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organic matter

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Journal Article
Aquatic Ecosystem Health & Management (2003) 6 (4): 391–396.
Published: 01 December 2003
... taken into account with bioassays. However, organic matter of the sediments can modify chemical partitioning and toxicity of these non-polar organic contaminants. The purpose of this study was to assess the influence of both quality and quantity of organic matter on the bioavailability of phenanthrene...
Journal Article
Aquatic Ecosystem Health & Management (2002) 5 (3): 307–313.
Published: 01 September 2002
... lake could seriously alter the cycling of carbon. Copyright © AEHMS 2002 The relationship between organic matter, invertebrates, and bacteria in the sediments of Lake Malawi Patrick Buat,1 Patricia S. Ramlal,2¤ and Stephanie J. Guildford3 1Department of Zoology, University of Dublin, Trinity...
Journal Article
Aquatic Ecosystem Health & Management (2000) 3 (1): 163–166.
Published: 01 January 2000
...T. Naganuma; I. Fukai; Y. Murakami; T. Nakane; S. Sukizaki Abstract The effect of ultraviolet irradiation on diatom-derived dissolved organic matter used as a bacterial growth substrate was investigated. The dissolved organic matter fraction of 100–1000 daltons (low molecular weight) was prepared...
Journal Article
Aquatic Ecosystem Health & Management (2000) 3 (3): 359–368.
Published: 01 January 2000
.../formulated sediment laboratory microcosms was monitored in 4-week tests. In a first experiment, the influence of various organic matter compositions (cellulose + TetraMin ® , cellulose + spirulin + meat extract, peat moss + TetraMin ® ) on bacterial communities was studied. In a second experiment, the effect...
Journal Article
Aquatic Ecosystem Health & Management (2010) 13 (2): 185–195.
Published: 28 May 2010
... environmental conditions and global biogeochemical cycles. Changes in the optical conditions in these lakes have direct impacts on ecosystem productivity, carbon dynamics and nutrient availability. A central role in the underwater light climate is played by dissolved organic matter which is present in all...
Journal Article
Aquatic Ecosystem Health & Management (2016) 19 (4): 345–354.
Published: 01 October 2016
... size, and organic matter. The mean concentrations of all the elements in both seasons (dry and wet) at Pattani Bay were higher than those in the Seitu Wetlands. High levels of As were detected in both seasons, but they were classified as moderately polluted in the dry season. The Enrichment Factor in...
Journal Article
Aquatic Ecosystem Health & Management (2007) 10 (1): 69–85.
Published: 01 March 2007
...Margaret S. Chen; Stanislas Wartel; Les M. Lavkulich; Willy Baeyens; Leo Goeyens; Natacha Brion Organic matter (OM) and dissolved inorganic nitrogen (DIN: nitrite, nitrate and ammonium) in the sediments as well as in the water column of two temperate estuaries, the Scheldt Estuary in Belgium and...
Journal Article
Aquatic Ecosystem Health & Management (2013) 16 (1): 70–77.
Published: 02 January 2013
.... V.K. 2003b . Measuring the bioavailability of two hydrophobic organic compounds in the presence of dissolved organic matter . Environ. Toxicol. Chem. , 22 : 518 – 524 . Borchert , J. , Karbe , L. and Westendorf , J. 1997 . Uptake and metabolism of benzo[ a ]pyrene...
Journal Article
Aquatic Ecosystem Health & Management (2014) 17 (3): 261–270.
Published: 03 July 2014
...Fenfen Liu; Shilin Tang; Chuqun Chen The present study aims to investigate the temporal variability of chromophoric dissolved organic matter through remote sensing and to determine its influence factors in the Pearl River Estuary. A medium resolution imaging spectrometer, chromophoric dissolved...
Includes: Supplementary data
Image
Published: 01 March 2007
Figure 2. Scatterplot of MGS (μm) versus organic matter content (%). More
Image
Published: 01 March 2007
Figure 3. Organic matter content (% of dry weight) in the sediments (low runoff period: solid line; high runoff period: dotted line). More
Image
Published: 08 June 2007
Figure 3. Organic matter content (dry weight %) in the sediments. Solid lines indicate low runoff, and dotted lines indicate high runoff. More
Image
Published: 26 February 2010
Figure 1. Temporal variations in the relationship between N and organic matter concentrations in the surface sediment of Laguna Honda and Laguna Nueva. More
Image
Published: 01 March 2007
Figure 2. Percent organic matter (LOI = loss on ignition) compared to percent clay (sediment fraction < 2 μ m). More
Image
Published: 10 March 2008
Figure 1. The Natural Biological Mineralization Route (NBMR) of organic matter as it proceeds in polluted environments. More
Journal Article
Aquatic Ecosystem Health & Management (2012) 15 (2): 234–240.
Published: 01 April 2012
...Yongli Gao; Kedong Yin; Lei He; Paul J. Harrison Trash fish is common feed for caged fish in marine aquaculture. Most feed is not eaten and enters the water surrounding fish farms. The organic matter in trash fish is a nutrient source contributing to aquatic eutrophication impacts such as algal...
Journal Article
Aquatic Ecosystem Health & Management (2004) 7 (4): 451–464.
Published: 01 October 2004
... dominance of microbial biomass and dissolved organic carbon in biogeochemical processes. Photo-autotrophy is the dominant source of reduced organic matter in the lake. Areal rates of primary production are among the lowest measured in any aquatic system, and are likely a result of cold water temperatures...
Journal Article
Aquatic Ecosystem Health & Management (2016) 19 (4): 468–475.
Published: 01 October 2016
... 2012. Crabs dominated the catches, constituting 37% of the total biomass in the inner estuary and 45% in the outer estuary. The δ 15 N and δ 13 C values for particulate organic matter gradually changed from the inner to the outer estuary. δ 15 N of particulate organic matter was more enriched in the...
Includes: Supplementary data
Journal Article
Aquatic Ecosystem Health & Management (2007) 10 (1): 33–40.
Published: 01 March 2007
... subjected to quickly changing environmental conditions governed by alternating low and high tides. We studied the effects of various influencing factors, such as hydraulic regime, organic matter and salinity on metal mobility and bioavailability in the superficial calcareous intertidal sediment layer of the...
Journal Article
Aquatic Ecosystem Health & Management (2014) 17 (3): 280–289.
Published: 03 July 2014
... the lake during all seasons, and found that the absorption coefficient of suspended matter, chlorophyll, and colored dissolved organic matter of the near-infrared band may approximate zero. Based on this analysis, we found that a single band method of retrieving concentration using the near-infrared...