Effects of Organic Herbicides on Phototrophic Microbial Communities in Freshwater Ecosystems - Reviews of Environmental Contamination and Toxicology - page 94

Table 2 (continued)
Experimental system Conc. (mg/L) Community Parameters Effects LOEC Reference Comments

Primary production + 50

22-L microcosms
(4 weeks)

12-700 Periphyton Sulfolipid synthesis + 115 Nyström et al. ( 2000 )

Community composition + 21

PICT + 12

0.5-L microcosms
(7 weeks)

0.1-10 Phytoplankton Primary production + 0.1 Pannard et al. ( 2009 ) Inluence of

phosphorus
luctuations

Community composition + 0.1 On atrazine efffects

Outdoor artiicial
streams
(29 days)

3-300 Periphyton Primary production + 100 Pearson and Crossland

( 1996 )

500-L mesocosms
(7 days)

1.13-113 Phytoplankton Chlorophyll a + 113 Perschbacher et al. ( 2008 )

Primary production + 113

2.5-L lasks
(24-48 h)

25 Phytoplankton Community composition − Pinckney et al. ( 2002 )

1,300-L pond
mesocosms
(35 days)

10 Phytoplankton Chlorophyll a − Relyea ( 2009 )

Periphyton Biomass −

11-L mesocosms
(4 weeks)

25 Periphyton Chlorophyll a + Rohr and Crumrine ( 2005 ) Assessment of

cascading
trophic effects

Chlorophyll a + 500

20-L microcosms
(14 days)

7.5-1,000 Periphyton Community compositon + 30 Schmitt-Jansen and

Altenburger ( 2005a )

Comparison with
SSD

PICT + 125