Bibliografías temáticas / Freshwater animals

Literatura académica sobre el tema "Freshwater animals"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 31 de julio de 2024

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Artículos de revistas sobre el tema "Freshwater animals"

Streit, Bruno, Thomas St�dler, Klaus Schwenk, Andrea Ender, Kerstin Kuhn y Bernd Schierwater. "Natural Hybridization in Freshwater Animals". Naturwissenschaften 81, n.º 2 (1 de febrero de 1994): 65–73. http://dx.doi.org/10.1007/s001140050031.

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Griffith, Michael B., James M. Lazorchak y Herman Haring. "Uptake of Sulfate from Ambient Water by Freshwater Animals". Water 12, n.º 5 (23 de mayo de 2020): 1496. http://dx.doi.org/10.3390/w12051496.

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To better understand how the sulfate (SO42−) anion may contribute to the adverse effects associated with elevated ionic strength or salinity in freshwaters, we measured the uptake and efflux of SO42− in four freshwater species: the fathead minnow (Pimephales promelas, Teleostei: Cyprinidae), paper pondshell (Utterbackia imbecillis, Bivalvia: Unionidae), red swamp crayfish (Procambarus clarkii, Crustacea: Cambaridae), and two-lined mayfly (Hexagenia bilineata, Insecta: Ephemeridae). Using δ(34S/32S) stable isotope ratios and the concentrations of S and SO42−, we measured the SO42− influx rate (Jin), net flux (Jnet), and efflux rate (Jout) during a 24 h exposure period. For all four species, the means of Jin for SO42− were positive, and Jin was significantly greater than 0 at both target SO42− concentrations in the fish and mollusk and at the lower SO42− concentration in the crayfish. The means of Jout and Jnet were much more variable than those for Jin, but several species by target SO42− concentration combinations for Jout and Jnet, were negative, which suggests the net excretion of SO42− by the animals. The results of our experiments suggest a greater regulation of SO42− in freshwater animals than has been previously reported.

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Vanni, Michael J. "Nutrient Cycling by Animals in Freshwater Ecosystems". Annual Review of Ecology and Systematics 33, n.º 1 (noviembre de 2002): 341–70. http://dx.doi.org/10.1146/annurev.ecolsys.33.010802.150519.

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Bartels, H., H. Schewe y I. C. Potter. "Structural changes in the apical membrane of lamprey chloride cells after acclimation to seawater". American Journal of Physiology-Cell Physiology 265, n.º 3 (1 de septiembre de 1993): C733—C739. http://dx.doi.org/10.1152/ajpcell.1993.265.3.c733.

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Freeze-fracture replicas demonstrate that the apical membrane of the chloride cells of young adult lampreys (Geotria australis) undergoes a structural change when the animal is acclimated from freshwater to seawater. Although the particles on both the P face and the E face of this membrane are randomly distributed in freshwater animals, they are usually arranged in clusters on both fracture faces in seawater-acclimated animals. Light optical diffraction analysis demonstrates that the particles forming the clusters are periodically arranged. Although comparable clusters of particles have not been recorded in other epithelial membranes that are engaged in transporting ions into a hypertonic environment, they may be involved in the final step of Cl- secretion by the chloride cells of lampreys in seawater.

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Park, Chan Jin, Dae Han Kim, Sang Ho Han y Myung Chan Gye. "Toxic Effects of Aluminium on Freshwater Animals: Review". Korean Journal of Environmental Biology 32, n.º 4 (30 de diciembre de 2014): 271–85. http://dx.doi.org/10.11626/kjeb.2014.32.4.271.

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Waghela, Trisha, Vandita Bhatt, Ammar Dariwala y Dineshkumar Saroj. "Comparative Study on Impact Assessment of Dead Fish on the Quality Parameters of Fresh and Sea Water". UTTAR PRADESH JOURNAL OF ZOOLOGY 45, n.º 15 (5 de julio de 2024): 25–34. http://dx.doi.org/10.56557/upjoz/2024/v45i154218.

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Water is vital for ecosystems, supporting biodiversity and sustaining life. Changes in water quality can affect the ecosystem’s animal inhabitants. Decomposition of fish carcasses can lead to deterioration in water quality, posing risk to aquatic animals. This investigation was aimed evaluate the impact of fish carcass on freshwater and seawater quality, by analysing physical and chemical parameters, temperature, salinity, density, pH, Total Dissolved Solids (TDS) and Dissolved Oxygen (DO). Water quality is characterised by physical, chemical, and biological attributes and could be assessed by analysing several parameters such as pH, Temperature, Salinity, DO, and TDS. It was observed that the temperature of freshwater to be 29°C and sea water to be 27°C. There was a decline in density, Dissolved Oxygen, Total Dissolved Solids and pH in both seawater and freshwater, after introducing fish carcass, over the period of three weeks. This study summarizes natural calamities, anthropogenic activities and varied pollution in aquatic environments leading to death of large numbers of aquatic animals which may cause deterioration of water quality and depletion of aquatic biota.

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Nuraini, Rini. "Identification of Freshwater Fish Types Using Linear Discriminant Analysis (LDA) Algorithm". IJICS (International Journal of Informatics and Computer Science) 6, n.º 3 (30 de noviembre de 2022): 147. http://dx.doi.org/10.30865/ijics.v6i3.5565.

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Fish as aquatic animals have several physiological mechanisms that land animals do not have. Differences in habitat cause fish to adapt to environmental conditions, for example as animals that live in water, both in fresh and marine waters. The number of species or types of freshwater fish means knowledge of the types of freshwater fish. Identification of freshwater fish images is useful for the community, because the types of freshwater fish have different nutritional content, prices and processing for each type. Likewise for cultivators, identification of freshwater fish species can be useful for providing fish handling and management because each fish has a different cultivation method. The purpose of this study was to identify freshwater fish species using the Linear Discriminant Analysis (LDA) algorithm based on color feature extraction using HSV. The LDA algorithm has the ability to reduce dimensions by dividing data into several groups by maximizing the distance between groups that are different or more. To make the identification process easier, color feature extraction with HSV can be used to extract a variety of information from the color in the image. Based on the results of the accuracy test, it produces a value of 84.5%, which is included in the good category.

