Relevant bibliographies by topics / Indicators; Bioindicators

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Indicators; Bioindicators'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 February 2022

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Journal articles on the topic "Indicators; Bioindicators"

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Mauricio da Rocha, José Renato, Josimar Ribeiro De Almeida, Gustavo Aveiro Lins, and Alberto Durval. "INSECTS AS INDICATORS OF ENVIRONMENTAL CHANGING AND POLLUTION: A REVIEW OF APPROPRIATE SPECIES AND THEIR MONITORING." Holos Environment 10, no. 2 (July 8, 2010): 250. http://dx.doi.org/10.14295/holos.v10i2.2996.

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Responses of some species to disturbances can be used as a parameter of analysis about levels of change in the environmental services. These species can be used as environmental bioindicators. Class Insecta has many appropriate species. This paper aims an analysis of bioindicator species of the impact caused by intensive agriculture, deforestation, reforestation and pollution of aquatic and terrestrial environments.
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Purbonegoro, Triyoni. "POTENSI BIVALVIA SEBAGAI BIOINDIKATOR PENCEMARAN LOGAM DI WILAYAH PESISIR." OSEANA 43, no. 3 (October 30, 2018): 61–71. http://dx.doi.org/10.14203/oseana.2018.vol.43no.3.68.

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POTENTIAL OF BIVALVE AS BIOINDICATOR OF METAL POLLUTION IN THE COASTAL AREA. Bioaccumulation database using various species of marine bivalves is useful to determine which species are suitable as bioindicators in pollution monitoring. In general, metal bioaccumulation in bivalve varies in every location and influenced by the biokinetics of each species depending on the environmental condition. Increasing accumulation of one metal will enhance the accumulation of other metal in bivalve tissue. This needs to be taken into account in interpreting metal concentrations in bivalve. Oysters and mussels have the potential as bio-indicators of metals, especially Cu and Zn, while scallops are more potential as bioindicators of Cd and Zn. Meanwhile, clams has the potential as a bioindicators of Zn. Change in shape (malformation) of bivalve shells due to heavy metal accumulation also observed. The rough structure, attachment of minerals to the shell, and thickening of the shell layer are some forms of changes in bivalve shell morphology.
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New, T. R. "Are predatory arthropods useful indicators in Australian agroecosystems?" Australian Journal of Experimental Agriculture 47, no. 4 (2007): 450. http://dx.doi.org/10.1071/ea05269.

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Information on the diversity and roles of two groups of arthropod predators (Neuroptera and Araneae) in Australian cropping systems is reviewed, as a foundation for discussing the properties of such predators that may render them useful bioindicators, and for discussing their ecological roles in agroecosystems. Predators are a prime target for conservation and augmentation, reflecting their perceived or actual positive roles in pest management, but most appear to have little value as true bioindicators in agricultural environments. In Australia, Neuroptera are represented by very few species in most agroecosystems, and all of these species are polyphagous generalists. Biological knowledge of Araneae, and of the factors that influence their species richness, is too scanty to enable sound understanding of changes in assemblage composition that might otherwise be regarded as ‘indication’. The current value of these groups as bioindicators is minimal.
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Zulfia, Tukenova, Alimzhanova Mereke, Kazybaeyeva Saule, Ashimuly Kazhybek, and Zhylkybaev Oral. "Soil Invertebrate Animals as Indicators of Contamination of Light Chestnut Ground of Southeast of Kazakhstan." International Journal of Engineering & Technology 7, no. 3.32 (August 26, 2018): 80. http://dx.doi.org/10.14419/ijet.v7i3.32.18398.

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The use of living organisms as biological indicators for environmental change necessitates the development of a number of criteria on the basis of which it is possible to select indicator species. These include the biological activity of soils (mesofauna, enzymes). Bioindicators with a chronic anthropogenic load on the soil, in particular with prolonged application of fertilizers, can react to very weak effects due to dose accumulation, in addition, they make it unnecessary to use expensive and laborious physical and chemical methods for measuring biological parameters. The novelty of our research is based on the study of the influence of anthropogenic influences on the biological activity of soils in comparison with its basic indicators. This will allow us to establish a correlation between the soil fauna and the main traditional indicators of soil fertility, and significantly enhance their ecological significance in assessing agricultural practices in agricultural production. It has been revealed that the soils under study differ in relatively favorable physical properties, which in turn affects the distribution of the mesofauna. When the biological activity of soils was diagnosed, a decrease in the activity of soil mesofauna was noted in variants with high doses of phosphorus fertilizers depending on the type of soil. In light chestnut soils, meso-faunistic indices are reduced to (16 ind·m-2) and poor group diversity. The main representatives of the soil mesofauna are Carabidae, Formicidae, Lumbricidae, Scarabeidae. Typical species for fertilized soils are Carabidae, Lumbricidae, Scarabeidae. It was revealed that larvae of the mesofauna of soils from the family Curculionidae, Scarabaeidae are characteristic representatives. Representatives of these families can be used as bioindicators in conducting studies on the investigated soils. Bioindicator species of the investigated soils are present irrespective of the use of mineral fertilizers and, accordingly, the level of pesticide content.
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STOIAN, Vlad, Roxana VIDICAN, Ioan ROTAR, and Florin PĂCURAR. "Dynamics of Microbial Indicators in Waste Water." Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Agriculture 74, no. 2 (November 26, 2017): 116. http://dx.doi.org/10.15835/buasvmcn-agr:0036.

