APAKAH MAKSUD EUPHOTIC dalam CORSICA?
Zon fotik
Zon photik, zon euphotic, atau zon cahaya matahari adalah kedalaman air di dalam tasik atau lautan yang terdedah kepada cahaya matahari yang mencukupi untuk terjadi fotosintesis. Ia memanjang dari permukaan ke kedalaman di mana intensiti cahaya jatuh ke satu peratus daripada itu di permukaan, yang dipanggil kedalaman euphotic. Oleh itu, ketebalannya bergantung kepada tahap pengecilan cahaya dalam lajur air. Kedalaman euphotic yang tipikal berbeza dari hanya beberapa sentimeter di tasik eutropik yang sangat keruh, hingga kira-kira 200 meter di lautan terbuka. Ia juga berbeza-beza dengan perubahan bermusim dalam kekeruhan. Oleh kerana zon photik adalah di mana hampir semua produktiviti utama berlaku, kedalaman zon photik umumnya berkadar dengan tahap produktiviti utama yang berlaku di kawasan lautan itu. Sekitar 90% daripada semua kehidupan marin tinggal di zon photik. Sebilangan kecil pengeluaran utama dihasilkan jauh di dalam zon abyssal di sekitar lubang-lubang hidroterma yang wujud di sepanjang rabung tengah laut. Zon yang meluas dari pangkal zon euphotic hingga kira-kira 200 meter kadang-kadang dipanggil zon disphotic.
Definisi euphotic dalam kamus Corsica
Takrif euphotic dalam kamus ini menandakan atau berkaitan dengan bahagian paling atas laut atau tasik ke kira-kira 100 meter kedalaman, yang menerima cahaya yang cukup untuk membolehkan fotosintesis berlaku.
CORSICA BUKU YANG BERKAIT DENGAN «EUPHOTIC»
Ketahui penggunaan
euphotic dalam pilihan bibliografi berikut. Buku yang berkait dengan
euphotic dan ekstrak ringkas dari yang sama untuk menyediakan konteks penggunaannya dalam kesusasteraan Corsica.
1
Ocean Biogeochemistry: The Role of the Ocean Carbon Cycle in ...
The method hinges on determining the net biologically produced O2 in the
euphotic zone and calculating its flux across the air-sea interface with gas
exchange models. The instantaneous rates will reflect average rates during the
prior 2-3 ...
2
Phytoplankton and Equilibrium Concept: The Ecology of ...
In contrast, similarity indices from all the euphotic layers never reached 60% and
were usually significantly lower even if biovolume net changes were around zero.
This result confirmed non-steady state assemblages at the epilimetic layer in ...
International Association of Phytoplankton Taxonomy and Ecology. Workshop, Luigi Naselli-Flores, Judit Padisák,
2003
3
Nitrogen in the Marine Environment
... Spring Spring Spring Summer/Fall March Spring Spring Winter Summer Spring
Summer Fall May May May Spring–Mar Spring–Mar Winter/Spring Spring–Mar to
May Surface Euphotic zone Surface Surface Euphotic zone Euphotic zone 1 m ...
Douglas G. Capone, Deborah A. Bronk, Margaret R. Mulholland,
2008
4
Long-term Limnological Research and Monitoring at Crater ...
Primary productivity, measured as 14C-bicarbonate incorporation into plankton
retained by 0.45 lm pore-size filters, varied from an euphotic zone integrated
value of 17.8 mg C m–2 h–1 during July, 1997 to 80.7 mg C m–2 h–1 during July,
...
Gary L. Larson, Robert William Collier, Mark W. Buktenica,
2007
5
Lake Ecosystem Ecology: A Global Perspective
of surface irradiance Aphotic Euphotic 0.01% Figure 5 Illustration of the division
of a lake into euphotic and aphotic zones. The euphotic zone, which is the lake
volume within which positive net photosynthesis can occur, corresponds ...
