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Розподiл важких металiв у гiдроекосистемi озера Пiсочне Шацького нацiонального природного парку (Украiна) IBSS Repository
Гуменюк, Г. Б.; Редчук, Н. В.; Грубiнко, В. В..
Представлены результаты изучения аккумуляции и перераспределения тяжелых металлов (валового содержания и концентрации растворённых форм) - меди, кобальта, цинка, марганца (биогенных), а также свинца, кадмия и никеля (небиогенных) - в пресноводной экосистеме (воде, прибрежном иле) в озере Песочное Шацкого национального природного парка в зависимости от физических, гидрофизических и биологических факторов.
Tipo: Journal Contribution Palavras-chave: Heavy metals; Freshwater lakes; Heavy metals; Http://aims.fao.org/aos/agrovoc/c_2223.
Ano: 2007 URL: http://repository.ibss.org.ua/dspace/handle/99011/607
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Загрязнение Геленджикской бухты ливневым стоком IBSS Repository
Крыленко, В. В.; Есин, Н. В..
Проанализированы результаты гидрохимических съёмок в акватории Геленджикской бухты, выполненных с целью определения объемов загрязняющих веществ, выносимых ливневыми стоками. Установлено, что загрязнение морской воды проявляется в образовании отдельных линз с высокой концентрацией загрязняющих веществ вблизи источников загрязнения. В Геленджикской бухте коэффициент горизонтального обмена воды очень мал, поэтому пятна «грязной» воды сохраняются в течение длительного времени. Во время действия ветра, направленного с берега в море, загрязненная вода уходит в море, её замещает чистая вода открытого моря. Рассчитаны объемы сбрасываемых в бухту нефтепродуктов и тяжелых металлов.
Tipo: Journal Contribution Palavras-chave: Pollution; Oil pollution; Heavy metals; Heavy metals; Pollution; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_6077.
Ano: 2001 URL: http://repository.ibss.org.ua/dspace/handle/99011/570
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Distribución del mercurio total en los tejidos de un delfín nariz de botella (Tursiops gephyreus Lahille, 1908) de la provincia de Buenos Aires (Argentina) OceanDocs
Malaspina, A.M.; Pérez, A.; Moreno, V.J.; Bastida, R.O.; Aizpun, J.E..
Samples of seventeen different tissues of one specimen of the bottlenose dolphin Tursiops gephyreus, caught accidentally in waters adjacent to Mar del Plata by local fishermen (38°00'S; 57°20'W), were analyzed for total mercury distribution. The analytical procedure employed for total mercury involved a wet acid digestion followed by flameless atomic absorption. The method was based essentially on the one proposed by Armstrong and Uthe (1971).
Tipo: Journal Contribution Palavras-chave: Heavy metals; Mercury; Methodology; Aquatic mammals; Heavy metals; Mercury; Methodology; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_4751; Http://aims.fao.org/aos/agrovoc/c_12522.
Ano: 1984 URL: http://hdl.handle.net/1834/2050
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Actividad antioxidante del alga Ulva fasciata Delile sometida a distintos niveles de contaminación marina OceanDocs
Hernández, Y.; Laguna, A.; Fernández, M.D.; Valdés, O.; Regalado, E.L..
Ha sido demostrado, por otros autores, que el alga Ulva fasciata Delile posee una actividad antioxidante promisoria y en el presente trabajo evaluamos si la actividad antioxidante de muestras de esta alga puede ser influenciada por la adsorción de metales, pesados y otros por parte del alga. U. fasciata fue colectada en tres zonas de las costas de la Ciudad de la Habana que presentan diferentes niveles de eutrofización: 1) la desembocadura del Río Quibú, un río que atraviesa una importante zona industrial de la capital cubana y en la cual la concentración de metales acumulados por el alga fue mayor; 2) la zona del Malecón habanero, que recibe la contaminación de la bahía de la Habana y del Río Almendares pero no de forma directa, donde presentó valores...
