{"id":13146,"date":"2022-06-07T00:00:00","date_gmt":"2022-06-07T00:00:00","guid":{"rendered":"https:\/\/kcsensor.com\/index.php\/2022\/06\/07\/about-dissolved-oxygen-in-water-part-2\/"},"modified":"2026-09-23T06:43:37","modified_gmt":"2026-09-23T06:43:37","slug":"about-dissolved-oxygen-in-water-part-2","status":"publish","type":"post","link":"https:\/\/www.kcsensor.com\/nl\/about-dissolved-oxygen-in-water-part-2\/","title":{"rendered":"Opgelost zuurstofdistributie &#038; Dagelijkse cycli in vijvers"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Opgelost zuurstof (DO) is zelden uniform over een vijver. Het verandert met diepte, met locatie ten opzichte van windrichting, en dramatisch gedurende de loop van een enkele dag. Inzicht in deze patronen <a href=\"\/nl\/1-about-dissolved-oxygen-in-water\/\" rel=\"noreferrer noopener\">Deel 1<\/a> naast waar zuurstof vandaan komt en waar het heen gaat is wat laat operators anticiperen op een hypoxie gebeurtenis in plaats van gewoon te reageren op een.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img data-dominant-color=\"76a0b6\" data-has-transparency=\"false\" fetchpriority=\"high\" decoding=\"async\" width=\"1000\" height=\"667\" src=\"https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.1-Cross-section-diagram-of-a-pond-showing-high-dissolved-oxygen-near-the-surface-and-low-dissolved-oxygen-near-the-bottom-during-thermal-stratification.webp\" alt=\"2.1 Doorsnedediagram van een vijver met hoog opgeloste zuurstof aan het oppervlak en laag opgeloste zuurstof aan de onderkant tijdens thermische stratificatie\" class=\"wp-image-24924 not-transparent\" style=\"--dominant-color: #76a0b6; aspect-ratio:1.4992859496869164;object-fit:cover;width:800px;height:auto\" srcset=\"https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.1-Cross-section-diagram-of-a-pond-showing-high-dissolved-oxygen-near-the-surface-and-low-dissolved-oxygen-near-the-bottom-during-thermal-stratification.webp 1000w, https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.1-Cross-section-diagram-of-a-pond-showing-high-dissolved-oxygen-near-the-surface-and-low-dissolved-oxygen-near-the-bottom-during-thermal-stratification-300x200.webp 300w, https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.1-Cross-section-diagram-of-a-pond-showing-high-dissolved-oxygen-near-the-surface-and-low-dissolved-oxygen-near-the-bottom-during-thermal-stratification-768x512.webp 768w, https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.1-Cross-section-diagram-of-a-pond-showing-high-dissolved-oxygen-near-the-surface-and-low-dissolved-oxygen-near-the-bottom-during-thermal-stratification-18x12.webp 18w, https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.1-Cross-section-diagram-of-a-pond-showing-high-dissolved-oxygen-near-the-surface-and-low-dissolved-oxygen-near-the-bottom-during-thermal-stratification-600x400.webp 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Verticale verdeling: Waarom de bodem uit zuurstof eerst draait<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Op een zonnige middag kan het oppervlaktewater in een productieve vijver 200% meer zuurstofverzadiging bereiken, aangedreven door intense fytoplankton fotosynthese in de bovenste fotische zone. Bottom water, daarentegen, zit vaak op slechts 40\/80% verzadiging, of lager. Tussen de twee valt DO scherp af door een overgangslaag.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Twee dingen drijven deze split:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Lichte zuurstofproductie is geconcentreerd nabij het oppervlak.<\/strong> Fotosynthese pieken in de ondergrond zone waar de lichtintensiteit is sterk genoeg om het te drijven, maar niet zo sterk dat het remt<\/li>\n\n\n\n<li><strong>Thermische stratificatieblokken mengen.<\/strong> Omdat oppervlaktewater warmte absorbeert, vormt een thermocline zich tussen de warme oppervlaktelaag en koeler bodemwater. Zonder wind of mechanische menging om deze gelaagdheid te breken, zuurstofrijk oppervlaktewater kan alleen de bodem bereiken door langzame diffusie .. terwijl zinken organisch puin gevangen raakt aan de thermocline, waar bacteri\u00ebn vermenigvuldigen en zuurstof snel consumeren, waardoor het tekort onder.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">De kloof tussen de maximale en minimale DO waarden in de waterkolom wordt de <strong>waterlaagverschil<\/strong>. Het groeit tijdens perioden van hoge primaire productiviteit en kalm weer, en krimpt ..of verdwijnt ..eenmaal verticale mengen (van wind, regen, of beluchting) breekt de stratificatie. Dit is precies de opstelling die leidt tot onderwater zuurstof crashes, een veel voorkomend probleem in <a href=\"\/nl\/wastewater\/\" rel=\"noreferrer noopener\">afvalwater<\/a> lagunes en stocked <a href=\"\/nl\/aquaculture\/\" rel=\"noreferrer noopener\">aquacultuur<\/a> Vijvers hetzelfde.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">'s Nachts keert het patroon om: met het stoppen van de fotosynthese wordt alleen de ademhaling zuurstof verbruikt, de oppervlaktekoeling erodeert het dichtheidsverschil dat de lagen uit elkaar hield, en de waterkolom neigt naar een meer uniforme (en gestaag dalende) DO niveau door de nacht.