Results 121 to 130 of about 319,237 (287)

The Effects of Grass Carp on Aquatic Plants, Plankton and Benthos in Ponds [PDF]

open access: yes, 2004
The effects of the grass carp (Ctenopharyngodon idella Val.)on aquatic plant biomass, water quality, phytoplankton, chlorophyll a, zooplankton and benthic fauna were investigated between May and September 2000 in earthen ponds at Cifteler- Sakaryabasi
Demir, N., Kirkagac, Mine
core  

Phytoplankton periodicity: its motivation, mechanisms and manipulation [PDF]

open access: yes, 1982
This review summarizes some recent work to find a generalized explanation of phytoplankton periodicity in lakes. Much of the observational and experimental evidence is drawn from work centred on the large enclosures (Lund Tubes) installed in Blelham Tarn,
Reynolds, C.S.
core  

Phytoplankton and nutrient analysis of a nuclear fuel-storage pond at Sellafield [PDF]

open access: yes, 2007
Summary •The aim of the project was to identify and enumerate phytoplankton cells and analyse phosphate and nitrate concentrations in samples from a nuclear fuel-storage pond from Sellafield.
Groben, R.
core  

Nitrate, Phosphate, Silica and Phytoplankton Abundance in the Coastal Waters of Maitara Island, North Maluku

open access: yesOmni-Akuatika
Nitrate, phosphate, and silica are nutrients needed for the growth of phytoplankton populations. The primary objective of the present study was to establish the relationship between the nutrient composition (nitrate, phosphate, and silica) and ...
Mesrawaty Sabar   +5 more
doaj   +1 more source

The significance of sedimentation and sediments to phytoplankton growth in drinking-water reservoirs [PDF]

open access: yes, 1992
In the mesotrophic-eutrophic Saidenbach Reservoir in Saxony, the nanoplankton and cyanobacteria have increased at the expense of diatom dominance, due to a doubling of the external phosphorus load in the last 15 years.
Horn, H., Uhlmajnn, D.
core  

Microcystins in components of twelve New Hampshire lakes of varied trophic status [PDF]

open access: yes, 1999
Cyanobacteria toxins, called microcystins (MCs), were found in components of twelve, stratified New Hampshire (USA) lakes of varied trophic status during the summer of 1998.
Johnson, Kimberly M.
core   +1 more source

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