hypoxia

1. IntroductionHypoxia is a condition characterized by insufficient O2 at different levels, resulting in several physiological manifestations. Different hypoxic types have been described, including hypobaric-hypoxia (HH) (high…

1. IntroductionWhile the World Health Organization (WHO) chief declared the end of the global health emergency for COVID-19 in 2023 (https://www.who.int/, accessed on 15 May 2023), numerous questions about this pandemic disease persist.…

Figure 1. Flow chart of this study. Normal and tumor data of GBM patients in the TCGA and GTEx databases were used for WGCNA and differential analysis. The 59 genes obtained were further analyzed by Cox and LASSO regression analyses…

Deployment of the sediment trap on board the research vessel METEOR. Credit: Jon Roa, GEOMAR Marine organisms play a crucial role in the…

Today, NOAA announced $20.1 million in funding for harmful algal bloom (HAB) and hypoxia research projects and monitoring activities throughout U.S. coastal and Great Lakes waters.  Marine and fresh waters across the country…

NOAA is forecasting a summer “dead zone” in the Gulf of Mexico that will be approximately 5,364 square miles, making it about average for the 35-year history of the summertime dead zone measurements in the region. The forecast is lower…

The dead zone in the Gulf of Mexico offsite link affects nationally important commercial and recreational fisheries. Hypoxic zones or “dead zones” are caused by high levels of nutrients, primarily from activities such as industrialized…

The anoxic portion of the zone, which contains no oxygen at all, is predicted to be 0.28 cubic miles in early summer, growing to 0.31 cubic miles by late summer – both of which are smaller than average. Low river flow and low nutrient…

The annual cruise, which has been directed by Louisiana Universities Marine Consortium senior scientist Nancy Rabalais, Ph.D., has been conducted each summer for 30 consecutive years since 1985. The 2016 survey was slated to…

By Elizabeth Weinberg August 2017 Suck all the oxygen out of a room and it's impossible to breathe. In the ocean, reduction of oxygen can also be a major problem -- so…

Measurements for the Bay’s dead zone go back to 1950, and the 30-year mean maximum dead zone volume is 1.74 cubic miles. “Despite this year’s forecast, we’ve made great strides in reducing nutrient pollution from various sources…

Federal scientists forecast that this summer’s Gulf of Mexico dead zone – an area of low to no oxygen that can kill fish and other marine life – will be approximately 8,185 square miles, or about the size of New Jersey. This would be…

Scientists have determined this year’s Gulf of Mexico “dead zone,” an area of low oxygen that can kill fish and marine life, is 8,776 square miles, an area about the size of New Jersey. It is the largest measured since dead zone mapping…

The 2018 forecast is similar to the 33-year average Gulf dead zone of 5,460 square miles and is smaller than the 8,776 square mile 2017 Gulf dead zone, which was the largest dead zone measured since mapping began in 1985. Even though…

NOAA-supported scientists have determined that this year’s Gulf of Mexico “dead zone”— an area of low oxygen that can kill fish and marine life — is approximately 2,720 square miles (7,040 square kilometers), an area about the size of…

The 2019 forecast is close to the record size of 8,776 square miles set in 2017 and larger than the 5-year average measured size of 5,770 square miles. The annually recurring Gulf of Mexico hypoxic zone is primarily caused by excess…

This year’s Gulf of Mexico “dead zone”— an area of low oxygen that can kill fish and marine life — is approximately 6,952 square miles, according to NOAA-supported scientists. The measured size of the dead zone, also called the hypoxic…

The annual Gulf of Mexico dead zone is primarily caused by excess nutrient pollution from human activities in urban and agricultural areas throughout the Mississippi River watershed. When the excess nutrients reach the Gulf, they…

NOAA-supported scientists have determined this year’s Gulf of Mexico “dead zone”— an area of low to no oxygen that can kill fish and marine life — is approximately 2,116 square miles, or equivalent to 1.4 million acres of habitat…

By Yaamini Venkataraman November 2018 Not every marine scientist has the same origin story. Some are instantly enthralled by the ocean and its many inhabitants at a ripe young…

When water runs off of farmland and urban centers and flows into our streams and rivers, it is often chock-full of fertilizers and other nutrients. These massive loads of nutrients eventually end up in our coastal ocean, fueling a…

In this episode, hear about a condition known as hypoxia -- where oxygen levels drop so low that creatures in the water are stressed or killed. Episode permanent link and show notes

Less oxygen dissolved in the water is often referred to as a “dead zone” because most marine life either dies, or, if they are mobile such as fish, leave the area. Habitats that would normally be teeming with life become,…

Nutrients can run off of land in urban areas where lawn and garden fertilizers are used. Pet and wildlife wastes are also sources of nutrients. To see how this happens, consider this…

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Ecoforecasts detail how interactions between organisms and their environment may affect ecological phenomena such as animal extinction, the spread of invasive plants and disease, and the health of waterbodies.…