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Horizontale verdeling: de rol van wind<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Zonder wind is horizontale DO verdeling in een vijver vrij uniform, zelfs als verticale verdeling niet is. Zodra de wind in, zuurstofrijk oppervlaktewater wordt geduwd naar de benedenwindse kust, terwijl lager-zuurstof water accumuleert langs de opwindende kust .. wat betekent dat vis en schelpdieren in de buurt van een opwindbank zijn een hoger risico van lage zuurstofspanning. Dezelfde oneffenheid toont zich bij rivierinstromen, vijverinlaten\/uitlaten, en bij geconcentreerde afvalingangen, en binnen net kooien waar slechte circulatie kan verlaten DO ver onder het omringende open water, zelfs wanneer het water net buiten de kooi is goed zuurstof.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img data-dominant-color=\"9fc9cc\" data-has-transparency=\"false\" decoding=\"async\" width=\"1000\" height=\"667\" src=\"https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.2-Top-down-diagram-of-a-pond-showing-wind-pushing-oxygen-rich-surface-water-toward-the-downwind-shore-while-the-upwind-shore-runs-low-on-oxygen.webp\" alt=\"2.2 Top-down diagram van een vijver met wind die zuurstofrijk oppervlaktewater naar de benedenwindse kust duwt terwijl de opwindende oever weinig zuurstof bevat\" class=\"wp-image-24925 not-transparent\" style=\"--dominant-color: #9fc9cc; width:850px;height:auto\" srcset=\"https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.2-Top-down-diagram-of-a-pond-showing-wind-pushing-oxygen-rich-surface-water-toward-the-downwind-shore-while-the-upwind-shore-runs-low-on-oxygen.webp 1000w, https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.2-Top-down-diagram-of-a-pond-showing-wind-pushing-oxygen-rich-surface-water-toward-the-downwind-shore-while-the-upwind-shore-runs-low-on-oxygen-300x200.webp 300w, https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.2-Top-down-diagram-of-a-pond-showing-wind-pushing-oxygen-rich-surface-water-toward-the-downwind-shore-while-the-upwind-shore-runs-low-on-oxygen-768x512.webp 768w, https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.2-Top-down-diagram-of-a-pond-showing-wind-pushing-oxygen-rich-surface-water-toward-the-downwind-shore-while-the-upwind-shore-runs-low-on-oxygen-18x12.webp 18w, https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.2-Top-down-diagram-of-a-pond-showing-wind-pushing-oxygen-rich-surface-water-toward-the-downwind-shore-while-the-upwind-shore-runs-low-on-oxygen-600x400.webp 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>De dagelijkse (dagelijke) cyclus van opgeloste zuurstof<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Op een heldere dag volgt DO in een vijver een voorspelbaar ritme: 's ochtends en 's middags rijzend als fotosynthese boven ademhaling uitstijgt, piekend in de <strong>late middag tot vroege avond<\/strong>, dan dalen gestaag vannacht als alleen ademhaling blijft. De <strong>het laagste punt van de gehele 24-uurscyclus vlak voor zonsopgang<\/strong> Dat is precies de reden waarom vissen op het hoofd zweven gedrag en pre-dawn sterfte gebeurtenissen zijn zo gebruikelijk in slecht uitgeruste vijvers.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img data-dominant-color=\"f1f3f5\" data-has-transparency=\"false\" decoding=\"async\" width=\"1024\" height=\"586\" src=\"https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.3-24_hour_dissolved_oxygen_cycle_illustrative-1024x586-1.webp\" alt=\"2.3 24 uur opgeloste zuurstof cyclus illustratief\" class=\"wp-image-24926 not-transparent\" style=\"--dominant-color: #f1f3f5; width:800px;height:auto\" srcset=\"https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.3-24_hour_dissolved_oxygen_cycle_illustrative-1024x586-1.webp 1024w, https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.3-24_hour_dissolved_oxygen_cycle_illustrative-1024x586-1-300x172.webp 300w, https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.3-24_hour_dissolved_oxygen_cycle_illustrative-1024x586-1-768x440.webp 768w, https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.3-24_hour_dissolved_oxygen_cycle_illustrative-1024x586-1-18x10.webp 18w, https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.3-24_hour_dissolved_oxygen_cycle_illustrative-1024x586-1-600x343.webp 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>De vijf regels van opgeloste zuurstof<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Deze vijf relaties vatten samen hoe DO reageert op gemeenschappelijke milieuvariabelen:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Hogere temperatuur \u2192 lagere DO<\/strong> (inverse relatie). Warmer water houdt gewoon minder opgelost gas vast.<\/li>\n\n\n\n<li><strong>Grotere diepte \u2192 lagere DO<\/strong> (inverse relatie). Waterdruk neemt toe met diepte, en zuurstof uit de lucht dringt geleidelijk minder effectief binnen; onder ongeveer 200 m in zeewater, geen fotosynthese optreedt helemaal.<\/li>\n\n\n\n<li><strong>Lagere atmosferische druk \u2192 lagere DO<\/strong> (directe relatie). Vallende barometrische druk . . het lage weer dat in de zomer gebruikelijk is, vermindert de drijvende kracht voor zuurstof om op te lossen in water.<\/li>\n\n\n\n<li><strong>Groter wateroppervlak \u2192 hoger DO<\/strong> (directe relatie). Meer oppervlakte in contact met lucht betekent meer kans voor diffusie, dat is een deel van waarom grote meren en reservoirs zelden de drijvende-hoofd problemen gezien in kleine, ondiepe sloten.<\/li>\n\n\n\n<li><strong>Sterkere wind \u2192 hoger DO<\/strong> (directe relatie), tot aan de verzadigingslimiet, verhoogt de wind de turbulentie van het oppervlak en verandert een statisch oppervlak in een bewegend oppervlak, beide versnellen de diffusie.