Table 24. Trophic state classification of the Barataria and 

 Pontchartrain basins. 



Station 



TSI score Trophic group 



Barataria basin: 



Caminada Pass 



Bayou Rigolettes 



Barataria Bay 



Lake Salvador 



Bayou Perot 



Little Lake 



Bayou Barataria 



Barataria Waterway 



Natural swamp stream 



John-the-Fool Bayou 



Little Lake Oil and Gas Field 



Bayou Chevreuil 



Lake Cataouatche 



Bayou des Allemands 



Bayou Segnette 



Gulf Intracoastal Waterway 



Bayou des Allemands 



Burtchell Canal 



Bayou Citamon 



Lac des Allemands 



Bayou Chevreuil 



St. James Canal 



M-0 



M 



M 



M 



M 



M 



M 



M 



M 



M 



M 



E 



E 



E 



E 



E 



E 



E 



E-H 



E-H 



E-H 



H 



Lake Pontchartrain: 

 Open Lake (Dow and Turner 1980) 

 Pass Manchac 

 Mid-lake 



Inner Harbor Navigational Canal 

 The Rigolets 

 St. Charles Parish (Cramer 1978) 

 Transect 1: 



Crossbayou Canal 



Bayou LaBranche 



Offshore Swamp 

 Transect 2: 



Walker Canal 



Bayou Piquant 



Offshore marsh 



-5.2 

 -5.5 

 -6.3 

 -6.2 



26.7 

 17.6 

 -3.4 



1.4 

 0.6 

 0.9 



M-0 

 M-0 

 M-0 

 M-0 



H 



H 



M 



E 

 E 



M 



H = hypereutrophic ; E 

 = oligotrophic . 



eutrophic; M - mesotrophic; and 



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