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Water ecosystems are constantly under the pressure of a high number of biotic and abiotic factors, and their action leads to the occurrence of fluctuations in species and populations. The specific response of organisms to external pressures leads to the reorganization of ecosystems, with qualitative and quantitative changes. The aim is to identify the microbial groups with the highest potential in the waste waters. Data were collected during 2015-16 in Bistrita. Identifying the bioindicators quality of microorganisms and their importance in ecosystems was done by comparing them with international databases. The use of microorganisms as bioindicators involves knowing the requirements for one or more environmental variables. The concept refers to the ability of microorganisms to accumulate pollutants. Flagellates are tolerant to acidity and react quickly and with sensitivity to environmental stress by inhibiting their movement. The multiplication of flagellates and filamentous bacteria is manifested through water disturbance and foam production.
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Bhusal, Daya Ram. "Free living soil Nematodes as Ecological Indicators." Nepalese Journal of Zoology 3, no. 1 (November 25, 2015): 59–62. http://dx.doi.org/10.3126/njz.v3i1.30866.

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Free living Nematodes communities used as bioindicators of soil health because their composition well correlates with, two critical ecological processes i.e. nitrogen cycling and decomposition in soil . Nematodes indices withstand statistical rigor better than abundances, proportions, or ratios of trophic groups. Nematodes indices respond to a variety of land-management practices, based largely on life history characteristics of families.
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Khanieva, I. M., S. A. Bekuzarova, R. Z. Abdulkhalikov, A. L. Boziev, and Yu M. Shogenov. "Bioindicators and environmental protection." E3S Web of Conferences 222 (2020): 05002. http://dx.doi.org/10.1051/e3sconf/202022205002.

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The plants capable to occlude the maximum quantity of the heavy metals (HM) from soil solution are studied. Plants - indicators of accumulation of heavy metals are allocated, the new directions on decrease in toxicity of the soil are offered. For the purpose of studying of sorption abilities of bean herbs studied accumulation of heavy metals on phases of development of plants. Biological features bean which are capable to occlude heavy metals from the soil and air and by that to clear the polluted site are established. Plants can be the main bioindicators of impurity of soils. For a start in different environments the content of heavy metals by means of a method of chemical analysis control was defined, then compared maximum permissible concentration and drew a conclusion about danger of complex influence to the person and a biota For strengthening of sorption brought tseolitsoderzhashchy clays of Alanit of a local origin at crops of bean herbs. It is revealed that the maximum sorption abilities are found in plants vyazelya motley, and in mix with an amaranth, sowed cherezryadno the maximum effect on decrease in heavy metals on the polluted site is reached. A plant the ambrosia polynnolistny most of all accumulates doses of heavy metals.
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Novoselova, Tatiana, Sophia Barinova, and Alexander Protasov. "Long-Term Dynamics of Trophic State Indicators in Phytoplankton of the Cooling Reservoir of a Nuclear Power Plant." Transylvanian Review of Systematical and Ecological Research 23, no. 1 (March 1, 2021): 1–14. http://dx.doi.org/10.2478/trser-2021-0001.

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Abstract The dynamics of long-term indicators of trophicity in the cooling pond of a nuclear power plant in Ukraine was analyzed by phytoplankton biomass and bioindicators of trophicity. Greater species richness correlated with the number of species-indicators of greater trophicity. During the contourization processes caused by the introduction of filter-feeding mollusks and changes in the operating mode of the nuclear power plant, there was a decrease in the abundance of phytoplankton and trophic state. During decontourization, there was a sequential “return” of previously eliminated taxa and the restoration of the number of indicator species.
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Moreira, Macarius Cesar Di Lauro, Deonir Secco, Luiz Antônio Zanão Júnior, Luciene Kazue Tokura, Araceli Ciotti de Marins, Maurício Antônio Pilatti, and Bruna De Villa. "Biological Quality Indicators of a Haplortox Soil Under Different Management Systems in Southern Brazil." Journal of Agricultural Science 10, no. 5 (April 11, 2018): 250. http://dx.doi.org/10.5539/jas.v10n5p250.

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The research was looking for the quick response of soil's microbiota to soil changes caused by management systems, changes to which biological indicators of soil quality are sensitive. In this context, this study aimed to evaluate the impacts of seven soil management systems, including in on hand covers of Pennisetum glaucum (PG), Avena strigosa (AS), Stizolobium aterrimum (SA), EF Pisum sativum (PS) + Avena strigosa (AS), and on the other hand, No soil tillage with gypsum application (NTSG), No soil tillage with scarification (NTSS) and No soil tillage (NTS), on soil quality bioindicators. The bioindicators recorded from top soil samples were collected from the first 10 cm at pre-planting, at pre-flowering and at post-harvest of the soybean, from July 2014 to March 2015 were Total organic carbon (TOC), Soil microbial biomass carbon (SMBC), Soil basal respiration, Respiratory coefficient (qCO2), Microbial coefficient (qMIC), and its relationship with soybean yields. The seven treatments were arranged in the field according to a completely randomized experimental, Analysis of variance (Anova) for each of the bioindicators and comparison of treatment mean values using Tukey test at 5% probability were carried out. SA, the AS+PS consortium and the no-tillage system led to significant improvement of the biological attributes of the soil. The management systems did not change the yield of soybean grain.
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Nurhaeni, Nurhaeni, Fitri A. Bande, and Rismawaty Sikanna. "KAJIAN EKSTRAK ETANOL BUNGA BOGENVIL (Bougenvillea spectabillis Willd) SEBAGAI BIOINDIKATOR ASAM BASA." KOVALEN 3, no. 3 (December 28, 2017): 277. http://dx.doi.org/10.22487/j24775398.2017.v3.i3.9336.

