搜索结果: 1-9 共查到“海洋科学 macrophyte”相关记录9条 . 查询时间(0.062 秒)
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-...
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...
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...