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Journal articles on the topic 'Lentic environment'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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1

Gonçalves, Inês Corrêa, Bruno Cid, Amanda Frederico Mortati, Letícia Barbosa Quesado, and Jorge Luiz Nessimian. "Relative size of gills of Cloeodes jaragua Salles & Lugo-Ortiz, 2003 (Ephemeroptera, Baetidae) on pool and riffle areas of streams at the Atlantic Rainforest." Biota Neotropica 11, no. 2 (2011): 217–20. http://dx.doi.org/10.1590/s1676-06032011000200022.

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Physical environment of streams present many challenging factors to the organisms living under its influence. Water speed, one of the most important factors affecting such environments, has local influence on substrata, temperature, and oxygen levels. It acts determining species distributions and morphological and behavioral adaptations of organisms. The aim of this study was to assess the relative size of gills of Cloeodes jaragua on two mesohabitats: lentic environment (river dam) and lotic environment (fast flowing area of a stream) in Parque Nacional da Serra dos Órgãos (RJ, Brazil). Twent

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Ferreira Portela, Joelma, João Pedro Rudrigues de Souza, Myller de Sousa Tonhá, José Vicente Elias Bernardi, Jérémie Garnier, and Jurandir Rodrigues SouzaDe. "Evaluation of Total Mercury in Sediments of the Descoberto River Environmental Protection Area—Brazil." International Journal of Environmental Research and Public Health 17, no. 1 (2019): 154. http://dx.doi.org/10.3390/ijerph17010154.

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To evaluate the total mercury accumulation (THg) in the Descoberto river basin environmental protection area (DREPA), nine sediment and water samples were collected from the Descoberto reservoir (lentic environment), and 23 in its tributaries (lotic environment), which are located in a densely urbanized area within the Descoberto river watershed, Brazil. The following physicochemical parameters of water were determined: dissolved oxygen (DO); hydrogen potential (pH); total dissolved solids (TDS); nitrate (NO3−); chloride (Cl−); temperature (T); sulfate (SO42−), and in sediment, the concentrati

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Sekar, R., V. P. Venugopalan, K. Nandakumar, K. V. K. Nair, and V. N. R. Rao. "Early stages of biofilm succession in a lentic freshwater environment." Hydrobiologia 512, no. 1-3 (2004): 97–108. http://dx.doi.org/10.1023/b:hydr.0000020314.69538.2c.

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Dunn, Nicholas R., Leanne K. O’Brien, Christopher P. Burridge, and Gerard P. Closs. "Morphological Convergence and Divergence in Galaxias Fishes in Lentic and Lotic Habitats." Diversity 12, no. 5 (2020): 183. http://dx.doi.org/10.3390/d12050183.

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The influence of contrasting lentic and lotic hydrological environments on the morphology of members of the Galaxias vulgaris species complex was examined. Morphological variation between habitat types was investigated by comparison of populations of Galaxias brevipinnis (inferred ancestor), Galaxias gollumoides (roundhead morphotype) and Galaxias vulgaris (flathead morphotype). Interspecific convergence and intraspecific divergence of morphological characters were demonstrated, representing general shifts in morphology towards a common functional form in particular hydrological environments.

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Ion, Mihaela C., Adela E. Puha, Tudor Suciu, and Lucian Pârvulescu. "Get a grip: unusual disturbances drive crayfish to improvise." Behaviour 157, no. 2 (2020): 101–20. http://dx.doi.org/10.1163/1568539x-00003583.

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Abstract Animals that face unusual situations react instinctively in order to efficiently adapt to changes in the environment. Persistence leads training and learning the developed solution, which can then be applied to similar challenges in the future. We experimented on adult narrow-clawed crayfish extracted from both lentic and lotic habitats. We proved that the latter were more prone to grabbing objects during acute exposure to water currents. Chronic exposure of specimens from lentic habitat to water currents led to intense training in clumping activity, gripping quickly to adherent side

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Machado, Vanessa de Souza, Cecilia Volkmer-Ribeiro, and Roberto Iannuzzi. "Inventary of the Sponge Fauna of the cemitério Paleolake, Catalão, Goiás, Brazil." Anais da Academia Brasileira de Ciências 84, no. 1 (2012): 17–34. http://dx.doi.org/10.1590/s0001-37652012000100004.

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The Cemitério Paleolake, Catalão, Goiás, is a lacustrine deposit that is rich in spicules of continental sponges. These spicules, which are present in three sections (1-3), were analyzed for the taxonomic identification of the species in order to reconstruct the late Quaternary palaeoenvironment. An indigenous assemblage of lentic sponges was found, consisting of Metania spinata (Carter 1881), Dosilia pydanieli Volkmer-Ribeiro (1992), Radiospongilla amazonensis Volkmer-Ribeiro and Maciel (1983), Trochospongilla variabilis Bonetto and Ezcurra de Drago (1973), Corvomeyenia thumi (Traxler 1895),

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Booth, AJ, WT Kadye, T. Vu, and M. Wright. "Rapid colonisation of artificial substrates by macroinvertebrates in a South African lentic environment." African Journal of Aquatic Science 38, no. 2 (2013): 175–83. http://dx.doi.org/10.2989/16085914.2012.744687.

