Relevant bibliographies by topics / Bioindicator species

Academic literature on the topic 'Bioindicator species'

Author: Grafiati
Published: 7 July 2024

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Contents

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

Journal articles on the topic "Bioindicator species":

1

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.
2

Salinitro, Mirko, Alessandro Zappi, Sonia Casolari, Marcello Locatelli, Annalisa Tassoni, and Dora Melucci. "The Design of Experiment as a Tool to Model Plant Trace-Metal Bioindication Abilities." Molecules 27, no. 6 (March 11, 2022): 1844. http://dx.doi.org/10.3390/molecules27061844.

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Bioindicator plants are species that have the capacity to linearly uptake some elements (metal and metalloids) from the growing substrate, thus reflecting their concentration in the soil. Many factors can influence the uptake of these elements by plants, among which is the simultaneous presence of several metals, a common situation in contaminated or natural soils. A novel approach that can be used to validate the bioindication ability of a species growing on a polymetallic substrate is the design of experiment (DoE) approach. The aim of the present study was to apply the DoE in full factorial mode to model the Cu, Cd, Pb, Zn, and Cr bioindication capacity of Polygonum aviculare, used as the model plant. The results showed that P. aviculare has the ability to bioindicate Cd and Cr with a linear uptake (from 0.35 to 6.66, and 0.1 to 3.4 mg kg−1, respectively) unaffected by the presence of other metals. Conversely, the uptake of Pb, Cu, and Zn is strongly influenced by the presence of all the studied metals, making their concentration in the plant shoot not proportional to that of the soil. In conclusion, these preliminary results confirmed that the DoE can be used to predict the bioindicator abilities of a plant for several elements at the same time and to evaluate the interactions that can be established between variables in the growing medium and in the plant itself. However, more studies including other plant species are needed to confirm the effectiveness of this method.
3

SHIMANO, SATOSHI. "Aoki’s oribatid-based bioindicator systems*." Zoosymposia 6, no. 1 (December 20, 2011): 200–209. http://dx.doi.org/10.11646/zoosymposia.6.1.30.

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The “MGP analysis” created by Dr. J. Aoki in 1983 and the “100 oribatid species” system proposed by Aoki in 1995, both for using oribatid communities as bioindicators, are described herein and compared to some other bioindicator protocols. By using the term “naturalness”, Aoki proposed to explain human impact on a gradient of several environments ranging from urban boulevard trees to intact forests.Although using “naturalness” was a vague concept, the idea might reflect the process of plant succession and changes in oribatid assemblages associated with different seral stages. Therefore, the use of oribatid mites as bioindicators might also be based on succession of the oribatid fauna.
4

Batista, P. F., A. C. Costa, C. A. Megguer, J. S. Lima, F. B. Silva, D. S. Guimarães, G. M. Almeida, and K. J. T. Nascimento. "Pouteria torta: a native species of the Brazilian Cerrado as a bioindicator of glyphosate action." Brazilian Journal of Biology 78, no. 2 (October 23, 2017): 296–305. http://dx.doi.org/10.1590/1519-6984.07416.

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Abstract In Brazil, the expansion of agricultural activity and the associated indiscriminate use of herbicides such as glyphosate is directly related to the loss of biodiversity in the Cerrado. The identification of plant species as bioindicators of herbicide action, especially species native to the area, can help in monitoring the impacts of xenobiotics in the remaining Cerrado. Thus, this study was designed to evaluate the possible use of the native Cerrado species Pouteria torta as a bioindicator of glyphosate action via changes in physiological performance. At 16 months after sowing, the effect of glyphosate was evaluated by applying the following doses: 0 (control), 25, 50, 100, 200, 400, 800, and 1200 g a.e. ha-1. In response to glyphosate, P. torta exhibited reductions in photosynthesis and chloroplastid pigment content, as well as accumulation of shikimic acid and the occurrence of chlorosis and necrosis. These changes demonstrate the high sensitivity of P. torta to glyphosate and its potential for use as a bioindicator of this herbicide.
5

Yuldasheva, Sokhiba, and Zafar Norboev. "Investigating the urban land pollution level according to the bioindicator properties of plants." BIO Web of Conferences 65 (2023): 07005. http://dx.doi.org/10.1051/bioconf/20236507005.

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In this article, the bioindicator properties of Taraxacum officinale, a common plant in urban areas, are studied. The existence of a correlation between the environment and the content of heavy metals in plants determines the use of plants as indicators of natural and anthropogenic landscapes. The existence of a relationship between the amount of heavy metals in the environment and plants determines their use as indicators of pollution of natural and anthropogenic landscapes. Plant organisms are recognized as adequate bioindicators of environmental quality. It is T. officinale that is suitable for identification and has adequate response to changes in environmental conditions. As a bioindicator, plants in urban and industrial areas are used for biomonitoring. In our scientific research, the use of T. officinale species as a bioindicator of atmospheric and soil pollution was investigated for the first time in the conditions of Uzbekistan. In order to determine the accumulation of some heavy metals in the observation areas, the correlation of climate, soil and plant indicators was determined using mathematical analysis methods.
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Salvaggio, Antonio, Roberta Pecoraro, Chiara Copat, Margherita Ferrante, Alfina Grasso, Elena Maria Scalisi, Sara Ignoto, et al. "Bioaccumulation of Metals/Metalloids and Histological and Immunohistochemical Changes in the Tissue of the European Hake, Merluccius merluccius (Linnaeus, 1758) (Pisces: Gadiformes: Merlucciidae), for Environmental Pollution Assessment." Journal of Marine Science and Engineering 8, no. 9 (September 15, 2020): 712. http://dx.doi.org/10.3390/jmse8090712.

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Pollution and other types of environmental stress do not spare marine environments, especially those affected by high industrial pressure. Fish, especially coastal species, are used for monitoring the marine environment because they are particularly efficient as bioindicators thanks to their ability to bioaccumulate and biomagnify along the trophic chain. The aim of this research is to evaluate the bioaccumulation and the indirect bioindication ability of the European Hake, Merluccius merluccius (Linnaeus, 1758), one of the most important commercial fish species of the Mediterranean Sea. Morphological and histological alterations of the main target organs, such as liver and gills, have been investigated and the results showed a steatosis in the hepatic tissue. The accumulation of heavy metals has been analyzed by inductively coupled plasma mass spectrometry and for several metals it was showed a different concentration in the two sexes. Moreover, the expression of metallothioneins 1 and Heat Shock Protein 70 has been assessed by immunohistochemistry and did not show high level of expression. We underline the importance of contamination evaluation in commercial fish species and the utilization of the ichthyofauna as bioindicator of environmental quality.
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De Paiva, Luigi Pereira, Vinicius Braga Cavalcanti, Aldeney Andrade Soares Filho, Winston Kleine Ramalho Viana, Marcos Luiz da Silva Apoliano, and Rossi Lelis Muniz Souza. "WATER QUALITY AND PHYTO-ZOOPLANKTONIC BIOINDICTORS IN THE COCÓ RIVER ESTUARY, FORTALEZA/CE." Revista Contemporânea 3, no. 11 (November 8, 2023): 20833–48. http://dx.doi.org/10.56083/rcv3n11-051.