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Movsesyan, Petrosyan, Nikogosyan, Vardanyan, Terenina y Voronin. "FORMATION MONITORING OF PARASITE FAUNA IN STABLED ANIMALS OR ANIMALS IN ENCLOSED GRAZING AREAS". THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL, n.º 23 (18 de abril de 2022): 321–26. http://dx.doi.org/10.31016/978-5-6046256-9-9.2022.23.321-326.

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Monitoring studies were performed on biological diversity of parasite fauna in domesticated animals at the territory of the Joint Russian-Armenian Scientific Experimental Centre, within the piedmont zone of Armenia with moderate continental climate at 900-1200 m above the sea level. The study species were large and small ruminants, rabbits and hens. All the animals except sheep were kept indoors (stalls). We found 3 trematode species, 4 cestode species and 5 nematode species based on seasonal coproovoscopic and larvoscopic examinations, as well as an incomplete helminthological dissections of 5 sheep. The infection of sheep and cattle with hematophagous parasites was also detected and the infection of hens and rabbits with helminths and protozoa was found. Oribatid mites Scheloribates sp. were isolated from the studied soil samples. We also found and studied land and freshwater molluscs, intermediate hosts of a number of important parasite species for the infection. The land molluscs were found to have naturally-acquired invasions with larval forms of Protostrongylidae and Dicrocoeliidae. In total, we found 20 helminth species, 5 ixodid ticks, 1 oribatid mite and 7 protozoa, and vectors: 2 species of freshwater molluscs and 1 species of land molluscs.

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Muniz, Ivar P. "Freshwater acidification: its effects on species and communities of freshwater microbes, plants and animals". Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences 97 (1990): 227–54. http://dx.doi.org/10.1017/s0269727000005364.

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SynopsisAcidification in geologically-sensitive areas subject to appreciable acidic deposition has affected the activities of microbes, plants and animals in poorly-buffered freshwater ecosystems in Europe and N. America. Biota can be influenced directly by changes in water quality during both short acidic episodes and longer-term sustained periods of acidification: they are affected indirectly by alterations to the balance of acid-sensitive and acid-tolerant species at different trophic levels sometimes leading to a lessening of grazing pressures. Together the chemical and biological alterations result in adverse effects on some biogeochemical processes including the increased mobilisation and leaching of biologically active elements such as mercury, copper and zinc. Many field observations have now been corroborated by field (whole-lake) and laboratory experiments.Decomposition of organic matter, attributable to microbes, has been found to be affected adversely at some locations. Conspicuously, acidification favours the prolific growth of filamentous algae particularly species ofMougeolia: it also shifts the balance of diatoms, minimising the occurrence of circumneutral species and favouring that of acidophilous and acidobiontic types. Because of their ‘resistant’ siliceous skeletons, it has been possible to trace the historical progression of acidification by examining the remains of diatoms in sediment accumulations. While their species diversity is significantly decreased, the biomass and productivity of dinoflagellates and chrysophytes are only slightly affected.Like that of phytoplankton (dinoflagellates, chrysophytes and some diatoms), the species diversity of zooplankton is significantly decreased by acidification which has variable effects on the biomass and productivity of the group as a whole: the loss of daphnids is particularly conspicuous. Of the benthic macroinvertebrates, snails, crayfish, clams and freshwater shrimps (amphipods) have been found to be acid-sensitive whereas dragonflies and water boatmen (corixids) increase, particularly where populations of predetory fish have decreased.Acidification has been responsible for the loss of fish from significant parts of Norway and Sweden: losses, partial or complete, have also been documented in geologically-sensitive areas of the U.K. and other parts of Europe, also Canada and the U.S.A. Eels seem to be the least sensitive to acidic conditions, followed by pike, trout, minnow and roach — the latter being the most sensitive. Prior to being eliminated, populations of fish become unbalanced because of recruitment failure and the mean age, and sometimes size, of the survivors increases. Accumulations of manganese and mercury have been detected in fish taken from acidified freshwaters. Short-term events (episodes) of extreme acidity and/or large concentrations of water-soluble aluminium have led to major fish kills.The development of embryonic and larval stages of amphibians, including the common frog, toad and natterjack toad, is acid-sensitive. The distribution of fish-eating birds may be influenced by the effects of acidification on the performance of their prey. That of the dipper, a riverine bird, as well as its breeding success, has been restricted where acidification has decreased the availability of its macroinvertebrate prey. Deleterious effects on fish-eating mammals of reduced supplies of prey, sometimes with accumulations of mercury and cadmium and attributable directly and indirectly to acidification, have not, as yet, been confirmed.

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Iverson, Sara J., Aaron T. Fisk, Scott G. Hinch, Joanna Mills Flemming, Steven J. Cooke y Frederick G. Whoriskey. "The Ocean Tracking Network: Advancing frontiers in aquatic science and management". Canadian Journal of Fisheries and Aquatic Sciences 76, n.º 7 (julio de 2019): 1041–51. http://dx.doi.org/10.1139/cjfas-2018-0481.