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Sekar, R., K. Nandakumar, V. P. Venugopalan, K. V. K. Nair, and V. N. R. Rao. "Spatial variation in microalgal colonization on hard surfaces in a lentic freshwater environment." Biofouling 13, no. 3 (1998): 177–95. http://dx.doi.org/10.1080/08927019809378380.

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Silva, G. K. V. P. T., W. A. D. Mahaulpatha, and Anslem De Silva. "Amphibian abnormalities and threats in pristine ecosystems in Sri Lanka." Journal of Threatened Taxa 11, no. 15 (2019): 15004–14. http://dx.doi.org/10.11609/jott.5394.11.15.15004-15014.

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Amphibian abnormalities are caused by numerous etiologies prevailing in the environment. Since amphibians are good bio indicators of the environment, amphibian abnormalities are popularly known as a veritable ecological screening tool to assess ecosystem health. The present study was carried out encompassing within and outside the Horton Plains National Park areas, from January to November 2017. Distribution of amphibian morphological abnormalities were assessed in and around the five lentic water bodies through gross visual encounter. Six quadrates of 1m×2m were randomly placed in each sampli

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Ferreira, Marco, João Gago, and Filipe Ribeiro. "Diet of European Catfish in a Newly Invaded Region." Fishes 4, no. 4 (2019): 58. http://dx.doi.org/10.3390/fishes4040058.

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Biological invasions are considered to be one of the leading causes of biodiversity loss worldwide. Freshwater ecosystems are amongst the most biodiverse, containing about 50% of the world’s known fish species but, ironically, are the most invaded ecosystems. In Portuguese freshwaters, there are currently 20 identified non-native fishes, arriving at an unprecedented rate of a new species every two years. A recent non-native is the European catfish Silurus glanis, a top predator native to Central and Eastern Europe, that arrived at the Lower Tagus (Portugal) circa 2006. This study compares the

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Albrecht, Miriam P., Vanessa C. S. Reis, and Érica P. Caramaschi. "Resource use by the facultative lepidophage Roeboides affinis (Günther, 1868): a comparison of size classes, seasons and environment types related to impoundment." Neotropical Ichthyology 11, no. 2 (2013): 387–94. http://dx.doi.org/10.1590/s1679-62252013005000007.

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We report the consumption of scales and other food resources by the facultative lepidophage Roeboides affinis in the upper Tocantins River where it was impounded by the Serra da Mesa Hydroelectric Dam. We compared the diet among size classes, between dry and wet seasons, and between sites with distinct water flow characteristics (lotic vs. lentic) related to the distance from the dam and phase of reservoir development. As transparency and fish abundance increased after impoundment, we expected a higher consumption of scales in lentic sites. Likewise, habitat contraction, higher transparency an

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Drotz, Marcus K., Eino Savolainen, Anssi Saura, and Gunilla Ståhls. "The genetic population structure of lotic and lentic mayflies of theBaetis vernusgroup (Ephemeroptera: Baetidae)." Canadian Entomologist 144, no. 5 (2012): 679–90. http://dx.doi.org/10.4039/tce.2012.69.

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AbstractNymphs of lotic mayflies live in environments that are expected to give rise to different degrees of population structuring. Here we investigate two taxa adapted to different lifestyles.Baetis macaniKimmins (Ephemeroptera: Baetidae) lives in flowing water; brooks that may periodically dry out in the summer or freeze to the bottom in winter.Baetis jaerviiSavolainen is mostly found in sedge belts along the shores of lakes. Most insects living in flowing water show low levels of among-population genetic differentiation within and among catchments. Levels of differentiation in the lotic sp

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Martello, Alcemar R., Carla B. Kotzian, and Marcello G. Simões. "Quantitative fidelity of recent freshwater mollusk assemblages from the Touro Passo River, Rio Grande do Sul, Brazil." Iheringia. Série Zoologia 96, no. 4 (2006): 453–65. http://dx.doi.org/10.1590/s0073-47212006000400010.

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This study represents one of the first contributions to the knowledge on the quantitative fidelity of the recent freshwater molluscan assemblages in subtropical rivers. Thanatocoenoses and biocoenoses were studied in straight and meandering to braided sectors, in the middle course of the Touro Passo River, a fourth-order tributary of the Uruguay River, located in the westernmost part of the State of Rio Grande do Sul. Samplings were carried out through quadrats of 5 m², five in each sector. A total area of 50 m² was sampled. Samplings were also made in a lentic environment (abandoned meander),

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Rai, S. K., and P. K. Misra. "Taxonomy and Diversity of Genus Pediastrum Meyen (Chlorophyceae, Algae) in East Nepal." Our Nature 10, no. 1 (2013): 167–75. http://dx.doi.org/10.3126/on.v10i1.7779.

