Читать книгу Fundamentals of Aquatic Veterinary Medicine - Группа авторов - Страница 39

Aquasystem water color influences microplankton growth, which can affect the stability of the water chemistry. Water clarity can affect fish. If fish that prefer turbid waters (e.g., bullhead, catfish, walleye) are cultured in relatively clear water they will experience stress; survival and growth will be adversely affected. Intensive aquaculture systems, particularly recirculating systems, utilize equipment such as aerators, air and water pumps, blowers, and filtration systems that inadvertently increase vibration and noise levels in fish culture tanks (see also vibration and noise in Chapter 10). Field and laboratory studies have shown that fish behavior and physiology can be negatively impacted by intense sound. Chronic exposure to aquaculture production noise could therefore cause increased stress, reduced growth rates, and cold feed conversion efficiency, and decreased survival. In the wild, geological and geophysical exploration, pile driving, drilling, dredging, and vessel traffic all produce manmade noise and vibrations, which may have negative effects on native fauna, which may range from physiological and behavioral effects to physical damage.