What is the fundamental cause of conservation concern regarding the American eel's survival?
Answer
Obstacles like dams impeding migration
The primary threats stem from human-made barriers, such as dams and water control structures, which block both the upstream journey of glass eels and the return migration of silver eels.
Related Questions
What term describes the American eel's life cycle, which involves maturing in fresh water and returning to the ocean to reproduce?Where do adult American eels spawn and ultimately perish?What name is given to the tiny, leaf-shaped larval stage of the American eel?During which life stage does the American eel spend the bulk of its existence, often dwelling far inland?Which significant physiological change occurs as the yellow eel transforms into a silver eel preparing for its migration back to the ocean?What unique locomotion ability allows American eels to sometimes colonize waters that are not directly connected to the main river channels?What range covers the distribution of the American eel along the Atlantic slope drainages?What is the fundamental cause of conservation concern regarding the American eel's survival?What is the general risk level associated with American eels attacking humans in the wild?What common food items, besides small fish, do American eels consume as opportunistic bottom-dwelling predators?