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Pediastrum Meyen is a green algae occurs frequently in lentic environment like pond, puddles, lakes etc. mostly in warm and humid terai region. Twenty taxa of Pediasturm have been reported from Nepal, mostly from central and western part of the country, hitherto. Among them, in the present study, ten taxa of Pediastrum are enumerated also from east Nepal. Taxonomy and diversity of each taxa have been described with photomicrography.DOI: http://dx.doi.org/10.3126/on.v10i1.7779

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Fagundes, Camila K., Everton R. Behr, and Carla B. Kotzian. "Diet of Iheringichthys labrosus (Siluriformes, Pimelodidae) in the Ibicuí River, Southern Brazil." Iheringia. Série Zoologia 98, no. 1 (2008): 60–65. http://dx.doi.org/10.1590/s0073-47212008000100008.

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The diet of the benthic-feeding fish Iheringichthys labrosus (Lütken, 1874) was analyzed. Samples were taken bimonthly from December 1999 to January 2002, in three sites of the Ibicuí River, a tributary of Uruguay River basin (Rio Grande do Sul, Brazil). In each sampling point the specimens were collected in lentic and lotic environments. Gillnets and trammel nets were examined every 6 hours (6h, 12h, 18h and 24h). Diet description was based on the frequency of occurrence and the volume of each food item to obtain the Alimentary Index (IAi). The average stomach fullness was adopted to detect v

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Johnston, John E., and Art Borkent. "Chaoborus Lichtenstein (Diptera: Chaoboridae) pupae from the middle Eocene of Mississippi." Journal of Paleontology 72, no. 3 (1998): 491–93. http://dx.doi.org/10.1017/s0022336000024252.

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Pupae of the nonbiting midge Chaoborus are reported from the middle Eocene (Claibornian) Tallahatta Formation in Benton County, Mississippi. These pupae are placed within the genus Chaoborus because the shape of the respiratory organs, length of the abdomen, and shape of the anal paddles closely resemble other species of this extant genus. This occurrence represents the oldest record of Chaoborus pupae and the first record of fossil Chaoborus from North America. The flora and fauna found associated with the fossil pupae along with the known habitats of extant Chaoborus pupae indicate a lentic

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Chicaiza Veloz, David, and Héctor Flores. "Biological parameters of Pseudocurimata boulengeri (Characiformes: Curimatidae) inhabiting the Chongón dam, Ecuador." Revista de Biología Tropical 64, no. 1 (2016): 131. http://dx.doi.org/10.15517/rbt.v64i1.17853.

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Pseudocurimata boulengeri is an endemic species of Ecuador, which sustains a large group of fisher families. The biological data of this species correspond to reports from lotic systems of Los Ríos province; nevertheless, their trend in a lentic system is not yet known. This paper describes the sex ratio, length-weight relationship, gonad development, spawning season and size at reproductive maturity of P. boulengeri, inhabiting the lentic system of Chongón dam, Ecuador. Fish were caught between 2003 and 2009 using gill nets (2.5"). The total length (Lt) of caught specimens ranged from 10.5 to

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Silva, M. M., Daniel Vidal Pérez, Julio César Wasserman, Ralph Santos-Oliveira, and M. A. V. Wasserman. "The effect of nanohydroxyapatite on the behavior of metals in a microcosm simulating a lentic environment." Environmental Nanotechnology, Monitoring & Management 8 (December 2017): 219–27. http://dx.doi.org/10.1016/j.enmm.2017.08.002.

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Terra, Bianca de Freitas, Alex Braz Iacone dos Santos, and Francisco Gerson Araújo. "Fish assemblage in a dammed tropical river: an analysis along the longitudinal and temporal gradients from river to reservoir." Neotropical Ichthyology 8, no. 3 (2010): 599–606. http://dx.doi.org/10.1590/s1679-62252010000300004.

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We analysed changes in the fish assemblage structure along a longitudinal gradient of the Paraíba do Sul River and Funil Reservoir. We tested the hypothesis that shifts from lotic to lentic environment affect the richness and structure of the assemblage which are modulated by seasonal rainfall changes. Standardised monthly samplings were carried out from October 2006 to September 2007 in four zones: 1) river upstream from the reservoir; 2) upper part of the reservoir; 3) lower part of the reservoir, and 4) river downstream from the reservoir. Fishes were caught using gillnets deployed for 15 h

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20

Morant, Daniel, Christian Perennou, and Antonio Camacho. "Assessment of the Pressure Level over Lentic Waterbodies through the Estimation of Land Uses in the Catchment and Hydro-Morphological Alterations: The LUPLES Method." Applied Sciences 11, no. 4 (2021): 1633. http://dx.doi.org/10.3390/app11041633.