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Studies of ethanol extract of bougainvillea flowers (Bougenvillea spectabillis Willd) as bioindicators of the acid-base has been done. The aims to determine the content of chemical compounds contained in extracts of bougainvillea flowers and bougainvillea flower extract pH stretch. Achievement of the objectives has done through the test of ethanol extract of bougainvillea identification of compounds and the determination of the acid-base stretch of pH indicator is. The obtained results showed that bogenvil ethanol extract containing flavonoids with 401 nm absorption and provided a color change in the acid and alkaline condition the color is yellow. The appropriate acid-base titration is used as bioindicators of a strong acid titration with a strong base, weak acid with a strong base and a weak base with a strong acid.Keywords: Flowers bougainvillea, indicators, bases acid titration
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Dissertations / Theses on the topic "Indicators; Bioindicators"

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Turnbull, David Andrew. "The water quality of the Ouseburn : a part urban, part rural catchment." Thesis, Northumbria University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241516.

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Miniutti, Danielle M. "Bioindicators of Desorbed Contaminants Following Resuspension of Penobscot River Sediments." Fogler Library, University of Maine, 2007. http://www.library.umaine.edu/theses/pdf/MiniuttiDM2007.pdf.

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Gill, Margaret Elizabeth. "Estuarine fish and their health, as indicators of anthropogenic change." Thesis, University of Newcastle Upon Tyne, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388651.

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Summers, Jay W. "Feathers as bioindicators of PCB exposure in clapper rails /." View online, 2009. http://repository.eiu.edu/theses/docs/32211131565121.pdf.

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Schneider, Andrea. "Polygon ponds and their ostracode assemblages as bioindicators in the Indigirka Lowland (north-east Siberia)." Thesis, Stockholms universitet, Institutionen för naturgeografi och kvartärgeologi (INK), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-94118.

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Freshwater ostracods (crustacea, ostracoda) are sensitive to environmental conditions, and are widely used as biological indicators for past and present environmental changes. The abundance and diversity of ostracods from permafrost areas is currently documented in scattered records with incomplete ecological characterizations. The objectives of the thesis were to determine the taxonomic and ecological range of ostracod assemblages and their habitat conditions in polygon ponds in different landscape units of the Indigirka Lowland (north-east Siberia, Russia). A monitoring approach focused seasonal meteorological and limnological variability of a selected pond site, its ostracod population dynamics, and the geochemical properties of ostracod valve calcite. Shallow, well-oxygenated, and dilute ponds with slightly acidic to circumneutral pH hosted an abundant and diverse ostracod fauna. A total of 4849 identified ostracods from eight species and three taxa represent the first record of the ostracod fauna in the Indigirka Lowland. Fabaeformiscandona krochini and Fabaeformiscandona groenlandica were documented for the first time in continental Siberia. Fabaeformiscandona sp. I and Fabaeformiscandona sp. II were newly found taxa holding a strong indicative potential for hydrochemical parameters. Repeated sampling of a typical low-center polygon pond revealed detailed insights in the population dynamics of Fabaeformiscandona pedata and its reproduction strategy. Substrate properties, physical and hydrochemical conditions in the studied ponds offered largely homogeneous habitats across different landscape units and pond types to ostracods. River flooding and differences in morphology between pond types resulted in variations in sediment, vegetation, hydrochemical and stable water isotope composition of the ponds. Ponds in the river floodplain and intrapolygon ponds hosted the most diverse ostracod fauna while species diversity was lowest in thaw lakes. Air temperature and precipitation were identified as the main external drivers of water temperatures, water levels, ion concentrations, and stable water isotope composition in small periglacial waters on diurnal and seasonal scales. Ostracod valve calcite recorded seasonal variations in stable oxygen isotopes of the ambient waters, but needs to be interpreted carefully with regard to species-specific background knowledge.
POLYGON - Polygons in tundra wetlands: state and dynamics under climate variability in polar regions
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Cotín, Martínez Javier. "Birds as Bioindicators of Pollution in Aquatic and Terrestrial Environments." Doctoral thesis, Universitat de Barcelona, 2012. http://hdl.handle.net/10803/101099.