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With the aim of analyzing water quality and verify the presence of phyto-zooplanktonic bioindicators in the Cocó River estuary, monthly plankton collections were carried out between April/22 and April/23. In situ the parameters of water temperature and transparency, salinity, pH, dissolved oxygen (DO), and phosphate and ammonia contents were obtained. The phyto-zooplankton was collected with a specific net and, in the laboratory, analyzed using a trinocular microscope with an attached camera. The presence of Escherichia coli was also verified. The results showed water with transparency characteristic of mesotrophic water, while the phosphate and ammonia contents were similar to those of eutrophic waters. 13 phytoplankton species were identified, distributed in the Cyanophyceae, Bacillariophyceae and Chlorophyceae Classes. As bioindicator species of eutrophicated waters were identified: Cylindrospermopsis raciborskii, Nitzschia sp., Chroococcus sp., Oscillatoria spp. and Ulothrix sp. Species diversity and richness were low, with significant evenness. As for the zooplankton, 18 species were identified, distributed in the Classes Eurotatoria, Copepoda, Branchiopoda, Tubulinea and Ostracoda. As bioindicator species: Brachionus calyciflorus, Filinia longiseta, Moina sp., Hexarthra sp. and Polyarthra sp. Diversity was medium, richness was low and evenness was significant. Microbiological analyzes showed the presence of E. coli. Overall, the waters of the Cocó River estuary were classified as Class 3 brackish and eutrophic.
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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.
9

Marin, I. N. "The invaders as natural biondicators using the example invasive amphipod Gmelinoides fasciatus (Stebbing, 1899) in the Moscow River Basin: the suggestion of G. lacustris/G. fasciatus bioindication pair." Ukrainian Journal of Ecology 7, no. 4 (December 27, 2017): 457–61. http://dx.doi.org/10.15421/2017_142.

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The article presents data on the study of the diversity of crustacean communities in the Moscow-river basin. Two most common are two species of amphipods, invasive species Gmelinodes fasciatus and the native species Gammarus lacustris, were detected and studies during the study. However, the number of one of the most important bioindicator species of crustaceans, Asellus aquaticus found in our samples is insufficient for quantitative conclusions. At the same time, population of G. fasciatus can be characterized as stable at all studied stations and the species can be used as bioindicator of the natural condition of the river flowing within the Moscow City. The species seems to be significantly less sensitive to environment conditions and especially anthropogenic pollution than the native amphipod species G. lacustris and can successfully replace A. aquaticus as bioindicator species in the area where the latter species is absent. Thus, a new bioindicator pair Gammarus lacustris / Gmelinoides fasciatus is suggested for using in estimation water pollution In European part of the Russian Federation and adjacent areas.
10

Owen, Lucy, Caroline Cayrou, Georgina Page, Martin Grootveld, and Katie Laird. "Development of a Standardised International Protocol for Evaluation of the Disinfection Efficacy of Healthcare Laundry Wash Processes." Applied Microbiology 4, no. 1 (January 18, 2024): 194–214. http://dx.doi.org/10.3390/applmicrobiol4010014.

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This research aims to develop a standardised protocol for monitoring the disinfection efficacy of healthcare laundry processes in view of numerous differential methodologies currently being employed within the healthcare laundry sector, including agitation and surface sampling for post-laundering decontamination assessment and swatch and bioindicator testing for in-wash-process efficacy. Enterococcus faecium as an indicator species within industrial wash systems is preferable due to its high thermal and disinfectant tolerance. Methods for measuring laundry disinfection were compared; commercially available E. faecium bioindicators and contaminated cotton swatches (loose, in cloth bags or within nylon membranes) were laundered industrially at ambient temperature and microbial recovery determined. E. faecium was lost from cotton during laundering but retained by the bioindicator membrane, which allows disinfection efficacy to be measured without loss of microorganisms from the test swatch. Commercially available bioindicators were only permeable to disinfectants and detergents at ≥60 °C. Subsequently, polyethersulphone membranes for enclosing contaminated swatches were developed for low-temperature laundering, with permeability to industrial laundry chemistries at below ≤60 °C. This study demonstrates that bioindicators are the recommended methodology for laundry disinfection validation. The use of a universal healthcare laundry disinfection methodology will lead to standardised microbiological testing across the industry and improvements in infection control.
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Journal articles Dissertations / Theses

Dissertations / Theses on the topic "Bioindicator species":

1

Samuelsson, Louise. "Natural value assessments – can they predict the species richness of red listed and bioindicator fungi in Fennoscandian coniferous forests?" Thesis, Linnéuniversitetet, Institutionen för biologi och miljö (BOM), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-64923.

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The thesis aims to examine how well two standardised methods in nature conservation, namely natural value assessment and key biotope inventory, perform in terms of recognising an area with a high amount of red listed and bioindicator fungi. The two methods are compared to see if any method is superior to find areas with high presence of red listed and bioindicator fungi and if a larger area automatically means a larger number of species. A natural value assessment inventory is conducted on study sites with a performed key biotope inventory, with an addition of an inventory on fungi. Statistical tests are completed to give information about occurring correlations. The results display that the key biotope inventory and the natural value assessment do not differ in their evaluations of an area. Analysis also shows that there is no relationship between the forest sites area and the assessment performed by the natural value assessment. However, if the assessment is performed by the key biotope inventory there exist a relationship with the forest sites area. Further on, there is no correlation between the area and its number of species. The tests also indicate that neither of the methods predict presence or the number of red listed and bioindicator species in a forest. Based on the results, the presence of bioindicator and red listed species alone are not good indicators of forest nature value. In order to give more credible answers to these questions, more studies with increased number of replicates should be conducted.
Avhandlingen syftar till att undersöka hur bra två standardmetoder inom naturvården (Skogsbiologernas naturvärdesbedömning och Nyckelbiotopsinventering) är på att upptäcka ett områdes förekomst av rödlistade svampar och signalarter. Metoderna jämförs för att upptäcka om någon metod är överlägsen den andra angående att finna områden med stor förekomst av rödlistade svampar och signalarter samt om ett större område automatiskt innebär fler arter. Detta undersöks genom att Skogsbiologernas naturvärdesbedömning utförs på områden som redan inventerats utifrån en Nyckelbiotopsinventering med tillägg av en svampinventering. Statistiska analyser genomförs därefter för att ge svar om förekommande samband. Analyser visar att Nyckelbiotopsinventeringen och Skogsbiologernas naturvärdesbedömning inte skiljer sig angående bedömningen av skogsområden. Utförda statistiska testerna tyder även på att det inte förekommer något samband mellan bedömda områdens areal och dess bedömning enligt Skogsbiologernas bedömning, däremot finns det ett samband mellan områdenas areal och Nyckelbiotopsinventeringens bedömning. Det förekommer dock inget art-area samband. Utförda tester indikerar även att ingen av metoderna kan förutsäga mängden rödlistade svampar samt signalarter i ett skogsområde. Baserat på detta resultat ger förekomsten av signalarter samt rödlistade svamparter ingen bra indikation på en skogs naturvärde. För att ge mer trovärdiga svar på dessa frågor krävs mer studier med en ökad mängd replikat.
2

Sweatman, Jennifer L. "Gammaridean Amphipods as Bioindicators in Subtropical Seagrass Ecosystems." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/2603.