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The features of lentic waterbodies largely depend on the surrounding environment. Mediterranean coastal lagoons have been historically altered, with their catchment being highly modified for agricultural, livestock, or urban uses. Changes in land uses induce pressures that impact the waterbodies and alter their ecological status. The objectives of this paper were: to develop a methodological approach (LUPLES: Land Uses for estimating Pressure Levels to approach the Ecological Status), to quantify the main pressures on the waterbodies and to forecast the possible impacts of these pressures on t

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Parihar, A. K., Ashwani K. Basandrai, D. R. Saxena, et al. "Biplot evaluation of test environments and identification of lentil genotypes with durable resistance to fusarium wilt in India." Crop and Pasture Science 68, no. 11 (2017): 1024. http://dx.doi.org/10.1071/cp17258.

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Fusarium wilt (caused by Fusarium oxysporum f. sp. lentis) is the most crucial limiting variable for decreasing yield levels of lentils (Lens culinaris Medik.) around the world. A set of 20 diverse lentil genotypes comprising breeding lines and released varieties was evaluated, along with susceptible controls, for resistance to fusarium wilt through natural incidence for two continuous years (2010–11 and 2011–12) in six diverse lentil-growing environments in India. Analysis of variance showed that the effect of genotype (G) and environment (E) for disease incidence was highly significant. Amon

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Soni, Hiren B., and Sheju Thomas. "Assessment of surface water quality in relation to water quality index of tropical lentic environment, Central Gujarat, India." International Journal of Environment 3, no. 1 (2014): 168–76. http://dx.doi.org/10.3126/ije.v3i1.9952.

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The present study involved the determination of surface water quality index of tropical sacred wetland viz. Dakor Pilgrimage Wetland (DPW), Central Gujarat, India. The main aim of the study was to evaluate various water quality parameters to draw-out the water quality index for an assessment of a tropical aquatic body. The monthly values of pH, Dissolved Oxygen (DO), Total Suspended Solids (TSS), Total Dissolved Solids (TDS), Total alkalinity (TA), Total Hardness (TH), Calcium Hardness (Ca), Magnesium Hardness (Mg), Chloride, Sulphate, Phosphate, Sodium, and Potassium, were analyzed to compute

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Abd Hamid, Muzzalifah, Siti Norasikin Ismail, and Mashhor Mansor. "Overview of Macrophytes in The Tropical Wetland Ecosystem." Indonesian Journal of Limnology 2, no. 1 (2021): 25–34. http://dx.doi.org/10.51264/inajl.v2i1.12.

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Macrophytes are plants that adapted to wet environment and easily be found all over the world. Macrophytes have structures that are more complex, interdependent and physically substantial; make them one of the important components of rivers, lakes and any other wetland ecosystems. Macrophytes can be categorized into four different types; emergent, floating-leaved, submerged and free-floating plants based on their structure and life form. Light, water current and wind flow are among the most important limiting factors of macrophytes occurrence in the water system. Environmental conditions such

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MUNIZ, FELLIPE P., MARCOS CÉSAR BISSARO-JÚNIOR, EDSON GUILHERME, JONAS PEREIRA DE SOUZA FILHO, FRANCISCO RICARDO NEGRI, and ANNIE S. HSIOU. "VERTEBRATE TAPHONOMY OF TWO UPPER MIOCENE BONEBEDS IN WESTERN PROTO-AMAZONIA (SOLIMÕES FORMATION, BRAZIL): INSIGHTS FROM MACROVERTEBRATE AND MICROVERTEBRATE FOSSILS." PALAIOS 36, no. 8 (2021): 269–82. http://dx.doi.org/10.2110/palo.2021.020.

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ABSTRACT The Niterói and Talismã sites comprise two of the most important fossiliferous deposits of the Neogene in Brazil. After 30 years of research, these sites have revealed rich assemblages of vertebrates and provided a glimpse of the Amazonian fauna and environment during the Miocene. Despite this, detailed studies that attempt to explain the genesis of these bonebeds are still scarce and hamper more robust paleoenvironmental and paleoecological reconstructions. Here we provide the first in-depth taphonomic analysis for both locations. Sedimentological and taphonomic evidence suggest that

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Rai, Kalu Ram Khambu. "Comparative studies on lentic environment of Mai Pokhari, Ilam and Kechana jheel wetland ecosystems, Jhapa, Nepal (With reference to bottom dwelling fauna)." Nepalese Journal of Biosciences 1 (January 23, 2013): 32–36. http://dx.doi.org/10.3126/njbs.v1i0.7467.

