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Science Keywords > EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > HYPOXIA

TERME PRÉFÉRENTIEL

HYPOXIA  

DÉFINITION

  • Hypoxia in aquatic systems refers to waters where the dissolved oxygen concentration is below 2 mg/L. Most organisms avoid, or become physiologically stressed, in waters with oxygen below this concentration. Also known as a dead zone, hypoxia can also kill marine organisms which cannot escape the low-oxygen water, affecting commercial harvests and the health of impacted ecosystems. 3. Rationale: Numerous researchers are studying hypoxia, the hypoxic zone, and its effect on fisheries. It is becoming a highly visible hot topic in the Gulf of Mexico and other regions as the onset of hypoxia is largely due to increased nutrient run off from agriculture practices in the Mississippi River watershed. I think there needs to be a unifying keyword to link these datasets together for users to discover hypoxia related data across multiple organizations and programs.

CONCEPT GÉNÉRIQUE

NOTE DE CHANGEMENT

  • 2019-08-14 13:21:12.0 [sritz] Insert Concept add broader relation (HYPOXIA [b846063c-e218-4fc6-9866-0cdca24e9023,369037] - OCEAN CHEMISTRY [6eb3919b-85ce-4988-8b78-9d0018fd8089,361241]);
  • 2019-08-14 13:22:41.0 [sritz] insert Definition (id: null text: Hypoxia in aquatic systems refers to waters where the dissolved oxygen concentration is below 2 mg/L. Most organisms avoid, or become physiologically stressed, in waters with oxygen below this concentration. Also known as a dead zone, hypoxia can also kill marine organisms which cannot escape the low-oxygen water, affecting commercial harvests and the health of impacted ecosystems. 3. Rationale: Numerous researchers are studying hypoxia, the hypoxic zone, and its effect on fisheries. It is becoming a highly visible hot topic in the Gulf of Mexico and other regions as the onset of hypoxia is largely due to increased nutrient run off from agriculture practices in the Mississippi River watershed. I think there needs to be a unifying keyword to link these datasets together for users to discover hypoxia related data across multiple organizations and programs. language code: en);
  • 2019-08-21 10:06:51.0 [sritz] update Definition (Lauren Jackson, Mississippi State University, Northern Gulf Institute, https://www.northerngulfinstitute.org/);

URI

https://gcmd.earthdata.nasa.gov/kms/concept/b846063c-e218-4fc6-9866-0cdca24e9023

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