Why fish cannot grow in warm as well as in cold water??
Answers
Changes in temperature affect aquatic life. Temperature determines which organisms will thrive and which will diminish in numbers and size. For each organism, there is a thermal death point. Also, there is a range of temperature of that produces optimal abundance. The effects of temperature upon the life of a cold-blooded or poikilotherm are profound. Poikilothermic animals, such as fish, are those whose body temperatures follow closely the temperature of their medium.
High and low temperatures that are lethal to an individual organism of a species determines the distribution and abundance it’s populations. However, more often the distribution and abundance of populations is determined by less than lethal temperatures interacting with other environmental factors that either tend to favour or not to favour reproduction and growth.