Verberk, W.C.E.P. (Wilco)NL Solving the Equations of Life | Hoe het Leven werkt
PeerTube
GES4SEAS MOOCsWhere as Exogenic (external) pressures: We cannot manage these at a regional level. For example, the large-scale impacts of global climate change, such as #oceanwarming, #acidification, and #deoxygenation in the wider North Atlantic.
Tino EberlDer #Sauerstoffgehalt in Seen weltweit sinkt dramatisch. Laut einer Studie in Science Advances um bis zu 18,6 % in tieferen #Wasserschichten seit 1980.
Hauptursachen sind steigende #Temperaturen, zunehmende #Hitzewellen und #Algenblüten durch #Düngemittel-Einträge.
Über 80 % der untersuchten 15.000 Seen zeigen bereits #Sauerstoffmangel. Die Folge sind zunehmendes #Tiersterben und instabile #Ökosysteme.
Broken Feather
Dr. Or M. BialikUnder anthropogenic stress, we talk a lot about #ocean #warming and ocean #acidification... but we should also be talking more about ocean #deoxygenation, as it is an ongoing problem. To understand just how bad it can get ( #extinction event bad ), we must turn, as usual, to the geological record.
https://doi.org/10.1016/j.earscirev.2023.104664
https://doi.org/10.1016/j.earscirev.2023.104664
#WeekendReading: Behrooz et al. on water column #deoxygenation and #euxinia (inc. surface waters) at the Paleocene #Eocene Thermal Maximum.
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023PA004828
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023PA004828
earthling
Map shows coastal sites where anthropogenic nutrients have exacerbated or caused oxygen declines to <2 mg/L (red dots), as well as ocean oxygen-minimum zones at 300 meters of depth (blue shaded regions). Image by Breitburg et al, 2018.
#Hypoxic areas
#oceans
#deoxygenation
#Oxygen is a fundamental requirement of life on planet Earth. The loss of oxygen in water, also referred to as #aquatic #deoxygenation, is a threat to life at all levels. The international team of researchers describes how ongoing deoxygenation presents a major threat to the livelihoods of large parts of society and for the stability of life on our planet.
Loss of oxygen in bodies of water identified as new tipping point
Oxygen concentrations in our planet's waters are decreasing rapidly and dramatically—from ponds to the ocean. The progressive loss of oxygen threatens not only ecosystems, but also the livelihoods of large sectors of society and the entire planet, according to the authors of an international study involving GEOMAR published today in Nature Ecology & Evolution.
indianflash"There is an urgent need for global monitoring and research to understand the extent and impacts of #deoxygenation"
https://indianf.com/dissolved-oxygen-urgent-need-address-aquatic-deoxygenation/#:~:text=There%20is%20an%20urgent%20need%20for%20global%20monitoring%20and%20research%20to%20understand%20the%20extent%20and%20impacts%20of%20deoxygenation
https://indianf.com/dissolved-oxygen-urgent-need-address-aquatic-deoxygenation/#:~:text=There%20is%20an%20urgent%20need%20for%20global%20monitoring%20and%20research%20to%20understand%20the%20extent%20and%20impacts%20of%20deoxygenation
