Sentences with phrase «primary ocean productivity»

It is based on the concept that iron is a critical nutrient for primary ocean productivity, and oceanic iron deposition has been in decline for decades.

Not exact matches

Recent research reveals that there has been a 9 percent decline in primary productivity in the North Pacific Ocean, 7 percent in the North Atlantic, and about 6 percent diminishment worldwide.

While the addition of iron to forest - size patches of ocean might help mitigate global warming, it is even more important that we use it to mitigate the decline in the ocean's primary productivity.

It's the primary cause of the collapse of primary productivity in the oceans.

«NASA has access to large - scale oceanographic data sets ranging from primary productivity to ocean temperature, currents and wind,» Moore said.

Environmental regulation of primary productivity in aquatic ecosystems, physiological ecology of phytoplankton, hydrological optics, integrated ocean observatories.

These processes included dust deposition, and ocean acidification and warming, which were shown to have a significant impact on oceanic phytoplankton growth, cell size and primary productivity, biological N2 fixation, phytoplankton distribution and community composition.

The shift from a multiyear to seasonal ice cover has significant implications for the heat and mass budget of the ice and for primary productivity in the upper ocean.

Ocean acidification and rising temperatures may increase biofilm primary productivity but decrease grazer consumption

We don't have good information on the base of the food chain for most of the past — that's just «noise» but now that we start having ways to track trends in primary productivity — what's being made out of sunlight, water and CO2, by which organisms, and how fast do their populations change (remembering that some plankton populations turn over a new generation in a couple of weeks so relative numbers of different species can change that fast across the oceans).

The 10 Earth System Models used here project similar trends in ocean warming, acidification, deoxygenation and reduced primary productivity for each of the IPCC's representative concentration parthways (RCP) over the 21st century.

But one thing that gets overlooked (in my opinion) is that primary and secondary productivities are not the only values in the ocean or any other ecosystem.

Obviously, the most important affects of ocean acidification would be on living organisms in the ocean thereby affecting primary productivity.

Physical properties of the water and satellite estimates of primary productivity were used separately to describe 25 different water masses in Australia's oceans, identified by different circulation regimes and oceanographic features.

Sorry to nitpick, but I'm curious to know where you got that figure of 60 % — the most reliable numbers I have seen (admittedly, now nearly a decade old) for ocean phytoplankton are 45 % of world net primary productivity (NPP):

However, more recent research modelling the impacts of using microbubbles to address global warming found that the technique would not affect ocean primary productivity, a measure of the activity of primary producers.

· Changes in circulation and vertical mixing will influence nutrient availability and primary productivity, affecting the efficiency of carbon dioxide uptake by the oceans.

Ocean - color - sensing satellites measuring productivity are the primary source of phytoplankton information.

Current collaborative research projects include modeling the effects of vertical mixing and ultraviolet radiation on primary productivity in the Southern Ocean and understanding the role of climate forcing and hydrodynamics on harmful algal blooms and outbreaks of disease in aquatic organisms in lakes.

Marine microorganisms that drive many global ocean processes (e.g. oxygen production, primary productivity and biogeochemical cycling) are able to adapt to ocean acidification [49].

Ocean primary productivity depends on sunlight and nutrients supplied from deep waters (Sarmiento et al., 2004a).

The result was about double that of net productivity, which balances photosynthetic carbon uptake in oceans with carbon released by the respiration of primary producers in the ocean.