6
Lake Stechlin: A Temperate Oligotrophic Lake
The. DIP. concentration. in. the. euphotic. zone. in. Lake. Stechlin. during. the.
year. lies. below 4 mg P , irr3; as a rule there are values of or below l mg P • irr3 (
Fig. 4.2). Throughout the winter an average of 2mg P -irr3 is found. In some years
...
Composite samples from the euphotic zone collected 1 to 7 times from May to
Aug. 1983-86. S.E. = standard error. notes. *n = 7; bn = 4; cn source Prepas et al.
n.d. 1;dn 2 Year Figure 4. Water level of Long Lake, 1983 to 1987. source Alta.
Patricia Mitchell, Ellie E. Prepas,
1990
8
Aquatic Pollution: An Introductory Text
Certain kinds of pollution associated with human activities may reduce the depth
of the euphotic zone by increasing the turbidity of the water. The result is a
decrease in net community production and sometimes a dramatic change in the ...
9
Climate System Modeling
The fact that phosphate and nitrate are not everywhere depleted in the euphotic
zone tells us that the organic matter pump is not operating at peak efficiency. As
discussed in Sec. 16.2, models suggest that surface nutrient concentrations, ...
10
The Application of Ichnology to Palaeoenvironmental and ...
For shallow euphotic zones I and II the endolithic communities are influenced by
both photic and hydro- dynamic factors. For this reason, the photic and
hydrodynamic zonation units are identical. Shallow euphotic zone III
encompasses well- ...
BARANGAN BERITA YANG TERMASUK TERMA «EUPHOTIC»
Ketahui apa yang diterbitkan oleh akhbar nasional dan antarabangsa dan cara istilah
euphotic digunakan dalam konteks perkara berita berikut.
Deep-sea corals are deep-sea treasures
Deep-sea corals, as the name implies, live in the deeper waters of our oceans and mostly out of the euphotic zone, the top few meters of the ... «Delmarva Daily Times, Jul 15»
Artist offering found-art session in July
His work reflects his intense interest in flying kites, oceanography and the euphotic depth, the point in the ocean at which light intensity falls to ... «Springfield News-Leader, Jun 15»
Fish, Crabs Are Losing Homes as Oceans Lose Oxygen
Euphotic zone. Oxygen can get into the sea as wind and waves stir the surface or through photosynthesis, which takes place in surface regions ... «National Geographic, Jun 15»
Alias Dance Project Premieres F.STOP / LET THE LIGHT IN in New …
... choreographer Francesca Chudnoff and one new work by Lauren Cook, a remount of Euphotic Depth (Lauren Cook & Troy Feldman, 2014). «Broadway World, Apr 15»
Global Warming: Out of Sight, Peace of Mind
The oceans make up a large portion of the biosphere with most life occurring in the Euphotic Zone, which reaches to a depth of about 100 ... «Energy Collective, Mac 15»
NOAA: Arctic Air Warms As Greenland Melt Rate Slows
... has been regionally variable and highly dependent upon the distribution of nutrients in the euphotic zone throughout the Arctic Ocean. «reportingclimatescience.com, Dis 14»
Bottoms up: how whale poop helps feed the ocean
Uneaten phytoplankton eventually die and sink from the euphotic zone – the top 200-300m where light can penetrate – transferring the carbon ... «The Conversation, Ogo 14»
Ice Sheet Melt Iron May Slow Global Warming - Study
... Greenland Ice Sheet catchment reveal the potential for globally significant export of labile iron fractions to the near-coastal euphotic zone. «reportingclimatescience.com, Mei 14»
Hash oil explosions rise with legalized marijuana
Devotees say one or two drops can produce a more euphotic high than a joint. But home cooking is dangerous. Authorities who track ... «KRDO, Mei 14»
Satellites Give Estimate Of Sea Life Carbon Capture
Light blue waters are the euphotic zone, while the darker blue waters represent the twilight zone. Courtesy: U.S. Joint Global Ocean Flux Study. «reportingclimatescience.com, Mac 14»