1-20 of 231 Search Results for

Phytoplankton volume

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Aquatic Ecosystem Health & Management (1998) 1 (1): 1–24.
Published: 01 January 1998
... and AEHMS. All rights reserved. Keywords: Phosphorus; Primary production; Eutrophication; Phytoplankton volume *Corresponding author. 1463-4988/98/$19.00 © 1998 Elsevier Science Ltd and AEHMS. All rights reserved. PII: S1463-4988(98)00003-7 2 L. Hgtkanson, L. Carlsson/Aquatic E osystem Health and...
Journal Article
Aquatic Ecosystem Health & Management (2006) 9 (3): 365–378.
Published: 01 September 2006
...David Rissik; Maria Doherty; David van Senden Tidal flushing, primary production and phytoplankton and zooplankton communities were investigated to establish the processes leading to persistently high levels of phytoplankton (in excess of 15 to 60 μg l −1 chlorophyll a) in a particular reach of...
Journal Article
Aquatic Ecosystem Health & Management (2017) 20 (4): 369–377.
Published: 02 October 2017
... ). Ballast water is recognized as a major vector for the introduction of zooplankton, phytoplankton, fishes, bacteria and viral particles (Carlton, 2010 ). Large volumes of ballast water imply high potential propagule pressure (PP) and/or colonization pressure (CP) (number of organisms and species released...
Journal Article
Aquatic Ecosystem Health & Management (2001) 4 (2): 123–138.
Published: 01 June 2001
... featured algal blooms, while many lakes had primary production value <1000 mg C m -2 d -1 . Algae of size >10 µm represented about 50 percent of the chlorophyll biomass and phytoplankton production. Classification on hydrological and particle data identified five groups based on depth, turbidity and...
Journal Article
Aquatic Ecosystem Health & Management (2000) 3 (1): 1–21.
Published: 01 January 2000
... phytoplankton i the 90% of the world's aggregate lake volume that is stored in its largest lakes (Herden- doff, 1982) are scarcely known at all. In this article, we seek to align some of the infor- mation which is available about the composition, productivity and seasonality of phytoplankton i a selection of...
Journal Article
Aquatic Ecosystem Health & Management (2018) 21 (2): 213–226.
Published: 03 April 2018
... colony was determined. Cell volume was converted to wet biomass assuming a specific gravity of 1.0 (Strickland, 1960 ). Size fractionated primary productivity was estimated for three size categories of phytoplankton (<2 μm, 2–20 μm and >20 μm) by the 14 Carbon technique as per the standard...
Includes: Supplementary data
Journal Article
Aquatic Ecosystem Health & Management (2002) 5 (1): 31–43.
Published: 01 March 2002
...<0.02 ns ns Mean cladoceran body weight ns p<0.02 ns ns p<0.0006 p<0.0003 ns ns Zooplankton: phytoplankton by weight p<0.03 p<0.05 ns p<0.008 p<0.03 p<0.02 ns ns Phytoplankton share of total volume Non-heterocystous cyanobacteria p<0.0001 p<0.005 ns p<0.0007 p<0.0006 p<0.004 ns ns Heterocystous...
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 (2004) 7 (4): 515–528.
Published: 01 October 2004
...Meredith Becker Nevers; Richard L. Whitman Phytoplankton species have been widely used as indicators of lake conditions, and they may be useful for detecting changes in overall lake condition. In an attempt to inventory and monitor its natural resources, the National Park Service wants to establish...
Journal Article
Aquatic Ecosystem Health & Management (2012) 15 (2): 200–209.
Published: 01 April 2012
... phytoplankton and low in those dominated by small-sized phytoplankton (Cermeño et al., 2005 ). The Yangtze River (YR), about 6300 km long, and flowing into the East China Sea (ECS), ranks third in the world in terms of discharge volume (Ning et al., 1988 ). It provides 85% of the freshwater runoff to the...