Tipo: Journal Contribution Palavras-chave: Algae; Marine environment; Heavy metals; Marine environment; Heavy metals; Algae; Http://aims.fao.org/aos/agrovoc/c_4610; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_258.
Ano: 2008 URL: http://hdl.handle.net/1834/2919
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Metodología de bioensayos y efectos tóxicos de algunos contaminantes sobre organismos de interés ecológico pesquero OceanDocs
Suárez Álvarez, G..
Este trabajo trata de presentar los efectos tóxicos de cuatro posibles contaminantes de la plataforma cubana, un plaguicida órgano clorado el DDT y 3 metales, el cromo, el cobre y el plomo, sobre postlarvas de langosta P. argus y el camarón P. notialis. Persiguiendo un triple propósito en sus objetivos, presentar de una forma cómoda, con fines didácticos la resolución de los tres métodos de trabajo adoptados internacionalmente para evaluar la toxicidad, el método gráfico semi logarítmico, rutinario o estándar, el método de los Probits de Bliss y la modificación de Licthfield y wilcoxon, así como analizar de dichas metodologías cual es la más adecuada para la evaluación de los efectos de cualquier contaminante con mayor precisión estadística y conocer los...
Tipo: Theses and Dissertations Palavras-chave: Toxicity; Heavy metals; Metals; Toxicity; Heavy metals; Metals; Http://aims.fao.org/aos/agrovoc/c_7826; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_29036.
Ano: 1996 URL: http://hdl.handle.net/1834/2610
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Impact saisonnier de l'environnement sur la structure génétique de trois populations de ruditapes decussatus dans l'ecosystème lagunaire de Bizerte (Tunisie) OceanDocs
Fassatoui, CH.; Mdelgi-Lasram, E.; Moraga, D.; Romdhane, M.S..
في محاولة لتقييم تأثيرالاضطرابات التي يمكن ان تغير التركيبه الجينيه للمحار ببحيره بنزرت، اجريت تحاليل جينيه على عينات من ثلاثة مجموعات. و قد بينت النتائج تواجد علاقة متبادله بين فقدان التنوع ومستويات métallothionéines في خياشيم المحار التي يمكن ان تكون مرتبطة مع وجود تدرج الانسياب المحمل بالمعادن الثقيلة بين مناطق منزل جميل،فروة والشعرة.
Tipo: Journal Contribution Palavras-chave: Ruditapes decussatus; Clam culture; Environmental effects; Environmental impact; Heavy metals; Metallothioneins; Population genetics; Toxicity; Environmental impact; Heavy metals; Population genetics; Toxicity; Biomarkers of exposure (organisms); Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_34326; Http://aims.fao.org/aos/agrovoc/c_7826; Http://aims.fao.org/aos/agrovoc/c_36994.
Ano: 2007 URL: http://hdl.handle.net/1834/4258
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Evaluación de la tasa fotosintética del alga verde Rhizoclonium riparium (Roth) Kützing ex Harvey, expuesta a cobre y su uso como indicador de contaminación por metales en aguas estuarinas OceanDocs
Montoya, W.; Peña, E.J.; Benítez, R..
Algae have been used as bioindicators by having several advantages such as they have short life cycles, they can take up nutrients directly from water, they are generally easy to collect in sufficient amounts from various habitats; and they readily accumulate compounds present in seawater, making tissue analyses reliable indicators of water quality. In order to evaluate the bioremoval capability of the green alga Rhizoclonium riparium, the photosynthetic responses to heavy metal pollution under different sublethal concentrations of copper was assessed. Photosynthetic rates were significantly low (p <0.05) at low copper concentrations, between (0.01 y 10 mg/l). Maximum photosynthetic values were shown at 30 y 60 mg/l and almost cero at 150 mg/ l of Cu....
