<P> The mesopelagic ( Greek μέσον , middle ) ( also known as the middle pelagic or twilight zone ) is that part of the pelagic zone that extends from a depth of 200 to 1000 metres ( ~ 660 to 3300 feet ) below the ocean surface . It lies between the photic epipelagic above and the aphotic bathypelagic below , where there is no light at all . </P>
<P> The mesopelagic ( Greek μέσον , middle ) ( also known as the middle pelagic or twilight zone ) is that part of the pelagic zone that extends from a depth of 200 to 1000 metres ( ~ 660 to 3300 feet ) below the ocean surface . It lies between the photic epipelagic above and the aphotic bathypelagic below , where there is no light at all . </P>
how deep is the twilight zone in the ocean
how deep is the twilight zone in the ocean
200 to 1000 metres ( ~ 660 to 3300 feet ) below the ocean surface
200 to 1000 metres ( ~ 660 to 3300 feet ) below the ocean surface