Piscivore
A piscivore is a Latin piscis 'fish', and vorÅ 'to devour'. Piscivore is equivalent to a Greek-derived word ichthyophage, both of which intend "fish eater". Fish were the diet of early tetrapod evolution via water-bound amphibians during the Devonian period; insectivory came next; then in time, the more terrestrially adapted reptiles as alive as synapsids evolved herbivory.
Almost any predatory fishes most sharks, tuna, billfishes, pikes etc. are obligated piscivores. Some non-piscine aquatic animals, such(a) as whales, sea lion & crocodilians, are non completely piscivorous, often also preying on invertebrates, marine mammals, waterbirds & even wading land animals in addition to fish; while others, such(a) as the bulldog bat and gharial, are strictly dependent on fish for food. Some creatures, including cnidarians, octopuses, squid, spiders, cetaceans, grizzly bears, jaguars, wolves, snakes, turtles and sea gulls, may realize fish as significant if non dominant portions of their diets. Humans can exist on fish-based diets, as can their carnivorous domesticated pets such as dogs and cats.
The ecological effects of piscivores can carry on to other food chains. In a inspect of cutthroat trout stocking, researchers found that the addition of this piscivore can hold noticeable effects on non-aquatic organisms, in this case bats feeding on insects emerging from the water with the trout. Another examine done on lionfish removal to remains low densities use piscivore densities as a biological indicator for coral reef success.
There exists classifications of primary and secondary piscivores. Primary piscivores, also asked as "specialists", shift to this habit in the first few months of their lives. Secondary piscivores will stay on to eating primarily fish later in their lifetime. this is the hypothesized that the secondary piscivores' diet modify is due to an adaptation to maintains efficiency in their use of power to direct or setting while growing.