搜索结果: 1-15 共查到“海洋地球物理学 Nutrient”相关记录22条 . 查询时间(0.203 秒)
Nutrient availability affects the response of juvenile corals and the endosymbionts to ocean acidification
ocean acidification Juvenile coral
2014/10/16
The interactive effects of nutrient availability and ocean acidification on coral calcification were investigated
using post-settlement juvenile corals of Acropora digitifera cultured in nutrient-suf...
Like weeds of the sea, 'brown tide' algae exploit nutrient-rich coastlines（图）
brown tide sea nutrient-rich coastlines
2014/9/12
The sea-grass beds of Long Island’s Great South Bay once teemed with shellfish. Clams, scallops and oysters filtered nutrients from the water and flushed money through the local economy. But three dec...
Nutrient enrichment differentially affects body sizes of primary consumers and predators in a detritus-based stream
Nutrient enrichment differentially affects body sizes predators
2014/4/17
We assessed how a 5-yr nutrient enrichment affected the responses of different size classes of primary
consumers and predators in a detritus-based headwater stream. We hypothesized that alterations i...
Rates of overgrowth by macroalgae and attack by sea anemones are greater for live coral than dead coral under conditions of nutrient enrichment
Rates of overgrowth macroalgae attack
2014/4/18
A mesocosm experiment was conducted to determine the effects of nutrient enrichment on competitive
interactions between a hard coral, a green alga, and a sea anemone. In the low-nutrient controls, ab...
Benthic biogeochemical cycling, nutrient stoichiometry, and carbon and nitrogen mass balances in a eutrophic freshwater bay
Benthic biogeochemical cycling nutrient stoichiometry
2014/4/18
Green Bay, while representing only ,7% of the surface area and ,1.4% of the volume of Lake Michigan,
contains one-third of the watershed of the lake, and receives approximately one-third of the total...
Nutrient limitation of picophytoplankton photosynthesis and growth in the tropical North Atlantic
picophytoplankton photosynthesis growth in the tropical North Atlantic
2014/4/21
Identification of the proximal nutrient limiting primary production is a necessary first step toward evaluating
the physiological state of phytoplankton communities and the biogeochemical constraints...
Mechanisms for nutrient delivery to the inner shelf: Observations from the Santa Barbara Channel
Mechanisms for nutrient delivery Observations
2014/4/22
Oceanic sources of nutrients to the kelp forests of the Santa Barbara Channel were diagnosed using time series
from three moorings in 12- to 17-m water depth. An in situ nitrate autoanalyzer on the m...
Controls on spatial and temporal variation of nutrient uptake in three Michigan headwater streams
Controls on spatial nutrient uptake
2014/4/22
We measured whole-stream uptake of ammonium (NHz
4
), nitrate (NO{
3
), and phosphate (as soluble reactive
phosphorus [SRP]) in two reaches of three forested headwater streams eight times from Ma...
Discontinuities in stream nutrient uptake below lakes in mountain drainage networks
stream nutrient uptake Discontinuities
2014/4/22
In many watersheds, lakes and streams are hydrologically linked in spatial patterns that influence material
transport and retention. We hypothesized that lakes affect stream nutrient cycling via modi...
Nitrogen as the limiting nutrient for eutrophication in coastal marine ecosystems: Evolving views over three decades
Nitrogen marine ecosystems
2014/4/30
The first special volume of Limnology and Oceanography, published in 1972, focused on whether phosphorus
(P) or carbon (C) is the major agent causing eutrophication in aquatic ecosystems. Only ...
Phytoplankton response to nutrient enrichment in an urbanized estuary: Apparent inhibition of primary production by overeutrophication
Phytoplankton response nutrient enrichment
2014/4/30
Phytoplankton response to nutrients was examined with a 26-yr database from the Delaware Estuary. Biomassnormalized primary production did not increase linearly with increasing nutrient concentrations...
Relating precipitation and water management to nutrient concentrations in the oligotrophic ‘‘upside-down’’ estuaries of the Florida Everglades
Relating precipitation water management
2014/4/30
We present 8 yr of long-term water quality, climatological, and water management data for 17 locations in
Everglades National Park, Florida. Total phosphorus (P) concentration data from freshwater si...
Potamoplankton size structure and taxonomic composition: Influence of river size and nutrient concentrations
Potamoplankton size taxonomic composition
2014/4/30
We measured the size structure and taxonomic composition of phytoplankton in temperate rivers during base
flows of summer to investigate the influence of river size, ambient nutrient conc...
Nutrient and light availability regulate the relative contribution of autotrophs and heterotrophs to respiration in freshwater pelagic ecosystems
Nutrient light availability regulate the relative contribution
2014/4/23
In this study, two main hypotheses were addressed. (1) Bacteria contribute proportionally less than autotrophs to
ecosystem respiration as trophic status increases. This hypothesis was examined in a ...
Can feeding of fish on terrestrial insects subsidize the nutrient pool of lakes?
errestrial insects subsidize lakes
2014/5/13
We estimated consumption and excretion rates of terrestrial-borne phosphorus by a population of the insectfeeding fish species bleak (Alburnus alburnus) in a 0.12-km2
mesotrophic lake of the Ge...