Христофорова Н.К. Основы экологии: Учебник для биол. и экол. факультетов университетов (рус.

Некоторые виды рыб (например, серебряный карась и разные виды сомов) имеют комплекс косточек (веберов аппарат), соединяющий ухо с плавательным пузырём. Благодаря этой адаптации внешние вибрации усиливаются плавательным пузырём, как резонатором. Отолит в третьей камере обеспечивает рыбе ориентацию в пространстве.

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The study of fishes, the science of ichthyology, is of broad worth. Fishes are of desire to people For lots of reasons, the most important currently being their romantic relationship with and dependence around the natural environment. A more evident reason behind interest in fishes is their job for a reasonable but significant Portion of the entire world’s foodstuff source.

Fish are located in bodies of drinking water all around the globe, and they are a significant section of their ecosystems. Fish are heterotrophs* that conduct a number of roles within the food items chain.

Pelvic, or ventral, fins can be found near the base of a fish’s physique, one on possibly facet. In many fish they are located even more back compared to the pectoral fins.

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Самка горчака может вытягивать своеобразный яйцеклад в длинную трубку и откладывает икру в мантийную полость пресноводных двустворчатых моллюсков.

Пресноводные рыбы сталкиваются с противоположной проблемой (поскольку у них концентрация солей в организме выше, чем в окружающей среде). Осмотическое давление у них выравнивается благодаря захвату ионов из водной среды через жаберные мембраны, а также благодаря выделению большого количества мочевины.

Многие виды рыб изменяют тип питания на протяжении жизни: например, в молодом возрасте питаются планктоном, а позже — рыбами или крупными беспозвоночными.

Oviparous fish ordinarily hatch in an underdeveloped point out, and have a yolk sac in the egg that provides nutrients until eventually the fish is able to feed itself.

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The organs of Listening to in fish are entirely inner, Situated inside the cranium, on all sides with the Mind, and fairly powering the eyes.