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Mai Pokahri is a mountain lake situated in midland at an altitude of 2150 m from sea level whereas Kechana jheel is situated in lowland (Tarai) at an altitude of 63 m from the sea level respectively. The lentic environments of the both lakes vary in the composition of bottomdwelling fauna and limnetic fauna respectively. The comparative studies were carried out in two different years by sampling the macroinvertebrates periodically. The bottom-fauna at Mai pokhari was found higher than Kechana jheel. Mai pokhari is still in natural condition but Kechana jheel is losing its native entity because

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Gonçalves, Cristina da Silva, Ursulla Pereira Souza, Fabio Cop Ferreira, Alexandre Peressin, and Francisco Manoel de Souza Braga. "Life-history strategies associated to reproduction of three Hyphessobrycon species (Characidae) in lentic environments of upper Paraná River basin." Acta Limnologica Brasiliensia 25, no. 4 (2013): 398–405. http://dx.doi.org/10.1590/s2179-975x2013000400005.

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AIM: Life-history strategies in fish include essential parameters related to offspring survivorship, fecundity and time of reproduction, which represent adaptive traits that enable a species to deal with spatial and temporal variability of abiotic conditions. This study aimed to compare reproductive traits associated to life-history theory for three Hyphessobrycon species from two lentic environments (four natural oxbow lakes and a man-made reservoir) of Mogi Guaçu River, upper Paraná River basin. METHODS: Specimens were collected with four minnow traps between August 2005 and July 2006 to cov

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Mise, Fábio T., Fagner de Souza, João P. A. Pagotto, and Erivelto Goulart. "Intraspecific ecomorphological variations in Poecilia reticulata (Actinopterygii, Cyprinodontiformes): comparing populations of distinct environments." Iheringia. Série Zoologia 105, no. 2 (2015): 217–22. http://dx.doi.org/10.1590/1678-476620151052217222.

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ABSTRACT Morphological variations, according to the principles of ecomorphology, can be related to different aspects of the organism way of life, such as occupation of habitats and feeding behavior. The present study sought to examine the intraspecific variation in two populations of Poecilia reticulata Peters, 1859, that occur in two types of environments, a lotic (Maringá Stream) and a lentic (Jaboti Lake). Due to a marked sexual dimorphism, males and females were analyzed separately. Thus, the proposed hypotheses were that the populations that occur in distinct environments present morpholo

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Santos, Lívia B., Nelio R. dos Reis, and Mário L. Orsi. "Trophic ecology of Lontra longicaudis (Carnivora, Mustelidae) in lotic and semilotic environments in southeastern Brazil." Iheringia. Série Zoologia 102, no. 3 (2012): 261–68. http://dx.doi.org/10.1590/s0073-47212012005000004.

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Lontra longicaudis (Olfers, 1818) (Carnivora, Mustelidae) is a semi-aquatic animal spread through the Central and South America, except in Chile. The implantation of a hydroelectric power plant along a river alters the dynamics of the watercourse, transforming a lotic environment into a lentic or semilotic one, what can damage the otter's feeding. From April 2008 to March 2009 we analysed the otter's food habits in lotic (streamlet) and semilotic (hydroelectric reservoir) environments of Paranapanema Valley, in southeastern Brazil. Aiming to compare the otter's diet of these two environments,

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Czeglédi, István, Péter Sály, András Specziár, et al. "Congruency between two traditional and eDNA-based sampling methods in characterising taxonomic and trait-based structure of fish communities and community-environment relationships in lentic environment." Ecological Indicators 129 (October 2021): 107952. http://dx.doi.org/10.1016/j.ecolind.2021.107952.

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Borges, Vitor Nelson, Monique Van Sluys, Miguel Rico, and Carlos Rocha. "Breeding ecology of Scinax trapicheiroi (Anura, Hylidae) at a creek in the Atlantic Rainforest of Ilha Grande, southeastern Brazil." Amphibia-Reptilia 25, no. 3 (2004): 277–86. http://dx.doi.org/10.1163/1568538041975143.

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AbstractWe analyzed the breeding biology in a population of the hylid Scinax trapicheiroi and evaluated how some environmental and structural factors affect the temporal and spatial distribution of the clutches. Fieldwork was carried out at a small stream running inside the Atlantic Rainforest at Ilha Grande, an island in Rio de Janeiro State, southeastern Brazil, from October 2000 to September 2001. Breeding occurred all year round, but the presence of females and clutches was affected by rain from the previous days. Clutches had an aggregate distribution, because they were mainly laid on len

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Randall, Sala, Claire Cartozzo, Tal Simmons, Jenise L. Swall, and Baneshwar Singh. "Prediction of minimum postmortem submersion interval (PMSImin) based on eukaryotic community succession on skeletal remains recovered from a lentic environment." Forensic Science International 323 (June 2021): 110784. http://dx.doi.org/10.1016/j.forsciint.2021.110784.

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Soni, Hiren B., and Sheju Thomas. "Associative dependence among plankton and macrophytes as pollution markers at tropical lentic environ, Gujarat, India." International Journal of Environment 3, no. 2 (2014): 175–91. http://dx.doi.org/10.3126/ije.v3i2.10528.

