this study was undertaken to determine the concentration of mercury in edible muscle of five commercially valuable marine organisms from mosa bay, persian gulf, iran. the total mercury concentrations were determined by cold vapour atomic absorption spectrophotometry and expressed in μg/g dry weight. certified reference materials were used for each batch of analysis. mercury concentration was 0....

Fusarium fujikuroi, causing bakanae disease, is one of the most important seedborne pathogens rice, detection which paramount for seed certification and preventing field infections. Molecular tests—qPCR loop-mediated isothermal amplification (LAMP)—are replacing blotter test in health procedures, due to higher sensitivity, specificity, fast turnaround results delivery, on-site application possi...

Tracking techniques are vital for the understanding of the biology and ecology of organisms. While such techniques have provided important information on the movement and migration of large animals, such as mammals and birds, scientific advances in understanding the individual behaviour and interactions of small (mm-scale) organisms have been hampered by constraints, such as the sizes of existi...

From the beginning of the human race people have been applying different methods to change the genetic material of either plants or animals in order to increase their yield as well as to improve the quality and quantity of food. Genetically modified organism (GMO) means an organism in which the genetic material has been altered in a way that does not occur naturally by mating and/or natural rec...

The role that reticulate evolution (i.e., via lateral transfer, viral recombination and/or introgressive hybridization) has played in the origin and adaptation of individual taxa and even entire clades continues to be tested for all domains of life. Though falsified for some groups, the hypothesis of divergence in the face of gene flow is becoming accepted as a major facilitator of evolutionary...

Empirical investigations of the impacts of anthropogenic stressors on marine organisms are typically performed under controlled laboratory conditions, onshore mesocosms, or via offshore experiments with realistic (but uncontrolled) environmental variation. These approaches have merits, but onshore setups are generally small sized and fail to recreate natural stressor fields, whereas offshore st...

most minerals, occurring in aqueous environments, play a key role in the survival rate of aquatic living organisms. however, life situation of the living organisms would be under attack when the contents of these elements exceed than the specified limit because of various reasons (amini ranjbar, 1994). bioaccumulation of the elements in living organisms and their excess concentration than stand...