Answer:
Detritus and Other nekton
Step-by-step explanation:
The two food sources of deep-water nekton are:
Detritus: This is the decaying remains of organisms that have sunk from the surface waters. Detritus is an important food source for many deep-water nekton, such as sea cucumbers, scavenger fish, and crabs.
Other nekton: Deep-water nekton also eat each other. This is known as predation. Some examples of deep-water nekton predators include sharks, squid, and large fish such as tuna.
Deep-water nekton are often adapted to their dark environment. For example, many deep-water nekton have large eyes to help them see in low light conditions. Some deep-water nekton also have bioluminescence, which is the ability to produce their own light. This can be used to attract prey or communicate with other members of their species.
Deep-water nekton play an important role in the marine ecosystem. They help to transfer energy from the surface to the deep sea and they are a food source for many other marine animals.