نتایج جستجو برای: c 10

تعداد نتایج: 1918766  

2007
Christopher M. Fleming Averil Cook

Lake McKenzie is one of the most highly used and popular visitor destinations of all Fraser Island’s natural sites, attracting 2,000 visitors a day in peak periods. Many consider this level of visitation to be unsustainable and the management authority is considering a range of management options. In assessing the alternatives it is useful to have some idea of the recreational value of the Lake...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2009
E A Murakami D C Bicudo L Rodrigues

The changes imposed by dams on hydrological regime, water transparence and nutrient concentrations downstream affect biodiversity in relation to species richness and specific composition of the community. The aim of this work was evaluate this effect on periphyton, comparing richness and composition of periphytic algae in the Garças Lake, Upper Paraná River floodplain, between the years 1994, b...

Journal: :Journal of environmental sciences 2008
Jingqiao Mao Qiuwen Chen Yongcan Chen

Taihu Lake, the largest freshwater shallow lake in eastern China, has suffered from severe eutrophication over the past two decades. This research developed a three-dimensional eutrophication model to investigate the eutrophication dynamics. The model fully coupled the biological processes and hydrodynamics, and also took into account the effects of sediment release and the external loads from ...

2002
B. K. LUBSANDORZHIEV

The lake Baikal Neutrino Experiment has history of more than 20 years, starting from small short experiments with a few PMTs in the early 80s to the present large scale longterm operating neutrino telescope NT-200, which has been put into operation on April 6th 1998. The telescope’s effective area for muons is 2000-10000 depending on a muon energy. The rate of events due to atmospheric neutrino...

Journal: :Journal of Nuclear Science and Technology 1985

2006
A. G. Davies

Introduction: We have obtained multiple contemporaneous ground and space-based visible and hyperspectral infrared observations of a persistent active lava lake, one of the rarest volcanonological phenomenon. This unique dataset advances our understanding of remote sensing of lava lake activity on Earth and Io. The Mt. Erebus lava lake: Active lava lakes are the top of an open magma system and p...

2013
Elke S. Reichwaldt Haihong Song Anas Ghadouani

Toxic cyanobacterial blooms can strongly affect freshwater food web structures. However, little is known about how the patchy occurrence of blooms within systems affects the spatial distribution of zooplankton communities. We studied this by analysing zooplankton community structures in comparison with the spatially distinct distribution of a toxic Microcystis bloom in a small, shallow, eutroph...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید