Kutanga kubva pamucheto wesherefu yekondinendi, zvinogona kunzi zvinopinda mu kudzika kukuru, inozivikanwa nekushayikwa kwechiedza. Ndiyo bathyal nzvimbo, iyo inosanganisira kondinendi yekondinendi, inoteverwa nenzvimbo yeabyssal bani ine anopfuura 3.000 metres, uye nzvimbo yehadal, yakafanana neyeMariana migero.
Idzi nzvimbo dzakadzika dzine varombo marine ichthyofauna nekuda kwekushaya chikafu, yakadzika oxygen oxygen, yakanyanya kudzvinyirira uye yakanyanya yakadzika tembiricha.
MuMediterranean, kuderera kwacho kunonyanya kukosha, Kupfuura 1000 metres kudzika chete marudzi makumi matatu nematanhatu akanyorwa de peces. Zvinhu zvakashata zvakanyanya zvezvakatipoteredza zvinowedzerwa mugungwa iri nekudzika kweStrait yeGibraltar, iyo inodzivirira kupfuura kwemarudzi akadzika kubva kuAtlantic.
ari mesopelagic uye bathypelagic mhando, ari pakati pe200 ne1000 m, vanopa mamwe maumbirwo asinganzwisisike anotsauka zvishoma kubva pane iyo pfungwa yakanaka yehove chaiyo. Muenzaniso wakanaka weiyi isingawanzo morphology ndeye hove dzedemo. Zvizhinji de peces Pakudzika kukuru uku vakashongedzerwa nenhengo dzinopenya kana mafotophores, ayo anogona kushandira zvese zvekuzivikanwa intraspecific uye kukwezva zvingangobatwa.
Kazhinji, iwo mashoma muhukuru. Kune, zvisinei, zvinosarudzika, semuenzaniso, 'regalecus glesneinogona kusvika nekupfuura kunyange matatu metres pakureba. Dzakajairika mesoplegic mhuri dziri, pakati pevamwe, iyo mytophids, the scrawny, the gonostomatids, the unopinza and the zvipo.
Mazhinji ehove idzi anoratidza kutama kwakatwasuka, uye famba husiku kune epipelagic mazinga. Vamwe vanoenda kure kusvika kumamirioni chiuru husiku, kutenderera kwemanheru kwakamira pakati pemamita mazana matatu nemazana manomwe kwakajairika mune mytophids mazhinji.
ari betonic marudzi yenzvimbo ino inowanzo kuve pamusoro pe1000 m yekudzika. Pakati pezviuru zviviri kusvika zviuru zvitatu zvemamita ekudzika huwandu hwesango hwakaderedzwa kusvika kunomwe chete muMediterranean.