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Metal toxicity

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Journal Article
Aquatic Ecosystem Health & Management (2000) 3 (3): 277–289.
Published: 01 January 2000
... and demonstration of toxicity in environmental samples often occur at sites with elevated metal concentrations, but this does not prove that metals are actually responsible for these effects. Correlation is not proof of cause and effect. Metal-induced biological effects cannot usually be inferred from measured...
Journal Article
Aquatic Ecosystem Health & Management (2005) 8 (3): 313–322.
Published: 01 July 2005
...P. F. Silvério; A. L. Fonseca; C. M. R. Botta-Paschoal; A. A. Mozeto Bioavailability and toxicity of metals in sediment were assessed in three water bodies in the State of São Paulo, SE Brazil, in one of the first investigations of the topic in the country. Weakly bound metals in bulk sediment...
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Journal Article
Aquatic Ecosystem Health & Management (2009) 12 (4): 456–460.
Published: 30 November 2009
... AEHMS 2009 metals watersheds lake sediments ecosystems aquatic Cu is an essential nutrient element to aquatic organisms. However, it can cause toxicity at elevated concentration ( Santore et al., 2001 ). Both oxidation states, Cu 1 + and Cu 2 + can exist in aqueous systems, although...
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Journal Article
Aquatic Ecosystem Health & Management (2005) 8 (4): 405–414.
Published: 01 October 2005
... treatments, at the end of the assays: 25.9 μ g Cu l −1 for P2-4.0%; 47.1 μ g Cu l −1 for P2-8.0% and 19.4 μ g Cu l −1 for P3-8.0% ( Figure 1 ). As a consequence, Cu was probably responsible for those chronic effects. Other metals were not expected to be toxic for daphnids at the concentrations measured...
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Journal Article
Aquatic Ecosystem Health & Management (2000) 3 (2): 249–257.
Published: 01 January 2000
... phytoplankton size assemblages to metal toxicity . Arch. Hydrobiol. Beih. Ergebn. Limnol. , 25 : 120 – 139 . Munawar , M. , Munawar , I.F. , Mayfield , C.I. and McCarthy , L.H. 1989 . Probing ecosystem health: a multidisciplinary and multi-trophic assay strategy . Hydrobiologia...
Journal Article
Aquatic Ecosystem Health & Management (2004) 7 (3): 375–386.
Published: 01 July 2004
.... The results from the Toxicity Identification Evaluation tests pointed towards heavy metals as the cause of toxicity, and the analytical results of heavy metals in the water phase showed that the concentrations of six metals (Cd, Co, Mn, Ni, Pb and Zn) were significantly correlated with toxicity...
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Journal Article
Aquatic Ecosystem Health & Management (1998) 1 (3-4): 323–332.
Published: 01 January 1998
... about effects of toxicants on Mexican aquatic ecosystems. Copyright Elsevier Science Ltd and the Aquatic Ecosystem Health & Management Society 1998 Zooplankton dynamics Ecotoxicology Metal toxicity References Anonymous, Standard Methods for the Examination of Water and Wastewater...
Journal Article
Aquatic Ecosystem Health & Management (2008) 11 (4): 432–440.
Published: 09 December 2008
... content Zn is an essential element ( Wu and Chen, 2004 ; Gioda et al., 2007 ), but it may also become toxic to some species at ecologically relevant concentrations ( Elumalai et al., 2007 ). Thus, Vesela and Vijverberg (2007) showed this metal reduces body size and elicits shape alterations...
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Journal Article
Aquatic Ecosystem Health & Management (1999) 2 (3): 281–288.
Published: 01 January 1999
... are increasingly used as sensitive indicators of pollutant toxicity, since they are rapid, inexpensive, applicable to a variety of toxicants and allow several acute and chronic endpoints to be assessed simultaneously. The analysis of the potential toxicity of heavy metals was conducted on two aquatic model systems...
Journal Article
Aquatic Ecosystem Health & Management (2010) 13 (3): 335–341.
Published: 31 August 2010
.... 2001 . Primary biodegradation of veterinary antibiotics in aerobic and anaerobic surface water simulation systems . Chemosphere , 44 ( 4 ): 865 – 872 . Kakkar , P. and Jaffery , F. N. 2005 . Biological markers for metal toxicity . Environmental Toxicology and Pharmacology...