Journal Article
Aquatic Ecosystem Health & Management (1998) 1 (3-4): 257–266.
Published: 01 January 1998
... in 1981 and 1983; biannual sampling was then conducted in the stratification and circulation periods for 10 years (1984–1994) in order to determinate the seasonal and annual successional patterns of the phytoplankton community. Thermal behaviour was found to influence both physical and chemical...
Journal Article
Aquatic Ecosystem Health & Management (2003) 6 (3): 263–278.
Published: 01 September 2003
... light microscope (Olympus IMT-2) using the standard Utermo¨hl (1958) technique. For phyto- plankton counts, 50 ml of each sample was allowed to settle. Phytoplankton were identified to species level whenever possible. Phytoplankton abundances were transformed into biomasses using appropriate volume...
Journal Article
Aquatic Ecosystem Health & Management (2003) 6 (2): 105–117.
Published: 01 April 2003
.... Environmental Indicators Monitoring Report & Special Objectives Statement. Sydney Water Annual Environ- ment Report Auxiliary volume. Sydney Water Corp. Taylor, F. J. R., 1990. Red tides, brown tides and other harmful algal blooms: The view into the 1990 s. In: E. Graneli (Ed Toxic Marine Phytoplankton, pp. 527...
Journal Article
Aquatic Ecosystem Health & Management (2017) 20 (3): 201–213.
Published: 03 July 2017
... Concern under the terms of the Great Lakes Water Quality Agreement between Canada and the United States. This study examines the ecology of the phytoplankton communities at one centrally located station during the ice-free period (May–October) of three non-consecutive years: 2002, 2004 and 2006. This was...
Includes: Supplementary data
Journal Article
Aquatic Ecosystem Health & Management (2008) 11 (4): 422–431.
Published: 09 December 2008
...Michael R. Twiss; Ian R. MacLeod Coastal inputs of nutrients and contaminants impact phytoplankton community composition and health in localized and large areas of coastal Lake Ontario. Advanced fluorimetric instrumentation (Fast Repetition Rate Fluorimeter [FRRF], FluoroProbe) was used during June...
Journal Article
Aquatic Ecosystem Health & Management (2015) 18 (2): 212–220.
Published: 03 April 2015
... categorized as either closed bays (ratio of bay area to bay opening &lt;1) or open bays (ratio ≥1) and sampled during November and December 2009. Water samples were analyzed for total phosphorus, chlorophyll a , phytoplankton community composition and concentrations of microcystin. Open and closed bays were...
Includes: Supplementary data
Journal Article
Aquatic Ecosystem Health & Management (2010) 13 (2): 154–163.
Published: 28 May 2010
... conditions, the absolute range is as high as 3.1 m, corresponding to a 1.4-fold difference in the lake area, a 2.3-fold difference in the mean depth, and a 3.2-fold difference in the volume ( Nõges et al., 2003 ). Figure 1. Seasonal dynamics of (A) water level and (B) phytoplankton biomass in Lake...
Journal Article
Aquatic Ecosystem Health & Management (2014) 17 (3): 221–232.
Published: 03 July 2014
...Dongyang Fu; Delu Pan; Difeng Wang; Ying Zhang; Youzhuan Ding; Dazhao Liu The Yangtze River Estuary and the Zhejiang coastal waters have a high incidence of spring phytoplankton bloom and even red tide, but there are rarely phytoplankton blooms in the open waters off the Yangtze River Estuary in...
Journal Article
Aquatic Ecosystem Health & Management (2008) 11 (1): 78–90.
Published: 10 March 2008
... and Stevenson, 1989 ; Perry et al., 1990 ). Additionally, changes in phytoplankton diversity can be dependent on the availability of growth limiting resources. The basic idea is that increasing resources can support additional species in aquatic systems. However, the rapid colonization and resource...
Journal Article
Aquatic Ecosystem Health & Management (2018) 21 (4): 421–437.
Published: 02 October 2018
... 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, but...