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Aquatic animals are integral to ocean and freshwater ecosystems and their resilience, are depended upon globally for food sustainability, and support coastal communities and Indigenous peoples. However, global aquatic environments are changing profoundly due to anthropogenic actions and environmental change. These changes are altering distributions, movements, and survival of aquatic animals in ways that are not well understood. The Ocean Tracking Network (OTN) is a global partnership that is filling this knowledge gap. OTN Canada, a pan-Canadian (and beyond) research network, was launched in 2010 with visionary funding by the Canadian government. In our introduction to this special issue, we briefly overview how this interdisciplinary network has used state-of-the-art technologies, infrastructure, electronic tags and sensors, and associated cutting-edge research and training programs to better understand changing marine and freshwater dynamics and their impact on ecosystems, resources, and animal ecology. These studies have provided unprecedented insights into animal ecology and resource management at a range of spatial and temporal scales and by interfacing animal movements with novel measures of environment, physiology, disease, genetics–genomics, and anthropogenic stressors.

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Tesis sobre el tema "Freshwater animals"

Ross, Jason. "An investigation of the distribution patterns of aquatic vertebrates across four sites in the upper Parramatta River catchment /". View thesis View thesis, 2000. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030429.115844/index.html.

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Thesis (M.Sc. (Hons.)) -- University of Western Sydney, 2000.
"A thesis submitted in part-fulfilment of the requirements for the degree of Master of Science (Honours)" Bibliography : leaves 131-152.

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Giles, Jacqueline. "The underwater acoustic repertoire of the long-necked, freshwater turtle Chelodina oblonga". Thesis, Giles, Jacqueline (2005) The underwater acoustic repertoire of the long-necked, freshwater turtle Chelodina oblonga. PhD thesis, Murdoch University, 2005. https://researchrepository.murdoch.edu.au/id/eprint/39/.

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The major question addressed by this project was to determine if the long-necked, freshwater turtle Chelodina oblonga, vocalise underwater and whether their vocal activity could be related to behavioural or ecological aspects of their lives. These turtles often live in wetlands where visibility is restricted due to habitat complexity or light limitation caused by factors such as tannin-staining, or turbidity. For many aquatic animals, sound is a useful means of communication over distances beyond their visual acuity. This thesis gives the first detailed account of the underwater vocal repertoire of C. oblonga. In total, over 230 days were spent in the field and more than 500 hours of tape recordings were made for this research. Initially, a number of recordings took place in three wetlands known to support turtle populations: Blue Gum Lake; Glen Brook Dam; and Lake Leschenaultia in Perth, Western Australia; in order to determine the nature of the freshwater sound field and place turtle vocalisations into the context in which they were vocalising. The wetlands differed in terms of degree of enrichment, substrate material, water depth and habitat complexity. Recordings were made over a four-week period in the last month of summer and the first week of autumn (Feb-Mar 2003). Invertebrate sweeps were also taken over a two-week period at each recording site to determine if invertebrate distributions were related to patterns of sonic activity. To determine the influence of wind on ambient noise; recordings were undertaken on winter mornings (June-August, 2003) at Blue Gum Lake and Glen Brook Dam at locations north, south, west and east for four different wind speeds - Beaufort Wind Scale (BWS) 0,1,2 and 3. There were seven distinctive calls recognised in the recordings. The frequency bandwidth most utilised by organisms was between 3 kHz up to around 14 kHz, with the exception of the 'bird-like song'; which extended from 500 Hz up to around 10 kHz. Blue Gum Lake contained a more diverse and abundant assemblage of invertebrates than Lake Leschenaultia and Glen Brook Dam. Correspondingly, a greater diversity of calls was recorded at Blue Gum Lake, as well as the presence of chorus activity, which was not heard at the two less-enriched sites. The periods of greatest diversity and abundance of macroinvertebrates was synonymous with the increased sonic activity at dusk and midnight with noise levels greatest at dusk in particular, and to a lesser extent at midnight. There was no difference in ambient noise at Blue Gum Lake or Glen Brook Dam at wind speeds of Beaufort Wind Scale 0, 1 and 2. Turtles from three populations were recorded in artificial environments: consisting of round, plastic, above-ground ponds (1.8m dia. x 0.65m depth), which were set up to recreate small wetlands. Recordings occurred from September to October, 2003 and from February to December, 2004 as well as January, 2005. Seven hatchling and five juvenile turtles (CL < 10cm) were also recorded in order to ascertain whether very young turtles vocalised. Hatchlings were recorded in a glass aquarium (35.5cm length x 20cm width x 22.0cm depth) and juveniles were placed into a below-ground outdoor pond (1m length x 0.5m width x 0.4m depth). Recordings occurred from as early as 4.30am (dawn recordings) to as late as 1.30am (evening recordings). The recordings revealed that turtles utilise an underwater acoustic communication system (calling at the water's surface was also noted but these were not recorded or a part of this research) involving a repertoire of both complex and percussive sounds with short, medium and potentially long-range propagation characteristics. Complex structures included harmonically related elements (richly or sparsely) and different rates of frequency modulation. Frequency use extended beyond the in-air auditory sensitivity known for a single species of turtle studied from the family Chelidae; with calls ranging from around 100 Hz in some of the percussive displays, to as high as 3.5 kHz in some complex calls, with 'clicks' extending beyond the 20 kHz upper limit of the recording system. However, most of C. oblonga's vocalisations had dominant frequencies below 1 kHz. Turtles were intermittent callers with an extensive vocal repertoire of seventeen (17) vocal categories - highly suggestive of complex social organisation. Vocalisations included: a) clacks; b) clicks; c) squawks; d) hoots; e) short chirps; f) high short chirps; g) medium chirps; h) long chirps; i) high calls; j) cries or wails; k) cat whines; l) grunts; m) growls; n) blow bursts; o) staccatos; p) a wild howl; and q) drum rolling. Also, two sustained 'pulse-bouts' were recorded during the breeding months, hypothesised to function as acoustic advertisement displays - possibly 'calling songs'. Hatchling turtles were not heard to vocalise within the audible range. Only a single complex vocalisation was heard produced by the juvenile turtles, with a number of percussive calls. Preliminary playback trials were conducted under free-field conditions and within an artificial environment, which consisted of a below ground rectangular tank (2.4m length x 0.8m width x 0.6m deep). A number of turtle calls recorded in the artificial ponds were selected for playback. A UW 30 speaker was used for broadcast of calls. The free-field playbacks occurred at Mabel Talbot Lake and Blue Gum Lake during the months of April and May, 2005. Playback using 14 seconds of an artificially constructed sequence from the sustained 'pulse-bout' occurred in the artificial channels. This sequence consisted of some of the first phase pulses followed by a section of the 'vibrato'. The preliminary free-field playback trials indicated that turtles had some interest in the calls being played by responding with an 'alert posture'. Turtles were shown to remain in the alert posture for a significantly longer time than when no sound was played or when white noise was played. The extensive repertoire and initial responses to the free-field playbacks indicated that sound has some biological importance for C. oblonga, although results of playbacks under artificial conditions were inconclusive.