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Wanneer opgelost zuurstofpieken en crashes<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Maximum<\/strong> Meestal gebeurt in het oppervlaktewater in de late namiddag op zonnige zomerdagen, na een volledige dag van verzamelde foto-synthetische zuurstofproductie<\/li>\n\n\n\n<li><strong>Minimum<\/strong> Meestal gebeurt vlak voor zonsopgang, vooral in de buurt van de bodem, na een volle nacht van ademhaling zonder fotosynthetische aanvulling.<\/li>\n\n\n\n<li>Uitgebreide thermische stratificatie kan laten upwind bodem water kritisch laag, zelfs terwijl de rest van de vijver ziet er prima op een oppervlak lezing . . een onregelmatigheid die alleen oppervlakte controles zal missen volledig.<\/li>\n\n\n\n<li>Plotselinge weersverschuiving<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Praktische implicaties:<\/strong> beluchters zijn het meest waardevol wanneer ze 's middags op hete, rustige dagen (om stratificatie op te breken voordat het zich verdiept) en opnieuw in de vroege ochtenduren voor zonsopgang (om het dagelijkse lage punt te bedekken) worden uitgevoerd in plaats van alleen worden ingeschakeld nadat de vissen al stress vertonen.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Oververzadiging en gasbelziekte<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Supersaturatie: DO boven 100% van de evenwichtswaarde vindt plaats wanneer een snelle temperatuurstijging, een plotselinge drukdaling of mechanische beluchting sneller zuurstof toevoegt dan het opnieuw met de atmosfeer kan gelijkrichten. Matige oververzadiging is over het algemeen onschadelijk, maar aanhoudende hoge oververzadiging (bijvoorbeeld ongeveer 192% verzadiging, ruwweg 14,4 mg\/l) kan gasbelziekte veroorzaken bij vissen, vooral gebakken: gasbelletjes vormen in de darmen, kieuwen en lichaamsoppervlak, wat leidt tot verlies van drijfvermogenscontrole, exoftalmo's, en in ernstige gevallen de dood. Als gasbel ziekte verschijnt, de standaard reactie is om aangetaste vis te verplaatsen naar water met een lagere DO verzadiging, die meestal symptomen snel oplost. Dit is meestal een risico tijdens zuiver zuurstofhoudende bakkerij transport of agressieve mechanische beluchting, en wordt zelden gezien onder natuurlijke vijver omstandigheden.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img data-dominant-color=\"cbe3ef\" data-has-transparency=\"false\" loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"667\" src=\"https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.4-Paddlewheel-aerator-running-in-an-aquaculture-pond-at-midday-to-break-up-dissolved-oxygen-stratification.webp\" alt=\"2.4 Paddlewheel beluchter die rond de middag in een aquacultuurvijver rondloopt om opgeloste zuurstofstratificatie op te breken\" class=\"wp-image-24927 not-transparent\" style=\"--dominant-color: #cbe3ef; width:800px;height:auto\" srcset=\"https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.4-Paddlewheel-aerator-running-in-an-aquaculture-pond-at-midday-to-break-up-dissolved-oxygen-stratification.webp 1000w, https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.4-Paddlewheel-aerator-running-in-an-aquaculture-pond-at-midday-to-break-up-dissolved-oxygen-stratification-300x200.webp 300w, https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.4-Paddlewheel-aerator-running-in-an-aquaculture-pond-at-midday-to-break-up-dissolved-oxygen-stratification-768x512.webp 768w, https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.4-Paddlewheel-aerator-running-in-an-aquaculture-pond-at-midday-to-break-up-dissolved-oxygen-stratification-18x12.webp 18w, https:\/\/www.kcsensor.com\/wp-content\/uploads\/2026\/09\/2.4-Paddlewheel-aerator-running-in-an-aquaculture-pond-at-midday-to-break-up-dissolved-oxygen-stratification-600x400.webp 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Waarom Oxygen Thresholds Materie voor Aquatic Life oplossen<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Verschillende soorten tolereren verschillende minimum DO niveaus voordat de groei vertraagt, ademhaling wordt benadrukt, of de mortaliteit begint:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Soort<\/th><th>Normale groei (mg\/l)<\/th><th>Ademhalingsspanning (mg\/l)<\/th><th>Dodelijke drempel (mg\/l)<\/th><\/tr><\/thead><tbody><tr><td>Kruiskarper<\/td><td>2<\/td><td>1<\/td><td>0.1<\/td><\/tr><tr><td>Karper<\/td><td>4<\/td><td>1.5<\/td><td>0,2<\/td><\/tr><tr><td>Bigheadkarper<\/td><td>4<\/td><td>1.5<\/td><td>0,23<\/td><\/tr><tr><td>Dace<\/td><td>4<\/td><td>1.5<\/td><td>0,5<\/td><\/tr><tr><td>Graskarper<\/td><td>5<\/td><td>1.6<\/td><td>0,4<\/td><\/tr><tr><td>Haring<\/td><td>5<\/td><td>1.6<\/td><td>0.58<\/td><\/tr><tr><td>Zilverkarper<\/td><td>5.5<\/td><td>1.75<\/td><td>0,26<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">In het algemeen hebben de meeste gekweekte vissen een DO-waarde van meer dan ongeveer 4 mg\/l nodig voor niet-gestresste normale activiteit; 2 Naast directe hypoxie, lage DO staat ook ammoniak en nitriet toe beide zeer giftig, zelfs bij lage concentraties te accumuleren, wat de stress op voorraad. Faciliteiten die beide parameters volgen koppelen vaak een DO sensor met een <a href=\"\/nl\/product-category\/water-quality-sensor\/ammonia-ammonium-in-water-sensors\/\" rel=\"noreferrer noopener\">ammoniak\/ammoniumsensor<\/a> op hetzelfde meetstation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Toezicht Is de enige manier om deze patronen te vangen in de tijd<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Omdat DO zoveel varieert naar diepte, locatie en uur, vertelt een enkele spot-check overdag je bijna niets over het pre-dawn minimum aan de vijverbodem. Een vaste, continue <a href=\"\/nl\/portable-dissolved-oxygen-sensors-and-analyzers\/\" rel=\"noreferrer