F-2 



FLOATING AQUATIC 

 PLANTS 



Rooted plants that wholly or In part float 

 on the surface of the water; e.g., water lilies, 

 water hyacinth and duckweek. (See Emersed 

 Aquatic Plants , Submersed Aquatic Plants) 



FLOOD TIDE 



That period of tide between low water and the 

 succeeding high water; a rising tide. (See 

 Ebb Tide) 



FLORA 



Plant life. 



FLUVIAL 



Of or pertaining to rivers; growing or living 

 in streams; produced by river action, as a 

 fluvial plain. 



FOOD CHAIN 



Dependence of a series of organisms, one upon 

 the other, for food. The chain begins with 

 plants and ends with the largest carnivores; 

 e.g. , phytoplankton ■»■ zooplankton ■* forage 

 fish -*■ game fish. 



FOOD CYCLE 

 (Food Web) 



All the interconnecting food chains In a 

 community . 



FORAGE FISH 



Fish, usually smaller prolific species, that 

 are important as food for predatory species. 



FREE-SWIMMING 

 (Motile) 



Actively moving about in water or capable of 

 moving about in water. (See Sessile) 