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Giles, Jacqueline. "The underwater acoustic repertoire of the long-necked, freshwater turtle Chelodina oblonga". Giles, Jacqueline (2005) The underwater acoustic repertoire of the long-necked, freshwater turtle Chelodina oblonga. PhD thesis, Murdoch University, 2005. http://researchrepository.murdoch.edu.au/39/.

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Boomker, Jacob Diederik Frederik. "Parasites of some free-living wild animals and freshwater fish species in South Africa". Thesis, Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-12032009-194518/.

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Wishart, Marcus J. "A comparative phylogeographic approach toward defining functional units for the conservation of biodiversity in lotic ecosystems". Connect to this title online, 2002. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20031125.103610/.

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Scheuerell, Mark David. "Environmental drivers of spatial and temporal variability in lakes /". Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/5144.

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Schilling, Emily Gaenzle. "Effects of Fish Introductions on the Geographic Distribution and Native Invertebrate Biodiversity of Naturally Fishless Lakes in Maine". Fogler Library, University of Maine, 2008. http://www.library.umaine.edu/theses/pdf/SchillingEG2008.pdf.

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Rogers, Megan Bryn. "Woody debris and macroinvertebrate community structure of low-order streams in Colville National Forest, Washington". Connect to this title online, 2003. http://www.dissertations.wsu.edu/Thesis/Fall2003/m%5Frogers%5F121503.pdf.

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De, Moor Irene J. "Methods for assessing the susceptibility of freshwater ecosystems in Southern Africa to invasion by alien aquatic animals". Thesis, Rhodes University, 1994. http://hdl.handle.net/10962/d1005145.

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Two methods for predicting regions susceptible to invasion by alien aquatic animals were developed for southern Africa (excluding Zimbabwe and Mozambique). In the "traditional" (data-poor) approach, distributions of three categories of alien "indicator" species (warm mesothermal, cold stenothermal and eurytopic) were compared to seven existing biogeographical models of distribution patterns of various animals in southern Africa. On the basis of these comparisons a synthesis model was developed which divided southern Africa into seven regions characterised by their susceptibility to invasion by alien aquatic animals with particular habitat requirements. In the "data-rich," geographic information systems (GIS) approach, the distribution of trout (Oncorhynchus mykiss and Salmo trutta) in selected "sampled regions" was related to elevation (as a surrogate of water temperature) and median annual rainfall (MAR) (as a surrogate of water availability). Using concentration analysis, optimum conditions for trout were identified. Regions within a larger "predictive area" which satisfied these conditions, were plotted as a digital map using the IDRISI package. Using this method seven models of potential trout distribution were generated for the following regions: northern Natal (two); southern Natal/Lesotho/Transkei (three), eastern Cape (two) and western Cape (two). Since two of the models were used to refine the methods, only five models were considered for the final assessment. In a modification of the GIS method, another model of potential trout distribution, based on mean monthly July minimum air temperature and MAR parameters, was developed for the region bounded by 29º - 34º S and 26 º - 32°E. This model showed marked similarities to another model, developed for the region bounded by 29 º - 32°S and 26º - 32°E, which was based on elevation and MAR parameters. The validity of the models developed was assessed by independent experts. Of the six models considered, four received favourable judgements, one was equivocal and one was judged to be poor. Based on these assessments it was concluded that the GIS method has credibility and could be used to develop a "data-rich" model of the susceptibility of southern Africa to invasion by alien aquatic animals. This method represents an alternative to the bioclimatic matching approach developed by scientists in Australia. The GIS method has a number of advantages over the "traditional" method: it is more amenable to testing, has greater flexibility, stores more information, produces images of a finer resolution, and can be easily updated. The traditional method has the advantage of being less expensive and requiring a less extensive database.

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Jokela, Anneli. "Factors affecting the impact of invasive mussels on native freshwater mussels". Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=101146.

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Biological invasions are among the leading causes of species diversity loss; however, the impacts of invasion are context-dependent and can vary with the local environment. The mechanisms governing variation in impact and their relationship to specific abiotic and biotic factors remain largely unexplored. Recent local declines in native unionid mussels have been attributed to the invasion of North American lakes and rivers by the Eurasian zebra mussel ( Dreissena polymorpha), as a result of intense fouling of unionid shells by zebra mussels. My research investigated the role of abiotic and biotic factors in mediating the impact of zebra mussels on native mussels. I examined the impact of zebra mussels on unionids in a habitat thought to be suboptimal for zebra mussels and compared this to the impact observed in other invaded habitats. A predictive model relating fouling intensity to local environmental variables (calcium concentration, sediment particle size) was developed, and a predator-exclusion experiment was conducted to investigate the role of predation in mediating fouling intensity. Overall, I found that two abiotic factors of the local environment were significant predictors of fouling intensity and that relationships used to predict the impact of zebra mussels could be extended to a broader range of habitats.

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Libros sobre el tema "Freshwater animals"

Michael, Quigley, ed. Invertebrate animals of freshwater. Oxford: Basil Blackwell, 1986.

