- مبلغ: ۸۶,۰۰۰ تومان
- مبلغ: ۹۱,۰۰۰ تومان
Most fish larvae have evolved to feed selectively on complex natural assemblages of microzooplankton prey, and motion patterns are an important component in the recognition of particles as potential food items. This is why live (swimming) prey are often critical to the survival of larval fish. In response to fish predation many zooplankton species have also evolved adaptations to make them less visible to potential predators, including increased transparency and intermittent locomotion. In addition, calanoid copepods have evolved some of the most effective escape behaviors found among aquatic organisms. Some copepods can respond rapidly (< 3 milliseconds) to the slight hydrodynamic disturbance caused by an approaching predator, rapidly accelerating to speeds of up to 800 body lengths per second.