noopener\">sensor voor opgeloste zuurstof<\/a> met data logging of remote alarmen is wat eigenlijk een zich ontwikkelende crash vangen vaak uren voordat het anders zichtbaar zou worden als vis gedrag aan de oppervlakte. Dit is ook de logica achter Kacise. <a href=\"\/nl\/product-category\/wireless-water-quality-monitoring\/\" rel=\"noreferrer noopener\">draadloze monitoring van de waterkwaliteit<\/a> systemen, die een dalende DO trend automatisch kunnen markeren in plaats van dat iemand op het juiste moment een meter controleert. Deel 3 van deze serie bekijkt <a href=\"\/nl\/about-dissolved-oxygen-in-water-3\/\" rel=\"noreferrer noopener\">hoe deze sensoren werken<\/a>, en hoe te kiezen tussen de belangrijkste detectietechnologie\u00ebn op de markt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>FAQ<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-group is-layout-flow wp-container-core-group-is-layout-17f477d5 wp-block-group-is-layout-flow\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-b7d9c19b wp-block-group-is-layout-flex\" style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\"><div class=\"wp-block-safe-svg-svg-icon safe-svg-cover\" style=\"text-align: left;\">\n\t\t\t\t<div class=\"safe-svg-inside safe-svg-inline\" style=\"width: 32px; height: 32px; background-color: var(--wp--preset--color--); color: var(--wp--preset--color--); padding-top: ; padding-right: ; padding-bottom: ; padding-left: ; margin-top: ; margin-right: ; margin-bottom: ; margin-left: ;\"><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewbox=\"0 0 1024 1024\" version=\"1.1\" width=\"32\" height=\"32\"><path d=\"M358.70592 758.7456c-33.01888-30.9504-54.48448-68.19072-64.29056-111.7952-11.46752-50.99264-3.54176-99.89632 18.03264-146.9696 17.74592-38.71744 42.84416-72.6208 69.29024-105.6384 28.12416-35.1104 57.45792-69.28384 82.5088-106.77248 15.18592-22.7264 29.34016-46.01984 39.91552-71.3216 0.4928-1.1776 1.05856-2.33216 1.68064-3.44704 1.70624-3.05152 4.27008-4.57856 7.83872-4.57472 3.72224 0.00384 6.03648 1.98784 7.38048 5.14048 24.1536 56.64384 61.8368 104.25728 100.50816 151.27936 27.07712 32.92416 54.592 65.536 76.032 102.6944 17.06496 29.57568 30.71488 60.416 36.49408 94.25536 10.65856 62.4064-3.3728 119.11936-41.35808 169.50016-37.87136 50.22848-89.12384 79.04768-151.0592 86.68288-69.376 8.55424-130.6048-11.64928-182.97344-59.0336m234.77248-308.38784c-4.71168-6.65984-10.2016-12.57728-16.7936-17.41824-27.78368-20.40832-58.83648-24.52736-91.15392-15.51872-30.048 8.37376-52.27264 26.62144-60.46464 58.32832-3.8144 14.76096 11.6224 29.66528 26.5024 26.29632 10.26304-2.32448 15.936-9.09952 19.61472-18.3296 5.1968-13.0496 14.19776-22.25408 27.95136-25.984 7.39456-2.00576 14.9824-1.72672 22.71232-1.472 20.41088 0.672 41.17248 19.92576 34.42432 48.6016-2.8928 12.2944-11.34976 20.73344-19.96032 29.07392-9.1776 8.8896-19.29088 16.81408-27.35744 26.84928-10.16704 12.65024-16.73984 26.74816-16.91904 43.2064-0.1408 13.03552 7.54816 21.3248 20.28928 22.65344 12.3136 1.28256 20.4096-4.6528 22.51136-18.00192 2.26432-14.37952 9.792-25.08672 20.4608-34.2912 8.55168-7.37664 16.9856-14.91968 25.09824-22.77376 29.64992-28.70272 34.8224-67.61216 13.08416-101.21984M546.4448 689.152c3.58912-15.9744-8.8192-34.05568-25.41568-37.0368-18.91072-3.39584-37.376 9.43616-39.45856 27.424-1.87008 16.13824 10.0352 32.6208 25.66784 35.53536 17.69728 3.29984 34.2528-7.27168 39.2064-25.92256z\" fill=\"#d81e06\"><\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>V: Waarom is opgeloste zuurstof het laagst in de vroege ochtend?<\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-b7d9c19b wp-block-group-is-layout-flex\" style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\"><div class=\"wp-block-safe-svg-svg-icon safe-svg-cover\" style=\"text-align: left;\">\n\t\t\t\t<div class=\"safe-svg-inside safe-svg-inline\" style=\"width: 32px; height: 32px; background-color: var(--wp--preset--color--); color: var(--wp--preset--color--); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0;\"><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewbox=\"0 0 1024 1024\" version=\"1.1\" width=\"32\" height=\"32\"><path d=\"M501.0496 225.9008c1.9776-4.30848 3.3792-8.41984 5.65248-11.9744 3.82464-5.98656 11.03232-5.89184 13.73056 0.51968 27.92704 66.35136 74.78016 119.73888 119.27424 174.7456 25.23776 31.20128 49.71008 62.8992 68.15104 98.80448 17.57952 34.2272 28.4416 70.3424 29.28128 108.89088 0.8832 40.52608-9.22368 78.46144-30.06976 113.39008-32.99328 55.27936-80.94464 90.8096-143.59424 104.55296-76.60288 16.80256-145.1776-1.41696-203.41376-54.08384-39.3472-35.584-62.4128-80.41984-68.70272-133.44512-6.31808-53.26336 6.912-102.2336 32.6464-148.46336 21.2736-38.2208 48.8768-71.87584 76.31104-105.62432 32.3008-39.73248 64.4672-79.53536 89.2032-124.6592 3.9936-7.28576 7.57376-14.79808 11.53024-22.65344m-36.41216 378.90304c-15.41376-15.35232-30.78784-30.7456-46.26176-46.03648-6.16832-6.09536-10.1184-6.1056-16.38016-0.01024a1031.35872 1031.35872 0 0 0-22.57792 22.6496c-6.88768 7.13344-6.80448 9.34144 0.13696 16.43136 16.2624 16.6144 32.58112 33.17248 48.8448 49.78432 13.8752 14.17216 27.62752 28.46336 41.58464 42.55104 6.6816 6.7456 11.33696 6.4768 17.856-0.44032 1.16992-1.2416 2.26432-2.55232 3.38816-3.83616 40.47488-46.19008 80.93952-92.3904 121.43104-138.5664 12.512-14.26944 25.09056-28.48 37.664-42.69568 3.30496-3.7376 5.07136-7.7952 1.09696-11.89504-8.45696-8.72704-17.0624-17.3184-25.85088-25.71008-3.54688-3.38688-7.74016-3.2768-11.52256 0.06784-2.0736 1.83296-4.1024 3.73504-5.9776 5.7664-16.48256 17.85728-32.98944 35.69536-49.36704 53.64864-23.70688 25.98528-47.32544 52.0512-70.9568 78.1056-13.6 14.99648-9.64224 12.96512-23.10784 0.1856z\" fill=\"#21a529\"><\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> Planten en algen verbruiken zuurstof door ademhaling door de nacht heen, dus DO bereikt zijn dagelijkse minimum kort voor zonsopgang.