Definitions for aphotic zone
aphot·ic zone

WiktionaryRate this definition:0.0 / 0 votes

1. aphotic zonenoun

   that part of the deep body of an ocean or lake that receives insufficient sunlight for photosynthesis to be possible

WikipediaRate this definition:0.0 / 0 votes

1. Aphotic zone

   The aphotic zone (aphotic from Greek prefix ἀ- + φῶς "without light") is the portion of a lake or ocean where there is little or no sunlight. It is formally defined as the depths beyond which less than 1 percent of sunlight penetrates. Above the aphotic zone is the photic zone, which consists of the euphotic zone and the disphotic zone. The euphotic zone is the layer of water in which there is enough light for net photosynthesis to occur. The disphotic zone, also known as the twilight zone, is the layer of water with enough light for predators to see but not enough for the rate of photosynthesis to be greater than the rate of respiration. The depth at which less than one percent of sunlight reaches begins the aphotic zone. While most of the ocean's biomass lives in the photic zone, the majority of the ocean's water lies in the aphotic zone. Bioluminescence is more abundant than sunlight in this zone. Most food in this zone comes from dead organisms sinking to the bottom of the lake or ocean from overlying waters. The depth of the aphotic zone can be greatly affected by such things as turbidity and the season of the year. The aphotic zone underlies the photic zone, which is that portion of a lake or ocean directly affected by sunlight.

WikidataRate this definition:2.7 / 3 votes

1. Aphotic zone

   The aphotic zone is the portion of a lake or ocean where there is little or no sunlight. It is formally defined as the depths beyond which less than 1% of sunlight penetrates. Consequently, bioluminescence is essentially the only light found in this zone. Most food comes from dead organisms sinking to the bottom of the lake or ocean from overlying waters. The depth of the aphotic zone can be greatly affected by such things as turbidity and the season of the year. The aphotic zone underlies the photic zone, which is that portion of a lake or ocean directly affected by sunlight.

How to pronounce aphotic zone?

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How to say aphotic zone in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of aphotic zone in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of aphotic zone in Pythagorean Numerology is: 6

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Aphotic_Zone
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Aphotic_Zone
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=aphotic zone