280 



TABLE 3 



MERCURY CONCENTRATION FACTORS FOR SELECTED 

 AQUATIC BIOTA AFTER 1-DAY EXPOSURE TO ORGANIC 



MERCURY COMPOUNDS* 



Biota 



203 



HgCHaCl 



(^^^^HgCOOCHg 



Phytoplankton 

 Bacillariophyta 

 Melosira sp. 

 Synedra sp. 

 Chrysophyta 



Scenedesmus sp. 

 Hudson River algae, 

 detritus, and bacteria 

 Crustacea 

 Cladocera 

 Daphnia pulex 

 Leptodora kindti 

 Ostracoda 



Cypris sp.f 

 Copepoda 

 Nauplii 

 Copepods (cyclopoid 



copepodids) 

 Mesocyclops edax 

 Eurytemora af finis 

 Acartia tonsa 

 Isopoda 



Chiridotea almyraif 

 Amphipoda 

 Gammarus sp. 

 (G. daiberi and 

 G. tigrinus) 

 Monoculodes edwardsi 

 Mysidacea 



Neomysis americana 

 Decapoda 

 Crangon septemspinosa'f 

 Insecta 

 Diptera 

 Chaoborus sp. 

 Mollusca 

 Gastropoda 

 Amnicola limosa 

 Ichthyoplankton 

 Perciciitiiyidae 

 Morone saxatilis 

 Eggs 

 Larvae 



201,600 ±1,200 (2) 

 390,000 ±72,000 (2) 



12,000 ±(1) 



240,000 ± 220,000 (3) 

 140,000 (1) 



15,000 ±4,300 (2) 

 9,800 ±7,000 (2) 



360,000 ±200,000 (2) 

 250,000 ±190,000 (6) 

 540,000 ±220,000 (2) 



4,900 ±2,600 (22) 



2,800 ±700 (2) 

 53,000 ± 15,000 (2) 



14,200 ± 1,000 (2) 



12,000 (1) 



63,000 (1) 



15,000 ±4,500 (2) 



105,000 ±46,000 (6) 

 180,000 ± 170,000 (2) 



2,660 ±950 (13) 



1,700 ±(1) 



4,039 (1) 



620 ± 220 (10) 

 5,200 ±410 (3) 



10,000 ± 29,000 (2) 



*Numbers in parentheses are numbers of experiments. 



fConcentration factors are based on uptake after exposure of 5 to 9 days. 



