نتایج جستجو برای: freshwater vegetable
تعداد نتایج: 50475 فیلتر نتایج به سال:
Plankton is the primary food sources for many fish larvae as well other organisms during their early stage of development. Zooplankton such copepods play a major role in freshwater and marine environment live that offer great variety sizes, species nutritional value to larvae. The aim this study increase copepod its effect on Penaeus monodon post-larvae growth performance. experiment was carrie...
Freshwater aquaculture is an important source of greenhouse gas (GHG) emissions. GHG emissions are expected to lead global warming and climate change. A reduction in urgently required for the sustainable development freshwater aquaculture. In this study, a laboratory-scale experiment was conducted analyze effects vegetable–fish co-culture on CH4 N2O from pond. The results show that co-culturing...
Freshwater fish biodiversity is a precious natural asset in terms of economic, cultural and scientific interest. And yet, the inland freshwater ecosystem in Malaysia is declining at a far greater rate than terrestrial ecosystems in the tropics. What happened, and what is being done to address the crisis? This paper extracts findings from the latest literature and explores overarching issues per...
freshwater lens on small islands may easily be overexploited or polluted due to overdrafts of fresh water by pumping which causes drawdown of the water table a rise or up-coning of the saltwater interface. present study is concerned with using a three-dimensional finite-difference numerical model to simulate the groundwater flow and transport model to predict the behavior of groundwater system ...
Freshwater pond aquaculture is the prevailing fish culture system worldwide, especially in developing countries. The sustainability of such systems has not been assessed and it can be improved based on suitable scientific analyses. In present study, we apply emergy synthesis to assess lambari aquaculture, used as a model freshwater monoculture Brazil, identify key practices, propose changes imp...
During peak smoltification, the interactive effects of cortisol and ambient seawater challenge were compared in two strains of Atlantic salmon (Salmo salar) smolts: a domesticated strain, AquaGen and a native River Imsa strain. Tissue and blood samples were taken from untreated fish on 20 May. Fish were then transferred to experimental tanks, allowed to recover for 24 h and cortisol (50 mg kg b...
the genus alburnoides jeitteles, 1861 in iran is reviewed, and diagnoses are presented for all eight recognized species. alburnoides eichwaldii, a. holciki, a. idignensis, a. namaki, a. nicolausi, a. petrubanarescui, a. qanati and a. tabarestanensis are considered valid and three new species are described: alburnoides coadi sp. n., from namrud river in kavir basin, a. parhami sp. n., from atrak...
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