Sentences with phrase «layers of the algae»

The carbon in layers of algae from the bottom of a Japanese lake will help reveal the precise dates of historical climate change and human migrations

But Park and his co-authors point out that thicker layers of algae on the sea surface would prevent sunlight from penetrating deeper into the water.

Not exact matches

The remains of fish, algae, molluscs and small arthropods are preserved in the annual layers of sediment deposited in the bottom of Lake Tanganyika.

The elevated algae levels were caused by the higher phosphate phosphorus content of the surface layer before the growth season compared to last year.

In warm summers, relatively more sediment is deposited thanks to more meltwater from the glaciers that create these lakes, and the abundance of algae in the sediment layers reveals the length of growing seasons.

«What we show is that the Dark Zone is covered in a finely distributed layer of dust, and black carbon, which provide nutrition for dark coloured algae.

Ghostly white skeletons covered in a growing layer of green - brown algae created a desolate underwater landscape.

The team then used standard methods to date the layers and identify the species of algae and invertebrates, such as water fleas and midges, that inhabited the cold Arctic lakes.

More fresh water in the surface water layers makes it harder for the nutrient - rich bottom water to rise to the upper layers where the sunlight ensures the production of plankton algae in summer.

Student inventor Rodrigo García González — who is studying at Imperial College London and the Royal College of Arts in London — came up with the idea of packaging water in a membrane layer made from algae and calcium chloride, both of which are edible.

Upon mixing with the surface layer, the water will cause an increase in the growth of filamentous algae and elevate the risk of blue - green algal blooms.

The researchers found bits of pollen, algae, insects, sand and minerals in the samples from Lake Yoa in northern Chad, which they determined had accumulated into thin layers over the past 6,000 years.

Another characteristic is the presence of a waxy layer from which the fruitbodies emerge, which is usually colored in green due to the algae commonly living in the substance.

By the end of the test, snow that got extra algae was three times as likely to have melted to slush or down to a layer of ice beneath it.

One, which the authors themselves note, is that the warming of the Arctic Ocean that is already happening could trap nutrients in deeper, cooler layers that would make them less available to feed algae blooms.

One layer shows signs of algae.

In an algae - eat - algae world, it's the single - celled photosynthetic organisms at the top (layer of the ocean) that absorb the most sunlight.

To construct a long - term temperature record for the Horn of Africa, the researchers analyzed the sediment layers for chemicals called alkenones made by a particular kind of marine algae.

The roller delivers a layer of a light, incredibly nutrient - dense serum formulated with ingredients like antioxidant - rich astaxanthin, wakame brown algae (famously used by La Mer), raspberry seed oil, and Maya Chia's patented supercritical chia seed oil.

It's made from a skirt of horse hair, so it really highlights the interesting materials McQueen used in his designs, and it has a bodice of very fine glass beads that have been built up into layers, so it has this mossy and algae - like quality, and it looks as though it's alive and growing.

From this point, even a gentle breeze will serve to push the algae into a concentrated layer of scum, often near the water's edge where dogs and other animals are likely to ingest it while drinking.

SC: In essence, the passage of time is visually presented within your paintings through the irregular growth of the algae, which appears gradually by the intermittent layering of oil paint.

Sea ice is critical for polar marine ecosystems in at least two important ways: (1) it provides a habitat for photosynthetic algae and nursery ground for invertebrates and fish during times when the water column does not support phytoplankton growth; and (2) as the ice melts, releasing organisms into the surface water [3], a shallow mixed layer forms which fosters large ice - edge blooms important to the overall productivity of polar seas.

One problem has been «layering» or the tendency of algae to slow down their process of making lipids once they multiply quickly in a pond, or in specially - made containers.

Construction will inevitably disturb the top layer of soil, called a cryptobiotic crust, which contains dozens of species of moss, lichen, algae and fungi in each square centimeter and is critical to the desert's health, André says.