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Streit, Bruno, Thomas Städler y Curtis M. Lively, eds. Evolutionary Ecology of Freshwater Animals. Basel: Birkhäuser Basel, 1997. http://dx.doi.org/10.1007/978-3-0348-8880-6.

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Chinery, Michael. Questions and answers about freshwater animals. New York: Kingfisher Books, 1994.

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National Symposium on "Perspectives of Biodiversity, Ecophysiology, and Conservation of Freshwater Animals" (2002 Bhagalpur, India). Biodiversity, ecophysiology, and conservation of freshwater animals. Editado por Ojha Jagdish. Delhi: Narendra Pub. House, 2005.

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Akhrorov, Firuz. Gidrofauna i bioproduktivnostʹ vysokogornykh ozer i Pamira. Dushanbe: Institut zoologii i parazitologii im. E.N. Pavlovskogo, 2006.

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N, I͡A︡kovlev V., ed. Vodnye soobshchestva i biologii͡a︡ gidrobiontov. Leningrad: Izd-vo "Nauka," Leningradskoe otd-nie, 1985.

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Biologo-pochvennyĭ institut (Akademii͡a nauk SSSR), ed. Sistematika i ėkologii͡a rechnykh organizmov: Sbornik nauchnykh trudov. Vladivostok: DVO AN SSSR, 1989.

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Lim, Kelvin K. P., Darren C. J. Yeo y Luan Keng Wang. --An exposé of Singapore's freshwaters. Singapore: Published and distributed by Raffles Museum of Biodiversity Research, Faculty of Science, National University of Singapore, 2010.

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Setyadi, Gesang. Biota akuatik di perairan Mimika, Papua. Jakarta]: Freeport Indonesia, 2002.

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Diazgranados, María Claudia y Fernando Trujillo. Estudios de fauna silvestre en ecosistemas acuáticos en la Orinoquía Colombiana. Bogotá, D.C: Pontificia Universidad Javeriana, Facultad de Estudios Ambientales y Rurales, Instituto de Estudios Ambientales para el Desarrollo, Departamento de Ecología y Territorio, 2004.

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Capítulos de libros sobre el tema "Freshwater animals"

Merrick, J. R. "Freshwater Fishes". En Care and Handling of Australian Native Animals, 7–16. P.O. Box 20, Mosman NSW 2088, Australia: Royal Zoological Society of New South Wales, 1990. http://dx.doi.org/10.7882/rzsnsw.1990.002.

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Kriska, György. "Moss Animals – Bryozoa". En Freshwater Invertebrates in Central Europe, 374–77. Vienna: Springer Vienna, 2013. http://dx.doi.org/10.1007/978-3-7091-1547-3_23.

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Kriska, György. "Moss Animals: Bryozoa". En Freshwater Invertebrates in Central Europe, 509–18. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-95323-2_22.

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Dudgeon, David. "Amphibians and freshwater reptiles". En Threatened Freshwater Animals of Tropical East Asia, 210–69. London: Routledge, 2022. http://dx.doi.org/10.4324/9781003142966-7.

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Dudgeon, David. "Freshwater birds and mammals". En Threatened Freshwater Animals of Tropical East Asia, 270–320. London: Routledge, 2022. http://dx.doi.org/10.4324/9781003142966-8.

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Vangenechten, Jef H. D. "Acidification and Ecophysiology of Freshwater Animals". En Air Pollution and Ecosystems, 396–406. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-4003-1_39.

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Ponder, Winston y Cameron Slatyer. "Freshwater molluscs in the Australian arid zone". En Animals of Arid Australia, 1–13. P.O. Box 20, Mosman NSW 2088, Australia: Royal Zoological Society of New South Wales, 2007. http://dx.doi.org/10.7882/fs.2007.037.

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Leibold, M. A. y A. J. Tessier. "Habitat partitioning by zooplankton and the structure of lake ecosystems". En Evolutionary Ecology of Freshwater Animals, 3–30. Basel: Birkhäuser Basel, 1997. http://dx.doi.org/10.1007/978-3-0348-8880-6_1.

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Johnson, S. G., C. M. Lively y S. J. Schrag. "Evolution and ecological correlates of uniparental and biparental reproduction in freshwater snails". En Evolutionary Ecology of Freshwater Animals, 263–91. Basel: Birkhäuser Basel, 1997. http://dx.doi.org/10.1007/978-3-0348-8880-6_10.

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Okamura, B. "Genetic similarity, parasitism, and metapopulation structure in a freshwater bryozoan". En Evolutionary Ecology of Freshwater Animals, 293–320. Basel: Birkhäuser Basel, 1997. http://dx.doi.org/10.1007/978-3-0348-8880-6_11.

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Actas de conferencias sobre el tema "Freshwater animals"

Movsesyan, S. O., R. A. Petrosyan, M. A. Nikogosyan, R. E. Barsegyan, N. B. Terenina, M. V. Voronin y M. V. Vardanyan. "BIODIVERSITY OF THE PARASITE FAUNA IN THE NORTHERN REGIONS OF ARMENIA AND THE LAKE SEVAN BASIN". En THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL. All-Russian Scientific Research Institute for Fundamental and Applied Parasitology of Animals and Plant – a branch of the Federal State Budget Scientific Institution “Federal Scientific Centre VIEV”, 2023. http://dx.doi.org/10.31016/978-5-6048555-6-0.2023.24.306-311.