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Anthropogenic disturbances are ubiquitous in coastal marine ecosystems. As such, more intensive monitoring efforts are necessary to conserve these valuable habitats. Bioindicators, organisms that predictably respond to changes in environmental variables, may be utilized in monitoring efforts to assess ecosystem functioning. To incorporate organisms into monitoring programs as bioindicators managers need to first understand the difference between the natural phenology of the focal organisms and their responses to different forms of anthropogenic disturbance. To determine if gammaridean amphipods could be used as indicators of changes in environmental quality in sub-tropical seagrass ecosystems, I conducted spatial and temporal surveys of amphipod communities in south Florida. Amphipod community structure varied significantly across sites and seasons. Variation in community structure was largely driven by macrophyte biomass, food availability, seasonally variable factors (epiphyte abundance, dissolved oxygen, salinity, and temperature), water-column nitrogen concentration, and factors related to freshwater input, including low Thalassia testudinum and high Halodule wrightii densities, and salinity. Amphipods are also susceptible to mechanical damage in seagrass habitats and could be used as indicators of ecological functioning of a region. A major source of mechanical damage in seagrass ecosystems is caused by boat propellers. I simulated propeller scars in continuous seagrass beds to investigate the effects of scarring on seagrass ecosystem functioning. Seagrasses located adjacent to propeller scars experienced a shift in the limiting resource from light to phosphorus. Amphipod community structure, however, was not impacted by scarring, but amphipod density was reduced in fragmented patches. To determine if plant-herbivore interactions were impacted by propeller scarring, we removed amphipods from half of the experimental plots and measured epiphyte biomass and community composition. Top-down control on epiphyte biomass or community composition by amphipods was not affected by fragmentation, despite reduced amphipod densities. My dissertation research demonstrates that amphipods could be incorporated into existing management programs in sub-tropical seagrass ecosystems as environmental indicators. Reduced amphipod densities in fragmented seagrass beds suggests that amphipods could also be used as ecological indicators, but more research is needed to determine the extent of the impacts of fragmentation on higher trophic levels.
3

Andersson, Skog Nils. "Bats in Urban Sweden : A multiple regression analysis of bats’ relationship to urbanization." Thesis, Södertörns högskola, Miljövetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-45771.

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Human development continues to use up more physical space in the natural world, threatening the natural habitats of many organisms. To combat the loss of biodiversity science needs to explore what landscape features are important for different organisms so that we can incorporate these into the modern environment. As bats play an important role in many ecosystems and can reflect changes through trophic levels, analyzing their preferred habitats can help planners improve biological diversity of the urban habitat. Using acoustically identified bat sightings from Artportalen.se for the years 2017-2018, this paper studied the habitats of bats in Sweden. Through multiple regression analysis we examine the response in abundance and/or diversity of bats to physical and socio-cultural attributes of the urban habitat. We examined a total of 10160 bats from 18 species in 418 land cover locales and 306 demographical statistical areas with varying degrees of urbanization. Our results indicate that bat abundance and diversity decrease significantly with higher urbanization while deciduous forests are the most important land cover type for all bats. The results also indicate that wealthier areas have less abundance and diversity even when factoring in population density. Species specific analysis suggested that bat species who are better adapted at foraging in open vegetated landscapes and over water were less susceptible to the negative impacts of the urban habitat. We conclude that diverse habitats with a mixture of open vegetated areas, watercourses and broadleaf forests are the most important land features for a diverse bat fauna along with high connectivity via tree cover and linear landscape elements. If urban planning could incorporate these features into the urban habitat, some of the negative impacts of urbanization could be prevented.
4

Pannacciulli, Federica Gabriella. "Population ecology and genetics of European species of intertidal barnacles." Thesis, University of Liverpool, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295815.

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McKinnell, Stephen Arthur. "The use of non-biting midge species Chironomus riparius Meigen (Diptera: Chironomidae) as a toxicity test species with particular reference to surfactants." Thesis, Liverpool John Moores University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261342.

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Auclerc, Apolline. "Impact d'amendements calco-magnésiens sur la diversité des macroinvertébrés de sols forestiers et sur certains processus fonctionnels associés. Cas du massif vosgien (nord-est, France)." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0056/document.

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Le recours à des épandages d'amendements calco-magnésiens dans les forêts acidifiées peut représenter une alternative intéressante pour corriger l'acidification des sols et la perte d'éléments nutritifs engendrés par des décennies de dépôts atmosphériques acides. Dans ce contexte, les objectifs de cette thèse sont d'évaluer les effets d'amendements calco-magnésiens sur (i) la diversité taxonomique et la structure des communautés des macroinvertébrés de sol forestier et sur (ii) deux processus fonctionnels associés notamment à l'activité des vers de terre, tels que la structuration du sol et l'évolution des humus. Au cours de nos travaux, trois sites localisés dans les Vosges (nord-est, France) ont été étudiés : deux massifs forestiers (sur grès et granite) en moyenne montagne, ayant fait l'objet d'amendements aériens en 2003 et la forêt domaniale de Humont située dans les collines sous-vosgiennes, où des amendements en 1991 et 2008 ont été réalisés. Les résultats montrent que 4 ans après amendement sur les bassins versants en moyenne montagne, l'abondance totale de la communauté de macrofaune a diminué, alors que les richesses spécifiques sont similaires. Cependant, la composition des communautés diffère avec moins de 50 % d'espèces communes aux sites amendés et témoins. Une diminution de l'abondance des prédateurs a également été observée alors que la plupart des détritivores ont été favorisés par l'amendement. Les études in vitro montrent également son effet positif sur les activités de structuration du sol par les vers de terre (production de turricules et construction de galeries). En forêt de Humont, les amendements ont eu un effet majeur à moyen terme (4 ans) et à long terme (20 ans) sur la population d'Aporrectodea velox, espèce endémique des Vosges. De part sa biomasse importante, cette augmentation de densité favorise l'amélioration des caractéristiques physico-chimiques du sol forestier tels que la structuration des sols et la morphologie des humus
The use of liming (Ca-Mg) on acidified forest can be interesting to counteract soil acidification and loss of nutrients caused by decades of acid atmospheric deposition. In this context, the aims of this work were to assess liming effect on (i) taxonomical diversity and community structure of soil macro-invertebrates and on (ii) two associated functional processes related to earthworms: soil structuration and humus evolution. The PhD project was realised in three sites from the Vosges mountains (North-eastern, France): two forest mountain catchments (one lying on sandstone and the other on granite) limed in 2003 and the public hill forest of Humont at a lower altitude limed in 1991 and 2008. Results showed that 4 years after liming in mountain forest, the total abundance of macro-invertebrates decreased, while the species richness were similar. However, the community structure strongly differed, and less than 50% of the species were common to limed and control sites. Moreover, 43 species appeared to be indicators of liming. Predator taxa abundance decreased whereas the detritivorous were favoured by lime addition. The in vitro experiments showed a positive effect of liming on soil structuration by earthworm activities (cast production and burrowing activities). In the Humont forest, liming at medium-term (4 years) and long term (20 years) have an important effect on the Aporrectodea velox population, an endemic vosgian species. Related to its high biomass, this increase strongly improved soil physicochemical parameters such as soil structure and humus morphology
7