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The present research was undertaken at three sampling stations of Gomti catchment, Central Gujarat, India, to study dominance, interaction, and interdependence among biotic components (phytoplankton, zooplankton and aquatic macrophytes). The phytoplankton population was represented by 39 genera and 48 species belongs to family Bacillariophyceae (21 species), followed by Cyanophyceae (7), Cholorophyceae (18), and Euglenophyceae (2). In total, seven classes of zooplankton were represented by 36 genera and 39 species. Zooplankton dominance was reflected by class Ciliophora (16 species), followed

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Avigliano, E., and A. V. Volpedo. "Use of otolith strontium : calcium ratio as an indicator of seasonal displacements of the silverside (Odontesthes bonariensis) in a freshwater–marine environment." Marine and Freshwater Research 64, no. 8 (2013): 746. http://dx.doi.org/10.1071/mf12165.

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Strontium : calcium (Sr : Ca) ratios were measured in sagittal otoliths of silverside (Odontesthes bonariensis) from a freshwater–marine environment (Paraná River Delta and Río de la Plata River, South America) in order to understand its seasonal movements. Conductivity was recorded and the water Sr : Ca ratio was determined by inductively coupled plasma–atomic emission spectrometry (ICP-OES). A calibration curve of water Sr : Ca ratio versus otolith Sr : Ca ratio from four isolated lentic water bodies was made to predict silverside displacements in the lower section of the Plata Basin during

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Dudgeon, David, and Christina Y. M. Wat. "Life cycle and diet of Zygonyx iris insignis (Insecta: Odonata: Anisoptera) in Hong Kong running waters." Journal of Tropical Ecology 2, no. 1 (1986): 73–85. http://dx.doi.org/10.1017/s0266467400000614.

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ABSTRACTZygonix iris is widespread in tropical Asia, and larvae are sprawlers/clingers on rock surfaces in fast-flowing streams and rivers. In the Lam Tsuen River, Hong Kong, this species is univoltine; emergence occurs prior to the summer monsoon and larval recruitment during the wet season. Studies on larval dietary composition in four habitats indicated that Z. iris is a generalist predator, consuming epibenthic prey taxa in proportion to their abundance in the environment. Larval Chironomidae (Diptera) and Baetis (Ephemeroptera) were the commonest food items at all sites and there was litt

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William, R. T., and D. B. Strongman. "Two new genera of fungal trichomycetes, Bactromyces and Laculus (Harpellales), from Nova Scotia, Canada." Botany 90, no. 2 (2012): 101–11. http://dx.doi.org/10.1139/b11-086.

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The gut lumen of immature aquatic insects is colonized by a unique community of protistan and fungal organisms, collectively called trichomycetes. The species diversity of fungal trichomycetes appears to be high, with new taxa published regularly. Bactromyces fluminalis and Laculus insecticola , species belonging to two new genera of fungal trichomycetes, are described from stonefly and mayfly nymphs, respectively. Bactromyces fluminalis was collected from a stream habitat in Long Lake Provincial Park, Halifax, Nova Scotia, Canada, while Laculus insecticola was found in a lentic environment (G

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Abrahams, Mark V., Marc Mangel, and Kevin Hedges. "Predator–prey interactions and changing environments: who benefits?" Philosophical Transactions of the Royal Society B: Biological Sciences 362, no. 1487 (2007): 2095–104. http://dx.doi.org/10.1098/rstb.2007.2102.

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While aquatic environments have long been thought to be more moderate environments than their terrestrial cousins, environmental data demonstrate that for some systems this is not so. Numerous important environmental parameters can fluctuate dramatically, notably dissolved oxygen, turbidity and temperature. The roles of dissolved oxygen and turbidity on predator–prey interactions have been discussed in detail elsewhere within this issue and will be considered only briefly here. Here, we will focus primarily on the role of temperature and its potential impact upon predator–prey interactions. Tw

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Meira, Bianca Ramos, Melissa Progênio, Edilaine Corrêa Leite, et al. "Functional feeding groups of Protist Ciliates (Protist: Ciliophora) on a neotropical flood plain." Annales de Limnologie - International Journal of Limnology 57 (2021): 13. http://dx.doi.org/10.1051/limn/2021009.

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Functional diversity approaches have been an efficient tool in gaining a better understanding of how environmental conditions selected species in a given environment and how they share resources, linking ecological processes to biodiversity patterns. Although most of the protist ciliates are not highly specialized, functional feeding groups with species which ingest similar food can be identified. Thus, this study aimed to compare the abundance of different Functional Feeding Groups (FFG) of ciliates in environments with different hydrodynamic conditions (lotic and lentic) in different hydrolo

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Sanda, Radek, Miroslav Svátora, Jasna Vukic, Zuzana Hořická, Olga Sychrová, and Sasa Maric. "Evaluation of the temporal development of three introduced populations of brook trout, Salvelinus fontinalis, in Jizerské mountains, Czech Republic." Archives of Biological Sciences 67, no. 3 (2015): 775–84. http://dx.doi.org/10.2298/abs140215036s.

