35 relations: Apex predator, Aquatic toxicology, Bald eagle, Benthic zone, Benthos, Bioaccumulation, Biomagnification, Brook trout, Carp, Chemical substance, Concentration, Cytosol, Donald Mackay (scientist), Empirical evidence, Environment (biophysical), Fathead minnow, Food web, Fugacity, Fugacity capacity, Hydrophobe, Ingestion, Killer whale, Lamella (surface anatomy), Linear equation, Lipophilicity, Mathematical model, Mosquitofish, Organism, Osprey, Partition coefficient, Rainbow trout, Registration, Evaluation, Authorisation and Restriction of Chemicals, Structure–activity relationship, Toxic Substances Control Act of 1976, United States Environmental Protection Agency.
An apex predator, also known as an alpha predator or top predator, is a predator at the top of a food chain, with no natural predators.
Aquatic toxicology is the study of the effects of manufactured chemicals and other anthropogenic and natural materials and activities on aquatic organisms at various levels of organization, from subcellular through individual organisms to communities and ecosystems.
The bald eagle (Haliaeetus leucocephalus, from Greek ἅλς, hals "sea", αἰετός aietos "eagle", λευκός, leukos "white", κεφαλή, kephalē "head") is a bird of prey found in North America.
The benthic zone is the ecological region at the lowest level of a body of water such as an ocean or a lake, including the sediment surface and some sub-surface layers.
Benthos is the community of organisms that live on, in, or near the seabed, also known as the benthic zone.
Bioaccumulation is the accumulation of substances, such as pesticides, or other chemicals in an organism.
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.
The brook trout (Salvelinus fontinalis) is a species of freshwater fish in the salmon family Salmonidae.
Carp are various species of oily freshwater fish from the family Cyprinidae, a very large group of fish native to Europe and Asia.
A chemical substance, also known as a pure substance, is a form of matter that consists of molecules of the same composition and structure.
In chemistry, concentration is the abundance of a constituent divided by the total volume of a mixture.
The cytosol, also known as intracellular fluid (ICF) or cytoplasmic matrix, is the liquid found inside cells.
Donald Mackay, (born 30 October 1936) is a Canadian scientist specializing in environmental chemistry.
Empirical evidence, also known as sensory experience, is the information received by means of the senses, particularly by observation and documentation of patterns and behavior through experimentation.
A biophysical environment is a biotic and abiotic surrounding of an organism or population, and consequently includes the factors that have an influence in their survival, development, and evolution.
The fathead minnow (Pimephales promelas) is a species of temperate freshwater fish belonging to the genus Pimephales of the cyprinid family.
A food web (or food cycle) is a natural interconnection of food chains and a graphical representation (usually an image) of what-eats-what in an ecological community.
In chemical thermodynamics, the fugacity of a real gas is an effective partial pressure which replaces the mechanical partial pressure in an accurate computation of the chemical equilibrium constant.
The fugacity capacity constant (Z) is used to help describe the concentration of a chemical in a system (usually in mol/m3Pa).
In chemistry, hydrophobicity is the physical property of a molecule (known as a hydrophobe) that is seemingly repelled from a mass of water.
Ingestion is the consumption of a substance by an organism.
Lamellae on a gecko's foot. In surface anatomy, a lamella is a thin plate-like structure, often one amongst many lamellae very close to one another, with open space between.
In mathematics, a linear equation is an equation that may be put in the form where x_1, \ldots, x_n are the variables or unknowns, and c, a_1, \ldots, a_n are coefficients, which are often real numbers, but may be parameters, or even any expression that does not contain the unknowns.
Lipophilicity (from Greek λίπος "fat" and φίλος "friendly"), refers to the ability of a chemical compound to dissolve in fats, oils, lipids, and non-polar solvents such as hexane or toluene.
A mathematical model is a description of a system using mathematical concepts and language.
The western mosquitofish (Gambusia affinis) is a species of freshwater fish, also known commonly, if ambiguously, as simply mosquitofish or by its generic name, Gambusia, or by the common name gambezi.
In biology, an organism (from Greek: ὀργανισμός, organismos) is any individual entity that exhibits the properties of life.
The osprey or more specifically the western osprey (Pandion haliaetus) — also called sea hawk, river hawk, and fish hawk — is a diurnal, fish-eating bird of prey with a cosmopolitan range.
In the physical sciences, a partition-coefficient (P) or distribution-coefficient (D) is the ratio of concentrations of a compound in a mixture of two immiscible phases at equilibrium.
The rainbow trout (Oncorhynchus mykiss) is a trout and species of salmonid native to cold-water tributaries of the Pacific Ocean in Asia and North America.
Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) is a European Union regulation dating from 18 December 2006.
commented out as it doesn't appear to be immediately relevant & it is in the wrong place if it is relevant-->The structure–activity relationship (SAR) is the relationship between the chemical or 3D structure of a molecule and its biological activity.
The Toxic Substances Control Act (TSCA) is a United States law, passed by the United States Congress in 1976 and administered by the United States Environmental Protection Agency, that regulates the introduction of new or already existing chemicals.
The Environmental Protection Agency is an independent agency of the United States federal government for environmental protection.