نتایج جستجو برای: lake urmia basin

تعداد نتایج: 97887  

2012
P. De Los Rios R. Manaffar F. Mohebbi

Nowadays, biometrical characterizations of Artemia cysts are used as one of the most important factors in the study of Artemia populations and intraspecific particularity; meanwhile these characters can be used as economical indices. For example, typically high hatching efficiency is possible due to the small diameter of cysts (high number per gram); therefore small diameter of cysts show somew...

2010
Shela J. Patrickson Dorothy Sack Andrea R. Brunelle Katrina A. Moser

a r t i c l e i n f o Keywords: Great Basin Lake Bonneville Great Salt Lake Stansbury Island Stansbury shoreline Stansbury oscillation Stansbury Gulch Paleolake chronology Paleoclimate Multiple proxy This paper reports on recent multiproxy research conducted to determine the chronology of lake-level fluctuations recorded in sediments from a natural exposure at a classic Bonneville basin site. G...

2009
David Rhode David B. Madsen P. Jeffrey Brantingham Steven L. Forman John W. Olsen

Qinghai Lake, located on the northeastern Qinghai–Tibet Plateau (Qing-Zang Gaoyuan), is China’s largest extant closed-basin lake. Its position relative to major Asian climate systems makes it sensitive to global climate change. The lake has been the subject of numerous paleoenvironmental investigations including dating of shoreline features around the lake basin. Here we report new age estimate...

Journal: :iranian journal of ichthyology 0
hamid ghasemi eastern azerbaijan agriculture and natural resources research center, p.o. box: 53555-141 tabriz, iran. arash jouladeh roudbar department of fisheries, faculty of natural resources, sari university of agricultural sciences and natural resources, sari, iran. soheil eagderi department of fisheries, faculty of natural resources, university of tehran, karaj, iran. keivan abbasi aquatic ecology department of the inland water aquaculture research center, p.o. box 66, bandar anzali, iran. saber vatandoust department of fisheries, babol branch of islamic azad university, mazandaran, iran. hamid reza esmaeili department of biology, college of sciences, shiraz university, shiraz, 71454–iran.

fish biodiversity investigation in urmia basin which is a part of irano-anatolian hot spot aimed to determine the state of fish in this endorheic basin. based on the obtained results, freshwater fish species of the urmia basin comprise 29 species in 25 genera, 7 families, 5 orders and one class. the most diverse order is the cypriniformes with 23 species (79.31%) followed by salmoniformes and p...

2015
D. Mokhtari

Any variation in environmental characteristics of geomorphosites would lead to destabilisation of their geotouristic values all around the planet. The Urmia lake, with an area of approximately 5,500 km and a catchment area of 51,876 km, and to which various reasons over time, especially in the last fifty years have seen a sharp decline and have decreased by about 93 % in two recent decades. The...

Groundwater resources are considered as a largest reservoir of available freshwater in the world. According to the importance and scarcity of this precious resource, studying the groundwater quality changes is very important. Declines in water level of Urmia lake has led to increase in the salinity of water in this lake. In this paper, water level reduction effects were studied on qualitative c...

ژورنال: علوم آب و خاک 2018

The irrigation and drainage network of Zarrinehroud with an area of 65,000 hectares is the most important network of Lake Urmia basin, with the direct link to the lake. With the current crisis in the lake, an assessment of the existing network's performance is essential in the Urmia Lake Rescue Program. The purpose of this study was, therefore, to evaluate the transmission, distribution, and ut...

Journal: :Quaternary International 2021

The ongoing changes affecting Lake Urmia (NW Iran) are revealed by the lake water level decrease (~7 m in last 20 yr) that was attributed to natural and anthropogenic causes but exact impact of these factors on state is still not identified. Indeed, lack detailed record environmental evolution past limits understanding actual future processes. Our project aims obtain a high-temporal resolution ...

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