Sentences with phrase «plankton populations»
The phrase "plankton populations" refers to a group of very small organisms that drift in bodies of water, such as oceans or lakes. These organisms are unable to swim against the current and include both plants (phytoplankton) and animals (zooplankton). They serve as an important food source for many larger marine creatures. Full definition
A wide range of smartphone apps could allow citizens to do everything from monitoring air and water quality to tracking ocean plankton populations from space.
scientificamerican.com
So ammonites might well have starved to death when plankton populations crashed 65 million years ago.
The team found levels of both TiO2 and H2O2 to be high enough in the waterways tested to pose a threat to bacterial and base - level plankton populations.
Moore and his fellow researchers used an empirical model linking plankton growth to present - day fish catches and then factored in dwindling nutrients and plankton populations due to climate warming in the coming centuries.
«Seasonal winds can cause the upwelling of nutrients which in turn can cause plankton populations to bloom as «red tides.»
The biggest problem with Racing Extinction is that it tries to cover too much ground, casting a wide net around a range of topics such as our reliance on meat, shark fin soup popularity, emissions of carbon dioxide, underground methane gas, manta ray and whale hunting, and the decreasing plankton population.
Different plankton populations living at different places in the ocean.
Regarding the second scale limit issue, we actually do not believe there would be significant side effects from pushing plankton populations a few percent above their normal 1980s» levels.
Returning plankton populations to 1980 levels would neutralize about 50 % of industrial society's greenhouse gas emissions, and we feel that is about all you can or should ask a single ecosystem to contribute to our self - inflicted climate wars.
Their studies show a 25 % decline in Pacific plankton populations in the last 25 years and a 6 ~ 9 % die off globally.
The seismic airguns used to look for undersea oil don't just disrupt marine mammals, their shock waves also kill and disperse the plankton population
In August 2008, scientists in the northeastern Pacific Ocean were shocked to witness a sudden, huge spike in the area's plankton population.
When areas of the ocean are low in iron, the plankton population usually remains sparse.
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).
Their goal, in the face of steep declines in Pacific salmon catches, was to trigger a plankton population explosion with the infusion of iron, a vital nutrient that's lacking in those waters.