LAGOON 



w 



1. A shallow sound, pond, or channel near 

 or communicating with a larger body of 

 water. 



2. A settling pond for treatment of wastewater. 



LARVA 



The immature form of an animal which is unlike 

 its parents. Larva are usually self-feeding 

 but must pass through some sort of metamorphosis 

 before assuming the characteristics of the 

 adult; in insects, the wormlike stage between 

 the egg and the pupa . 



LAW OF THE MINIMUM, 

 LIEBIG'S 



"The growth and reproduction of an organism 

 is dependent on the nutrient substance, such 

 as oxygen, carbon dioxide, calcium, etc., that 

 is available in minimum quantity." (See 

 Limiting Factor ) 



LAW OF TOLERANCE, 

 SHELFORD ' S 



"When one environmental factor or condition is 

 near the limits of toleration, either minimum 

 or maximum, that one factor or condition will 

 be the controlling one and will determine 

 whether or not a species will be able to 

 maintain itself." (See Limiting Factor) 



LENTIC 



Pertaining to standing (nonflowing) waters 

 such as lakes, ponds, and swamps. (See Lotic) 



LIFE CYCLE 



The various phases, changes, or stages through 

 which an individual passes from the fertilized 

 egg to death of the mature organism. (See 

 Metamorphosis) 



