Temperature dependence of an estuarine harmful algal bloom: Resolving interannual variability in bloom dynamics using a degree day approach [0.03%]
温度依赖的河口水华灾害及其年际变化：采用度日法解析水华动力学机制
David K Ralston,Bruce A Keafer,Michael L Brosnahan et al.
David K Ralston et al.
Observations of harmful algal blooms (HABs) of the dinoflagellate Alexandrium fundyense in an estuary over multiple years were used to assess drivers of their spatial and temporal variability. Nauset Estuary on Cape Cod, Massachusetts has a...
Seasonal and ontogenetic changes of mycosporine-like amino acids in planktonic organisms from an alpine lake [0.03%]
高山湖泊浮游生物中类麦孢素氨基酸的季节性和个体发育变化
Barbara Tartarotti,Ruben Sommaruga
Barbara Tartarotti
We studied the quantitative and qualitative mycosporine-like amino acid (MAA) composition in phytoplankton and the copepod Cyclops abyssorum tatricus from an alpine lake over a 15-month period. Up to eight MAAs were identified in the sample...
Contribution of mycosporine-like amino acids and colored dissolved and particulate matter to sea ice optical properties and ultraviolet attenuation [0.03%]
透明冰中次生氨基酸、溶解和颗粒状物质对海冰光学性质及紫外屏蔽作用的贡献
Jari Uusikivi,Anssi V Vähätalo,Mats A Granskog et al.
Jari Uusikivi et al.
In the Baltic Sea ice, the spectral absorption coefficients for particulate matter (PM) were about two times higher at ultraviolet wavelengths than at photosynthetically available radiation (PAR) wavelengths. PM absorption spectra included ...
Living at the border: A community and single-cell assessment of lake bacterioneuston activity [0.03%]
居安思危：湖面细菌层的社区和单细胞活性评估
Paul Hörtnagl,María Teresa Pérez,Ruben Sommaruga
Paul Hörtnagl
We assessed the physicochemical properties of the surface microlayer (SML: first 900 μm) and its underlying water (ULW: 0.2-0.5-m depth) and compared the composition and activity of their bacterial communities in six lakes located across a...
Rita Adrian,Catherine M O&#x;Reilly,Horacio Zagarese et al.
Rita Adrian et al.
While there is a general sense that lakes can act as sentinels of climate change, their efficacy has not been thoroughly analyzed. We identified the key response variables within a lake that act as indicators of the effects of climate chang...
Viruses in Antarctic lakes [0.03%]
南极湖泊中的病毒
R L Kepner Jr,R A Wharton Jr,C A Suttle
R L Kepner Jr
Water samples collected from four perennially ice-covered Antarctic lakes during the austral summer of 1996-1997 contained high densities of extracellular viruses. Many of these viruses were found to be morphologically similar to double-str...
R A Wharton Jr,C P McKay,G M Simmons Jr et al.
R A Wharton Jr et al.
A bulk O2 budget for Lake Hoare, Antarctica, is presented. Five years of seasonal data show the lake to be persistently supersaturated with O2. Oxygen is carried into the lake in glacial meltstreams and is left behind when this water is rem...
A simple fiber-optic microprobe for high resolution light measurements: application in marine sediment [0.03%]
一种用于高分辨率光测量的光纤微探针：在海洋沉积物中的应用
B B Jorgensen,D J Des Marais
B B Jorgensen
A fiber-optic microphobe is described which is inexpensive and simple to build and use. It consists of an 80-micrometers optical fiber which at the end is tapered down to a rounded sensing tip of 20-30-micrometers diameter. The detector is ...
Impact of light regimes on productivity patterns of benthic microbial mats in an antarctic lake: a modeling study [0.03%]
光照条件对南极湖泊底栖微生物垫生产力模式的影响：基于模型的研究
D L Moorhead,C F Wolf,R A Wharton Jr
D L Moorhead
Filamentous cyanobacteria often dominate benthic microbial communities of antarctic lakes and usually exhibit saturation of photosynthesis at light intensities approximately 100 microEinst m-2 s-1. Incident light regimes are controlled by i...
Extreme supersaturation of nitrous oxide in a poorly ventilated Antarctic lake [0.03%]
南极洲一个通风不良的湖泊中一氧化二氮的极度过饱和现象
J C Priscu,M T Downes,C P McKay
J C Priscu
Lake Bonney, a permanently ice-covered Antarctic lake, has a middepth maximum N2O concentration of 41.6 micromoles N (>580,000% saturation with respect to the global average mixing ratio of N2O) in its east lobe, representing the highest le...