Matching of gas exchanger structure and function with activity and environment in air-breathing fishes

该项目将调查澳大利亚鱼的生理和结构，这些鱼使用鳃并呼吸空气。它将测量水中(鳃)和空气(肺、鱼囊或嘴)呼吸器官之间氧气和二氧化碳交换的分配，与水中溶解氧和鱼类新陈代谢能量需求的关系。在分级训练中，将测量三个选定物种的气体交换率、血液生化特征、交换器官的解剖和生理以及呼吸/运动耦合。这一结果将有助于我们理解影响呼吸空气演化的因素。

This project will investigate the physiology and structure of Australian fishes that use gills and breathe air. It will measure the partitioning of oxygen and carbon dioxide exchange between the aquatic (gills) and aerial (lung, swim-bladder or mouth) respiratory organs, in relation to dissolved oxygen in the water and metabolic energy demands by the fish. Rates of gas exchange, biochemical characteristics of the blood, anatomy and physiology of the exchange organs, and respiratory/locomotory coupling will be measured in three selected species during graded exercise. The results will help us understand the factors influencing the evolution of air-breathing.