| S.No | SPECIES | St I | St II | 
      
        | I | Bacillariaphycea    (diatoms) | Cells/1 |  | 
      
        |  | Family : Coscinodisceae |  |  | 
      
        | 1 | Coscinodiscus apiculatus | + | + | 
      
        | 2 | Coscinodiscus centralis | * | * | 
      
        | 3 | C. centralis | + | ++ | 
      
        | 4 | C.concetricus | + | + | 
      
        | 5 | C.granii | + | + | 
      
        | 6 | C.gigas | +++ | +++ | 
      
        | 7 | C.radiatus | + | + | 
      
        | 8 | C.thori | * | + | 
      
        | 9 | Cyclotella sp | +++ | ++ | 
      
        | 10 | Diploneis sp. | + | + | 
      
        | 11 | Planktoniella    sol | + | +++ | 
      
        | 12 | Planktoniella    sp | ++ | +++ | 
      
        | 13 | Skeletonema costatum | + | ++ | 
      
        | 14 | Thalassiosira sp | +++ | +++ | 
      
        | II | Family:    Triceratiinae (Diatoms) |  |  | 
      
        | 1 | Ditylum    brightwelli | ++ | +++ | 
      
        | 2 | Ditylum sp | +++ | + | 
      
        | 3 | Triceratium reticuatum | * | +++ | 
      
        | 4 | Triceratium sp | +++ | ++ | 
      
        | III | Family:    Chaetoceraceae (Diatoms) |  |  | 
      
        | 1 | Chaetoceros affinis | * | + | 
      
        | 2 | C. curvicetus | ++ | ++ | 
      
        | 3 | C.decipiens | ++ | +++ | 
      
        | 4 | C. messanensis | + | + | 
      
        | 5 | C.diversus | ++ | +++ | 
      
        | 6 | C.indicus | + | +++ | 
      
        | 7 | C.comosum | * | + | 
      
        | 8 | Bacteriostrum furcatum | ++ | + | 
      
        | IV | Family:    Biddulphoidae (Diatoms) |  |  | 
      
        | 1 | Biddulphia biddulphia | + | +++ | 
      
        | 2 | B.heteroceros | * | +++ | 
      
        | 3 | B.reticulata | ++ | +++ | 
      
        | 4 | B. pulchella | + | +++ | 
      
        | 5 | Odentella sinensis | ++ | +++ | 
      
        | 6 | O.mobiliensis | + | ++ | 
      
        | V | Family:Eucambiinae    (Diatoms) |  |  | 
      
        | 1 | Eucambia sp | * | + | 
      
        | VI | Family:    Solenoidae (Diatoms) |  |  | 
      
        | 1 | Leptocylindrus danicus | * | + | 
      
        | 2 | Rhizosolenia cylindrus | ++ | +++ | 
      
        | 3 | R.imbricata | + | ++ | 
      
        | 4 | R. styliformis | ++ | + | 
      
        | VIII | Family:    Euodicidae (Diatoms) |  |  | 
      
        | 1 | Hemdiscus sp | + | + | 
      
        | IX | Order:Pennales    (Diatoms) |  |  | 
      
        |  | Family: Naviculaceae |  |  | 
      
        | 1 | Pleurosigma angulatum | + | ++ | 
      
        | 2 | P.elongatum | ++ | +++ | 
      
        | 3 | P.depressum | + | +++ | 
      
        | 4 | Nitzshia longissima | + | + | 
      
        | 5 | Pseudo-nitzschia    sp. | * | + | 
      
        | 6 | Navicula sp | ++ | +++ | 
      
        | X | Family:Fragilariaceae    (Diatoms) |  |  | 
      
        | 1 | Thalassiothrix    sp | ++ | +++ | 
      
        | 2 | Rhabdonema arcuatum | + | ++ |