نتایج جستجو برای: sea
تعداد نتایج: 130133 فیلتر نتایج به سال:
dry areas near the sea can obtain fresh water through solar distillation of saline sea water resources. however, these solar distillation sites produce wastewater as a result of desalination of sea water with high salt concentration. waste must be disposed of with the least effect on the receiving environment (sea, in most cases). initial dilution and its characteristics play important roles in...
چکیده ندارد.
background: pesticides are essential in modern agricultural practices but due to their biocide activity and potential risk to the consumer, the control of pesticide residues in foods is a growing source of concern for the general population. extensive application of such agents as organochlorine pesticides in farmlands and contemporary agricultural industries has led to undesired environmental ...
samples from five sturgeon species including persian sturgeon (acipenser persicus), russian sturgeon (a. gueldenstaedti), great sturgeon (huso huso),ship sturgeon (a. nudi-ventris) and stellate sturgeon (a. stellatus) were collected from the south caspian sea. dna was extracted from the fins, eggs and skeleton muscle of the five species. rapd markers were used for identifying different kinds of...
some parasites can be transferred from fish to human via eating of contaminated meat and make serious problems in consumers. in the present study zoonotic parasites of abdominal cavity in pike-perch, sander lucioperca, in south eastern part of the caspian sea have been surveyed. in this regard, 30 fish were caught by purse seine net and abdominal cavity, digestive tract and other organs (kidney...
sea shores of gilan province is one off the biggest tourist attractions in iran. this area have valuable forests and grasslands. in addition it provides significant amount of corps like rice, tea, olive. considering this facts, environmental protection of this area must be priority for national government. however waste management instruction have been ratified in iran, there isn’t any specific...
the goal of this research is to study the effect of benzo-alpha-pyrene (bαp) as a pollutant on the plasma levels of cortisol, thyroxin (t4), and triiodothyronine (t3) hormones, and the t3/t4 ratio in the yellowfin sea bream, acanthopagrus latus. the bαp (50 mg kg-1) in vegetable oil was peritoneally injected. blood samples were obtained from the treated and control groups after 3 and 72 hr, res...
kutum is considered as one of the anadramous species of the caspian sea. due to continuous population decline of the fish since 1975, iranian fisheries organization started to restock this species. nowadays, there is growing concern over the effects of restocking on natural populations. for this purpose, population structure and genetic variation of this species in the iranian coastline of casp...
a r t i c l e i n f o This paper examines the strategic environmental assessment (SEA)–sustainability relationship over the past decade, from 2000 to 2010, focusing in particular on the incorporation of sustainability in SEA. A total of 86 papers from the academic literature containing the terms 'sustainability' or 'sustainable development' and 'strategic environmental assessment' were identifi...
The Arctic has featured the strongest surface warming over the globe during the recent decades, and the temperature increase has been accompanied by a rapid decline in sea ice extent. However, little is known about Arctic sea ice change during the early twentieth century warming (ETCW) during 1920–1940, also a period of a strong surface warming, both globally and in the Arctic. Here, we investi...
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