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-b7d9c19b wp-block-group-is-layout-flex\" style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\"><div class=\"wp-block-safe-svg-svg-icon safe-svg-cover\" style=\"text-align: left;\">\n\t\t\t\t<div class=\"safe-svg-inside safe-svg-inline\" style=\"width: 32px; height: 32px; background-color: var(--wp--preset--color--); color: var(--wp--preset--color--); padding-top: ; padding-right: ; padding-bottom: ; padding-left: ; margin-top: ; margin-right: ; margin-bottom: ; margin-left: ;\"><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewbox=\"0 0 1024 1024\" version=\"1.1\" width=\"32\" height=\"32\"><path d=\"M358.70592 758.7456c-33.01888-30.9504-54.48448-68.19072-64.29056-111.7952-11.46752-50.99264-3.54176-99.89632 18.03264-146.9696 17.74592-38.71744 42.84416-72.6208 69.29024-105.6384 28.12416-35.1104 57.45792-69.28384 82.5088-106.77248 15.18592-22.7264 29.34016-46.01984 39.91552-71.3216 0.4928-1.1776 1.05856-2.33216 1.68064-3.44704 1.70624-3.05152 4.27008-4.57856 7.83872-4.57472 3.72224 0.00384 6.03648 1.98784 7.38048 5.14048 24.1536 56.64384 61.8368 104.25728 100.50816 151.27936 27.07712 32.92416 54.592 65.536 76.032 102.6944 17.06496 29.57568 30.71488 60.416 36.49408 94.25536 10.65856 62.4064-3.3728 119.11936-41.35808 169.50016-37.87136 50.22848-89.12384 79.04768-151.0592 86.68288-69.376 8.55424-130.6048-11.64928-182.97344-59.0336m234.77248-308.38784c-4.71168-6.65984-10.2016-12.57728-16.7936-17.41824-27.78368-20.40832-58.83648-24.52736-91.15392-15.51872-30.048 8.37376-52.27264 26.62144-60.46464 58.32832-3.8144 14.76096 11.6224 29.66528 26.5024 26.29632 10.26304-2.32448 15.936-9.09952 19.61472-18.3296 5.1968-13.0496 14.19776-22.25408 27.95136-25.984 7.39456-2.00576 14.9824-1.72672 22.71232-1.472 20.41088 0.672 41.17248 19.92576 34.42432 48.6016-2.8928 12.2944-11.34976 20.73344-19.96032 29.07392-9.1776 8.8896-19.29088 16.81408-27.35744 26.84928-10.16704 12.65024-16.73984 26.74816-16.91904 43.2064-0.1408 13.03552 7.54816 21.3248 20.28928 22.65344 12.3136 1.28256 20.4096-4.6528 22.51136-18.00192 2.26432-14.37952 9.792-25.08672 20.4608-34.2912 8.55168-7.37664 16.9856-14.91968 25.09824-22.77376 29.64992-28.70272 34.8224-67.61216 13.08416-101.21984M546.4448 689.152c3.58912-15.9744-8.8192-34.05568-25.41568-37.0368-18.91072-3.39584-37.376 9.43616-39.45856 27.424-1.87008 16.13824 10.0352 32.6208 25.66784 35.53536 17.69728 3.29984 34.2528-7.27168 39.2064-25.92256z\" fill=\"#d81e06\"><\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>V: Waar is opgeloste zuurstof het hoogst in een waterlichaam?<\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-b7d9c19b wp-block-group-is-layout-flex\" style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\"><div class=\"wp-block-safe-svg-svg-icon safe-svg-cover\" style=\"text-align: left;\">\n\t\t\t\t<div class=\"safe-svg-inside safe-svg-inline\" style=\"width: 32px; height: 32px; background-color: var(--wp--preset--color--); color: var(--wp--preset--color--); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0;\"><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewbox=\"0 0 1024 1024\" version=\"1.1\" width=\"32\" height=\"32\"><path d=\"M501.0496 225.9008c1.9776-4.30848 3.3792-8.41984 5.65248-11.9744 3.82464-5.98656 11.03232-5.89184 13.73056 0.51968 27.92704 66.35136 74.78016 119.73888 119.27424 174.7456 25.23776 31.20128 49.71008 62.8992 68.15104 98.80448 17.57952 34.2272 28.4416 70.3424 29.28128 108.89088 0.8832 40.52608-9.22368 78.46144-30.06976 113.39008-32.99328 55.27936-80.94464 90.8096-143.59424 104.55296-76.60288 16.80256-145.1776-1.41696-203.41376-54.08384-39.3472-35.584-62.4128-80.41984-68.70272-133.44512-6.31808-53.26336 6.912-102.2336 32.6464-148.46336 21.2736-38.2208 48.8768-71.87584 76.31104-105.62432 32.3008-39.73248 64.4672-79.53536 89.2032-124.6592 3.9936-7.28576 7.57376-14.79808 11.53024-22.65344m-36.41216 378.90304c-15.41376-15.35232-30.78784-30.7456-46.26176-46.03648-6.16832-6.09536-10.1184-6.1056-16.38016-0.01024a1031.35872 1031.35872 0 0 0-22.57792 22.6496c-6.88768 7.13344-6.80448 9.34144 0.13696 16.43136 16.2624 16.6144 32.58112 33.17248 48.8448 49.78432 13.8752 14.17216 27.62752 28.46336 41.58464 42.55104 6.6816 6.7456 11.33696 6.4768 17.856-0.44032 1.16992-1.2416 2.26432-2.55232 3.38816-3.83616 40.47488-46.19008 80.93952-92.3904 121.43104-138.5664 12.512-14.26944 25.09056-28.48 37.664-42.69568 3.30496-3.7376 5.07136-7.7952 1.09696-11.89504-8.45696-8.72704-17.0624-17.3184-25.85088-25.71008-3.54688-3.38688-7.74016-3.2768-11.52256 0.06784-2.0736 1.83296-4.1024 3.73504-5.9776 5.7664-16.48256 17.85728-32.98944 35.69536-49.36704 53.64864-23.70688 25.98528-47.32544 52.0512-70.9568 78.1056-13.6 14.99648-9.64224 12.96512-23.10784 0.1856z\" fill=\"#21a529\"><\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> Vlakbij het oppervlak, waar atmosferische beluchting en fotosynthese zuurstof toevoegen; DO neemt meestal af met diepte.