dominant fishes are of the families Myctophidae and gonostomatidae, for more see Biology of fishes by Bond.
The mesopelagic zone of the ocean is also known as the twilight zone. There aren't really any plants in this zone on account of the little light that is produced.
How much sunlight is in the mesopelagic zone
-The Epipelagic zone (sunlight zone) -The Mesopelagic zone (twilight zone) -The Bathypelagic zone (midnight 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).
Yes, it is.
In the mesopelagic
also called twilight zone, it is the zone between 100 and 1000m depth. In this zone you don't have primary production (no light, no photosynthesis) but you have all the flux of matter that comes from the surface (fecal pellets, diatoms aggregates, marine snow...). This is the zone where you have all the remineralization processes by the microbial loop and by the zooplankton, so it will determine which part of the CO2 fixed in surface (epipelagic, euphotic zone), that will be sequestrated in the ocean floor and which part will be remineralized (and reinjected to the surface through e.g. winter mixing or mixing/transport by animals) -> this zone is of extreme importance in the phenomenon that we call "oceanic biological pump". A quarter of the CO2 produce each day by humans goes to the ocean -> what are the capacities of the ocean to stock CO2? Is it getting saturated? Can we accelerate the pumping of carbon by fertilizing ocean surface? what will be the role of ocean in global warming? ... All answers need a deep understanding of the mesopelagic zone, one of the less known zone of the ocean!
Animals in this zone have adapted to life in near darkness, cold water and high pressure. Some animals that live in the mesopelagic zone are: angel shark brittle star copepod ceolocanth clams crabs cuttlefish eels echinoderms (sea stars) gastropods gray whales greenland shark krill lobsters octopus plankton
HATCHET FISH AND VIPER FISH LIVE IN THE THERMOLINE OR TRANSITION ZONE, I JUST FINESHED A PROJECT ON IT WHICH I GOT A 100 ON IT , SO I HOPE THIS HELPS U OUT.
the mesopelagic zone
Electric eels live in fresh waters of the Amazon and Orinoco Rivers, the basins in South America, in river floodplains, swamps, creeks and coastal plains. They often live on muddy bottoms in calm water and in stagnant rivers. They are a FRESHWATER species. The name "electric eel" is also a misnomer, as they are more related to the Catfish than the Eel.
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