Question

Почему рыбы горных рек не могут выжить в других водоёмах?

Answer 1

В горных реках вода больше насыщена кислородом, температура воды, поэтому они не могут приспособиться к жизни в других водоёмах. А ещё в горах вода чище, чем. например, в реках и озёрах.

Answer 2

Why can't fish from mountain rivers survive in other bodies of water?

Fish from mountain rivers are adapted to the specific conditions of their natural habitat, which includes factors such as water temperature, oxygen levels, and food availability. These adaptations allow them to thrive in their unique environment. When these fish are introduced to other bodies of water, such as lakes or ponds, they may struggle to survive due to the differences in these environmental factors.

Water Temperature: Mountain rivers often have colder water temperatures compared to other bodies of water. Fish species that are adapted to these colder temperatures may not be able to tolerate the warmer temperatures found in lakes or ponds. The change in temperature can stress the fish and affect their metabolism, growth, and overall health.

Oxygen Levels: Mountain rivers typically have higher oxygen levels due to the fast-flowing water and the presence of rapids and waterfalls. Fish in these rivers have evolved to extract oxygen efficiently from the water. In contrast, lakes and ponds may have lower oxygen levels, especially in stagnant areas or during certain seasons. Fish that are adapted to high oxygen levels may struggle to survive in these conditions.

Food Availability: Fish in mountain rivers are adapted to the specific food sources found in their habitat, such as insects, small crustaceans, or other aquatic organisms. When introduced to other bodies of water, the availability and type of food may be different. If the fish cannot find suitable food sources, they may struggle to survive and reproduce.

It is important to note that while these factors contribute to the challenges faced by fish from mountain rivers in other bodies of water, there are exceptions and some fish species may be able to adapt or survive in different environments. However