A trophic web is a network of complex interactions and energy links between species. These can be simplified into trophodynamic models, such as Ecopath (EP) EcoTroph (ET), important tools providing the holistic view needed for ecosystem approach to fisheries. We described food structure by developing an EP model Santa Cruz Channel (SCC), large tropical estuarine system in northeastern Brazil, s...

Voltage-gated Ca2+ channels play essential roles in control of neurosecretion and muscle contraction. The pharmacological significance of Cav channels stem from their identification as the molecular targets of calcium blockers used in the treatment of cardiovascular diseases, such as hypertension, angina, and arrhythmia, and neurologic diseases, such as pain and seizure. It has been proposed th...

Accurate, rapid and cost-effective fish assemblage monitoring is fundamental for marine protected area (MPA) management as a pivotal tool to verify whether what extent MPA conservation objectives have been achieved redefine these in the framework of an adaptive management. Recently, there has sharp increase number video-based methods study fauna, such baited remote underwater video (BRUV) syste...

The activity of enzyme systems catalyzing the metabolism of drugs and other chemicals foreign to the body varies with the species, sex, genetic background, and the physiologic state of the animal. A variety of drugs and chemicals which cause increases in the activity of microsomal drug-metabolizing enzymes have been reported.1' 2 There is a decrease or lack of oxidative drug-metabolizing enzyme...