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Birds have been widely used as bioindicators. In this study we face the use of birds as bioindicators of metal pollution in two different scenarios of contamination: one that takes place in an aquatic environment, the Ebro river basin, and a second that occurs in a terrestrial environment, the Bolivian Andes. In the case of the Ebro river basin, the pollution threat is a factory located at the river bend, close to Flix, that due to its long operational activity and along with the construction of a dam next to the plant around 1960, resulted in the accumulation of 200,000–360,000 tons of industrial wastes in the riverbed, occupying an area of 700 m of length and 60 m of width. In this study case we evaluated whether aquatic birds such as the Purple Heron reflect the potential pollutant exposure from Flix Reservoir among different riverine and deltaic areas, and assess their usefulness as bioindicators. Also we examined if the polluted wastes of Flix reservoir affect the levels of pollution of the habitats where waterbird populations of the Ebro Delta (situated 90 km downstream) forage and feed. As results stable isotopes shown the high nitrification and lower carbon signatures in the river, and together with the niche width metrics, that Common and Sandwich Tern behave as strict specialists at the Ebro Delta, with narrow niche widths, while in the opposite way, Little Tern, Little Egret, Purple Heron, Night Heron and the Moorhen behave like generalists foragers, with broad niche widths. Mercury levels in nestlings of Purple Heron at Flix site and eggs of Audouin’s Gull, Little Tern and Common Tern ‘Banya’ at the Ebro Delta are high enough to be of special concern. Arsenic (specially used in combination with carbon signatures) discriminates outstandingly between marine and freshwater species. Both eggs and nestling feathers of Purple Herons are adequate bioindicators for trace element pollution, but nestling feathers present certain advantages. The six selected blood parameters (TOSC ROO*, TOSC OH*, BhCE, CbE, LDH and MN) provide the first evidence of an association of biological responses with pollutants in heron species. The second study case takes place in Bolivia. Anthropogenic mining has taken place in the Bolivian Andes since at least the fifteenth century. Particularly the East of Oruro Department in the Eastern Andean Cordillera is affected by a long term history of mining. These mining activities were characterized by the deposition of large tailing piles, which accumulated in abandoned and active mines, where trace metals such as lead, arsenic, cadmium, and antimony could reach surface waters and soils, and so the biota. In this case we evaluated the potential of Tinamou species as sentinels of exposure to local trace metal pollution and studied different routes of lead accumulation into the sentinel species, in order to assess the usefulness of feather levels as a measure of the exposure to this pollutant. As results we found that the detected small home ranges detected in Ornate Tinamou (lower than 1 km2) and their sedentary habits make of this species an adequate bioindicator of local pollution. We recommend feathers for future monitoring programs as they are a non invasive sample. Higher rates of histopathological damage were found in kidney at the polluted sites. We detected high levels of trace elements detected at the polluted sites in the two studied species of Tinamou (Ornate and Darwin Tinamou), many of them trespassing hazard levels. The calamus is the most suitable section for assessing the original endogenous lead levels in feather samples.
En este estudio las aves serán utilizadas como bioindicadoras de contaminación por metales pesados en dos escenarios diferentes: el primero en un ambiente acuático, la cuenca del rio Ebro, mientras que el segundo tiene lugar en un ambiente terrestre, los Andes bolivianos. En el primer caso la fuente de contaminación es una fábrica localizada cerca de Flix, que produjo cientos de toneladas de lodos tóxicos. Así evaluamos si aves acuáticas como la Garza imperial reflejan la exposición potencial a los contaminantes de Flix entre zonas fluviales y deltaicas, comprobando su utilidad como bioindicadoras, y también examinamos si dichos residuos afectan a la contaminación de los hábitats donde la avifauna del Delta del Ebro se alimenta. Como resultados los isótopos estables mostraron la alta nitrificación y signaturas más bajas de carbono en el río y observamos que el Charrán común y patinegro actúan como especialistas en el Delta, mientras que Charrancito, Garceta común, Garza Imperial, Martinete y Gallineta de agua son generalistas, presentando amplios nichos tróficos. El mercurio en volantones de Garza Imperial en Flix y huevos de Gaviota de Audouin, Charrancito y Charrán común “Banya” en el Delta presentan valores alarmantes. El arsénico discrimina claramente entre especies marinas y dulceacuícolas. Ambos huevos y plumas son bioindicadores adecuados de contaminación, pero las plumas presentan más ventajas. El segundo estudio tiene lugar en los Andes Bolivianos, donde la actividad minera ha dado lugar a la acumulación de residuos. Evaluamos el potencial de las especies de Tinamúes como bioindicadoras de la exposición a dicha contaminación, incluyendo las diferentes vías de acumulación de plomo en las especies bioindicadoras. Como resultados, los pequeños territorios detectados y hábitos sedentarios hacen del Tinamú Pisacca un bioindicador adecuado de la contaminación local. Se recomienda el uso de plumas al son una muestra no invasiva. El mayor daño histopatológico se encontraron en muestras de riñón de las zonas contaminadas. La contaminación minera ha quedado de manifiesto con los altos niveles detectados en las dos especies estudiadas de Tinamú. El cálamo es la sección más adecuada para la evaluación de los niveles originales endógenos de plomo.
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Belyanovskaya, Alexandra. "Composition élémentaire de mammifères dans les zones naturelles et anthropiques et et impacts potentiels avec la méthode USEtox." Thesis, Paris, ENSAM, 2019. http://www.theses.fr/2019ENAM0049.

