Sentences with phrase «growth of phytoplankton»

The iron caused rapid growth of a phytoplankton variety that secretes a potent neurotoxin, domoic acid, which could work its way up the food chain to sicken or kill fish, birds, and people.

Dust from the many continents ferries iron and phosphorus to the ocean surface, promoting the growth of phytoplankton and other marine plants that feed sea organisms and draw carbon dioxide out of the atmosphere.

Since the growth of phytoplankton is limited by available nitrogen, and carbon dioxide is central to the growth process, Jones believes that supplying extra nitrogen to phytoplankton would increase the uptake of carbon.

Though familiar to humans as an antiseptic, high levels of H2O2 can inhibit the growth of phytoplankton, tiny plants that are the base of many ocean food chains.

In the model, the severity of hypoxia is driven by a combination of physical factors such as the thickness of the dense, bottom layer of water during stratification, the degree of wind - driven vertical mixing, and the growth of phytoplankton induced by phosphorus loading.

Satellite images showed that this expanded pool of cold water likely encouraged the growth of phytoplankton, according to the new study.

And it increases the amount of light reaching Arctic surface waters, spurring the growth of phytoplankton, tiny organisms that form the base of the Arctic ocean food chain.

Marine scientists are raising the alarm about a proposal to drop tonnes of iron into the Pacific Ocean to stimulate the growth of phytoplankton, the base of the food web.

Experiments to date have suggested that the growth of phytoplankton across much of the ocean is limited by either nitrogen or iron.

Smetacek's team hoped that adding extra iron would boost the growth of phytoplankton colonies.

Ocean acidification can mitigate some reactions — for example, because the additional carbon dioxide that is dissolved in the seawater supports the growth of phytoplankton as food for the copepods.

Scientists previously believed that temperature and sunlight drive the growth of phytoplankton but using satellite data, the researchers of the study showed that the amount of water that leaves the melting glaciers in the Antarctic is the biggest contributor to the abundance of phytoplankton in the coastal polynyas.

The newly revealed information about the growth of phytoplankton in polynyas could provide scientists with improved insights into how the marine food web in the Antarctic works and how this could be impacted by climate change.

This species tends to prosper after a flood when the nutrient rich waters aid the growth of phytoplankton.

With less sea ice many marine ecosystems will experience more light, which can accelerate the growth of phytoplankton, and shift the balance between the primary production by ice algae and water - borne phytoplankton, with implications for Arctic food webs.

The key reason that everybody cares about iron is because it limits the growth of phytoplankton such as algae in maybe a fifth of the ocean.

These nutrients fuel the growth of phytoplankton, tiny, plant - like organisms that grow in the ocean surface waters.

According to a new study, the growth of phytoplankton has expanded from 3 to 30 percent in 20 years abetted by global warming.

The experiment, under way to the northeast of the South Georgia Islands in the southern Atlantic, is intended to promote a temporary spike in the growth of phytoplankton and the consequent absorption of carbon dioxide.

b) What effect does temperature have on the growth of phytoplankton under controlled conditions?