Sauerstoff-Minimum-Zone – Wikipedia

Dead zone (ecology) - Wikipedia

Sufficient oxygen for animal respiration 1,400 million years ago

Variations of Stable Isotope Ratios in Nature

Trade Winds ventilate the Tropical Oceans - GEOMAR - Helmholtz-Zentrum für Ozeanforschung Kiel

Sauerstoffminimumzone - Lexikon der Geowissenschaften

Globale Allmende - Sauerstoffmangel

Grundlagen der Metallkunde – Arnold Horsch e.K Wissensdatenbank

Versauerung der Meere – Wikipedia

Klimawandel - Wikiwand

Hypoxie (Ökologie) – Wikipedia

Microbiology of oxygen minimum zones - Wikipedia

Variations of Stable Isotope Ratios in Nature

Ocean - Simple English Wikipedia, the free encyclopedia

Oxygen and nitrogen production by an ammonia-oxidizing archaeon