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Three populations of brook trout, Salvelinus fontinalis, established in streams and reservoirs in the Jizersk? Mountains, Czech Republic, were studied between 1995 and 2006. The maximum age was usually 3+ to 4+, but the age 7+ was also recorded. The inflows of all reservoirs are populated mostly by 0+ to 2+ brook trout, while older specimens live in a lentic environment, migrating to lotic habitats only to spawn. The density of brook trout in streams ranged from 8 to 95 individuals per 100 m2 during spring and summer, while that for reservoirs ranged between 31 and 290 individuals per ha. A st

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Neves, Mayara Pereira, Rosilene Luciana Delariva, Ana Tereza Bittencourt Guimarães, and Paulo Vanderlei Sanches. "Carnivory during Ontogeny of the Plagioscion squamosissimus: A Successful Non-Native Fish in a Lentic Environment of the Upper Paraná River Basin." PLOS ONE 10, no. 11 (2015): e0141651. http://dx.doi.org/10.1371/journal.pone.0141651.

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Santana, HS, LCF Silva, CL Pereira, J. Simião-Ferreira, and R. Angelini. "The rainy season increases the abundance and richness of the aquatic insect community in a Neotropical reservoir." Brazilian Journal of Biology 75, no. 1 (2015): 144–51. http://dx.doi.org/10.1590/1519-6984.09213.

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Alterations in aquatic systems and changes in water levels, whether due to rains or dam-mediated control can cause changes in community structure, forcing the community to readjust to the new environment. This study tested the hypothesis that there is an increase in the richness and abundance of aquatic insects during the rainy season in the Serra da Mesa Reservoir, with the premise that increasing the reservoir level provides greater external material input and habitat diversity, and, therefore, conditions that promote colonization by more species. We used the paired t test to test the differ

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Goveia, D., A. Rebelo, A. P. Loro, et al. "USO DE ÍNDICES DE QUALIDADE PARA AVALIAÇÃO DA ÁGUA EM AMBIENTE LÊNTICO / USE OF QUALITY INDEX FOR EVALUATION OF WATER IN LENTIC ENVIRONMENT." Revista Brasileira de Engenharia de Biossistemas 8, no. 2 (2014): 104. http://dx.doi.org/10.18011/bioeng2014v8n2p104-111.

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Santos, R. N., C. C. Andrade, L. N. Santos, A. F. G. N. Santos, and F. G. Araújo. "Testicular maturation of Oligosarcus hepsetus (Cuvier) (Actinopterygii, Characidae) in a brazilian tropical reservoir." Brazilian Journal of Biology 66, no. 1a (2006): 143–50. http://dx.doi.org/10.1590/s1519-69842006000100018.

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Six reproductive classes of male Oligosarcus hepsetus (Cuvier, 1829), a medium-sized carnivorous Characiform species, are described based on macroscopic and histological techniques. A total of 175 individuals were caught monthly between April 2001 and June 2002 in the Lajes Reservoir, Brazil, one of the largest impoundment areas in the state of Rio de Janeiro. The reproductive classes were based upon changes in the testicular morphology and stages of germinative cells, i.e., resting, early maturing, late maturing, mature, partially spent and totally spent. Fish in the resting class showed test

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Igawa, Takeshi, Teruhiko Takahara, Quintin Lau, and Shohei Komaki. "An application of PCR-RFLP species identification assay for environmental DNA detection." PeerJ 7 (October 3, 2019): e7597. http://dx.doi.org/10.7717/peerj.7597.

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Recent advancement of environmental DNA (eDNA) methods for surveying species in aquatic ecosystems has been used for various organisms and contributed to monitoring and conservation of species and environments. Amphibians are one of the promising taxa which could be monitored efficiently by applying quantitative PCR (qPCR) or next generation sequencing to eDNA. However, the cost of eDNA detection using these approaches can be quite high and requires instruments that are not usually installed in ecology laboratories. For aiding researchers in starting eDNA studies of amphibians, especially thos

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CHATTERJEE, TAPAS, IGOR DOVGAL, VLADIMIR PEŠIĆ, and ANDRZEJ ZAWAL. "A checklist of epibiont suctorian and peritrich ciliates (Ciliophora) on halacarid and hydrachnid mites (Acari: Halacaridae & Hydrachnidia)." Zootaxa 4457, no. 3 (2018): 415. http://dx.doi.org/10.11646/zootaxa.4457.3.4.

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Based on published records and original data, a list of the epibiont suctorian and peritrich ciliates (Ciliophora) on halacarid and hydrachnid mites is presented. Altogether 13 suctorian and 10 peritrich species from hydrachnid and halacarid mites were listed. From this list, six suctorian and one peritrich species have been reported from halacarid mites, while four suctorian and four peritrich species were found on hydrachnid mites determined up to species level. The remaining specimens were determined upto the generic level. The halacarid and hydrachnid species do not share any suctorian and

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Solari, Lía, and María E. Mac Donagh. "Lotic and lentic environments of the Pampean Plain." Advances in Limnology 65 (July 7, 2014): 143–65. http://dx.doi.org/10.1127/1612-166x/2014/0065-0039.