Tipo: Conference Material Palavras-chave: Heavy metals; Biological stress; Algae; Indicator species; Pollution; Bioaccumulation; Copper; Water quality; Estuaries; Heavy metals; Pollution; Bioaccumulation; Copper; Water quality; Estuaries; Algae; Indicator species; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_6077; Http://aims.fao.org/aos/agrovoc/c_32389; Http://aims.fao.org/aos/agrovoc/c_1868; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_2673; Http://aims.fao.org/aos/agrovoc/c_258; Http://aims.fao.org/aos/agrovoc/c_35790.
Ano: 2006 URL: http://hdl.handle.net/1834/2256
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Evaluación de las zonas con impacto antrópico del Golfo de Batabanó, Cuba. Empleo de índices de calidad. OceanDocs
Martínez Canals, M.; Montalvo, J. F.; Lugioyo, G.M.; Loza, S.; Pérez, R..
Se realizó la evaluación de los posibles cambios ambientales debido a los impactos antrópicos que han ocurrido en los últimos años en este escenario y la redefinición de áreas que sufren afectaciones, teniendo en cuenta que cualquier alteración ambiental de este ecosistema, ya sea de origen natural o humano, puede tener una importante repercusión económica y social. A partir de los índices químicos y biológicos propuestos, las aguas del Golfo de Batabanó presentaron condiciones mesotróficas con tendencia a la eutrofización en cuatro áreas fundamentales. En los sedimentos del Golfo los valores de carbono orgánico (0.16-7.30 %) y sulfhídrico (12,19-22,90 μg/L) fueron característicos de fondos con altas concentraciones de materia orgánica. En el sector...
Tipo: Journal Contribution Palavras-chave: Phytoplankton; Sediments; Heavy metals; Phytoplankton; Heavy metals; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_2223.
Ano: 2006 URL: http://hdl.handle.net/1834/3340
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Determinación experimental del límite de detección, en el análisis de metales pesados en organismos marinos, por espectrofotometría de absorción atómica OceanDocs
Moreno, V.J.; Pérez, A..
The determination limit is defined as the minimum concentration of a substance in a sample that can be distinguished from the background with a given probability, using a particular analytical method. It is assumed that the concept of detention can be used satisfactorily to quality an analytical method. Some criteria which are necessary for intercalibration purpose are given in this paper. An algebraic method to calculate the detection limit easily and with minimum experimental work was developed. A method to determine the number of repetitions needed when the levels of the analyzed substance are near or under the detection limit of the method is also shown.
Tipo: Journal Contribution Palavras-chave: Heavy metals; Spectroscopic techniques; Marine organisms; Heavy metals; Http://aims.fao.org/aos/agrovoc/c_2223.
Ano: 1984 URL: http://hdl.handle.net/1834/2051
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The anthropogenic effluents of the human activities on the red sea coast at hurghada harbour (case study) OceanDocs
Madkour, H.A.; Dar, M.A..
The heavy metal accumulations in the seawater, coral reefs and two effective fractions of underlying sediments (<0.125mm and < 0.063mm) were studied in the coastal and tidal flat zones at the main shipyard near of Hurghada Harbour. The area of investigation is very worse whereas, it is considered tailing outlet for both solid and liquid influents of many human activities in/and surrounding the harbour. The solid phases are of construction remains, paint remains, iron pipe rusts, hydrocarbons, plastic bags, metal and wood remains as well as the artificially conglomerate stones that thrown in the in the marine area. The liquid phase is restricted in the continuous brine water draining to the sea from a huge desalination plant (Capacity 5000 cubic...
Tipo: Journal Contribution Palavras-chave: Environmental Study; Sediments; Sea water; Coral reefs; Heavy metals; Coral reefs; Heavy metals; Sea water; Http://aims.fao.org/aos/agrovoc/c_1880; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_6903.
