Photic zone
The photic zone, euphotic zone (Greek for "well lit": εὖ "well" + φῶς "light"), or sunlight zone is the depth of the water in a lake or ocean that is exposed to such intensity of sunlight which designates compensation point, i.e. the intensity of light at which the rate of carbon dioxide uptake, or equivalently, the rate of oxygen production, is equal to the rate of carbon dioxide production, equivalently to the rate of oxygen consumption, reducing thus the net carbon dioxide assimilation to zero.
It extends from the surface down to a depth where light intensity falls to one percent of that at the surface, called the euphotic depth. Accordingly, its thickness depends on the extent of light attenuation in the water column. Typical euphotic depths vary from only a few centimetres in highly turbid eutrophic lakes, to around 200 metres in the open ocean. It also varies with seasonal changes in turbidity.
Since the photic zone is where almost all of the photosynthesis occurs, the depth of the photic zone is generally proportional to the level of primary production that occurs in that area of the ocean. About 90% of all marine life lives in the photic zone. A small amount of primary production is generated deep in the abyssal zone around the hydrothermal vents which exist along some mid-oceanic ridges.
Podcasts:
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by Fatty Koo
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by Fatty Koo
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by Fatty Koo
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by Fatty Koo
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by Fatty Koo
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by Fatty Koo
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by Fatty Koo
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by Fatty Koo
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by Fatty Koo
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by Fatty Koo
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by Fatty Koo
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by Fatty Koo
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by Fatty Koo
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by Fatty Koo
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by Fatty Koo
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by Fatty Koo
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by Fatty Koo
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by Wideawake
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by Wideawake
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by Wideawake
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by Wideawake
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by Wideawake
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by Wideawake
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by Wideawake
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by Wideawake
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by Wideawake
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by Wideawake
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by Wideawake
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by Wideawake
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by Wideawake
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by Wideawake
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by Wideawake
Princess In Disguise
by: Fatty Koo(Verse 1:)
Like a perfect ten in a magazine were the girls that caught my eyes
Sophisticated queen with the sex appeal
Beauty no less than a dime
But the girl that really caught my heart wasn't anything like that at first glance you wouldn't see it...
But she was really bad
-papasito, venconmigo
-dejame demostrar a ti
-que tu no puedes ver
-la mujer (marya-dentro) de mi
(Chorus:)
She's just an average girl
Ain't got no mink and pearls still she's like royalty
She's a princess in disguise
She's got a heart of gold
Within a tale untold, that's where her beauty lies
She's a princess in disguise
Her smile is like a twinkle in the sky
A diamond in the ruff with the heart of a child
Her true beauty is more then skin deep
Because the essence of a women is hidden underneath
(Chorus)
(Verse 2:)
-tomame al castillo que estan en los nubes
Hasme princesa de tu corazon, mi serviente de amor
Desde alli, viajar a otros lugares
Para vivir momentos inolvidables
You stole my heart and sealed it with a kiss
No matter where i look, it can't get no better than this
My princess, my goddess, you came from up above
I'll treat you like royalty, with all my love
Your heart is pure, together we explore
We build on honesty, one solid core
You caught my eye, i can't deny
You're in my heart, you are my pride