Thibault, Margot. "Composition, abundance, origin and distribution of plastic pollution accumulated in the Southern Indian Ocean gyre." Electronic Thesis or Diss., La Réunion, 2024. https://elgebar.univ-reunion.fr/login?url=http://thesesenligne.univ.run/24_01_M_THIBAULT.pdf.

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La plupart des déchets plastiques mal gérés pénètrent dans l'environnement marin. Une fois dans les océans, ces plastiques dérivent jusqu'à atteindre des zones de convergence subtropicales, où ils s'accumulent pour former des « Garbage Patch ». Cinq de ces zones ont été découvertes,dont l’une dans le sud de l'océan Indien. Cette dernière a fait l'objet de peu d'études d'observation en surface, et plusieurs modèles de dispersion indiquent une localisation différente, la plaçant soit à l’ouest ou à l’est du bassin. Supposée être la deuxième « Garbage Patch » la plus polluée après celle du Pacifique Nord, il est crucial de l'identifier correctement pour intervenir efficacement. C'est dans ce contexte que s'inscrit le projet doctoral, visant à déterminer la composition, la concentration et l'origine des débris plastiques accumulés dans le sud-ouest de l'océan Indien. Depuis le début du projet, 19 campagnes océanographiques ont été déployées pour effectuer des suivis visuels des macrodéchets (> 2,5 cm) et collecter des microplastiques (500 μm – 5 mm). Des collectes des déchets marins (macro et méso : 5 mm – 2,5 cm) échoués sur des plages inhabitées ont également été réalisées pour évaluer la proportion qui ne reste pas en surface. De plus, une étude à long terme de cette pollution plastique a été entreprise en recherchant des espèces bio-indicatrices de la pollution dans la région. Toutes les observations ont été comparées ou complétées par des modèles de dispersion de particules dans l'océan Indien. Sur l'ensemble des déchets marins collectés ou observés, 95 % étaient constitués de plastiques. Parmi les plastiques, la sous-catégorie prédominante était celle des plastiques durs déjà fragmentés, retrouvés en surface de l'océan, échoués sur des îles inhabitées et ingérés par les espèces bio-indicatrices. La composition principale de ces polymères était le polyéthylène et le polypropylène, et elle ne différait pas entre la surface de l'océan et les plages. Un gradient de concentration de microplastiques a également été identifié, allant de 10^3 items.km^-2 à 40°E à 10^5 items.km^-2 à 65°E sur les latitudes 30/33°S. Ce gradient a été confirmé par les modèles de dispersion, bien que sous-estimé par ces derniers. Certains macroplastiques échoués sur des îles venaient d'emballages alimentaires d'Asie du Sud-Est. Afin de poursuivre l'étude de la pollution plastique dans la région, trois espèces ont été identifiées répondant aux critères de sélection : les tortues caouannes (Caretta caretta), les pétrels de Barau (Pterodroma baraui) et les puffins tropicaux (Puffinus baillonni). Pour les futures études, il serait intéressant d'accroître les collectes dans la partie centrale et orientale du bassin de l'Océan Indien à différentes saisons, d'étudier également l'impact de ces déchets plastiques sur les écosystèmes associés et d’établir des solutions de gestions adaptées
The majority of mismanaged plastic waste enters the marine environment. Once in the oceans, these plastics drift until reaching subtropical convergence zones, where they accumulate to form “Garbage Patches”. Five zones have been discovered, including one in the southern Indian Ocean. This latter patch has undergone limited surface observation studies, and several predicted models indicate a different location, placing it either west or east of the basin. Supposedly the second most polluted “Garbage Patch” after the North Pacific, it is crucial to identify it for effective intervention accurately. Within this context, the doctoral project aimed to determine the composition, concentration, and origin of plastic debris accumulated in the Southwest Indian Ocean. Since the project's inception, 19 oceanographic campaigns have been conducted to visually monitor macro-debris (> 2.5 cm) and collect microplastics by manta trawl deployment (500 μm – 5 mm). Surveys of marine debris (macro-meso (5 mm – 2.5 cm) beached on uninhabited, remote islands have also been carried out to assess the concentration that does not remain on the surface. Furthermore, a long-term study of plastic pollution was initiated by identifying bio-indicator species in the region. All observations have been compared or complemented with plastic dispersion predictive models in the Indian Ocean. Of all the marine debris collected or observed, 95% consisted of plastics. Among plastics, the predominant subcategory was pre-existing fragmented hard plastics found on the ocean surface, beached on uninhabited islands, and ingested by bio-indicator species. The primary composition of these polymers was polyethylene and polypropylene, and it did not differ between the ocean surface and beaches. A concentration gradient of microplastics was also identified, ranging from 10^3 items.km^-2 at 40°E to 10^5 items.km^-2 at 65°E on latitudes 30/33°S. This gradient has been confirmed by plastic dispersion predicted models, although they tend to underestimate it. In addition, some of the macroplastics stranded on the islands originated mainly from Southeast Asian food packaging. Three species have been identified for long-term monitoring of plastic pollution in the region: loggerhead turtles (Caretta caretta), Barau's petrels (Pterodroma baraui), and tropical shearwaters (Puffinus baillonni). Future studies should include increasing sampling in the central and eastern parts of the Indian Ocean basin during different seasons, studying the impact of plastic debris on associated ecosystems, and developing tailored management solutions
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Gottardini, Elena. "Risposte morfologiche, fisiologiche e geniche all’ozono della specie arbustiva Viburnum lantana L." Doctoral thesis, country:IT, 2012. http://hdl.handle.net/10449/22868.