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L'hétérogénéité géochimique de la biosphère, due a des conditions naturelles et anthropiques différentes, est en train de changer de manière significative du fait du développement de l'homme et de la société. cependant, dans de nombreuses études, les données sur l'interaction des éléments chimiques dans ces cadres de différentes conditions écologiques locales sont absentes; peu d'attention est accordée a l'approche complexe, par exemple, l'utilisation du modèle d’évaluation des impacts sur les organismes vivants. la méthode de l'analyse du cycle de vie (acv) permet de mesurer l'ampleur et l'importance de l'impact sur l'environnement et l'organisme humain. le coefficient caractéristique (cf) - est une valeur tabulaire, proposée par le modèle, selon l'emplacement de la région. dans ce document, il est propose de modifier ce coefficient en introduisant les résultats de l'analyse biogéochimique de territoires présentant des situations écologiques différentes, afin de les classer plus précisément. cette modification détermine la pertinence de l’étude. l’objet de la recherche est déterminé par évaluation de l’état géo-écologique des zones locales de la Russie et du Kazakhstan avec l’aide des 'indicateurs de la composition élémentaire des organes et des tissus des mammifères et d'un classement de la toxicité des différents éléments a l'aide du modèle usetox. cette méthode permet d’élargir le modèle en utilisant des données locales sur la composition chimique du produit alimentaire - le porc -et ensuite peut être utilisée pour évaluer les risques sanitaires pour la population des territoires étudiés
The geochemical heterogeneity of the biosphere, due to different natural and anthropogenic conditions, is changing significantly as a result of the development of man and society. Modern geo-ecological studies of different territories prove the fact of close connections of living organisms with the environment. However, little attention is paid to the complex approach, for example with the use of the model of impact assessment on living organisms. The Life Cycle Assessment (LCA) method, is allowed the magnitude and significance of the impact on the environment and the human organism to be monitored. The characteristic coefficient (CF) - is a tabular value, proposed by the model, depending on the region's location. In this thesis, however, it is proposed to modify this coefficient by introducing the results of biogeochemical analysis of territories with different ecological situations, in order to rank them more precisely. It is this modification, which determines the relevance of the study. The PhD thesis is purposed to assess the geo-ecological state of local areas of Russia and Kazakhstan with the use of indicators of the elemental compositions of organs and tissues of mammals, and a ranking of the toxicity of individual elements using the USEtox model. The modification method of the USEtox impact assessment model, using the results of the chemical analysis, can be used as a local supplement in the assessment of toxic effects on the population
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Naigaga, Irene. "Use of bioindicators and biomarkers to assess aquatic environmental contamination in selected urban wetlands in Uganda." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1002603.

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Pollution of aquatic resources in Uganda is on the increase and the trends are expected to increase with increase in population size and urbanisation. Assessment and mitigation of the environmental impacts on water quality and biodiversity have now become necessary. The aim of the study was to integrate invertebrate and fish as bioindicators and fish histopathology as a biomarker in the assessment of water quality deterioration in urban wetlands in Uganda. The integration harnesses the advantages and counteracts the shortcomings of each method and thus builds a more robust diagnostic tool that gives a better view of the impacts to the entire ecosystem. Four endpoints which included, physicochemical variables, benthic macroinvertebrate bioindicators, fish bioindicators and fish histopathology biomarkers were compared between varied effluent-impacted wetlands (Murchison Bay in Kampala, and Kirinya, Masese and Winday Bay in Jinja) and a non-impacted reference wetland (Lwanika in Mayuge). Results from the effluent-impacted sites differed from the less impacted reference site. The two sampling locations at Murchison Bay (inshore and offshore) and one sampling location at Kirinya (inshore), that were highly impacted with urban effluent, showed elevated nutrient levels, low pH, dissolved oxygen and secchi depth readings. This corresponded with low invertebrate taxa and fish species diversity and richness; and severe histopathological responses in liver, gonads and gills of O. niloticus. Sensitive taxa such as ephemeroptera and trichoptera were completely absent while pollution tolerant taxa Chironomus sp, Corbicula and Oligochaeta were present. Also notable was the absence of many native haplochromines and presence of mainly Brycinus sadleri, Oreochromis niloticus and leucostictus. The organs manifested high prevalence of severe inflammatory and regressive changes and higher organ indices that fell within the pathological category. These sites were consistently classified as highly polluted under the four endpoints. The reference site was classified as least polluted while Masese and Winday Bay were moderately polluted. Results suggested that the approach of using invertebrate and fish as bioindicators and the fish histopathology as a biomarker, in relation to water quality physicochemical variables was a useful tool in highlighting the spatial differences in environmental quality.
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Stauffer, Marie. "Impact des taillis à très courte rotation de saules sur les propriétés fonctionnelles des sols et définition d'indicateurs de qualité." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0030/document.

