作者: I. Patrick Saoud , Leonard Rodgers , Jesse Chappell , D. Allen Davis
DOI: 10.1577/A03-034.1
关键词: Water temperature 、 Body weight 、 Fishery 、 Perch 、 Overwintering 、 Research system 、 Aquaculture 、 Air blower 、 Biology 、 Aeration
摘要: Abstract Wild harvests of yellow perch Perca flavescens have failed to keep up with the strong market demand for fish. Moreover, has many attributes that make it attractive commercial aquaculture in USA. One drawback culture north-central region United States is low winter water temperatures inhibit somatic growth. In this study, juveniles were stocked at three densities (30, 60, and 90 per tank) 600-L tanks Auburn, Alabama, early January maintained throughout until mid-April. Water was circulated through an earthen pond returned research system by means a pump. Tanks aerated submersible air diffusers regenerative blower. Fish offered commercial, slow-sinking feed 5% body weight, temperature measured hourly remote data logger. Survival greater than 99% all treatments. When below 20°C, absolute gro...