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Journal Article
Aquatic Ecosystem Health & Management (1999) 2 (1): 1–8.
Published: 01 January 1999
... to a few in regard to toxicant sensitivity. There is a wide range grab samples are representative of actual organism of species sensitivity to metal and organic chemicals. exposures in situ. Unfortunately, toxicity information only exists for a minuscule fraction of the 1.5 to 100 million species...
Journal Article
Aquatic Ecosystem Health & Management (2005) 8 (1): 33–40.
Published: 01 January 2005
... detailed bathymetric surveys, sediment dating with 137 Cs, chemical and mineralogical characterization of sediments to three meters depth, analysis of recent sediments (to 30 cm depth) for acid-volatile sulfide and simultaneously extracted metals, and analysis of ammonia and toxic metals in sediment pore...
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Journal Article
Aquatic Ecosystem Health & Management (2001) 4 (3): 263–274.
Published: 01 September 2001
... and bad quality). Three major threats to the marine environment are eutrophication, toxic organic pollutants/metals and physical disturbance (exploitation of the coast). The parameters used to assess eutrophication are concentrations of nitrogen, phosphorus and silica, Secchi depth, concentration...
Journal Article
Aquatic Ecosystem Health & Management (2002) 5 (4): 403–410.
Published: 01 December 2002
.... , Healey , F. P. and Wagemann , R. 1984 . Metal toxicity to algae: A highly pH dependent phenomenon . Can. J. Fish. Aquat. Sci. , 41 : 974 – 979 . Reynolds , C. S. 1980 . Phytoplankton communities and their periodicity in stratifying lake systems . Hol. Ecol. , 3 : 141...
Journal Article
Aquatic Ecosystem Health & Management (2013) 16 (1): 78–87.
Published: 02 January 2013
... in the soft tissue of S. cucullata. The ratio of La/Yb in the oyster of 27.3 was remarkably similar to Terengganu River basin soil of 33.0 and to Terengganu River sediment of 27.6. Comparison of metal concentration with maximum permissible limits of toxic metals in food established in different countries...
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Journal Article
Aquatic Ecosystem Health & Management (2004) 7 (3): 357–368.
Published: 01 July 2004
... after filtration, indicating that suspended particulates and associated contaminants were a significant source of toxicity. Subsequent treatments with column extraction and ethylene diamine tetra amino acid reduced toxicity, indicating both organics and metal constituents of pore waters as contributors...
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Journal Article
Aquatic Ecosystem Health & Management (1999) 2 (1): 9–18.
Published: 01 January 1999
...J. de Jonge; J.M. Brils; A.J. Hendriks; W.C. Ma Abstract Floodplains of the rivers Rhine and Meuse in the Netherlands are moderately polluted with heavy metals and toxic compounds. In these floodplain areas a number of nature rehabilitation programmes are being planned and executed. The question...
Journal Article
Aquatic Ecosystem Health & Management (1999) 2 (4): 347–360.
Published: 01 January 1999
... sediment concentrations of contaminants (heavy metals, organochlorines and polyaromatic hydrocarbons) at 25 of these 120 sites were tested for correlation with sediment toxicity, but no correlations, or rather weak ones, were found. Further, the concentrations of single contaminants were usually below...
Journal Article
Aquatic Ecosystem Health & Management (1999) 2 (4): 379–389.
Published: 01 January 1999
...Ann-Sofie Wernersson; Göran Dave; Eva Nilsson Abstract Sediments from 48 sites along the Swedish West Coast were sampled for determination of priority pollutants (metals, polycyclic aromatic hydrocarbons and chlorinated hydrocarbons). Toxicity to two crustaceans ( Daphnia magna and Nitocra spinipes...
Journal Article
Aquatic Ecosystem Health & Management (2000) 3 (3): 301–316.
Published: 01 January 2000
... and heavy metals and by measuring toxicity of sediment samples to Daphnia magna, Nitocra spinipes, Chironomus riparius and Hyalella azteca . The combined exposure to several contaminants and solar light can enhance toxic effects, and since Torsviken is a shallow bay (maximum depth 2 m), organisms surviving...