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The variety of parasite species, infection of domesticated animals (including cattle, sheep, goats, rabbits, poultry, dogs and pigs), natural infection of biohelminths' intermediate hosts (including terrestrial and freshwater mollusks, soil oribatid mites) with helminth larvae, and the species composition of tick vectors of blood protozoan diseases have been studied. The studies found the infection of the above animals with the following helminth species: 4 trematode species Fasciola hepatica, F. gigantica, Dicrocoelium lanceatum, Paramphistomum sp., 13 nematode species Ascaris suum, A. galli, Syngamus trachea, Capillaria caudinflata, Trichuris ovis, Tr. suis, Metastrongylus elongatus, Chabertia sp., Haemonchus sp., Protostrongylus spp., Muellerius capillaris, Dictyocaulus filaria, Cystocaulus nigrescens, 2 cestode species Moniezia expansa, M. benedeni; 9 eimeria species Eimeria arloingi, E. intricata, E. stidae, E. magna, E. perforans, E. tenella, E. acervulina, and E. exigua; 3 Haemosporidia species Babesia bigeminum, B. ovis, and B. canis; and 1 Leishmania species Leishmania tropica. There were also detected 17 species of ticks, vectors of blood protozoan diseases of animals, and intermediate hosts of moniezia were isolated. Two species of terrestrial and 3 species of freshwater mollusks being as intermediate hosts of helminths were recorded.

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Giorgadze, Anatoli y Marine Barvenashvili. "Local and endemic animal genetic resources of Georgia". En Scientific and practical conference with international participation: "Management of the genetic fund of animals – problems, solutions, outlooks". Scientific Practical Institute of Biotechnologies in Animal Husbandry and Veterinary Medicine, 2023. http://dx.doi.org/10.61562/mgfa2023.15.

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The article describes some of animal external characteristics and yield indicators. The mentioned animals are important for the country's agro-biodiversity, having valuable genes and their alleles, the loss of which will significantly limit the possibilities and efficiency of providing breeding works. Also Georgia is a country of great diversity of freshwater fish species that is facilitated due to the landscape diversity and richness of water resources. In addition, local breed varieties and populations are valuable because they are considered as the best adapted to local conditions and resistant to various diseases. Unfortunately, today their number is significantly reduced, their genetic purity is also in question. We consider the use of in- situ, ex- situ, in vivo, in vitro conservation methods to be the best way out of the situation.

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Ratanpara, Abhishek P., Alexander Shaw, Sanat Deshpande y Myeongsub Kim. "Utilization of Ocean Water for CO2 Capture via Amine Scrubbing". En ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-19215.

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Abstract As the consumption of fossil fuel resources has continuously increased to meet global fuel demands for power generation, atmospheric emissions of greenhouse gases, particularly carbon dioxide (CO2), have rapidly increased over the last century. Increased CO2 emissions have caused serious international concerns about global warming, sea-level rise, and ocean acidification. Although post-combustion carbon capture technology that separates CO2 from flue gas in fossil fuel-fired power plants has contributed to significant migration of atmospheric CO2 emissions, this approach generates considerable amounts of toxic wastewater containing a heavy chemical which is difficult to treat, raises concerns about acute corrosion of metal structures in the facility, and waste of significant amounts of freshwater. In this research, we are particularly interested in reducing the use of freshwater for CO2 capture and generating carbonate minerals, byproducts of CO2 with calcium (Ca2+) or magnesium ions (Mg2+) in ocean water which are useful building blocks for marine animals, such as seashells and coral reefs. In our experimental approach, we attempted to use ocean water with different monoethanolamine (MEA) concentrations and compared the CO2 capturing efficiency with that in DI water. We found that there are considerable benefits of the use of ocean water in CO2 dissolution, showing that a replacement of freshwater with ocean water would be a possible option. In the future, we will further enhance the dissolution of CO2 in ocean water by using nanoparticle catalysts without using MEA, which will be an environmentally friendly method for CO2 capture.

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Movsesyan, S. O., M. V. Vardanyan, R. A. Petrosyan, M. A. Nikogosyan, L. D. Arutyunova, M. Y. Rukhkyan, R. L. Hovhannisyan et al. "PARASITE FAUNA BIODIVERSITY IN ANIMALS AND PLANTS IN ANTHROPOGENIC ECOSYSTEM OF THE NORTH ARMENIAN REGIONS, LORI AND TAVUSH, AND THE LAKE SEVAN BASIN". En THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL. VNIIP – FSC VIEV, 2024. http://dx.doi.org/10.31016/978-5-6050437-8-2.2024.25.268-274.

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The parasite fauna in domestic animals, birds, fish, ixodofauna, some biohelminths’ circulation routes, and nematodes isolated from wood samples were studied. The fauna includes 50 species including 29 helminth species, of which 6 trematode species: Dicrocoelium dendriticum (D. lanceatum), Fasciola hepatica, F. gigantica, Paramphistomum cervi, Diplostomum spathaceum and D. paraspathaceum; 4 cestode species: Moniezia expansa, M. benedeni, Ligula intestinalis and Schyzocotyle acheilognathi; 18 nematode species: Ascaris suum, Ascaridia galli, Amidostomum anseris, Heterakis gallinarum, Syngamus trachea, Capillaria obsignata, Trichuris ovis, T. suis, Chabertia ovina, Nematodirus spathiger, Protostrongylus hobmaieri, Muellerius capillaris, Cystocaulus nigrescens, Metastrongylus elongatus, Strongylus equinus, Passalurus ambiguus, Rhabdochona macrostoma and R. fortunatovi, and one acanthocephalan species Pomphorhynchus kostylewi. We also found seven Eimeria species: E. exigua, E. media, E. stiedae, E. irresidua, E. perforans, E. magna and E. tenella, and two haematophagous parasites: Babesia bigemina and B. canis. The terrestrial molluscs, intermediate hosts of Dicrocelia and Protostrongylus, were represented by the species Hesseola solidior, and freshwater molluscs, intermediate hosts of Dicrocelia and paramphistomes, were represented by two species: Ancylus fluviatilis and Planorbis planorbis. One species of soil mites, intermediate hosts of cestodes of the Scheloribates gen., was identified. We identified species composition of ixodid ticks totaling 12 species: Ixodes ricinus, I. redikorzevi, I. persulcatus, Dermacentor marginatus, D. pictus, D. silvarum, Hyalomma aegyptium, H. marginatum (= H. plumbeum), H. asiaticum caucasicum, Rhipicephalus sanguineus, R. annulatus, R. bursa.