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Because its oxidative power, tropospheric ozone is considered, at the large scale, the most harmful pollutant to vegetation. The exceedances of critical levels set to protect vegetation are quite high and widespread, so that large parts of crops and forests in Europe are exposed to potentially harmful levels of ozone. The impact of ozone on vegetation is the result of multiple factors such as the concentration in the atmosphere, the stomatal uptake - which depends on environmental and physiological factors -, and the detoxification potential of plants. The complexity of these factors and their interactions can make it difficult to establish a clear relationship between ozone and plant response under field conditions. The use of plants as bioindicators may be a solution because they reflect and summarize all processes that occur between ozone exposure and the response of the plant. The aim of this research is to explore the potential of the shrub species Viburnum lantana L. as a bioindicator in situ to assess the potential effects of ozone on native vegetation. This species is known to be sensitive to ozone, has a specific response (visible foliar injuries, consisting in red stipples on the upper leaf surface ), and a wide spatial distribution. However it is not fully known if V. lantana meets all the requirements to be used as a bioindicator. In particular, the actual responsiveness to ozone of native plants and the relationship between the intensity of responses and the levels of exposure to the pollutant under field conditions remain to be evaluated. For these purposes, two field studies were carried out in the Province of Trento (North Italy) at local (1) and large scale (2). Moreover, a study under controlled conditions (3) was carried out in order to deepen the knowledge about the effects of ozone on V. lantana at biochemical, physiological and genetic level. (1) The first study was carried out in 2009 and aimed at assessing the time course of plant responses to ozone during the growing season. To this, two 1x1 km quadrates were considered. The two quadrates, located 3 km apart, were characterized by different levels of ozone. The adoption of a completely randomized experimental design ensured replication in each area and the selection of plants. Plants were monitored for the development of ozone-specific foliar symptoms, the chlorophyll content (SPAD) and the fluorescence of chlorophyll a during the entire growing season. (2) The second study was carried out in 2010 and aimed at verifying the response of V. lantana to different levels of ozone exposure. To this end, a stratified random sampling design (elevation x ozone) was adopted to select 30 1x1 km quadrates. On all quadrates, the assessment of symptomatic plants was carried out. For this second field study, the spatial domain was the entire surface of the province of Trento (6.200 km2). (3) For the study in controlled environment, 9 potted plants of V. lantana were subjected to fumigation with known concentrations of ozone (60 ppb for 45 days, 5 hours per day) (treated), while other 9 plants were maintained under the same environmental conditions with the exception of ozone (control). Plants were analyzed for the presence and development of foliar symptoms, chlorophyll content (SPAD), fluorescence of chlorophyll a, leaf content of photosynthetic pigments and carbohydrate (HPLC) and gene expression. Overall, the results of the two field studies allowed to verify (1) a temporal development of the responses of V. lantana consistent with the trend of ozone exposure; and (2) an higher frequency of symptomatic plants where ozone levels were also higher. However, the frequency of symptoms was not always proportionate to the level of ozone exposure. At the same time of the onset and spread of foliar symptoms, a decrease in the foliar chlorophyll content and in photosynthetic performance occurred. The analysis of the fluorescence transient of chlorophyll a showed an early response to ozone for the parameter ΔVI-P, that indicates the ability of the final electron acceptor to be reduced. Interestingly, when comparing similar ranges of ozone exposures, symptomatic plants were always more frequent at higher altitudes (above 700 m a.s.l.): this may suggests that they are subjected to an additional oxidative stress (e.g. due to solar radiation), and/or that environmental conditions are more favourable to ozone uptake (high relative humidity and relative lower temperature). The physiological and metabolic analysis carried out on plants treated with ozone, confirmed their reduced photosynthetic capacity and their lower content of chlorophyll, as well as a not completely effective system to protect plants against photo-inhibition. This behavior is probably the cause of the sensitivity of this species in relation to the ozone. V. lantana - whose sensitivity and specificity of response to ozone were verified also in real field conditions - seems suitable as a bioindicator in situ to qualitatively assess the potential impact of ozone, for large-scale surveys and in remote areas. Foliar symptoms on this species are also confirmed as valid response indicators of ozone, although their interpretation in terms of potential damage to vegetation always requires great caution.
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Vieira, Ricardo Jorge Almeida. "Biochemical and physiological changes on three commercial marine fish species to extreme weather events." Master's thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/22233.

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Mestrado em Biologia Marinha
The effect of climate change is an issue of major concern to the scientific community and politicians, with the register, at the past decades, of extreme climate events worldwide. A biomarker based biomonitoring program represents a promising approach, due to its usage to assess the health status of organisms with the biochemical response may be used as early-warning signal of chemical (e.g. pollutants) and environmental stress conditions. However, it is of high importance to develop further approaches, to identify standard key species and organs to diagnose and determine damages caused by severe weather events in studies in situ. This work aims to investigate biomarker responses, in situ, in the liver and at the brain of three marine fish species (Dicentrarchus labrax, Platichthys flesus and Solea solea), from the Mondego estuary (Portugal), during two distinct extreme climatic events (drought (2012) and flood (2014)) in order to determine their baseline levels and to identify the organ to be used as endpoint in ecotoxicological studies. In addition, biochemical analyzes were supplemented with physiological indices of the sampled organisms, diagnosing their physiological state and implications for the antioxidant potential. Severe climatic events had distinct modes of action affecting the physiological condition of the studied species. Biochemical experimental approach shows that the brain has a low antioxidant defense system compared to the liver, increased ROS accumulation rates, making it particularly susceptible to oxidative damage during the dry event. In the flood event, the antioxidant potential of the brain compared to the liver revealed higher difficulty in detoxification of xenobiotic compounds. According to higher oxidative sensitivity of the brain, this organ shows to be a good indicator to assess the influence of climate change in aquatic ecosystems, using the liver as a reference organ, less sensitive to the factors above mentioned, although until now the organ often used in the analysis of oxidative metabolism.
Um assunto que tem requerido especial atenção por parte da comunidade científica e de políticos é o efeito das alterações climáticas, tendo-se registado nas últimas décadas eventos climáticos extremos cada vez mais frequentes mundialmente. A biomonitorização dos sistemas aquáticos baseada em análise de biomarcadores permite avaliar o estado fisiológico dos organismos e utilizar as respostas bioquímicas como sinais de alerta precoce de condições de stress ambientais ou químicos. Porém, é fundamental desenvolver e aprofundar estas metodologias de modo a identificar espécies aquáticas standard e órgãos chave que permitam diagnosticar os impactos provocados por fenómenos climáticos em estudos in situ. O presente trabalho tem como objectivo principal determinar as respostas in situ de biomarcadores analisados no fígado e no cérebro de três espécies de peixes marinhos (Dicentrarchus labrax, Platichthys flesus e Solea solea), recolhidos no estuário do Mondego (Portugal), em dois anos distintos, e sob a influência de eventos climáticos extemos (seca (2012), e inundação (2014)), de modo a determinar os níveis basais e identificar o órgão a ser usado como indicador em estudos ecotoxicológicos. As análises bioquímicas foram complementadas com índices fisiológicos dos organismos capturados, permitindo determinar o estado fisiológico dos organismos e implicações no sistema de defesa antioxidante. Os eventos climáticos extremos tiveram distintos modos de acção tendo-se registado no ano de seca a interrupção na dinâmica dos condutores ambientais, o que afectou a condição fisiológica das espécies estudadas. A análise bioquímica indica que o cérebro tem um sistema de defesa antioxidante baixo em comparação com o fígado, maiores taxas de acumulação de ROS, tornando-o particularmente susceptível ao dano oxidativo no ano de seca. O potencial antioxidante do cérebro comparado com o do fígado no ano onde se registaram inundações revelou maior dificuldade deste órgão na desintoxicação de compostos xenobióticos. De acordo com a maior sensibilidade oxidativa do cérebro, este órgão mostra ser um bom indicador na avaliação dos impactos das alterações climáticas nos ecossistemas aquáticos, utilizando o fígado como órgão de referência, menos sensível aos factores acima mencionados, no entanto, até ao momento, o órgão preferencial na análise do metabolismo oxidativo.
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De, la Rey Pieter Arno. "Evaluation of the applicability of diatom based indices as bioindicators of water quality in South African rivers / Pieter Arno de la Rey." Thesis, North-West University, 2008. http://hdl.handle.net/10394/3690.

