نتایج جستجو برای: parishan lake

تعداد نتایج: 42291  

In this study, otolith morphology and otolith contour from big-scale sand smelt, Atherina boyeri were analyzed in Lake Eğirdir and Lake İznik (natural lakes), and Hirfanlı Dam Lake (artificial lake). The otolith contour and sixteen otolith morphological characters such as width, depth, shape, sulcus acusticus shape, ostium, cauda, rostrum size-shape, and thickness, antirostrum size-shape, and t...

In this study, otolith morphology and otolith contour from big-scale sand smelt, Atherina boyeri were analyzed in Lake Eğirdir and Lake İznik (natural lakes), and Hirfanlı Dam Lake (artificial lake). The otolith contour and sixteen otolith morphological characters such as width, depth, shape, sulcus acusticus shape, ostium, cauda, rostrum size-shape, and thickness, antirostrum size-shape, and t...

In the last decade, the lake tourism as one of the newest branches of natural tourism has been under attention of scientific societies. So that this type of tourism has grown significantly and many economic benefits for host communities has brought. The aim of this study is evaluating the factors affecting lake tourism development in Iran. In this regard, a wide variety of indicators in the dim...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Kathryn R Elmer Chiara Reggio Thierry Wirth Erik Verheyen Walter Salzburger Axel Meyer

The Great Lakes region of East Africa, including Lake Victoria, is the center of diversity of the mega-diverse cichlid fishes (Perciformes: Teleostei). Paleolimnological evidence indicates dramatic desiccation of this lake ca. 18,000-15,000 years ago. Consequently, the hundreds of extant endemic haplochromine species in the lake must have either evolved since then or refugia must have existed, ...

2010
John R. O ' Connor

While the Otsego Lake watershed supports a large diversity of fish species, the list present in the watershed has been continuously updated since the original publication by McWatters (1980,1983). New species have been documented by Hayes and Foster (1989), Foster (1989), Foster and ColIura (1990), and Brooking ( 1991) and the extinction of a species has also been reported by Lehman el al., (19...

2010
David M. Warner

Fish were collected from four sites on Otsego Lake on 3 and 4 August 98 to describe littoral populations and diversity and to make a comparison with a similar study conducted in 1986. A haul seine was used to catch the fish, which were marked, weighed, measured and released. The Peterson mark-recapture method was used to estimate abundance at the four sites. Margalefs diversity index was used t...

Journal: :آب و خاک 0
جلیلی جلیلی مرید مرید بناکار بناکار نامدار قنبری نامدار قنبری

abstract the urmia lake as an important water body in the northwest of iran, recently is faced with a critical level reduction, which makes it important to evaluate the causes. in this regard understanding of the lake's behavior and assessing effect of tele-connections on lake level oscillations is necessary. this subject constructs objective of the present paper that applies the spectral analy...

Journal: :international journal of environmental research 2013
l. yang k. lei w. yan y. li

this study investigated the impact of internal nitrogen and phosphorus loading on water qualityof lake chaohu, china. results showed that the overall mean concentration of tn and tp in lake water was1.09±0.84 and 0.15±0.84 (sd) mg/l, respectively, indicating lake chaohu was highly eutrophic during thestudy period. mean benthic flux of nh4 +, no3 -, and po4 3- were 3.56±1.52 mg n/m2/d, -0.14±0.4...

Journal: :international journal of environmental research 0
l. yang river and coastal environment research center, chinese research academy of environmental sciences, beijing 100012, p. r. china k. lei river and coastal environment research center, chinese research academy of environmental sciences, beijing 100012, p. r. china w. yan institute of geographic sciences and natural resources research, chinese academy of sciencesÿ11a datun road, beijing, 100101, p.r. china a. mohseni-bandpei health faculty, shahid beheshti university of medical sciences, tehran, iran

this study investigated the impact of internal nitrogen and phosphorus loading on water qualityof lake chaohu, china. results showed that the overall mean concentration of tn and tp in lake water was1.09±0.84 and 0.15±0.84 (sd) mg/l, respectively, indicating lake chaohu was highly eutrophic during thestudy period. mean benthic flux of nh4 +, no3 -, and po4 3- were 3.56±1.52 mg n/m2/d, -0.14±0.4...

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