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Les Taillis à Très Courte Rotation sont une culture destinée à produire des plaquettes de bois énergie. L'objectif de la thèse était d'étudier l'impact des TTCR sur le fonctionnement des sols et de proposer des indicateurs de qualité. Cinq prélèvements ont été effectués chaque printemps et automne entre 2010 et 2012 sur les sols de quatre couples de TTCR et bandes enherbées, d'une forêt alluviale et d'un agrosystème, localisés dans la vallée de l'Aisne. Les paramètres suivants ont été mesurés: matières organiques, carbone total, capacité d'échange cationique et éléments échangeables, phosphore disponible, minéralisation du carbone et de l'azote, biomasse, abondance et diversité des communautés lombriciennes, abondance relative et diversité des communautés fongiques et bactériennes, activités enzymatiques, caractérisations physiques et chimiques des matières organiques. 6 années après la mise en place des TTCR, les densités fongiques et lombriciennes, la respiration basale, l'activité laccase étaient plus élevées dans les TTCR par rapport à l'agrosystème. Ces modifications peuvent être reliées aux changements quantitatifs et qualitatifs des matières organiques (augmentation du C/N, diminution de l'indice hydrogène). L'azote et le phosphore semblent être limitant mais les retours importants et le turn over rapide de la MO viennent tamponner les fortes exportations. Ces mesures ont conduit à la définition d'indicateurs et aboutissent à la proposition de trois indices : fertilité, activité biologique, abondance et diversité des communautés biologiques. L'utilisation des courbes de réponses principales confirme l'effet positif des TTCR sur la qualité du sol, observée avec le calcul d'indices synthétiques
Short Rotation Coppices (SRC) are a crop system intended to produce energy wood chips. This thesis aimed at assessing the impact of SRC on soil functioning and proposing quality indicators. Five samplings were performed in spring and autumn between 2010 and 2012 on plots including four couples of SRC and grassland, an alluvial forest and an agrosystem, in the Aisne valley. The following parameters were monitored: organic matter, total carbon, cation capacity exchange, available phosphorus, carbon and nitrogen basal respiration, earthworm biomass, density and diversity, fungal and bacterial density and diversity, enzymatic activity, physical and chemical organic matter characterisations. 6 years after conversion to SRC, earthworm and fungal density, basal respiration and laccase activity were higher in SRC soil compared to conventional agrosystem. These changes can be linked to qualitative and quantitative organic matter evolutions (increase of the C/N ratio and decrease of hydrogen index). Nitrogen and phosphorus seemed to be limiting factors for SRC crop yields. However, soil nutrient return and the good turnover of organic matter can buffer strong exportations. The measured parameters led to indicator definition and proposition of three indices: fertility, biological activity, density and diversity of biological communities. Principal response curves confirmed the positive effect of SRC on soil quality as observed with synthetic indices calculation
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Kermarrec, Lénaïg. "Apport des outils de la biologie moléculaire pour l'utilisation des diatomées comme bioindicateurs de la qualité des écosystèmes aquatiques lotiques et pour l'étude de leur taxonomie." Thesis, Grenoble, 2012. http://www.theses.fr/2012GRENA010.

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La Directive Cadre Européenne sur l'eau impose d'évaluer la qualité des cours d'eau au moyen d'indicateurs chimiques et biologiques dont les diatomées font partie. Les indices basés sur la composition taxonomique et l'abondance relative des taxa de diatomées sont robustes. Cependant, de nombreux échantillons doivent être analysés chaque année alors que l'identification de ces micro-algues en microscopie optique est difficile à cause des incertitudes taxonomiques, et nécessite temps et expertise. Ainsi, des améliorations peuvent encore être apportées pour faciliter le suivi en routine de la qualité de l'eau. Les techniques de biologie moléculaire sont des outils efficaces pour identifier les microorganismes et pourraient donc être utilisées pour améliorer l'identification des diatomées. Les objectifs de cette thèse étaient donc de compléter les connaissances sur la taxonomie des diatomées d'eau douce par des méthodes moléculaires et de progresser dans le développement d'un outil moléculaire permettant l'identification des diatomées dans des échantillons naturels, en vue de son utilisation en bioindication. L'étude de la taxonomie de plusieurs groupes de diatomées a été réalisée en combinant des approches morphologiques et des approches moléculaires. Nos travaux ont montré les capacités des séquences ADN pour discriminer les taxa de diatomées et révéler leurs relations phylogénétiques. L'utilisation de séquences ADN a montré que les critères morphologiques utilisés pour identifier les diatomées ne correspondaient pas systématiquement à leurs relations phylogénétiques. L'utilisation de différents marqueurs a permis des discriminations à différents niveaux taxonomiques. Nos résultats ont également révélé l'importance de combiner des approches complémentaires, morphologiques et moléculaires, pour améliorer notre compréhension des relations entre les différents taxa de diatomées et ainsi stabiliser leur taxonomie. Les séquences ADN permettant une discrimination des taxa de diatomées, nous avons testé un outil moléculaire de séquençage haut-débit, le pyroséquençage 454, dans le but d'identifier les taxa composant les communautés de diatomées. Nous avons ainsi assemblé des bases de séquences de référence bénéficiant d'une identification taxonomique. Nous avons également participé au développement d'outils bioinformatiques nécessaires à l'analyse des données de pyroséquençage. Enfin, nous avons pu tester ces outils pour établir des inventaires taxonomiques de diatomées dans des communautés artificielles (mélanges de souches) et dans des communautés environnementales (biofilms d'eau douce). Ces études ont prouvé le potentiel du pyroséquençage 454 pour étudier les communautés de diatomées à des niveaux taxonomiques précis. La comparaison de différents marqueurs nucléiques a révélé que le marqueur rbcL était le marqueur le plus adapté à l'identification des diatomées par pyroséquençage. En effet, en prenant en compte les bases de séquences de référence, la reproductibilité et les biais de la méthode ainsi que le pouvoir résolutif du marqueur, l'utilisation du rbcL a permis la meilleure estimation de la composition en diatomées d'échantillons complexes. Des progrès devront encore être faits avant de pouvoir utiliser les outils moléculaires pour évaluer la qualité de l'eau par les diatomées. Cependant nos différentes études permettront de guider les prochaines analyses de manière à aboutir à un suivi de la qualité de l'eau basé sur des inventaires moléculaires des taxa de diatomées
The European Water Framework Directive requires assessing the river quality using chemical and biological indicators among which are diatoms. Indices based on taxonomic composition and relative abundance of diatom taxa are robust. However, thousands of diatom samples are analyzed every year while microscopic identification is difficult due to taxonomic uncertainties, and requires time and expertise. Thus, it is still possible to improve the routine monitoring of water quality. The molecular biology techniques are accurate tools to identify microorganisms and could be used to enhance diatom identification. The objectives of this thesis were therefore to improve our knowledge on the freshwater diatom taxonomy by molecular methods and to progress in the development of a molecular tool in order to identify diatoms in natural samples, thus improving bioindication tools. The taxonomic study of several groups of diatoms was achieved by combining morphological and molecular approaches. Our results showed the capacity of DNA sequences to discriminate diatom taxa and revealed their phylogenetic relationships. The use of DNA sequences showed that the morphological criteria used to identify diatoms do not correspond systematically to their phylogenetic relationships. The use of different markers allowed discrimination at different taxonomic levels. Our results also revealed the importance of combining complementary approaches, morphological and molecular, to improve our understanding of the relationships between different diatom taxa and thus stabilize their taxonomy. As DNA sequences allowed discrimination of diatom taxa, we tested a molecular tool of high throughput sequencing, 454 pyrosequencing, in order to identify the diatom composition of communities. We assembled reference libraries of sequences linked to taxonomic identification and we contributed to the development of bioinformatic tools required to analyze data from pyrosequencing. Finally, we tested these tools to establish taxonomic inventories of diatoms in artificial communities (mixtures of strains) and environmental communities (freshwater biofilm samples). The studies showed the potential of 454 pyrosequencing to accurately analyze diatom communities. The comparison of different nucleic markers revealed that the rbcL marker was the most suitable to identify diatoms using pyrosequencing. Indeed, taking into account reference libraries, reproducibility and bias of the method, and the resolving power of marker, the use of rbcL allowed the best estimation of the diatom composition in complex samples. Improvements will be necessary to use molecular tools in order to assess water quality using diatoms. However our studies lead the way for future experiments in order to achieve a monitoring of water quality based on molecular inventories of diatom taxa
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Books on the topic "Indicators; Bioindicators"

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Catherine, Souty-Grosset, ed. Management of freshwater biodiversity: Crayfish as bioindicators. Cambridge: Cambridge University Press, 2012.

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Bellinger, E. G. Freshwater algae: Identification and use as bioindicators. Chichester, West Sussex, UK: Wiley-Blackwell, 2010.

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Bellinger, E. G. Freshwater algae: Identification and use as bioindicators. Chichester, West Sussex, UK: Wiley-Blackwell, 2010.

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Bellinger, E. G. Freshwater algae: Identification and use as bioindicators. Chichester, West Sussex, UK: Wiley-Blackwell, 2010.

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Adamus, Paul R. Bioindicators for assessing ecological integrity of prairie wetlands. Corvallis, OR: U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Western Ecology Division, 1996.

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Academy, Indian National Science, and International Union of Biological Sciences., eds. International Symposium on Biological Monitoring of the State of the Environment (Bioindicators), New Delhi, 11-13 October 1984. New Delhi: The Academy, 1985.

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Smith, Gretchen Cole. Ozone bioindicators and forest health: A guide to the evaluation analysis, and interpretation of the ozone injury data in the forest inventory and analysis program. Newtown Square, PA: United States Dept. of Agriculture, Forest Service, Northern Research Station, 2008.

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Smith, Gretchen Cole. Ozone bioindicators and forest health: A guide to the evaluation analysis, and interpretation of the ozone injury data in the forest inventory and analysis program. Newtown Square, PA: United States Dept. of Agriculture, Forest Service, Northern Research Station, 2008.

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Smith, Gretchen Cole. Ozone bioindicators and forest health: A guide to the evaluation analysis, and interpretation of the ozone injury data in the forest inventory and analysis program. Newtown Square, PA: United States Dept. of Agriculture, Forest Service, Northern Research Station, 2008.

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Smith, Gretchen Cole. Ozone bioindicator sampling and estimation. Newtown Square, PA: U.S. Dept. of Agriculture, Forest Service, Northern Research Station, 2007.

