نتایج جستجو برای: lethal effects
تعداد نتایج: 1579563 فیلتر نتایج به سال:
Predators can affect individual fitness and population and community processes through lethal effects (direct consumption or ‘density’ effects), where prey is consumed, or through non-lethal effects (trait-mediated effects or interactions), where behavioural compensation to predation risk occurs, such as animals avoiding areas of high predation risk. Studies of invertebrates, fish and amphibian...
The aim of this study was to evaluate the safety effects of prebiotic isomalto-oligosaccharid on the damage of liver and gill tissues in common carp exposed to lethal concentrations of toxin butachlor. A total of 120 specimens of common carp with an average weight of 6.13±0.31 g were kept. Water physicochemical parameters were measured during the experiment. LC50 96h for toxin butachlor was ob...
abstract in respect to nano-technological studies and physiological and biochemical lesions of these materials on aquatic animals, in this study we examine the toxicity effects of nano-zinc oxide (zno nps) on hematological indices of common carp (cyprinus carpio). lc50 of nano zinc oxide was determined according to the mortality at 24, 48, 72 and 96 hours, respectively. during separate experime...
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