Читать книгу Clinical Guide to Fish Medicine - Группа авторов - Страница 61

This group includes some of the most important forage and food fish. They tend to be silvery with a consistent body plan. They have an unusual swim bladder that extends from the inner ear (otophysic) to the anus and into the lateral lines. This increases sensitivity to low‐frequency sounds from other fish (Helfman et al. 2009). They are schooling and may be seen in aquaria as “balls” of fish.