carrying capacity 



catchment area 

 or drainage basin 



chenier 



chlorinity 

 colloidal system 



creel census 



crustal downwarping 



cultcti 



The maximum biomass or number ol individuals of a single spe- 

 cies that can be supported by a given habitat. 



An area in which surface runoff collects and from which it is 

 carried by a drainage system such as a river and its tributaries. 

 A continuous ridge of beach material built upon swampy deposits; 

 often supports trees such as pines or evergreen oaks. 

 The cloride and other halogen content, by mass, of water. 

 An intimate mixture of two substances, one of which called the 

 discontinuous or dispersed phase is uniformly distributed in a 

 finely divided state through the second substance called the con- 

 tinuous or dispersion phase; e.g., oil droplets (discontinuous 

 phase) in water (continuous phase). 

 An enumeration of sport fishermen and their catch. 

 A downward motion or movement of the earth's crust. 

 Mass of broken shells, pebbles, and debris placed in estuaries to 

 ser\'e as a substrate for oyster growth. 



D 



demersal 



diurnal 

 drawdown 



Living at or near the bottom of the sea or another water body; 

 refers to necktonic, or free swimming, aquatic animals that are 

 essentially independent of water movement, e.g., shrimp, fish. 

 Of, relating to, or occurring in the daytime. 



The magnitude of the change in watei' surface level in a well, 

 reservoir, or natural body of water resulting from the withdrawal 

 of water. 



ecotone 

 e dap hie 

 eustatic 



eutrophication 



evapo trans p ira t io n 



exploitation pressure 



Transition zone between two different habitat types. 



Part of or influenced by conditions of soil or substrate. 



Pertaining to worldwide fluctuations of sea level due to changing 



capacity of the ocean basins or the volume of ocean water. 



The natural or artificial addition of nutrients to bodies of water and the 



effects of added nutrients, often accompanied by oxygen deficiencies. 



The loss of water from the soil both by evaporation and by 



transpiration from plants growing thereon. 



The rate of utilization or removal of a natural resource. 



fades 



faulting 



fetch 

 flocculate 



fluvial 



In geology, any obsci-vable attribute of a rock or stratigraphic 

 unit, such as overall appearance or composition. 

 A fracture in rock along which the adjacent rock surfaces are dif- 

 ferentially displaced. 



The distance traversed by waves without obstruction. 

 To cause to aggregate, coalesce, or precipitate into a noncrystal- 

 line mass. 



Pertaining to or produced by the action of a stream or river; or 

 existing, growing, or living in or near a river or stream. 



XVlll 