Ano: 2007 URL: http://hdl.handle.net/1834/1890
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Caractérisation préliminaire à partir de la lagune de Bizerte (Tunisie) des bactéries tolérantes aux hydrocarbures aromatiques polycliques (HAPS) OceanDocs
Duran, R.; El Bour, M.; Ben Said, O.; Goni, M. S.; Dalleli, M.; Aissa, P..
م إنجاز هذه الدراسة لهدف عَزَلَ بَكْتِيريَا قادرة على استعمالتم إنجاز هذه الدراسة لهدف عَزَلَ بَكْتِيريَا قادرة على استعمال الهيدروكربنات و مقاومة للمعادن والمضادات الحيوية و في هذا الإطار تم أخذ عينات من الماء و التربة على مستوى 16محطة موزعة ببحيرة بنزرت. كما تم عزل البكتيريا بطريقة الإثراء باستعمال وسط مائي معدني زائد هيدروكربنات (fluoranthène) وقد توصلنا في عملية أولية من عزل 130 من الأجذال المختلفة من البكتيريا والتي تم تعريفها عبر الخاصيات الشكلية و البيوكيميائية. وأثبتت النتائج الأولية أن البكتيريا القادرة على استعمال الهيدروكربنات تنتمي لمجموعات مختلفةGram – و Gram+ على التَّوَالِي بنسبتي 65% و 35 %. وتضم مجموعة البكتيريا من نوع العصيات Gram – أكبر عدد من الأجذال المعزولة (74 %). ختاما نشير أن دراسة قدرة الأجذال على مقاومة المعادن...
Tipo: Journal Contribution Palavras-chave: Bacteria; Antibiotics; Biodegradation; Control resistance; Heavy metals; Hydrocarbons; Pollution monitoring; Antibiotics; Biodegradation; Heavy metals; Hydrocarbons; Http://aims.fao.org/aos/agrovoc/c_492; Http://aims.fao.org/aos/agrovoc/c_9261; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_3719.
Ano: 2007 URL: http://hdl.handle.net/1834/4257
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etude quantitative et qualitative des métallothioneines chez la daurade <"Sparus aurata"> exposée aux metaux lourds OceanDocs
Jebali, J.; Ghedira, J.; Bouraoui, Z.; Ameur, S.; Gherbej, H.; Boussetta, H..
Dans l’environnement marin, les éléments traces peuvent s’accumuler dans les organismes à des concentrations supérieures à celles présentes dans l’eau. L’étude de la distribution tissulaire des métaux traces au niveau des organismes qui y sont exposés, constitue un aspect très important pour la compréhension de leur devenir. En outre, le suivi de la réponse biologique spécifique de ces organismes sentinelles aux xénobiotiques complète et consolide l’analyse chimique. Ce travail vise à étudier la distribution tissulaire des métaux traces et des métallothionéines (MTs) chez la daurade «Sparus aurata » traitée par un métal essentiel (le cuivre) et un métal non essentiel (le cadmium) à une concentration de 500µg /Kg de poids frais pendant 48 heures....
Tipo: Journal Contribution Palavras-chave: Heavy metals; Pollutants; Heavy metals; Pollutants; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_6076.
Ano: 2009 URL: http://hdl.handle.net/1834/3780
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Assessment of heavy metals and nonessential content of some edible and soft tissues OceanDocs
Ahdy, H.H.H.; Abdallah, A.M.; Tayel, F.T..
The level concentrations of heavy metals (essential and nonessential) were measured in different marine biota including cephalopoda, bivalve, crustacean and fish. The results reveal that these organisms show more or less the same order of distribution for each of the metals studied. The average concentrations of heavy metals exhibited the following decreasing order: cephalopoda > bivalve > crustacean > fish. The levels of metals in all studied samples are still comparable to those in their corresponding in the Mediterranean Sea. K (98-181μg/g) and Ca (547-1472 μg/g) were present at the highest concentrations in all investigated samples. Octopus and Sepia do not follow the general pattern. The highest value of Metal Pollution Index (MPI) in...
