As a well-known example of “living fossil,” horseshoe crabs are ecologically significant macroinvertebrates in coastal and estuarine ecosystems. The tri-spine crab, Tachypleus tridentatus , has been widely utilized for amebocyte lysate production food consumption since the 1980s, which led to considerable population declines along west coast Pacific Ocean. declining crab is expected have ecolog...

Acoustic conditioning taming technology is one of the key tools for controlling and managing behavior target organisms in marine ranching. In this study, juvenile Pagrus major (Red Seabream) were subjected to acoustic with 400 Hz square–wave continuous tones 8 days laboratory 15 an open-sea area. At same time, elimination conditioned reflexes sounds applications ranching tested. The Gaussian mo...