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Kaniyazov, A. J., A. I. Dilmanova y I. E. Sarsenbaev. "INFECTION OF DONKEYS BY TREMATODA FASCIOLA GIGANTICA (COBBOLD, 1855) IN KARAKALPAKSTAN". En THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL. VNIIP – FSC VIEV, 2024. http://dx.doi.org/10.31016/978-5-6050437-8-2.2024.25.158-162.

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The research purpose was to study the infection of donkeys by the trematode Fasciola gigantica (Cobbold, 1855) of the Fasciolidae family in Karakalpakstan. Materials for the study were collected throughout the Republic of Karakalpakstan. During this period, 31 animals were examined by complete or partial helminthological dissections per Academician K. I. Skryabin (1928). In addition, 156 fecal samples were taken from the donkeys and examined using helminthocoprological methods. When determining the species composition of helminths found in the research conducted in the Republic of Karakalpakstan, attention was paid to their morphological characteristics and localization. According to the development cycle, Fasciola gigantica is a biohelminth and develops with an intermediate host. The intermediate host’s functions are performed by freshwater mollusks of the Lymnaeidae family. The results of the analysis found Fasciola gigantica in the examined donkeys and determined that it belonged to the phylum Plathelminthes, class Trematoda, order Fasciolida, family Fasciolidae, genus Fasciola. The Fasciola gigantica prevalence in the body of the donkeys was 6.4%, and the invasion intensity, 3–19 specimens. Throughout the study, morphological characteristics of the species Fasciola gigantica were studied. Based on the morphological characteristics, the body of Fasciola gigantica was somewhat oblong with the length of 30–75 mm.

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Ajtai, Iulia, Marius Oprea, Cristian Malos, Andrei Radovici y Camelia Botezan. "THE VULNERABILITY ANALYSIS OF A MOUNTAIN RIVER ECOSYSTEM ASSOCIATED TO ANTHROPIC ACTIVITIES, IN A TOURISTIC AREA IN ROMANIA". En 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022/3.1/s12.25.

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The population and economy growth in the past years, and subsequently the increased demand for freshwater, led to an increased pressure on water resources. The quality of surface water is affected by anthropogenic factors, such as: domestic sewage, industrial activities, agricultural activities, recreational activities, land use change, urbanization. Therefore, the impact on surface water vulnerability is higher in large urban areas or in urban areas with intense touristic activities. The analysis of water vulnerability in such areas is important in order to develop sustainable water resources management strategies. In this paper, a vulnerability assessment index was developed in order to analyze the surface water vulnerability on a section of Prahova River (from source to Breaza city). The urban areas located in this section of the river are characterized by intense touristic activities, with a large influx of people. The vulnerability index was developed using GIS tools and analyzing specific indicators such as: different types of land use and in particular urban areas, length of the roads in the study area, resident population, influx of tourists, animals, slope and sinuosity of the river. The river was divided into sectors and a vulnerability index was calculated for each sector. Moreover, a comparison analysis was done, considering a second scenario for the year 2020 in which the number of tourists was highly reduced, in order to investigate the impact of this indicator on the water vulnerability. The results, represented by the vulnerability map showed that the most vulnerable sectors of the river are situated in proximity to urban areas and furthermore, the touristic activities increase the impact on surface water resources.

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Duever, Michael y Ananta Nath. "Hydrologic Monitoring Criteria for Freshwater Wetland Plant and Animal Communities". En World Environmental and Water Resources Congress 2006. Reston, VA: American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40856(200)339.

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Dharmawati, Siti, Muhammad Halim Natsir, Osfar Sjofjan y Hartutik Hartutik. "Effectiveness Of Rice Husk Charcoal As Bioadsorben In Absorbing Heavy Metal Lead (Pb) On Freshwater Snail Meat (Pomacea sp.)". En 6th International Seminar of Animal Nutrition and Feed Science (ISANFS 2021). Paris, France: Atlantis Press, 2022. http://dx.doi.org/10.2991/absr.k.220401.016.

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Mourão, Ana V. y Ana Sampaio. "Potential Hazard to Human and Animal Health from Bacterial and Fungal Contaminants in Small Freshwater Reservoirs". En ECERPH-4. Basel Switzerland: MDPI, 2022. http://dx.doi.org/10.3390/ecerph-4-13071.

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Ozolina, Kristine, Inga Sarenkova y Sandra Muizniece-Brasava. "The anti-nutritional factors of legumes and their treatment possibilities: a review". En Research for Rural Development 2023 : annual 29th international scientific conference proceedings. Latvia University of Life Sciences and Technologies, 2023. http://dx.doi.org/10.22616/rrd.29.2023.010.

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Today the demand for plant-based protein is growing rapidly due to increased awareness of animal protein growing costs and limited supply and has been highly related to biodiversity loss, climate change, and freshwater depletion. Legumes are in demand for their high content of protein, minerals, vitamins, and carbohydrates, also including dietary fibre. Legumes are rich not only in macronutrients and micronutrients but also contain anti-nutritional factors. One of the most important anti-nutritive properties of legumes is their high trypsin activity. The length of time required for the preparation of legumes has limited their frequency of use compared to recommended intake levels. By heat treatment, an anti-nutritional component in legumes can be mostly separated. The possibility of using extrusion cooking, microwave dryer, roasting equipment, etc., is widely studied. Roasting is one of the widespread methods for treatment of legumes that significantly enhances the texture, flavour, colour, and product appearance. The latest studies in the legume treatments report valuable results after the combined treatments, wet roasting, which includes: dehulling, soaking, and roasting. Heat treatment can be a potential way to improve legumes use in food production: reducing the time required for treatment, preparation and improving nutritional value.

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Informes sobre el tema "Freshwater animals"

Bowles, David, Michael Williams, Hope Dodd, Lloyd Morrison, Janice Hinsey, Tyler Cribbs, Gareth Rowell, Michael DeBacker, Jennifer Haack-Gaynor y Jeffrey Williams. Protocol for monitoring aquatic invertebrates of small streams in the Heartland Inventory & Monitoring Network: Version 2.1. National Park Service, abril de 2021. http://dx.doi.org/10.36967/nrr-2284622.

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The Heartland Inventory and Monitoring Network (HTLN) is a component of the National Park Service’s (NPS) strategy to improve park management through greater reliance on scientific information. The purposes of this program are to design and implement long-term ecological monitoring and provide information for park managers to evaluate the integrity of park ecosystems and better understand ecosystem processes. Concerns over declining surface water quality have led to the development of various monitoring approaches to assess stream water quality. Freshwater streams in network parks are threatened by numerous stressors, most of which originate outside park boundaries. Stream condition and ecosystem health are dependent on processes occurring in the entire watershed as well as riparian and floodplain areas; therefore, they cannot be manipulated independently of this interrelationship. Land use activities—such as timber management, landfills, grazing, confined animal feeding operations, urbanization, stream channelization, removal of riparian vegetation and gravel, and mineral and metals mining—threaten stream quality. Accordingly, the framework for this aquatic monitoring is directed towards maintaining the ecological integrity of the streams in those parks. Invertebrates are an important tool for understanding and detecting changes in ecosystem integrity, and they can be used to reflect cumulative impacts that cannot otherwise be detected through traditional water quality monitoring. The broad diversity of invertebrate species occurring in aquatic systems similarly demonstrates a broad range of responses to different environmental stressors. Benthic invertebrates are sensitive to the wide variety of impacts that influence Ozark streams. Benthic invertebrate community structure can be quantified to reflect stream integrity in several ways, including the absence of pollution sensitive taxa, dominance by a particular taxon combined with low overall taxa richness, or appreciable shifts in community composition relative to reference condition. Furthermore, changes in the diversity and community structure of benthic invertebrates are relatively simple to communicate to resource managers and the public. To assess the natural and anthropo-genic processes influencing invertebrate communities, this protocol has been designed to incorporate the spatial relationship of benthic invertebrates with their local habitat including substrate size and embeddedness, and water quality parameters (temperature, dissolved oxygen, pH, specific conductance, and turbidity). Rigid quality control and quality assurance are used to ensure maximum data integrity. Detailed standard operating procedures (SOPs) and supporting information are associated with this protocol.

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Michalak, Julia, Josh Lawler, John Gross y Caitlin Littlefield. A strategic analysis of climate vulnerability of national park resources and values. National Park Service, septiembre de 2021. http://dx.doi.org/10.36967/nrr-2287214.

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The U.S. national parks have experienced significant climate-change impacts and rapid, on-going changes are expected to continue. Despite the significant climate-change vulnerabilities facing parks, relatively few parks have conducted comprehensive climate-change vulnerability assessments, defined as assessments that synthesize vulnerability information from a wide range of sources, identify key climate-change impacts, and prioritize vulnerable park resources (Michalak et al. In review). In recognition that funding and planning capacity is limited, this project was initiated to identify geographies, parks, and issues that are high priorities for conducting climate-change vulnerability assessments (CCVA) and strategies to efficiently address the need for CCVAs across all U.S. National Park Service (NPS) park units (hereafter “parks”) and all resources. To help identify priority geographies and issues, we quantitatively assessed the relative magnitude of vulnerability factors potentially affecting park resources and values. We identified multiple vulnerability factors (e.g., temperature change, wildfire potential, number of at-risk species, etc.) and sought existing datasets that could be developed into indicators of these factors. To be included in the study, datasets had to be spatially explicit or already summarized for individual parks and provide consistent data for at least all parks within the contiguous U.S. (CONUS). The need for consistent data across such a large geographic extent limited the number of datasets that could be included, excluded some important drivers of climate-change vulnerability, and prevented adequate evaluation of some geographies. The lack of adequately-scaled data for many key vulnerability factors, such as freshwater flooding risks and increased storm activity, highlights the need for both data development and more detailed vulnerability assessments at local to regional scales where data for these factors may be available. In addition, most of the available data at this scale were related to climate-change exposures, with relatively little data available for factors associated with climate-change sensitivity or adaptive capacity. In particular, we lacked consistent data on the distribution or abundance of cultural resources or accessible data on infrastructure across all parks. We identified resource types, geographies, and critical vulnerability factors that lacked data for NPS’ consideration in addressing data gaps. Forty-seven indicators met our criteria, and these were combined into 21 climate-change vulnerability factors. Twenty-seven indicators representing 12 vulnerability factors addressed climate-change exposure (i.e., projected changes in climate conditions and impacts). A smaller number of indictors measured sensitivity (12 indicators representing 5 vulnerability factors). The sensitivity indicators often measured park or landscape characteristics which may make resources more or less responsive to climate changes (e.g., current air quality) as opposed to directly representing the sensitivity of specific resources within the park (e.g., a particular rare species or type of historical structure). Finally, 6 indicators representing 4 vulnerability factors measured external adaptive capacity for living resources (i.e., characteristics of the park and/or surrounding landscape which may facilitate or impede species adaptation to climate changes). We identified indicators relevant to three resource groups: terrestrial living, aquatic living (including living cultural resources such as culturally significant landscapes, plant, or animal species) and non-living resources (including infrastructure and non-living cultural resources such as historic buildings or archeological sites). We created separate indicator lists for each of these resource groups and analyzed them separately. To identify priority geographies within CONUS,...

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