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Welcome to the Diatom Image Database! The Periphyton Group at Florida International University created and maintains the Diatom Image Database, which includes over 980 diatom taxa found in the greater Everglades region of south Florida. Please send questions or comments about the Diatom Image Database to Franco Tobias .

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Map of south Florida Loxahatchee (LOX) WCA 2A WCA 3A Biscayne Bay Shark River Slough (SRS) Taylor Slough (TS) Florida Bay Everglades National Park (ENP) Everglades National Park (ENP)

Brachysira brebissonii

Brachysira brebissonii

Lange-Bertalot & G. Moser (1994):"Brachysira. Monographie der Gattung. Wichtige Indicator-Species fur das Gewasser-Monitoring und Naviculadicta nov.gen.", pg.20,21, Taf43, fig.1-6
Bas. Navicula aponina (Brebisson ex Kutzing 1849), Syn. Anomoneis brachysira ((Brebisson ex Rabenhorst) Grunow in Cleve 1895)
Ecological Preference:
Valve is rhombic-lanceolate to elliptic-lanceolate with rapidly tapering apices (cf. var. thermalis); raphe is filiform with marked central pore; axial area is straight and narrow, leading to a small, rhombic central area; striae is radial, becoming convergent at the poles (transapical striae "brachysira-type"); length is 12-ca.45(?50 or more) µm, breadth is 4.5-8(?10)µm
  • Southeast Florida Coastal Mangroves
  • Dosing Project
  • CERP
  • Transect Project

  • Sample localities:
  • Water Conservation Areas (WCAs)