35 relations: Algae, Algal bloom, Aquatic plant, Biodilution, Biomagnification, Biomass (ecology), Chlorophyll, Dictionary.com, Drinking water, Eutrophication, Fish, Fish kill, Granitoid, Greek language, Human impact on the environment, Hypolimnion, Igneous rock, Lake trout, Limiting factor, List of biological development disorders, Nitrogen, Nonpoint source pollution, Nutrient, Oligotroph, Oxygen, Oxygenation (environmental), Phosphorus, Primary production, Secchi disk, Sichuan, Surface runoff, Trophic level, Trophic level index, United States Environmental Protection Agency, Water quality.
Algae (singular alga) is an informal term for a large, diverse group of photosynthetic organisms that are not necessarily closely related, and is thus polyphyletic.
An algal bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems, and is recognized by the discoloration in the water from their pigments.
Aquatic plants are plants that have adapted to living in aquatic environments (saltwater or freshwater).
Biodilution, sometimes referred to as bloom dilution, is the decrease in concentration of an element or pollutant with an increase in trophic level.
Biomagnification, also known as bioamplification or biological magnification, is the increasing concentration of a substance, such as a toxic chemical, in the tissues of tolerant organisms at successively higher levels in a food chain.
Biomass is the mass of living biological organisms in a given area or ecosystem at a given time.
Chlorophyll (also chlorophyl) is any of several related green pigments found in cyanobacteria and the chloroplasts of algae and plants.
Dictionary.com is an online dictionary whose domain was first registered on May 14, 1995.
Drinking water, also known as potable water, is water that is safe to drink or to use for food preparation.
Eutrophication (from Greek eutrophos, "well-nourished"), or hypertrophication, is when a body of water becomes overly enriched with minerals and nutrients that induce excessive growth of plants and algae.
Fish are gill-bearing aquatic craniate animals that lack limbs with digits.
The term fish kill, known also as fish die-off, refers to a localized die-off of fish populations which may also be associated with more generalized mortality of aquatic life.
A granitoid or granitic rock is a variety of coarse grained plutonic rock similar to granite which mineralogically is composed predominantly of feldspar and quartz.
Greek (Modern Greek: ελληνικά, elliniká, "Greek", ελληνική γλώσσα, ellinikí glóssa, "Greek language") is an independent branch of the Indo-European family of languages, native to Greece and other parts of the Eastern Mediterranean and the Black Sea.
Human impact on the environment or anthropogenic impact on the environment includes changes to biophysical environments and ecosystems, biodiversity, and natural resources caused directly or indirectly by humans, including global warming, environmental degradation (such as ocean acidification), mass extinction and biodiversity loss, ecological crises, and ecological collapse.
The hypolimnion or under lake is the dense, bottom layer of water in a thermally-stratified lake.
Igneous rock (derived from the Latin word ignis meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic.
Lake trout (Salvelinus namaycush) is a freshwater char living mainly in lakes in northern North America.
A limiting factor is a variable of a system that, if subject to a small change, causes a non-negligible change in an output or other measure of the system.
Nitrogen is a chemical element with symbol N and atomic number 7.
Nonpoint source (NPS) pollution is a term used to describe pollution resulting from many diffuse sources, in direct contrast to point source pollution which results from a single source.
A nutrient is a substance used by an organism to survive, grow, and reproduce.
An oligotroph is an organism that can live in an environment that offers very low levels of nutrients.
Oxygen is a chemical element with symbol O and atomic number 8.
Environmental oxygenation can be important to the sustainability of a particular ecosystem.
Phosphorus is a chemical element with symbol P and atomic number 15.
Global oceanic and terrestrial photoautotroph abundance, from September 1997 to August 2000. As an estimate of autotroph biomass, it is only a rough indicator of primary-production potential, and not an actual estimate of it. Provided by the SeaWiFS Project, NASA/Goddard Space Flight Center and ORBIMAGE. In ecology, primary production is the synthesis of organic compounds from atmospheric or aqueous carbon dioxide.
The Secchi disk, as created in 1865 by Angelo Secchi, is a plain white, circular disk in diameter used to measure water transparency or turbidity in bodies of water.
Sichuan, formerly romanized as Szechuan or Szechwan, is a province in southwest China occupying most of the Sichuan Basin and the easternmost part of the Tibetan Plateau between the Jinsha River on the west, the Daba Mountains in the north, and the Yungui Plateau to the south.
Surface runoff (also known as overland flow) is the flow of water that occurs when excess stormwater, meltwater, or other sources flows over the Earth's surface.
The trophic level of an organism is the position it occupies in a food chain.
The trophic level index (TLI) is used in New Zealand as a measure of nutrient status of lakes.
The Environmental Protection Agency is an independent agency of the United States federal government for environmental protection.
Water quality refers to the chemical, physical, biological, and radiological characteristics of water.