{"thcode":2,"term":{"code":53,"name":"aquatic biology","parent":650,"scope":"The scientific study of organisms living in or near water.  This term is to be used for the science of 'aquatic biology' and for  biological studies in fresh and brackish water. For marine biological studies, use 'marine biology'."},"uf":[],"bt":[{"code":650,"name":"life sciences","parent":1019,"scope":"Branches of science that study living and fossil organisms."},{"code":1019,"name":"sciences","parent":1,"scope":"Major educational fields, fields of study, and professional groupings within USGS."},{"code":1,"name":"Categories","parent":null,"scope":"Thematic terms for categorizing information resources.  This thesaurus is intended to support finding and understanding scientific information."}],"nt":[],"rt":[{"code":54,"name":"aquatic ecosystems","parent":319,"scope":"Communities of interdependent organisms living primarily in or on water."},{"code":85,"name":"benthic ecosystems","parent":54,"scope":"Biologic communities and habitats at the bottom of lakes, streams, or oceans."},{"code":185,"name":"commercial fishery resources","parent":391,"scope":"Stocks of fish and other seafood used for marketing purposes."},{"code":311,"name":"ecology","parent":650,"scope":"Study of the relations between living plants and animals and their environment."},{"code":358,"name":"estuarine ecosystems","parent":54,"scope":"Biological communities and habitats within sea inlets or the zones where rivers meet the seas which are subject to tidal effects and the mixture of fresh and saltwater."},{"code":391,"name":"fishery resources","parent":777,"scope":"The stock of anadromous, marine, and freshwater fish in fishing areas of commercial, subsistence, and recreational value."},{"code":419,"name":"freshwater ecosystems","parent":54,"scope":"Biological communities and habitats that exist in lakes, rivers, ponds, and other bodies of water that are not salty."},{"code":589,"name":"inland fishery resources","parent":391,"scope":"Stocks of fish available to be taken in lakes, streams, ponds, rivers, and other inland bodies of water."},{"code":673,"name":"macroinvertebrates","parent":841,"scope":"Invertebrate animals large enough to be studied without a microscope."},{"code":702,"name":"marine biology","parent":650,"scope":"Branch of biology concerned with the organisms and habitats of the seas and oceans."},{"code":704,"name":"marine ecosystems","parent":54,"scope":"Biological communities composed of plants and animals living primarily in or on seawater."},{"code":705,"name":"marine fishery resources","parent":391,"scope":"The stock of fisheries located in seas and oceans."},{"code":744,"name":"migratory species","parent":841,"scope":"Species that have a pattern of moving from one geographical area to another, primarily according to the seasons, and usually traveling long distances along established routes."},{"code":903,"name":"plankton","parent":841,"scope":"Floating aquatic plants (phytoplankton) and animals (zooplankton) which are often microscopic and drift with the current in lakes, rivers, and oceans."},{"code":968,"name":"recreational fishery resources","parent":391,"scope":"The stock of fish and other seafood resources in areas used for recreational fishing."},{"code":1056,"name":"shellfish","parent":841,"scope":"Aquatic invertebrates with shells, usually mollusks and crustaceans. Includes clams, lobsters, and oysters."},{"code":1306,"name":"water quality","parent":1174,"scope":"The chemical, physical, and biological characteristics of water, usually in respect to its suitability for a particular purpose."},{"code":1326,"name":"wetland ecosystems","parent":319,"scope":"Ecosystems whose soil is saturated for long periods seasonally or continuously, including marshes, swamps, and ephemeral ponds.  More detailed terms for wetlands can be selected from the FGDC Wetland Classification <http:\/\/fgdc.gov\/standards\/status\/sub3_4.html>."}]}