ákerfisbreytinga
Akerfisbreytinga is an Icelandic term that translates to "fish transformation" or "fish metamorphosis." It refers to the biological process by which certain fish species undergo significant physical and physiological changes as they transition from one life stage to another. This is most commonly observed in species that have complex life cycles, often involving a change in habitat or diet.
The most well-known example of akerfisbreytinga is seen in the life cycle of the European eel (Anguilla
Other fish species may also exhibit forms of akerfisbreytinga, such as the dramatic changes seen in flatfish