The biggest clues came as corpses: particularly, the remains
of microscopic algae known as diatoms and chrysophytes, whose glassy scales preserve extremely well in lake sediment.
Every spring, the Mississippi River funnels a rush of nutrients into the gulf that fuels an explosion of growth
of microscopic algae called phytoplankton.
As the LRAUVs move through the ocean, they collect information about water temperature, chemistry, and chlorophyll (an indicator
of microscopic algae) and send this data to scientists on shore or on a nearby ship.
One beneficiary of this young researcher exchange program was Matthew Julius, who studies the evolution of diatoms, a group
of microscopic algae, now at St. Cloud State University in Minnesota.
Over the oceans, some contain organic or biological ingredients (bacteria, degradation products
of microscopic algae) which come from sea spray, others are transported in the air (mineral dust, smoke).
Sandia National Laboratories biochemist Carolyn Fisher examines a beaker full
of microscopic algae eaters called rotifers being grown for the DISCOVR project.
The first took place from June to August 2011, when large numbers of diatoms (a type
of microscopic alga) bloomed near the surface, then sank rapidly to the seafloor.
Not exact matches
He studied remains
of two organisms — a
microscopic algae and the waxy coating
of mangrove leaves — for clues to the amount
of past rainfall.
Corals, the animals that famously build reefs, get most
of their energy and color from
microscopic algae that live inside their tissue.
To find out what eats what in this ecosystem, fisheries ecologists Jason Turner and Jay Rooker
of Texas A&M University in Galveston first analyzed the composition
of fatty acids in Sargassum, a green
algae that grows on seaweed fronds, and phytoplankton —
microscopic organisms that photosynthesize like plants.
SeaWiFS, on board the OrbView 2 (aka SeaStar) satellite measures the wavelengths
of light reflected by phytoplankton (
microscopic marine plants) and
algae that use chlorophyll for photosynthesis.
The study focused on three
of the most common
microscopic algae in the Chesapeake Bay that can produce toxic or nuisance conditions when they become very abundant.
Pseudo-nitzschia is a
microscopic algae that occurs naturally in coastal waters, and is
of particular concern due to its production
of the neurotoxin domoic acid.
Instead, the experiment yielded bloom
of algae, which was readily and rapidly eaten by
microscopic grazers.
While
algae and other
microscopic plants, which form the base
of the marine food chain, are vital to a healthy ecosystem, too much can cause murky water, reduce sunlight and oxygen levels, and ultimately cause harm to marine life.
Over five days, the team systematically altered biological communities within the flume by adding various combinations
of cultures
of marine bacteria and
microscopic marine
algae, or phytoplankton.
«Ancient marine
algae provides clues
of climate change impact on today's
microscopic ocean organisms.»
Phycologists consider seaweed to refer any
of a large number
of marine benthic
algae that are multicellular, macrothallic (large - bodied), and thus differentiated from most
algae that tend to be
microscopic in size.
How do certain
microscopic algae — that is, types
of phytoplankton — cause harm to fish, shellfish, marine mammals, seabirds, and people?
The abundance
of some zooplankton (i.e.
microscopic crustaceans in the water that eat
algae) was lower at higher salt concentrations, but not low enough to cause a bloom
of algae.
Microscopic algae living underneath sea ice are an essential source
of food in the Arctic ocean.
Moser is an expert in diatoms, which are
microscopic algae that have cell wall made
of opaline silica.
Diatoms are
microscopic algae that have cell wall made
of opaline silica.
It is really a type
of algae and can range in size from
microscopic to 100 feet in length.
Chlorella is a
microscopic single - cell freshwater
algae which has been found in numerous studies to be an amazing health promoting superfood used to treat some
of the most deadly diseases, such as cancer, Alzheimer's, and AIDS.
DE is composed
of finely ground Diatoms which are one celled
microscopic algae whose walls consist
of two parts and contain a mineral called silica.
Diatomaceous earth, sometimes referred to as «DE,» is a natural substance that is actually created from the remains
of diatoms,
microscopic water plants that are like
algae.
Imagery
of microscopic biological life found in the peatlands adorn the interior spaces
of the cylinders, bringing attention to the invaluable contribution these unseen
algae play in the carbon cycle.
The bright colors (and food source)
of healthy coral come from the
microscopic algae that live inside coral tissues.
As nutrients remain stuck at the bottom
of the lake, organisms ranging from
microscopic algae to fish can be threatened.
Blooms can come from
algae that range from
microscopic single - celled organisms to macroscopic seaweed, and cause harm through the production
of toxins or by accumulation
of the plants.