نتایج جستجو برای: inland water

تعداد نتایج: 555824  

The understanding of inland wetlands’ distribution and their level of vulnerability is important to enhance management and conservation efforts. The aim of the study was to map inland wetlands and assess their distribution pattern and vulnerability to natural and human disturbances such as climate change (temperature increase) and human activities by the year 2080. Inland wetland types i.e. for...

Journal: :پژوهش های علوم و فنون دریایی 0
مرتضی کاشفی الاصل گروه مهندسی شیمی، دانشکده فنی مهندسی، دانشگاه آزاد اسلامی واحد تهران شمال رضا مرندی گروه مهندسی شیمی، دانشکده فنی مهندسی، دانشگاه آزاد اسلامی واحد تهران شمال علیرضا افراسیابی گروه مهندسی شیمی، دانشکده فنی مهندسی، دانشگاه آزاد اسلامی واحد تهران شمال

this paper used the results of a research project entitled biodiversity of inland water fishes of iran which was carried out from 2005 to 2010. some 3500 fish specimens were obtained from different basins of iran by using electrofishing method, cast net, gill net and hook. using criteria such as size, shape and color, some of them are considered suitable to keep in aquarium. due to the results ...

2015
Serap Pulatsü Akasya Topçu

Turkey’s inland water ecosystem consists of 33 rivers (177.714 miles), 200 natural lakes (906.118 ha), 159 reservoirs (342.377 ha) and 750 ponds (15.500 ha). Sedimentological studies conducted on inland water ecosystems during the last 15 years in Turkey can be categorized into two main topics. The first group of studies is concerned with heavy metal levels in sediment, with especial reference ...

Journal: :international journal of aquatic biology 0
saber vatandoust department of fisheries, islamic azad university, babol branch, mazandarn, iran. sedat v. yerli department of biology, faculty of science, hacettepe university, beytepe campus, ankara, turkey. parya jalili department of fisheries, faculty of natural resources, university of tehran, karaj, iran.

osteological features are important to study the taxonomy and phylogenetic relationship of fishes. since there is no information is available about osteological features of squalius orientalis , therefore this study was aimed to provide a detailed description of the osteological features of this species from the urmia lake basin of iran and comparing it with population of s. orientalis from the...

Journal: :Global change biology 2014
Balathandayuthabani Panneer Selvam Sivakiruthika Natchimuthu Lakshmanan Arunachalam David Bastviken

Inland waters were recently recognized to be important sources of methane (CH4 ) and carbon dioxide (CO2 ) to the atmosphere, and including inland water emissions in large scale greenhouse gas (GHG) budgets may potentially offset the estimated carbon sink in many areas. However, the lack of GHG flux measurements and well-defined inland water areas for extrapolation, make the magnitude of the po...

Journal: :Environmental toxicology and chemistry 2016
Bryan W Brooks James M Lazorchak Meredith D A Howard Mari-Vaughn V Johnson Steve L Morton Dawn A K Perkins Euan D Reavie Geoffrey I Scott Stephanie A Smith Jeffery A Steevens

In this Focus article, the authors ask a seemingly simple question: Are harmful algal blooms (HABs) becoming the greatest inland water quality threat to public health and aquatic ecosystems? When HAB events require restrictions on fisheries, recreation, and drinking water uses of inland water bodies significant economic consequences result. Unfortunately, the magnitude, frequency, and duration ...

2010
Robin L. Welcomme Ian G. Cowx David Coates Christophe Béné Simon Funge-Smith Ashley Halls Kai Lorenzen

The reported annual yield from inland capture fisheries in 2008 was over 10 million tonnes, although real catches are probably considerably higher than this. Inland fisheries are extremely complex, and in many cases poorly understood. The numerous water bodies and small rivers are inhabited by a wide range of species and several types of fisher community with diversified livelihood strategies f...

2010
P. Molnar D. Akca M. Doumi M. Cavalcanti W. Kinzelbach

The topography of inland deltas is influenced by the water-sediment bal-3 ance in distributary channels and local evaporation and seepage rates. In this 4 letter a reduced complexity model is applied to simulate inland delta forma-5 tion, and results are compared with the Okavango Delta, Botswana and with 6 a laboratory experiment. We show that water loss in inland deltas produces 7 fundamental...

2017
Elliott Ronald Dossou-Yovo Idriss Baggie Justin Fagnombo Djagba Sander Jaap Zwart

Inland valleys are becoming increasingly important agricultural production areas for rural households in sub-Saharan Africa due to their relative high and secure water availability and soil fertility. In addition, inland valleys are important as water buffer and biodiversity hot spots and they provide local communities with forest, forage, and fishing resources. As different inland-valley ecosy...

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