." Genetical Research 88, no. 1 (2006): 57–65. http://dx.doi.org/10.1017/s0016672306008329.

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Unbiased or upper limit estimates of the rate (U) of genomic mutations to mildly deleterious alleles are crucial in genetic and conservation studies and in human health care. However, only a few estimates of the lower bounds of U are available. We present a fairly robust estimation that yields an upper limit of U and a nearly unbiased estimate of the per generation fitness decline due to new deleterious mutations. We applied the approach to three species of the freshwater microcrustacean Daphnia and revealed that the upper limit of U for egg survivorship is 0·73 (SD=0·30) in 14 D. pulicaria po

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12

Suhett, Albert Luiz, Jayme Magalhães Santangelo, Reinaldo Luiz Bozelli, Christian Eugen Wilhem Steinberg, and Vinicius Fortes Farjalla. "An overview of the contribution of studies with cladocerans to environmental stress research." Acta Limnologica Brasiliensia 27, no. 2 (2015): 145–59. http://dx.doi.org/10.1590/s2179-975x3414.

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Cladocerans are microcrustaceans component of the zooplankton in a wide array of aquatic ecosystems. These organisms, in particular the genus Daphnia, have been widely used model organisms in studies ranging from biomedical sciences to ecology. Here, we present an overview of the contribution of studies with cladocerans to understanding the consequences at different levels of biological organization of stress induced by environmental factors. We discuss how some characteristics of cladocerans (e.g., small body size, short life cycles, cyclic parthenogenesis) make them convenient models for suc

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13

Sharma, P., M. Elias Gutierrez, and T. Kobayashi. "Identification of common cladocerans and calanoids in two south Australian reservoirs using DNA barcoding and morphological analysis: an integrative approach." Crustaceana 87, no. 7 (2014): 834–55. http://dx.doi.org/10.1163/15685403-00003333.

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Valid identification of species of freshwater zooplankton is the first step to understand population structures, abundance, and diversity in the pelagic environment. While some Australian taxa can be easily identified morphologically, e.g.,Calamoecia ampulla(Searle, 1911), most other species of freshwater micrometazoans are difficult to identify without specialised training, resulting in limited and even incorrect identification of the various taxa. The use of DNA barcodes, for species identification and discrimination, has added a new dimension to the traditional phenotypic approach and allow

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14

Krajina, Ivanka Orkić, Irella Bogut, Dubravka Čerba, Željko Popović, and Ivančica Jurčević Agić. "Phytophilous Fauna of a Small and Artificial Urban Lake." Croatian Journal of Fisheries 75, no. 2 (2017): 51–57. http://dx.doi.org/10.1515/cjf-2017-0008.

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Abstract Phytophilous community on Myriophyllum spicatum was studied in a small artificial urban lake in the city of Osijek (eastern Croatia), during the spring and summer season in 2010. In the eutrophic conditions, macrophyte stands were well developed and in the formed periphyton representatives of the following invertebrate taxa were found: Hydrozoa, Nematoda, Gastropoda, Cladocera, Copepoda, Insecta larvae - including families Chironomidae and Coleoptera. They displayed differences in temporal abundance patterns. Two separate phases in macrophyte colonization with differences in invertebr

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15

Horstmann, Martin, Ralph Tollrian, and Linda C. Weiss. "Thwarting predators? A three-dimensional perspective of morphological alterations in the freshwater crustacean Daphnia." PLOS ONE 16, no. 7 (2021): e0254263. http://dx.doi.org/10.1371/journal.pone.0254263.

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Predation is a major selective agent, so that many taxa evolved phenotypically plastic defensive mechanisms. Among them are many species of the microcrustacean genus Daphnia, which respond to an increased predation risk by developing inducible morphological alterations. Some of these features are obvious and easily recognized, e.g., crests in D. longicephala, while others are rather hidden, such as the bulkier shape of D. magna induced by the presence of the tadpole shrimp Triops. In this study we investigated the extraordinary diversity of morphological adaptations in the presence of predator

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16

Arcifa, Marlene S., Tânia C. Dos Santos Ferreira, Claudia Fileto, Maria S. Maioli Castilho-Noll, Taís C. Bunioto, and Walter J. Minto. "A long-term study on crustacean plankton of a shallow tropical lake: the role of invertebrate predation." Journal of Limnology, June 23, 2015. http://dx.doi.org/10.4081/jlimnol.2015.1132.

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<p>The primary factor that governs the size and species composition of zooplankton is still a controversial issue and temperature is considered the main factor responsible for latitudinal differences. In waters with a narrow temperature range, such as in the tropics, predation may be a more important factor. Nearly three decades of intermittent studies of the crustacean plankton in a shallow tropical lake revealed that the main event that led to their restructuring was the appearance of a second predator, the water mite <em>Krendowskia </em>sp. The new predator and larvae of

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