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-b7d9c19b wp-block-group-is-layout-flex\" style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\"><div class=\"wp-block-safe-svg-svg-icon safe-svg-cover\" style=\"text-align: left;\">\n\t\t\t\t<div class=\"safe-svg-inside safe-svg-inline\" style=\"width: 32px; height: 32px; background-color: var(--wp--preset--color--); color: var(--wp--preset--color--); padding-top: ; padding-right: ; padding-bottom: ; padding-left: ; margin-top: ; margin-right: ; margin-bottom: ; margin-left: ;\"><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewbox=\"0 0 1024 1024\" version=\"1.1\" width=\"32\" height=\"32\"><path d=\"M358.70592 758.7456c-33.01888-30.9504-54.48448-68.19072-64.29056-111.7952-11.46752-50.99264-3.54176-99.89632 18.03264-146.9696 17.74592-38.71744 42.84416-72.6208 69.29024-105.6384 28.12416-35.1104 57.45792-69.28384 82.5088-106.77248 15.18592-22.7264 29.34016-46.01984 39.91552-71.3216 0.4928-1.1776 1.05856-2.33216 1.68064-3.44704 1.70624-3.05152 4.27008-4.57856 7.83872-4.57472 3.72224 0.00384 6.03648 1.98784 7.38048 5.14048 24.1536 56.64384 61.8368 104.25728 100.50816 151.27936 27.07712 32.92416 54.592 65.536 76.032 102.6944 17.06496 29.57568 30.71488 60.416 36.49408 94.25536 10.65856 62.4064-3.3728 119.11936-41.35808 169.50016-37.87136 50.22848-89.12384 79.04768-151.0592 86.68288-69.376 8.55424-130.6048-11.64928-182.97344-59.0336m234.77248-308.38784c-4.71168-6.65984-10.2016-12.57728-16.7936-17.41824-27.78368-20.40832-58.83648-24.52736-91.15392-15.51872-30.048 8.37376-52.27264 26.62144-60.46464 58.32832-3.8144 14.76096 11.6224 29.66528 26.5024 26.29632 10.26304-2.32448 15.936-9.09952 19.61472-18.3296 5.1968-13.0496 14.19776-22.25408 27.95136-25.984 7.39456-2.00576 14.9824-1.72672 22.71232-1.472 20.41088 0.672 41.17248 19.92576 34.42432 48.6016-2.8928 12.2944-11.34976 20.73344-19.96032 29.07392-9.1776 8.8896-19.29088 16.81408-27.35744 26.84928-10.16704 12.65024-16.73984 26.74816-16.91904 43.2064-0.1408 13.03552 7.54816 21.3248 20.28928 22.65344 12.3136 1.28256 20.4096-4.6528 22.51136-18.00192 2.26432-14.37952 9.792-25.08672 20.4608-34.2912 8.55168-7.37664 16.9856-14.91968 25.09824-22.77376 29.64992-28.70272 34.8224-67.61216 13.08416-101.21984M546.4448 689.152c3.58912-15.9744-8.8192-34.05568-25.41568-37.0368-18.91072-3.39584-37.376 9.43616-39.45856 27.424-1.87008 16.13824 10.0352 32.6208 25.66784 35.53536 17.69728 3.29984 34.2528-7.27168 39.2064-25.92256z\" fill=\"#d81e06\"><\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>V: Wat is oververzadigd opgeloste zuurstof?<\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-b7d9c19b wp-block-group-is-layout-flex\" style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\"><div class=\"wp-block-safe-svg-svg-icon safe-svg-cover\" style=\"text-align: left;\">\n\t\t\t\t<div class=\"safe-svg-inside safe-svg-inline\" style=\"width: 32px; height: 32px; background-color: var(--wp--preset--color--); color: var(--wp--preset--color--); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0;\"><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewbox=\"0 0 1024 1024\" version=\"1.1\" width=\"32\" height=\"32\"><path d=\"M501.0496 225.9008c1.9776-4.30848 3.3792-8.41984 5.65248-11.9744 3.82464-5.98656 11.03232-5.89184 13.73056 0.51968 27.92704 66.35136 74.78016 119.73888 119.27424 174.7456 25.23776 31.20128 49.71008 62.8992 68.15104 98.80448 17.57952 34.2272 28.4416 70.3424 29.28128 108.89088 0.8832 40.52608-9.22368 78.46144-30.06976 113.39008-32.99328 55.27936-80.94464 90.8096-143.59424 104.55296-76.60288 16.80256-145.1776-1.41696-203.41376-54.08384-39.3472-35.584-62.4128-80.41984-68.70272-133.44512-6.31808-53.26336 6.912-102.2336 32.6464-148.46336 21.2736-38.2208 48.8768-71.87584 76.31104-105.62432 32.3008-39.73248 64.4672-79.53536 89.2032-124.6592 3.9936-7.28576 7.57376-14.79808 11.53024-22.65344m-36.41216 378.90304c-15.41376-15.35232-30.78784-30.7456-46.26176-46.03648-6.16832-6.09536-10.1184-6.1056-16.38016-0.01024a1031.35872 1031.35872 0 0 0-22.57792 22.6496c-6.88768 7.13344-6.80448 9.34144 0.13696 16.43136 16.2624 16.6144 32.58112 33.17248 48.8448 49.78432 13.8752 14.17216 27.62752 28.46336 41.58464 42.55104 6.6816 6.7456 11.33696 6.4768 17.856-0.44032 1.16992-1.2416 2.26432-2.55232 3.38816-3.83616 40.47488-46.19008 80.93952-92.3904 121.43104-138.5664 12.512-14.26944 25.09056-28.48 37.664-42.69568 3.30496-3.7376 5.07136-7.7952 1.09696-11.89504-8.45696-8.72704-17.0624-17.3184-25.85088-25.71008-3.54688-3.38688-7.74016-3.2768-11.52256 0.06784-2.0736 1.83296-4.1024 3.73504-5.9776 5.7664-16.48256 17.85728-32.98944 35.69536-49.36704 53.64864-23.70688 25.98528-47.32544 52.0512-70.9568 78.1056-13.6 14.99648-9.64224 12.96512-23.10784 0.1856z\" fill=\"#21a529\"><\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> Supersaturatie treedt op wanneer DO meer dan 100% verzadiging (bijv. tijdens intense fotosynthese), soms veroorzaakt gasbelziekte bij vissen.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-b7d9c19b wp-block-group-is-layout-flex\" style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\"><div class=\"wp-block-safe-svg-svg-icon safe-svg-cover\" style=\"text-align: left;\">\n\t\t\t\t<div class=\"safe-svg-inside safe-svg-inline\" style=\"width: 32px; height: 32px; background-color: var(--wp--preset--color--); color: var(--wp--preset--color--); padding-top: ; padding-right: ; padding-bottom: ; padding-left: ; margin-top: ; margin-right: ; margin-bottom: ; margin-left: ;\"><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewbox=\"0 0 1024 1024\" version=\"1.1\" width=\"32\" height=\"32\"><path d=\"M358.70592 758.7456c-33.01888-30.9504-54.48448-68.19072-64.29056-111.7952-11.46752-50.99264-3.54176-99.89632 18.03264-146.9696 17.74592-38.71744 42.84416-72.6208 69.29024-105.6384 28.12416-35.1104 57.45792-69.28384 82.5088-106.77248 15.18592-22.7264 29.34016-46.01984 39.91552-71.3216 0.4928-1.1776 1.05856-2.33216 1.68064-3.44704 1.70624-3.05152 