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Diatoms have been proven to be reliable indicators of water quality in many countries of the world particularly Europe. The potential use of diatoms as indicators of water quality in South Africa was tested in the studies in this document. This study evaluates the potential use of diatom based indices by testing it against a macroinvertebrate index (SASS 5) and evaluating the variation in the index scores of the two indices due to changes in chemical water quality and habitat. It was concluded that the diatom monitoring system performs well as bioindicator of water quality. It was also concluded that it should be used as a complementary system to the much used SASS 5 invertebrate index. This conclusion was made due to the fact that diatoms react more directly to changes in water quality than macroinvertebrates (SASS 5), and macroinvertebrates react more readily to changes in habitat than diatoms. A further part of the study was to assess whether aut-ecological or diversity based diatom indices performed best in South African conditions. This study found that the ecological indices were more sensitive to changes in water quality than the diversity indices. The diatom based indices that performed best as water quality indicators were the specific pollution sensitivity index (SPI) and the biological diatom index (BDI). A standard method for the sampling, preparation and enumeration for diatoms to be used for index score generation is also suggested to ensure the comparability of diatom based index data to facilitate use of such bio monitoring data for management purposes. The main focus of the study was to eliminate some of the obstacles for the use of diatoms as bio indicators of water quality in South Africa. It is believe that this aim has been accomplished in the study.
Thesis (Ph.D. (Environmental Science))--North-West University, Potchefstroom Campus, 2008.
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Books on the topic "Bioindicator species":

1

Gagne, Tammy. Dragonflies Matter (Bioindicator Species). Core Library, 2016.

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Andersen, Alan N. Ants of Northern Australia. CSIRO Publishing, 2000. http://dx.doi.org/10.1071/9780643100633.

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Ants are one of the most important faunal groups in Australia and are widely used as bioindicators in land monitoring and assessment programs. The Ants of Northern Australia will help in the identification of the 1500 or more ant species occurring in monsoonal Australia, an area which encompasses most of the northern third of the continent. Until now, no book has described the northern Australian ant fauna below genus level. Such a treatment is required to support and promote the numerous ecological studies involving ants, especially in the context of their use as bioindicators. The Ants of Northern Australia features original analyses of genera at the species-group level, and so has relevance throughout Australia. It treats all major species that have been described, as well as numerous others that remain undescribed.
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Lovrich, Gustavo, and Martin Thiel, eds. Fisheries and Aquaculture. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190865627.001.0001.

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This volume examines fisheries and aquaculture. The chapters in this volume synthesize the current understanding of the diverse topics in fisheries and aquaculture. The first part of the book explores worldwide crustacean fisheries and concludes with two chapters on harvested crustaceans that are usually not within the focus of the mainstream fisheries research, possibly because they are caught by local fishing communities in small-scale operations and sold locally as subsistence activity. In the second part of the book, the authors explore the variety of cultured crustacean species. The chapters of the third part of the volume focus on important challenges and opportunities, including diseases and parasitism, the use of crustaceans as bioindicators, and their role in biotechnology. Collectively, these 19 chapters provide a thorough exposition of the present knowledge across the major themes in crustacean fisheries and aquaculture.

Book chapters on the topic "Bioindicator species":

1

Kumari, Preeti, and Subodh Kumar Maiti. "Indian Fish as Bioindicator Species." In Agriculture, Livestock Production and Aquaculture, 305–32. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-93258-9_16.

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Edwards, C. A., S. Subler, S. K. Chen, and D. M. Bogomolov. "Essential Criteria for Selecting Bioindicator Species, Processes, or Systems to Assess the Environmental Impact of Chemicals on Soil Ecosystems." In Bioindicator Systems for Soil Pollution, 67–84. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1752-1_7.

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Jacob, Daniel Etim, Imaobong Ufot Nеlson, Simon Idoko Okweche, Pius Agaji Oko, and Sylvester Chibueze Izah. "Suitability of Mammals Indigenous to the Global South as Bioindicator Species for Assessing Environmental Health." In Biomonitoring of Pollutants in the Global South, 451–84. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1658-6_13.

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Verreault, J., G. W. Gabrielsen, and J. O. Bustnes. "The Svalbard Glaucous Gull as Bioindicator Species in the European Arctic: Insight from 35 Years of Contaminants Research." In Reviews of Environmental Contamination and Toxicology, 77–116. New York, NY: Springer New York, 2009. http://dx.doi.org/10.1007/978-1-4419-5623-1_2.

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Nespolo, Roberto F., Pablo Sáenz-Agudelo, Carlos Mejías, Julian F. Quintero-Galvis, Isabella Peña, Pablo Sabat, Juan Carlos Sánchez-Hernández, and Yamila Gurovich. "Chapter 5. The Physiological Ecology of the Enigmatic Colocolo Opossum, the Monito del Monte (genus Dromiciops), and Its Role as a Bioindicator of the Broadleaf Biome." In Marsupial and Placental Mammal Species in Environmental Risk Assessment Strategies, 81–111. Cambridge: Royal Society of Chemistry, 2022. http://dx.doi.org/10.1039/9781839163470-00081.