Tipo: Journal Contribution Palavras-chave: Field Study; Heavy metals; Marine crustaceans; Fish; Heavy metals; Fish; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_15903.
Ano: 2007 URL: http://hdl.handle.net/1834/1898
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Heavy metal contaminants in some Nigerian marine fishes of commercial importance OceanDocs
Sadik, O. A..
Trace metal levels were determined in tissues of eleven species of marine fishes of commercial importance and in water and sediments taken from six sites located along the Nigerian Coastal waters. The Study was undertaken to determine the occurrence and the levels of cadmium, nickel, lead, mercury and zinc in fish tissues, water and sediments, and to establish a baseline data to which future studies on the levels of this metals could be referred. The total concentrations of each element in the samples were determined without regard to chemical form. Mean levels of each element are presented to relation to the number of species examined. More detailed analytical data on these elements are given with reference to tissue analysed, size range of fish and...
Tipo: Report Palavras-chave: Heavy metals; Water pollution; Heavy metals; Water pollution; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_8321.
Ano: 1990 URL: http://hdl.handle.net/1834/2429
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Distribución de metales pesados (Pb, Cd y Zn) en perfiles de sedimento asociado a Rhizophora mangle en el Río Sevilla - Ciénaga Grande de Santa Marta, Colombia. OceanDocs
Parra, J.P.; Espinosa, L.F..
Con el propósito de evaluar la distribución vertical de metales pesados Pb, Cd y Zn en el sedimento asociado a las plantas de Rhizophora mangle, se determinaron las concentraciones potencialmente biodisponibles y no biodisponibles, en tres perfiles de sedimento colectados en el río Sevilla, Ciénaga Grande de Santa Marta. Las mediciones se hicieron con la técnica de espectrometría de emisión atómica de plasma inductivamente acoplado. Los resultados mostraron que en el ecosistema de manglar del río Sevilla estos metales se acumulan principalmente en formas no biodisponibles, lo cual indica que la mayor parte de estos elementos se encuentran retenidos en el sedimento. La retención del Pb, Cd y Zn en el sedimento de éste ecosistema de manglar está fuertemente...
Tipo: Journal Contribution Palavras-chave: Heavy metals; Sediments; Heavy metals; Http://aims.fao.org/aos/agrovoc/c_2223.
Ano: 2008 URL: http://hdl.handle.net/1834/3511
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Análisis de contaminantes inorgánicos tóxicos en las aguas del Rio Almendares, Cuba OceanDocs
Rodríguez, A.J.; Arpajón, I.; Castaño, Z.; Marsán, R.; Lugo, D.; Roevros, N.; Chou, L.; Rojas, N.; Heydrich, M..
The Almendares River constitutes the most important superficial stream in Cuban capital, that finishes in the Metropolitan Park of Havana, which is an entertaining centre. The objective of this work is to determine the presence of toxic inorganic pollutants in the Almendares River water. 10 samplings were carried out from June 2003 to May 2004 in 14 stations established along the last 10 km of the river and 3 tributaries. The quantification of nitrates, nitrites and ammonium was done by spectrophotometric methods The concentration of heavy metals in the dissolved and particulate phase was determined by atomic emission spectrometry. The total microbial charge was determined by epifluorescency. Were found high levels of ammonium and nitrites, as well as high...
Tipo: Proceedings Paper Palavras-chave: Rivers; Freshwater pollution; Heavy metals; Rivers; Heavy metals; Http://aims.fao.org/aos/agrovoc/c_6617; Http://aims.fao.org/aos/agrovoc/c_2223.
Ano: 2006 URL: http://hdl.handle.net/1834/2086
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Heavy metals distribution of soils around mining sites of cadmium-rich marine sedimentary phosphorites of Kpogamé and Hahotoé (Southern Togo) OceanDocs
Gnandi, K.; Tobschall, H.J..