4.27008-4.57856 7.83872-4.57472 3.72224 0.00384 6.03648 1.98784 7.38048 5.14048 24.1536 56.64384 61.8368 104.25728 100.50816 151.27936 27.07712 32.92416 54.592 65.536 76.032 102.6944 17.06496 29.57568 30.71488 60.416 36.49408 94.25536 10.65856 62.4064-3.3728 119.11936-41.35808 169.50016-37.87136 50.22848-89.12384 79.04768-151.0592 86.68288-69.376 8.55424-130.6048-11.64928-182.97344-59.0336m234.77248-308.38784c-4.71168-6.65984-10.2016-12.57728-16.7936-17.41824-27.78368-20.40832-58.83648-24.52736-91.15392-15.51872-30.048 8.37376-52.27264 26.62144-60.46464 58.32832-3.8144 14.76096 11.6224 29.66528 26.5024 26.29632 10.26304-2.32448 15.936-9.09952 19.61472-18.3296 5.1968-13.0496 14.19776-22.25408 27.95136-25.984 7.39456-2.00576 14.9824-1.72672 22.71232-1.472 20.41088 0.672 41.17248 19.92576 34.42432 48.6016-2.8928 12.2944-11.34976 20.73344-19.96032 29.07392-9.1776 8.8896-19.29088 16.81408-27.35744 26.84928-10.16704 12.65024-16.73984 26.74816-16.91904 43.2064-0.1408 13.03552 7.54816 21.3248 20.28928 22.65344 12.3136 1.28256 20.4096-4.6528 22.51136-18.00192 2.26432-14.37952 9.792-25.08672 20.4608-34.2912 8.55168-7.37664 16.9856-14.91968 25.09824-22.77376 29.64992-28.70272 34.8224-67.61216 13.08416-101.21984M546.4448 689.152c3.58912-15.9744-8.8192-34.05568-25.41568-37.0368-18.91072-3.39584-37.376 9.43616-39.45856 27.424-1.87008 16.13824 10.0352 32.6208 25.66784 35.53536 17.69728 3.29984 34.2528-7.27168 39.2064-25.92256z\" fill=\"#d81e06\"><\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>V: Welk gehalte aan opgeloste zuurstof is gevaarlijk voor vissen?<\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-b7d9c19b wp-block-group-is-layout-flex\" style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\"><div class=\"wp-block-safe-svg-svg-icon safe-svg-cover\" style=\"text-align: left;\">\n\t\t\t\t<div class=\"safe-svg-inside safe-svg-inline\" style=\"width: 32px; height: 32px; background-color: var(--wp--preset--color--); color: var(--wp--preset--color--); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0;\"><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewbox=\"0 0 1024 1024\" version=\"1.1\" width=\"32\" height=\"32\"><path d=\"M501.0496 225.9008c1.9776-4.30848 3.3792-8.41984 5.65248-11.9744 3.82464-5.98656 11.03232-5.89184 13.73056 0.51968 27.92704 66.35136 74.78016 119.73888 119.27424 174.7456 25.23776 31.20128 49.71008 62.8992 68.15104 98.80448 17.57952 34.2272 28.4416 70.3424 29.28128 108.89088 0.8832 40.52608-9.22368 78.46144-30.06976 113.39008-32.99328 55.27936-80.94464 90.8096-143.59424 104.55296-76.60288 16.80256-145.1776-1.41696-203.41376-54.08384-39.3472-35.584-62.4128-80.41984-68.70272-133.44512-6.31808-53.26336 6.912-102.2336 32.6464-148.46336 21.2736-38.2208 48.8768-71.87584 76.31104-105.62432 32.3008-39.73248 64.4672-79.53536 89.2032-124.6592 3.9936-7.28576 7.57376-14.79808 11.53024-22.65344m-36.41216 378.90304c-15.41376-15.35232-30.78784-30.7456-46.26176-46.03648-6.16832-6.09536-10.1184-6.1056-16.38016-0.01024a1031.35872 1031.35872 0 0 0-22.57792 22.6496c-6.88768 7.13344-6.80448 9.34144 0.13696 16.43136 16.2624 16.6144 32.58112 33.17248 48.8448 49.78432 13.8752 14.17216 27.62752 28.46336 41.58464 42.55104 6.6816 6.7456 11.33696 6.4768 17.856-0.44032 1.16992-1.2416 2.26432-2.55232 3.38816-3.83616 40.47488-46.19008 80.93952-92.3904 121.43104-138.5664 12.512-14.26944 25.09056-28.48 37.664-42.69568 3.30496-3.7376 5.07136-7.7952 1.09696-11.89504-8.45696-8.72704-17.0624-17.3184-25.85088-25.71008-3.54688-3.38688-7.74016-3.2768-11.52256 0.06784-2.0736 1.83296-4.1024 3.73504-5.9776 5.7664-16.48256 17.85728-32.98944 35.69536-49.36704 53.64864-23.70688 25.98528-47.32544 52.0512-70.9568 78.1056-13.6 14.99648-9.64224 12.96512-23.10784 0.1856z\" fill=\"#21a529\"><\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> De meeste gekweekte vissen hebben DO nodig boven ruwweg 4 mg\/l; 2<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-b7d9c19b wp-block-group-is-layout-flex\" style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\"><div class=\"wp-block-safe-svg-svg-icon safe-svg-cover\" style=\"text-align: left;\">\n\t\t\t\t<div class=\"safe-svg-inside safe-svg-inline\" style=\"width: 32px; height: 32px; background-color: var(--wp--preset--color--); color: var(--wp--preset--color--); padding-top: ; padding-right: ; padding-bottom: ; padding-left: ; margin-top: ; margin-right: ; margin-bottom: ; margin-left: ;\"><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewbox=\"0 0 1024 1024\" version=\"1.1\" width=\"32\" height=\"32\"><path d=\"M358.70592 758.7456c-33.01888-30.9504-54.48448-68.19072-64.29056-111.7952-11.46752-50.99264-3.54176-99.89632 18.03264-146.9696 17.74592-38.71744 42.84416-72.6208 69.29024-105.6384 28.12416-35.1104 57.45792-69.28384 82.5088-106.77248 15.18592-22.7264 29.34016-46.01984 39.91552-71.3216 0.4928-1.1776 1.05856-2.33216 1.68064-3.44704 1.70624-3.05152 4.27008-4.57856 7.83872-4.57472 3.72224 0.00384 6.03648 1.98784 7.38048 5.14048 24.1536 56.64384 61.8368 104.25728 100.50816 151.27936 27.07712 32.92416 54.592 65.536 76.032 102.6944 17.06496 29.57568 30.71488 60.416 36.49408 94.25536 10.65856 62.4064-3.3728 119.11936-41.35808 169.50016-37.87136 50.22848-89.12384 79.04768-151.0592 86.68288-69.376 8.55424-130.6048-11.64928-182.97344-59.0336m234.77248-308.38784c-4.71168-6.65984-10.2016-12.57728-16.7936-17.41824-27.78368-20.40832-58.83648-24.52736-91.15392-15.51872-30.048 8.37376-52.27264 26.62144-60.46464 58.32832-3.8144 14.76096 11.6224 29.66528 26.5024 26.29632 10.26304-2.32448 15.936-9.09952 19.61472-18.3296 5.1968-13.0496 14.19776-22.25408 27.95136-25.984 