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Soni, Hiren B., and Sheju Thomas. "Preliminary Data on Occurrence of Zooplanktons of Fresh Water Lentic Ecosystem - A Case Study of Dakor Sacred Wetland, Central Gujarat, India." International Journal of Environment 1, no. 1 (2013): 46–55. http://dx.doi.org/10.3126/ije.v1i1.8527.

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The aim of the present study was to depict the preliminary data on occurrence of zooplanktons of Dakor Sacred Wetland (DSW) Central Gujarat, India. The samples of zooplanktons were collected from three permanent sampling stations for one year (June 2012 to May 2013) at 15 days interval. The zooplankton population was represented by a total of 36 genera and 39 species dispersed amongst Ciliophora (16 species), followed by Zooflagellata, Rhizopoda and Rotifera (6 species), Cladocera (3 species) while Copepoda and Ostracoda (1 species). Species such as Thecamooeba verrucosa Ehrenberg, Placus luci

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Bailey, K. L., B. D. Gossen, D. A. Derksen, and P. R. Watson. "Impact of agronomic practices and environment on diseases of wheat and lentil in southeastern Saskatchewan." Canadian Journal of Plant Science 80, no. 4 (2000): 917–27. http://dx.doi.org/10.4141/p00-007.

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To determine the effect of tillage and rotation on plant diseases, their severity and prevalence were monitored on spring wheat, lentil, and field pea grown in rotation with zero and conventional tillage at Indian Head, SK, from 1992 to 1995. Root disease severity of wheat was less under zero tillage than conventional tillage, but leaf spot severity was unchanged. Incidence of the causal agents from roots was variable, such that Fusarium spp. were higher under zero tillage than conventional and Bipolaris sorokiniana was lower. Pyrenophora triticirepentis was the only foliar pathogen more preva

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Cunha, NL, AC Catella, and MA Kinas. "Growth parameters estimates for a small fish of the Pantanal, Brazil: Moenkhausia dichroura (Characiformes; Characidae)." Brazilian Journal of Biology 67, no. 2 (2007): 293–97. http://dx.doi.org/10.1590/s1519-69842007000200014.

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Growth parameters were estimated for Moenkhausia dichroura (Kner, 1858) (Characiformes, Characidae), a small-sized and very abundant fish of the Pantanal lentic habitats commonly known as "pequira ". A method based on the length frequencies distribution and the ELEFAN I routine from the FISAT program were used. The fish were collected in the Baia da Onça, an oxbowlake of the sub-region Pantanal of Aquidauana, Mato Grosso do Sul, Brazil, from June to December 1988. The standard length of the captured fishes ranged from 29 to 76 mm with an average of 53 mm. The estimated growth parameters were L

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Macêdo, Indira Maria Estolano, Fábio Henrique Portella Corrêa de Oliveira, Osman Oliveira de Lira, et al. "Relação Fitoplâncton - Zooplâncton em Ambiente Oligotrófico(Fitoplankton-Zooplankton Relationship in Oligotrophic Environment)." Revista Brasileira de Geografia Física 10, no. 5 (2017): 1368. http://dx.doi.org/10.26848/rbgf.v.10.5.p1368-1376.

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Ecossistemas lênticos de pequeno porte respondem rapidamente às condições ambientais, influenciando a comunidade planctônica devido às flutuações bióticas e abióticas do corpo d’água. Este estudo teve como objetivo analisar os parâmetros físico-químicos e a identificação da comunidade planctônica (fitoplâncton, zooplâncton e bacterioplâncton) presentes no reservatório, correlacionando esses organismos em um ambiente oligotrófico. As análises foram realizadas mensalmente no período de julho/2014 a junho/2016. A análise de todos os parâmetros físico-químicos e biológicos foi realizados de acordo

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Reyna, Paola B., Ariana G. Morán, and Marcos Tatián. "Taxonomy, distribution and population structure of invasive Corbiculidae (Mollusca, Bivalvia) in the Suquía River basin, Córdoba, Argentina." Iheringia. Série Zoologia 103, no. 2 (2013): 77–84. http://dx.doi.org/10.1590/s0073-47212013000200001.

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Invasive species are one of the most significant causes of biodiversity loss and changes in ecosystem services, which underlines the importance of their detection and their study. The Asian clams (Corbiculidae) are invasive organisms that accidentally entered the La Plata River, Argentina, presumably in the 1960s. The objectives of the present study were to identify the corbiculid species and to determine their distribution at several locations along the Suquía River basin, an extended area in central Argentina. In addition, population structure was evaluated monthly during one year, at a site

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