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Book chapters on the topic "Indicators; Bioindicators"

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Denslow, Nancy D., and Tara Sabo-Attwood. "Molecular Bioindicators of Pollution in Fish." In Environmental Indicators, 695–720. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-9499-2_40.

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Varanasi, Usha, John E. Stein, Lyndal L. Johnson, Tracy K. Collier, Edmundo Casillas, and Mark S. Myers. "Evaluation of Bioindicators of Contaminant Exposure and Effects in Coastal Ecosystems." In Ecological Indicators, 461–98. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-4659-7_28.

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Bergman, Harold L., and Foster L. Mayer. "Development of bioindicators for environmental protection programs in estuarine ecosystems: philosophy and strategy." In Ecological Indicators, 1517–18. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-4661-0_50.

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Gonzélez, Mónica Viétnica Alegre, and Carlos Sénchez Rivas. "The tobacco plants as bioindicators of damage of ozone in the Mexico City metropolitan area." In Ecological Indicators, 1530–31. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-4661-0_60.

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Boháč, Jaroslav, and Zuzana Jahnova. "Land Use Changes and Landscape Degradation in Central and Eastern Europe in the Last Decades: Epigeic Invertebrates as Bioindicators of Landscape Changes." In Environmental Indicators, 395–420. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-9499-2_24.

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Paoletti, M. G., and D. Sommaggio. "Biodiversity Indicators for Sustainability. Assessment of Rural Landscapes." In Bioindicator Systems for Soil Pollution, 123–40. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1752-1_11.

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Spurgeon, D. J., R. D. Sandifer, and S. P. Hopkin. "The Use of Macro-Invertebrates for Population and Community Monitoring of Metal Contamination — Indicator Taxa, Effect Parameters and the Need for a Soil Invertebrate Prediction and Classification Scheme (SIVPACS)." In Bioindicator Systems for Soil Pollution, 95–110. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1752-1_9.

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Bloem, Jaap, and Anton M. Breure. "Chapter 8 Microbial indicators." In Bioindicators & Biomonitors - Principles, Concepts and Applications, 259–82. Elsevier, 2003. http://dx.doi.org/10.1016/s0927-5215(03)80138-8.

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Bosch, Peter, and Ulla Pinborg. "Chapter 25 Bio-indicators and the indicator approach of the European Environment Agency." In Bioindicators & Biomonitors - Principles, Concepts and Applications, 903–16. Elsevier, 2003. http://dx.doi.org/10.1016/s0927-5215(03)80155-8.

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Dokulil, M. T. "Chapter 9 Algae as ecological bio-indicators." In Bioindicators & Biomonitors - Principles, Concepts and Applications, 285–327. Elsevier, 2003. http://dx.doi.org/10.1016/s0927-5215(03)80139-x.

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Conference papers on the topic "Indicators; Bioindicators"

1

Чернова, Е. Н., Д. Д. Гредюха, and С. Г. Юрченко. "MERCURY IN BIOINDICATORS OF THE COASTAL WATERS OF VLADIVOSTOK IN SUMMER 2020." In Геосистемы Северо-Восточной Азии. Crossref, 2021. http://dx.doi.org/10.35735/tig.2021.43.65.048.

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Определены концентрации ртути в талломах массовых видов водорослей-биоиндикаторов родов Ulva lactuca, Ulvaria splendens, Sargassum miyabei, Sargassum pallidum, из прибрежных вод вокруг г. Владивостока Японского моря за летний период 2020 г. Содержание Hg варьируется от 5,8 до 41,4 нг/г сухой массы. Наибольшая концентрация наблюдается в ульве, отобранной из района бывшего полигона ТБО «Горностай», где ранее отмечались повышенные концентрации Cu, Pb, Fe, Zn. Отмечена тенденция уменьшения концентраций ртути в водорослях с июня по июль, как для ульвы, так и для саргассума. Водоросли вокруг Владивостока содержат очень низкие концентрации ртути и не превышают ПДК промысловых водорослей – 500 нг/г сухой массы. Полученные концентрации соответствуют величине Q1 – 25 процентилю общемировой выборки для зеленых и в основном Q1 для бурых, что говорит об отсутствии загрязнения ртутью литоральной зоны вокруг г. Владивосток в исследуемый период. The concentrations of mercury in mass species of algae - bioindicators of the genera Ulva lactuca, Ulvaria splendens, Sargassum miyabei, Sargassum pallidum, from coastal waters around Vladivostok, the Sea of Japan in summer of 2020 were determined. The Hg concentrations varies from 5.8 to 41.4 ng / g dry weight. The highest concentration is observed in the Ulva, taken from the area of the former landfill "Gornostay", where previously there were increased concentrations of Cu, Pb, Fe, Zn in algae. A tendency of a decrease in mercury concentrations in algae from June to July was noted for both Ulva and Sargassum in connection of atmosphera precipitations decreasing. Algae around Vladivostok contained very low concentrations of mercury and did not exceed the MPC for commercial algae - 500 ng / g dry weight. The obtained concentrations correspond to the value of Q1 - the 25th percentile of the global sample for green algae and mainly Q1 for brown ones, which indicates the absence of mercury contamination of the littoral zone around Vladivostok during the study period.
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