7.39456-2.00576 14.9824-1.72672 22.71232-1.472 20.41088 0.672 41.17248 19.92576 34.42432 48.6016-2.8928 12.2944-11.34976 20.73344-19.96032 29.07392-9.1776 8.8896-19.29088 16.81408-27.35744 26.84928-10.16704 12.65024-16.73984 26.74816-16.91904 43.2064-0.1408 13.03552 7.54816 21.3248 20.28928 22.65344 12.3136 1.28256 20.4096-4.6528 22.51136-18.00192 2.26432-14.37952 9.792-25.08672 20.4608-34.2912 8.55168-7.37664 16.9856-14.91968 25.09824-22.77376 29.64992-28.70272 34.8224-67.61216 13.08416-101.21984M546.4448 689.152c3.58912-15.9744-8.8192-34.05568-25.41568-37.0368-18.91072-3.39584-37.376 9.43616-39.45856 27.424-1.87008 16.13824 10.0352 32.6208 25.66784 35.53536 17.69728 3.29984 34.2528-7.27168 39.2064-25.92256z\" fill=\"#d81e06\"><\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>V: Wanneer moeten vijver beluchters worden uitgevoerd?<\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-b7d9c19b wp-block-group-is-layout-flex\" style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\"><div class=\"wp-block-safe-svg-svg-icon safe-svg-cover\" style=\"text-align: left;\">\n\t\t\t\t<div class=\"safe-svg-inside safe-svg-inline\" style=\"width: 32px; height: 32px; background-color: var(--wp--preset--color--); color: var(--wp--preset--color--); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0;\"><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewbox=\"0 0 1024 1024\" version=\"1.1\" width=\"32\" height=\"32\"><path d=\"M501.0496 225.9008c1.9776-4.30848 3.3792-8.41984 5.65248-11.9744 3.82464-5.98656 11.03232-5.89184 13.73056 0.51968 27.92704 66.35136 74.78016 119.73888 119.27424 174.7456 25.23776 31.20128 49.71008 62.8992 68.15104 98.80448 17.57952 34.2272 28.4416 70.3424 29.28128 108.89088 0.8832 40.52608-9.22368 78.46144-30.06976 113.39008-32.99328 55.27936-80.94464 90.8096-143.59424 104.55296-76.60288 16.80256-145.1776-1.41696-203.41376-54.08384-39.3472-35.584-62.4128-80.41984-68.70272-133.44512-6.31808-53.26336 6.912-102.2336 32.6464-148.46336 21.2736-38.2208 48.8768-71.87584 76.31104-105.62432 32.3008-39.73248 64.4672-79.53536 89.2032-124.6592 3.9936-7.28576 7.57376-14.79808 11.53024-22.65344m-36.41216 378.90304c-15.41376-15.35232-30.78784-30.7456-46.26176-46.03648-6.16832-6.09536-10.1184-6.1056-16.38016-0.01024a1031.35872 1031.35872 0 0 0-22.57792 22.6496c-6.88768 7.13344-6.80448 9.34144 0.13696 16.43136 16.2624 16.6144 32.58112 33.17248 48.8448 49.78432 13.8752 14.17216 27.62752 28.46336 41.58464 42.55104 6.6816 6.7456 11.33696 6.4768 17.856-0.44032 1.16992-1.2416 2.26432-2.55232 3.38816-3.83616 40.47488-46.19008 80.93952-92.3904 121.43104-138.5664 12.512-14.26944 25.09056-28.48 37.664-42.69568 3.30496-3.7376 5.07136-7.7952 1.09696-11.89504-8.45696-8.72704-17.0624-17.3184-25.85088-25.71008-3.54688-3.38688-7.74016-3.2768-11.52256 0.06784-2.0736 1.83296-4.1024 3.73504-5.9776 5.7664-16.48256 17.85728-32.98944 35.69536-49.36704 53.64864-23.70688 25.98528-47.32544 52.0512-70.9568 78.1056-13.6 14.99648-9.64224 12.96512-23.10784 0.1856z\" fill=\"#21a529\"><\/path><\/svg> <\/div>\n\t\t\t<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> Beluchters zijn het meest waardevol op hete, nog steeds dagen om stratificatie op te breken voordat het verdiept en opnieuw in de vroege ochtenduren voor zonsopgang, om de dagelijkse DO laag punt te dekken.<\/p>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Bronvermeldingen<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Texas A&amp;M AgriLife Extension \/ Southern Regional Aquaculture Center, <em><a href=\"https:\/\/fisheries.tamu.edu\/aquaculture\/aeration\" target=\"_blank\" rel=\"noreferrer noopener\">Vijverbeluchting<\/a><\/em>.<\/li>\n\n\n\n<li>U.S. Geologische enqu\u00eate, <em><a href=\"https:\/\/www.usgs.gov\/special-topics\/water-science-school\/science\/dissolved-oxygen-and-water\" target=\"_blank\" rel=\"noreferrer noopener\">Opgelost zuurstof en water<\/a><\/em>, USGS Water Science School.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Dissolved oxygen (DO) is rarely uniform across a pond. It changes with depth, with location relative to wind direction, and dramatically over the course of a single day. Understanding these patterns \u2014 covered in Part 1 alongside where oxygen comes from and where it goes \u2014 is what lets operators anticipate a hypoxia event instead [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":24929,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[113,209,277],"tags":[],"class_list":["post-13146","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dissolved-oxygen-sensor","category-dissolved-oxygen-probe","category-do-sensor"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.kcsensor.com\/nl\/wp-json\/wp\/v2\/posts\/13146","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kcsensor.com\/nl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kcsensor.com\/nl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kcsensor.com\/nl\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kcsensor.com\/nl\/wp-json\/wp\/v2\/comments?post=13146"}],"version-history":[{"count":0,"href":"https:\/\/www.kcsensor.com\/nl\/wp-json\/wp\/v2\/posts\/13146\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kcsensor.com\/nl\/wp-json\/wp\/v2\/media\/24929"}],"wp:attachment":[{"href":"https:\/\/www.kcsensor.com\/nl\/wp-json\/wp\/v2\/media?parent=13146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kcsensor.com\/nl\/wp-json\/wp\/v2\/categories?post=13146"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kcsensor.com\/nl\/wp-json\/wp\/v2\/tags?post=13146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}