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Nutrient

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Journal Article
Aquatic Ecosystem Health & Management (2002) 5 (3): 363–377.
Published: 01 September 2002
...Külli Kangur; Anu Milius; Tõnu Möls; Reet Laugaste; Juta Haberman In the 1990s, as a consequence of a decline in agricultural production in the watershed and a decrease in the amount of waste water discharged into rivers, the nutrient load carried from the catchment area into large, shallow...
Journal Article
Aquatic Ecosystem Health & Management (2003) 6 (2): 105–117.
Published: 01 April 2003
...T. R. Pritchard; R. S. Lee; P. A. Ajani; P. S. Rendell; K. Black; K. Koop Reports of visible algal blooms have increased in New South Wales (NSW) coastal waters since 1990. Our three-year, multi-disciplinary study assessed the relative importance of natural and anthropogenic nutrients...
Journal Article
Aquatic Ecosystem Health & Management (2015) 18 (3): 334–341.
Published: 03 July 2015
... to those of the native fauna or flora. Using examples of altered nutrients in aquatic environments, the effects of environment on the success of harmful algae are herein considered. Many harmful algae are introduced species, especially via ballast water. While increasing numbers and frequency of harmful...
FIGURES
Journal Article
Aquatic Ecosystem Health & Management (2000) 3 (1): 35–45.
Published: 01 January 2000
...S.J. Guildford; H.A. Bootsma; E.J. Fee; R.E. Hecky; G. Patterson Abstract Phytoplankton growth in Lake Malawi was moderately nitrogen and phosphorus-deficient according to indicators of phytoplankton nutrient status (particulate C:N, C:P, N:P composition ratios, nitrogen and phosphorus debt assays...
Journal Article
Aquatic Ecosystem Health & Management (2001) 4 (1): 33–49.
Published: 01 April 2001
... of the southern Black Sea. Silicon concentration also influenced the phytoplankton growth since the majority of the population was determined to be diatoms. The dynamics of nutrient enrichment and primary production related to recent changes in the ecosystem of the Black Sea M. Yayla1, A. Yilmaz1*, E. Morkoc2...
Journal Article
Aquatic Ecosystem Health & Management (2005) 8 (2): 133–145.
Published: 01 April 2005
...T. Mayer; F. Rosa; M. Charlton Although there has been reduction in nutrient loadings from external sources, high nutrient levels and a prolific algal growth remain major stresses, affecting the water quality in Cootes Paradise, a coastal wetland at the western tip of Lake Ontario. It has been...
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Journal Article
Aquatic Ecosystem Health & Management (2005) 8 (4): 397–403.
Published: 01 October 2005
...Sergi Sabater; Vicenç Acuña; Adonis Giorgi; Helena Guasch; Elena Guerra; Isabel Muñoz; Anna M. Romaní Two different streams receiving high nutrient content were compared in relation to evidence provided by structural (biomass) and functional (community metabolism) descriptors. The first (Gaià...
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Journal Article
Aquatic Ecosystem Health & Management (2006) 9 (1): 27–32.
Published: 01 January 2006
... of nutrients in soil on sloping lands influenced by natural and artificial factors. Results showed that the rainfall intensity had a small influence on nutrient concentrations in runoff, but a significant influence on the runoff flow on sloping lands. The slope length influenced the nutrient loss by soil...
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Journal Article
Aquatic Ecosystem Health & Management (2010) 13 (2): 143–153.
Published: 28 May 2010
... annual amount of precipitation in the catchment increased significantly. Reflecting practices in agriculture and wastewater treatment, nutrient loadings to the lakes increased rapidly in the 1980s and decreased again in the early 1990s. As total nitrogen (TN) loading decreased faster than total...
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Journal Article
Aquatic Ecosystem Health & Management (2018) 21 (2): 185–192.
Published: 03 April 2018
...Maxon J. Ngochera; Harvey A. Bootsma Differences in chemical composition among zooplankton and their food sources can have important consequences for nutrient cycling in lakes. To date, studies of the interaction between plankton stoichiometry and nutrient cycling have focused primarily...
