WHAT CAN WE CONCLUDE FROM THE PATTERNS OF ENZYMATIC ACTIVITY vs DEPTH? Deep-Sea Fishes Have Vastly Reduced Locomotory Capacity: Most of the reduction in O2 consumption rates reflects reductions in muscular activity Enzymatic Activities Not Reduced in all Tissues and Organs: Brain exhibits no decrease in capacity for ATP reduction Another argument supporting locomotory specific adaptations Only Visual Predators (See'em and seek'em) Show These Reductions: Gelatinous organisms do not show these trends Not all deep-sea animals reduce metabolism with depth