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How much sunlight is in the mesopelagic zone
Yes, it is.
In the mesopelagic
-The Epipelagic zone (sunlight zone) -The Mesopelagic zone (twilight zone) -The Bathypelagic zone (midnight zone)
The twilight zone does not have a fixed salinity. ocean waters of varying salinity move through the twilight zone as they circulate.
the salinity in the midnight zone is a kind of high amount
dominant fishes are of the families Myctophidae and gonostomatidae, for more see Biology of fishes by Bond.
the mesopelagic zone
The piglet squid lives in the epipelagic zone (sunlight zone) until they are fully matured when they descend in to the mesopelagic zone (twilight zone).
epipelagic zone (sunlight zone)- as deep as 200 meters, until they reach full maturation, then the will descend into the mesopelagic zone (twilight zone).
Mesopelagic
The amount of salinity that there is in the sunlight zone is about 3.5 percent. About 90 percent of sea life also resides in this zone.