نتایج جستجو برای: Shallow Lake

تعداد نتایج: 77158  

Journal: :international journal of advanced biological and biomedical research 2013
tahsin rahmani hadi poorbagher arash javanshir barzan bahrami kamangar

the zerebar lake is a shallow freshwater lake located in the northwestern iran. the lake is surrounded by three human activities: agriculture, tourism and dam. the present study aimed to investigate (1) which human activity has the greatest impact on eutrophication of the zerebar lake (2) if phytoplankton communities, as the indicator, are correlated with the human activities. water samples wer...

2015
Jane N. Ndungu Wenlong Chen Denie C. M. Augustijn Suzanne J. M. H. Hulscher J. N. Ndungu

The hydrodynamics in Lake Naivasha, a shallow endorheic lake, are simulated using the Delft3D Flow Module to investigate the major driving forces of hydrodynamics in the lake. The results showed wind as the major forcing. The shallow zones of the lake showed currents movement in the same direction as the wind while the deep zones showed currents movements against the wind direction. These findi...

Journal: :Applied and environmental microbiology 2003
K J Purdy D B Nedwell T M Embley

The distribution and activity of communities of sulfate-reducing bacteria (SRB) and methanogenic archaea in two contrasting Antarctic sediments were investigated. Methanogenesis dominated in freshwater Lake Heywood, while sulfate reduction dominated in marine Shallow Bay. Slurry experiments indicated that 90% of the methanogenesis in Lake Heywood was acetoclastic. This finding was supported by ...

Journal: :Journal of evolutionary biology 2005
K Østbye T F Naesje L Bernatchez O T Sandlund K Hindar

Combining morphological and genetic analysis, we compared patterns of diversification within and between morphs among sympatric European whitefish (Coregonus lavaretus L.) populations in Lake Femund, Norway. Seven external populations, from potential colonization routes into Lake Femund were included. We found that deep-, shallow-, river- and bay spawning populations are distinct morphs in Lake...

2005
Stelios Katsanevakis

Pecten jacobaeus is an exploitable bivalve, whose populations have greatly declined in the main Mediterranean fisheries since the mid ‘80s. A substantial population of the species was studied in the marine Lake Vouliagmeni (Korinthiakos gulf, Greece). The population density and the spatial distribution of P. jacobaeus were estimated in the lake with line transect sampling by SCUBA diving, a met...

2018
Louise Chavarie Kimberly L Howland Les N Harris Michael J Hansen William J Harford Colin P Gallagher Shauna M Baillie Brendan Malley William M Tonn Andrew M Muir Charles C Krueger

Depth is usually considered the main driver of Lake Trout intraspecific diversity across lakes in North America. Given that Great Bear Lake is one of the largest and deepest freshwater systems in North America, we predicted that Lake Trout intraspecific diversity to be organized along a depth axis within this system. Thus, we investigated whether a deep-water morph of Lake Trout co-existed with...

The present investigation of shallow-water gastropod Bulinus globosus is reported on nearshore sites in and around Cape Maclear on the northwestern part of the Nankumba Peninsula, Lake Malawi (part of Lake Malawi National Park) at a depth of 10 M. The present remark focuses on the geographical distribution and habitats of this group and sample have observed in Cape Maclear Island, Republic of M...

2005
Marjut T. Nyman Atte A. Korhola

For the implementation of the Water Framework Directive we need to develop an informative and cost-effective set of biological monitoring and assessment methods, especially for remote areas. Chironomids are known to be an abundant and speciesrich group that dominate the aquatic macroinvertebrate assemblages in the north and therefore should be an integral part of monitoring and assessment plans...

2013
Yuhong Jia Zhen Yang Wen Su Dan Johnson Fanxiang Kong

Controlling of cyanobacteria bloom during bottleneck stages of algal cycling in shallow Lake Taihu (China) Yuhong Jia, Zhen Yang, Wen Su, Dan Johnson & Fanxiang Kong To cite this article: Yuhong Jia, Zhen Yang, Wen Su, Dan Johnson & Fanxiang Kong (2014) Controlling of cyanobacteria bloom during bottleneck stages of algal cycling in shallow Lake Taihu (China), Journal of Freshwater Ecology, 29:1...

Journal: :Water research 2012
Ying Zhao Zhifeng Yang Xinghui Xia Fei Wang

Shallow lake eutrophication has been an important issue of global water environment. Based on the simulation and field sampling experiments in Baiyangdian Lake, the largest shallow lake in North China, this study proposed a shallow lake remediation regime with Phragmites australis (reed) incorporating its opposite effects of nutrient removal and water evapotranspiration on water quality. The re...

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