Metal concentrations of 37 soil samples taken from mining areas (abandoned mine pits and transport routes) in Kpogamé and Hahotoé (southern Togo) range from 0.2-43 ppm for Cd, 15-115 ppm for Pb, 182-1,029 ppm for Cr, 18-356 ppm for Cu, 15-342 pm for Ni, 90-513 ppm for V, 35-536 ppm for Zn, 80-469 ppm for Zr and 266-3,161 ppm for Sr. The tropical alteration of the ore waste plays an important role in the distribution of trace elements in the studied soils. Because the alteration affects the element mobility, generally old abandoned mining areas, which , together with soils near the transport routes, show a higher degree of contamination. Under low pH and oxidising conditions in studied soils Cd, Ni and Zn are generally easily mobilised and are thus...
Tipo: Journal Contribution Palavras-chave: Heavy metals; Mining; Phosphorite; Pollution; Heavy metals; Pollution; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_6077.
Ano: 2002 URL: http://hdl.handle.net/1834/2715
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Distribución de metales en sedimentos costeros del golfo de Guacanayabo OceanDocs
Arencibia Carballo, G.; Isaac, M.; González, H..
Of great importance to our country economy in the coastal zone running along the Gulf of Guacanayabo because of the different species nurseries having commercial interest. Studies on Al, Pb, Zn, and Cu contents within the surface sediments along 210 km of coastal areas, where 42 stations were located are carried out in the work. Results obtained are used for distribution analysis of elements within the zone and their relationships with the domestic and industrial population groups.
Tipo: Journal Contribution Palavras-chave: Heavy metals; Sediments; Coastal zone; Heavy metals; Http://aims.fao.org/aos/agrovoc/c_2223.
Ano: 1988 URL: http://hdl.handle.net/1834/1883
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Evaluación de las zonas con impacto antrópico del Golfo de Batabanó, Cuba. Empleo de indices de calidad OceanDocs
Martínez Canals, M.; Montalvo, J.F.; Miravet, M.E.; Lugioyo, M.; Loza, S.; Pérez, R..
The evaluation of the possible environmental changes due to the anthropic impacts that have happened in the last years in this scenario and the redefinition of areas that suffer affectations were carried up. Any environmental alteration of this ecosystem, either of natural or human origin, can have an important economic and social repercussion. According to the proposed chemical and biological indexes, the waters of the Gulf of Batabanó presented mesotrophic conditions with tendency to the eutrofization in four fundamental areas. In the silts of the Gulf the values of organic carbon and sulphidric acid were characteristic of sediments with high concentrations of organic matter. In the coastal sector N, was determinate high concentrations of sulphidric acid...
Tipo: Conference Material Palavras-chave: Heavy metals; Environmental impact; Coastal waters; Water quality; Man-induced effects; Marine pollution; Heavy metals; Environmental impact; Water quality; Coastal waters; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_25205.
Ano: 2006 URL: http://hdl.handle.net/1834/2254
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Distribución del mercurio total en pescados y mariscos del Mar Argentino. OceanDocs
Pérez, A.; Moreno, V.J.; Aizpun, J.E.; Malaspina, A.M..
Fish and shellfish samples for total mercury analysis were provided by the local fish export industry. Data collected through the years 1981-83 are processed and information was obtained on actual total mercury values in edible muscle of sampled species. On the basis of these results, future trends in mercury concentration values are hoped to be predicted. The authors suggest a revision of standards in force at present and the proposal of new ones, taking into account species involved and size of specimens.
Tipo: Journal Contribution Palavras-chave: Heavy metals; Mercury; Pollution monitoring; Fishery products; Marine fish; Shellfish; Heavy metals; Fishery products; Shellfish; Mercury; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_2941; Http://aims.fao.org/aos/agrovoc/c_7033; Http://aims.fao.org/aos/agrovoc/c_4751.
Ano: 1986 URL: http://hdl.handle.net/1834/2033
Registros recuperados: 25
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