نتایج جستجو برای: caspian forests

تعداد نتایج: 42923  

Journal: :Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 2017

2017
Rashid Alijani Ardeshir Hossein Zolgharnein Abdolali Movahedinia Negin Salamat Ebrahim Zabihi

Fipronil is an effective insecticide widely used in agriculture with potential ecotoxicological consequences. The median lethal dose (LD50) and concentration (LC50) of fipronil in 16.3 g Caspian white fish, Rutilus frisii kutum fingerlings were determined. To determine the LD50, a total of 133 fish were assigned to 19 tanks (7 fish/tank) including one control and 6 treatment groups (300, 450, 5...

Journal: :FO & DM 2010
Madjid Tavana Mariya A. Sodenkamp Mohsen Pirdashti

Economic expansion in developed countries coupled with dramatically growing economies in countries such as China and India have precipitated a steady increase in demand for oil and natural gas. The Caspian Sea region holds large quantities of both oil and natural gas. Because the Caspian Sea is landlocked and the region’s nations are distant from the largest energy markets, transportation must ...

2012
Jacqueline Nolting Anthony C. Fries Richard D Slemons Chad Courtney Nichole Hines Janice Pedersen

In 2010, H14 influenza A viruses were recovered from clinically normal sea ducks in the United States. These are the first H14 isolates recovered in the Western Hemisphere and represent the only documented H14 influenza A viruses isolated since the original isolates were recovered from near the Caspian Sea during 1982.

2013
Esmail Gharedaashi Hamed Nekoubin Mohammad Reza Imanpoor Vahid Taghizadeh

The aim of present study was to determine the LC50/96 h value of copper sulfate and determine the growth performance of Caspian Sea kutum) Rutilus frisii kutum (fingerlings during 60-days sub-lethal copper (Cu). After acclimation period to two weeks, for determine the LC50/96 h value, total of 27 aquarium with a capacity of 60 L each stocked with 10 fishes an aquarium. Tunney four aquarium and ...

2016
Sahar Irankhah Mohammad Reza Soudi Sara Gharavi

BACKGROUND AND OBJECTIVES The US Environmental Protection Agency has suggested faecal enterococci as the primary bacterial indicators. Of more importance is their direct correlation with swimmer-associated gastroenteritis in recreation water quality monitoring. In contrast to other seawater bodies with 3.5% salinity, the recreational waters in the southern coast of the Caspian Sea possess its o...

2014
Alicja KONOPACKA Kamil HUPAŁO Tomasz REWICZ Michał GRABOWSKI

Amphipod fauna of Moldova remains one of the least known in Europe with the most recent data upon species distribution being already almost 50 years old. In this paper, we summarize the knowledge upon the distribution of amphipods in Moldovan inland waters based on literature survey combined with our new original data and present a comprehensive checklist of recorded amphipod species. The new o...

Journal: :Scottish Geographical Magazine 1920

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