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Brodeur, J. C., and J. Vera Candioti. "Chapter 8. Impacts of Agriculture and Pesticides on Amphibian Terrestrial Life Stages: Potential Biomonitor/Bioindicator Species for the Pampa Region of Argentina." In Issues in Toxicology, 163–94. Cambridge: Royal Society of Chemistry, 2017. http://dx.doi.org/10.1039/9781788010573-00163.

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Murin, G., and K. Micieta. "Wild Plant Species in Bioindication of Polluted Environment." In Environmental Stress: Indication, Mitigation and Eco-conservation, 285–98. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-015-9532-2_25.

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Vasiliu-Oromulu, Liliana, Viorica Honciuc, Sanda Maican, Cristina Munteanu, Minodora Stănescu, Cristina Fiera, Mihaela Ion, and Dorina Purice. "Are Certain Invertebrate Species Sensitive Bioindicators of the Air Pollution?" In Survival and Sustainability, 1023–35. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-95991-5_97.

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Höss, Sebastian, and Walter Traunspurger. "Freshwater nematodes as bioindicators in field studies - the NemaSPEAR[%]-index." In Ecology of freshwater nematodes, 323–40. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789243635.0011.

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Abstract This chapter, after a general introduction to quality assessments of freshwater habitats, reviews the use of freshwater nematodes as in situ bioindicators, including in monitoring the ecological quality of freshwater habitats. By drawing on studies of nematode communities in unpolluted and polluted habitats as examples, it highlights both the different methods used to assess the quality of freshwater ecosystems and their applications. A focus of the chapter is the development of a new index that uses freshwater nematodes to assess chemically induced changes in the ecological status of freshwater habitats, the NemaSPEAR[%]-index (Nematode SPEcies At Risk).
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Schladot, J. D., and F. W. Backhaus. "The Common Mussel (Mytilus edulis) as Marine Bioindicator for the Environmental Specimen Bank of the Federal Republic of Germany." In Specimen Banking, 75–87. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-77197-2_9.

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Conference papers on the topic "Bioindicator species":

1

Sergeeva, T. P., O. V. Lozinskaya, E. G. Smirnova, and E. T. Titova. "EXPRESSION OF ANTHROPOGENIC PRESSURE ON ECOSYSTEMS BY MORPHOMETRIC, PHENETIC AND CYTOLOGICAL INDICATORS OF BIOINDICATOR SPECIES." In SAKHAROV READINGS 2022: ENVIRONMENTAL PROBLEMS OF THE XXI CENTURY. International Sakharov Environmental Institute of Belarusian State University, 2022. http://dx.doi.org/10.46646/sakh-2022-2-173-177.

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A comparative analysis of the chemical composition of the soils of three territorial clusters, as well as the features of cytological characteristics and population structure of bioindicator species is given. Indicator species among Acrididae have been identified. Test criteria have been determined in bioindicator species: cytogenetic parameters in phyto indicators (Alium cepa) and morpho-phenetic signs in zoo indicators - locusts (Acrididae).
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Kuznetsova, Tatiana, and Sergey Kholodkevich. "Comparative assessment of surface water quality through evaluation of physiological state of bioindicator species: Searching a new biomarkers." In 2015 4th Mediterranean Conference on Embedded Computing (MECO). IEEE, 2015. http://dx.doi.org/10.1109/meco.2015.7181938.

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Žvynakytė, Vita, Janina Pažusienė, Justas Dainys, and Milda Stankevičiūtė. "Evaluation of haematological and biochemical stress biomarkers and physiological parameters in Carassius gibelio caught in the coastal zone of the Curonian lagoon." In 27-osios jaunųjų mokslininkų konferencijos „Mokslas – Lietuvos ateitis“ teminė konferencija DARNI APLINKA. Vilniaus Gedimino Technikos Universitetas, 2024. http://dx.doi.org/10.3846/da.2024.001.

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This study aimed to assess the health status of Carassius gibelio, a comparatively tolerant fish species, in the largest coastal lagoon in Europe – the Curonian Lagoon. Haematocrit and glucose levels were evaluated as reliable biomarkers of stress responses in fish. Additionally, non-specific physiological biomarkers, including hepatosomatic index and condition factor, were utilized to assess the environmental quality of the Curonian Lagoon. Fish samples were collected from two sites: the southern part of Klaipėda port, known as Kiaulės Nugara Island, and the central part of the Curonian Lagoon near Ventė Cape. Based on the multi-biomarker responses of C. gibelio, differences were observed between the two sampling sites, but not statistically significant. Consequently, C. gibelio cannot be recommended as a suitable bioindicator of environmental pollution and is not recommended for biomonitoring surveys of the Curonian Lagoon.
4

Busko, Eu G., and E. V. Akshevskaya. "MODERN METHODS OF PHYTOINDICATION OF TECHNOGENIC POLLUTION OF NATURAL ECOSYSTEMS BY HEAVY METALS." In SAKHAROV READINGS 2022: ENVIRONMENTAL PROBLEMS OF THE XXI CENTURY. International Sakharov Environmental Institute of Belarusian State University, 2022. http://dx.doi.org/10.46646/sakh-2022-2-165-169.

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The method of bioindication of ecosystems by heavy metals is presented. The ecological significance of this method in comparison with other types of bioindication is confirmed by a number of advantages. The mechanism of accumulation of heavy metals in mosses is emphasized. The evaluation of modern laboratory methods for the determination of heavy metals in vegetation was carried out. The method of determination of heavy metals (copper, cobalt, lead) in mossy is presented. On the basis of modern research, the importance of both the selection of mosslike species and the described methodology for the determination of heavy metals in the atmosphere is shown, which confirms the relevance of this topic.
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Milošković, Aleksandra, Nataša Kojadinović, Milena Radenković, Simona Đuretanović, Tijana Veličković, Marijana Nikolić, and Vladica Simić. "POTENTIALLY TOXIC ELEMENTS IN LOWLAND GREAT MORAVA RIVER – BIOINDICATION WITH BLEAK (ALBURNUS ALBURNUS)." In 1st INTERNATIONAL Conference on Chemo and BioInformatics. Institute for Information Technologies, University of Kragujevac, 2021. http://dx.doi.org/10.46793/iccbi21.097m.