FIGURES
Journal Article
Aquatic Ecosystem Health & Management (2016) 19 (1): 49–57.
Published: 02 January 2016
... method for chlorophyll a in phytoplankton . Ecologic Science 24 ( 1 ), 9 – 11 , (in Chinese). Lürling , M. , Geest , G. , Scheffer , M. , 2006 . Importance of nutrient competition and allelopathic effects in suppression of the green alga scenedesmus obliquus by the macrophytes...
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Journal Article
Aquatic Ecosystem Health & Management (2008) 11 (1): 8–15.
Published: 10 March 2008
... was generally conducted twice a month and water samples were collected at 10 m intervals between 0 and 100 m depth and analyzed spectrophotometrically for dissolved inorganic nutrients. Physico-chemical parameters were determined during field work with specific probes, and further work was done...
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Journal Article
Aquatic Ecosystem Health & Management (1998) 1 (3-4): 345–351.
Published: 01 January 1998
...Eugenia López López; Laura Dávalos-Lind Abstract Algal bioassays to determine algal growth potential of waters and nutrient limitation were conducted using a standard test organism Selenastrum capricornutum and native phytoplankton from the sites sampled. The study site was the river-reservoir...
Journal Article
Aquatic Ecosystem Health & Management (1998) 1 (3-4): 373–385.
Published: 01 January 1998
...Jorge A. Herrera-Silveira Abstract Interactions between nutrient and biotic components of phytoplankton in Celestún lagoon, a groundwater-influenced tropical coastal lagoon were studied. Gradients of nutrients, chlorophyll a , phaeopigments, production and respiration rates were estimated from...
Journal Article
Aquatic Ecosystem Health & Management (1999) 2 (2): 115–127.
Published: 01 January 1999
...M.D. Matlock; D.E. Storm; M.D. Smolen; M.E. Matlock Abstract Nutrient limitations in three streams in the Upper Illinois River Basin in eastern Oklahoma (Peacheater, Tyner and Battle Creek) were measured using the Matlock periphytometer in April and September, 1995. The Matlock periphytometer...
Journal Article
Aquatic Ecosystem Health & Management (2012) 15 (4): 370–384.
Published: 01 December 2012
... in the context of key stressors up to 2009. Excessive nutrient input and hyper-abundant non-native fish species, White Perch and Alewife, shaped the depreciated fish community of the 1970s. After implementation of phosphorus input control measures and simultaneous winter-kills of the hyper-abundant non-native...
FIGURES
Journal Article
Aquatic Ecosystem Health & Management (2018) 21 (4): 421–437.
Published: 02 October 2018
... of the phytoplankton communities in relation to nutrient (P,N,Si) regimes was undertaken during 2015 (Bay of Quinte) and 2016 (Hamilton Harbour and Toronto Harbour) in order to compare and contrast the dynamics of eutrophication in the three ecosystems. Bay of Quinte was found to be phosphorus and silica enriched...
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Image
Published: 01 April 2012
Figure 5. Spatial distribution of (a) phytoplankton (P); (b) nutrient (N); (c) photosynthetically active radiation (PAR) in the surface of Northern SCS from the model results. More
Image
Published: 02 January 2015
Figure 2. Algal biomass ( A ) as a function of (a–g) nutrient loading ( I N ) and (h, i) fish biomass ( F ), with the levels of omnivory ( w D ) and predation intensity ( f FZ ) marked in Figure 1c. Other parameters were equal to the default values. Solid and dashed lines represent stable More
Image
Published: 01 October 2005
Figure 2. Macroinvertebrate density before the nutrient addition (days 100, 75 and 0) and after nutrient addition (days 15, 30, 44, 60 and 105) for the different stream substrata analysed (cobbles and sand). NF = not fertilized reach, F = fertilized reach. Error bars = standard deviation. More