搜索结果: 1-15 共查到“Macrophyte”相关记录15条 . 查询时间(0.162 秒)
Continental-scale effects of phytoplankton and non-phytoplankton turbidity on macrophyte occurrence in shallow lakes
lakes phytoplankton biological
2021/7/23
Submerged macrophytes are key components of shallow lake biological communities, and their presence has been associated with a predominantly clear-water state.
Integration of multispectral satellite and hyperspectral field data for aquatic macrophyte studies
Aquatic macrophytes Spectral analysis Principal Component analysis Hyperspectral Vegetation indices
2014/12/15
Aquatic macrophytes (AM) can serve as useful indicators of water pollution along the littoral zones. The spectral signatures of various AM were investigated to determine whether species could be discr...
The role of hydrodynamics in structuring in situ ammonium uptake within a submerged macrophyte community
nutrients water fl ow patchiness Cymodocea nodosa Caulerpa prolifera
2014/4/1
In low-nutrient, macrophyte-dominated coastal zones, benthic ammonium (NH4
+
) uptake may be influenced by the structural properties of plant canopies via their effect on near-bed hydrodynamic...
Diffusive boundary layers do not limit the photosynthesis of the aquatic macrophyte Vallisneria americanaat moderate flows and saturating light levels
Diffusive boundary layers do not limit the photosynthesis the aquatic macrophyte Vallisneria americana moderate flows saturating light levels
2014/4/17
Hydrodynamic models of mass transport assume that diffusive processes next to the surface limit transport and that there are no biological and chemical processes that control the supply and demand of ...
How anthropogenic darkening of Lake Apopka induced benthic light limitation and forced the shift from macrophyte to phytoplankton dominance
Lake Apopka induced benthic light limitation forced the shift macrophyte to phytoplankton dominance
2014/4/17
Controversy exists about the historic shift of primary producer community structure (PPCS) in Lake Apopka,a shallow, 125-km2lake in central Florida, U.S.A. The controversial questions are: was a lake-...
Relationship between dissolved oxygen concentration of bottom water and macrophyte biomass in the southern basin of Lake Biwa, Japan
dissolved oxygen submerged macrophyte southern basin of Lake Biwa
2009/4/2
The horizontal distribution of dissolved oxygen (DO) concentrations on the lake bottom was investigated on September 2-5, 2002. At 36 out of the 84 sites, DO concentrations were at less than 50% of sa...
Water quality of macrophyte habitats in rural Japan
macrophyte water quality growth form canonical correspondence analysis (CCA)
2009/3/11
This study is intended to clarify the effects of water quality on the ecological distribution of macrophytes. We studied the water quality of macrophyte habitats at 263 sites (106 cities) in rural J...
Long-term changes in abundance and diversity of macrophyte and waterfowl populations in an estuary with exotic macrophytes and improving water quality
Long-term changes in abundance diversity of macrophyte waterfowl populations in an estuary exotic macrophytes improving water quality
2014/4/22
We assessed species-specific coverage (km2) of a submerged aquatic vegetation (SAV) community in the fresh and upper oligohaline Potomac Estuary from 1985 to 2001 using a method combining field observ...
EFFECT OF PYRIDINE AND FORMALDEHYDE ON A MACROPHYTE (LEMNA MINOR L.) AND A SLUDGE WORM (TUBIFEX TUBIFEX MÜLLER) IN FRESH WATER MICROCOSMS
Lemna minor L. Tubifex tubifex Müller formaldehyde pyridine toxicity microcosms
2010/3/25
Pyridine, a suspected genotoxic and formaldehyde, a potent carcinogen, are present in several
industrial wastewater including commercial solvent, resin and pesticide manufacturing industries. The ext...
Investigating the use of macrophyte stable C and N isotopic ratios as indicators of wetland eutrophication: Patterns in the P-affected Everglades
macrophyte stable C N isotopic ratios wetland eutrophication Patterns in the P-affected Everglades
2014/5/5
We investigated the use of stable C and N isotopic ratios as indicators of shifts in nutrient limitation of aquatic macrophytes in native Typha (Typha domingensis Pers.) and Cladium (Cladium jamaicens...
The effect of hydrodynamics on the mass transfer of dissolved inorganic carbon to the freshwater macrophyte Vallisneria americana
hydrodynamics dissolved inorganic carbon
2014/5/5
The combined effects of water velocity (U) and dissolved inorganic carbon (DIC) concentration on
photosynthesis rates of Vallisneria americana were investigated. The net photosynthesis rate or O2 flu...
The lethal and sublethal effects of the aquatic macrophyte Myriophyllum spicatum on Baltic littoral planktivores
The lethal and sublethal effects macrophyte Myriophyllum spicatum Baltic littoral planktivores
2014/5/9
Macrophyte architecture can structure predator-prey interactions, but it is the chemicals within the plant that may actually be lethal. We conducted aquarium experiments to study the effects of common...
The role of submerged macrophyte beds in phosphorus and sediment accumulation in Lake Memphremagog, Quebec, Canada
submerged macrophyte beds phosphorus and sediment accumulation Lake Memphremagog Quebec Canada
2014/5/21
The relationships between long-term (~115-year) phosphorus and sediment accumulation and submerged macrophyte biomass were determined both within a submerged macrophyte bed and among beds in Lake Memp...
Hydrologic and hydraulic control of macrophyte establishment and performance in streams
macrophyte establishment streams
2014/5/21
Macrophytes play a key role in many unshaded lotic ecosystems, but little is known of the factors controlling
their presence, abundance, and composition. Macrophyte abundance, diversity, and composit...
Macrophyte-dominated Clearwater State of Lake Mogan
Alternative stable states shallow lake submerged plant zooplankton grazing wetland
2010/3/31
In this study, the water chemistry and zooplankton community of Lake Mogan studied between March 1997 and April 1998. Small-scale industries, crop-farming, urban settlement of the municipality of G&ou...