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The utilization of fish bioindicators has become of crucial importance for ecosystem contamination assessment. Bleak (Alburnus alburnus) is a widely distributed epipelagic fish species characterized as very active with fast metabolism which can lead to a high accumulation of pollutants in tissues. Bleak is easy to sample, identify in the field by morphological characteristics, and easy to work within the laboratory. This study deals with the bleak sensitivity in detecting the pressure of the potentially toxic elements (PTEs) in the large lowland Great Morava River. The Al, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, Sn, and Zn were estimated in whole body composite (wbc) of bleak. The study was conducted at Great Morava River, near the city of Paraćin in Serbia. The highest concentrations of essential elements Zn and Fe were detected. The most toxic elements As and Hg were below detection limits. The metal pollution index (MPI) was 0.39. In large lowland rivers, point sources of pollution such as municipal wastewaters of smaller settlements usually have only local impact due to high dilution by the main watercourse. Since bleak is a site-specific species, results in this study indicated that this stretch of the Great Morava River is slightly affected by PTEs. None of the elements above the maximum permitted concentrations (MPC) in fish meat for use in the human diet, prescribed by the Official Gazette and European Commission Regulation, were not recorded.
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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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Simon, Ondrej P., Vojtech Barak, Vera Kladivova, Vaclava Jahelkova, Linda Staponites, Michal Bily, and Karel Douda. "Verifying the safe level of visitors’ pressure in aquatic protected areas: surrogate signal species, dummy individuals and bioindication." In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/108667.

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Cerevkova, Andrea, Marek Renco, and Lenka Bobulska. "DIVERSITY OF SOIL NEMATODES IN THE TREATENED ECOSYSTEMS OF PONICKA CAVE." In 23rd SGEM International Multidisciplinary Scientific GeoConference 2023. STEF92 Technology, 2023. http://dx.doi.org/10.5593/sgem2023v/6.2/s29.91.

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Abstract:
Ponicka Cave, situated in central Slovakia, is a natural wonder, known for its stunning stalagmites, stalactites, and underground lakes. This unique cave system has a hydrological connection to the Earth's surface, representing a very vulnerable habitat. Long-lasting intensive livestock grazing in the aquifer area of Ponicka cave and insufficiently insulated manure dump were the main reasons for the contamination of this cave. Soil nematodes are the most abundant multicellular organisms on Earth with respect to both species� richness and abundance. They are ubiquitous invertebrates in the soil that include a variety of feeding types, and they perform key functions in soil food webs. They are considered as one of the best soils bioindicators. Although the mesofauna of caves in Slovakia is relatively well described, information about soil nematodes are missing. In this study, we present the first data on the fauna of free-living and plant-parasitic nematode species from soil taken in the Karst region (karst spring, ponor, sink hole) and manure. Totally we identified 54 nematode species across 43 genera, 28 families, and 9 orders. The highest number of identified nematode species (44) was observed in Ponor, while 33 species were observed in both the karst springs and in a sinkhole and only 8 species were found in manure. Bacterivores were the dominant trophic group in all sites. Differences in nematode species composition in sites around Ponicka Cave, showing the differences in the environmental conditions nearby and site characteristic. This study emphasizes how important it is to know, understand and protect the soil biota that plays an important role in keeping the cave and the surrounding environment healthy.
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Astanin, S., I. Balbekova, and Irina Svistova. "SOIL BIOINDICATION PARAMETERS FOR ASSESSING THE URBAN LOAD ON DIFFERENT TYPES OF RECREATION IN VORONEZH." In FORESTRY-BIOLOGICAL FOUNDATIONS OF SUSTAINABILITY OF NATURAL AND ARTIFICIAL PHYTOCOENOSES. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2024. http://dx.doi.org/10.58168/fbfsnap2024_6-11.

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The composition and structure of complexes of mycelial microorganisms have been studied to assess violations of the soil microbiota in recreational areas of the Central district of Voronezh. The species composition of micromycetes and actinomycetes typical of the regional background is preserved in suburban forest park areas, and redistribution by degree of dominance was observed. The most disturbed microbial communities are the soils of recreational areas in the city center near highways, intersections and transport interchanges, regardless of their conservation status. Toxigenic and allergenic types of micromycetes appear in the rank of dominants, which poses a sanitary and hygienic danger to the urban population. In the most polluted soils, brightly pigmented sections of actinomycetes accumulate. The types of indicators for urban load have been identified. which can be used for mycological monitoring of recreational areas of the city.
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Mazina, Svetlana. "BIOINDICATION OF ANTROPOGENIC LOAD IN CAVES KINDERLINSKAYA AND OKTYABRSKAYA (REPUBLIC OF BASHKORTOSTAN, RUSSIA): COMPARATIVE ANALYSIS OF ROCKS AND SEDIMENTS MICROMYCETES SPECIES� COMPOSITION." In 18th International Multidisciplinary Scientific GeoConference SGEM2018. Stef92 Technology, 2018. http://dx.doi.org/10.5593/sgem2018/5.2/s20.021.

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Reports on the topic "Bioindicator species":

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Baliarsingh, Snigdha, Bharat Bhusan Patnaik, and Shailesh Saurabh. Lamellidens marginalis: an evaluation of its potential as a bioindicator species of metal pollution. Peeref, March 2023. http://dx.doi.org/10.54985/peeref.2303p7571467.

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Dodd, Hope, David Peitz, Gareth Rowell, Janice Hinsey, David Bowles, Lloyd Morrison, Michael DeBacker, Jennifer Haack-Gaynor, and Jefrey Williams. Protocol for Monitoring Fish Communities in Small Streams in the Heartland Inventory and Monitoring Network. National Park Service, April 2021. http://dx.doi.org/10.36967/nrr-2284726.

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Fish communities are an important component of aquatic systems and are good bioindicators of ecosystem health. Land use changes in the Midwest have caused sedimentation, erosion, and nutrient loading that degrades and fragments habitat and impairs water quality. Because most small wadeable streams in the Heartland Inventory and Monitoring Network (HTLN) have a relatively small area of their watersheds located within park boundaries, these streams are at risk of degradation due to adjacent land use practices and other anthropogenic disturbances. Shifts in the physical and chemical properties of aquatic systems have a dramatic effect on the biotic community. The federally endangered Topeka shiner (Notropis topeka) and other native fishes have declined in population size due to habitat degradation and fragmentation in Midwest streams. By protecting portions of streams on publicly owned lands, national parks may offer refuges for threatened or endangered species and species of conservation concern, as well as other native species. This protocol describes the background, history, justification, methodology, data analysis and data management for long-term fish community monitoring of wadeable streams within nine HTLN parks: Effigy Mounds National Monument (EFMO), George Washington Carver National Monument (GWCA), Herbert Hoover National Historic Site (HEHO), Homestead National Monument of America (HOME), Hot Springs National Park (HOSP), Pea Ridge National Military Park (PERI), Pipestone National Monument (PIPE), Tallgrass Prairie National Preserve (TAPR), and Wilson's Creek national Battlefield (WICR). The objectives of this protocol are to determine the status and long-term trends in fish richness, diversity, abundance, and community composition in small wadeable streams within these nine parks and correlate the long-term community data to overall water quality and habitat condition (DeBacker et al. 2005).

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