The long term effects of subtle temperature rises on aquatic micro-ecosystems
Abstract
Three-stage aquatic microcosms have been employed to investigate the long-term effects of subtle temperature rises. The type of microcosm used consists of three seperate aquaria, each representing one of the following trophic levels: autotrophs, herbivores and decomposers. The subsystems are interconnected by a pump-driven circulation flow. During a two-year experiment four of these systems have been subjected to a sequence of temperatures. Assuming the winter situation to be the most...