FIRST RECORD OF THALASSIOSIRA CATHARINENSIS GARCIA & BÄRWALDT DUTRA (BACILLARIOPHYTA) FROM ARGENTINIAN MARINE COASTAL WATERS

ANDREA SUSANA LAVIGNE, INES SUNESEN, EUGENIA ALICIA SAR 

FIRST RECORD OF THALASSIOSIRA CATHARINENSIS GARCIA & BÄRWALDT DUTRA (BACILLARIOPHYTA) FROM ARGENTINIAN MARINE COASTAL WATERS

Recibido:  04/01/2018

Aceptado: 03/04/2018

Editor: Gabriel Bernardello

Resumen:  First record of Thalassiosira catharinensis Garcia & Bärwaldt Dutra (Bacillariophyta) from Argentinian marine coastal waters. Several ultrastructural analyses of taxa belonging to the genus Thalassiosira from Argentinian coastal waters were carried out, nevertheless, the smaller fraction of the nanoplanktonic Thalassiosira was frequently overlooked. The aim of this study is to show morphological variation of T. catharinensis, to compare material found in marine coastal waters of Anegada Bay, Province of Buenos Aires, with the material analyzed in the protologue and allied taxa, and to record the species for the first time from Argentina, extending its distribution.

Palabras clave:  Anegada Bay, Argentina, diatoms, first record, marine coastal waters, Thalassiosira catharinensis.