Tintinnid community structure in the Pearl River Estuary were investigated 6 times (10, 29 October 2014; 11, 30 June 2015 and 15 March, 1 April 2017) from upstream freshwaters to polyhaline waters. A total of 43 tintinnid species in 15 genera were identified.

The environments of Arctic Ocean nearshore areas experience high intra- and inter-annual variability, making it difficult to evaluate the impact of anthropogenic warming. However, a sediment record from the southern Canadian Beaufort Sea allowed us to

The tintinnid ciliate Tintinnopsis fimbriata Meunier, 1919 is mainly distributed in mesohaline coastal waters of Arctic, temperate, and subtropical regions. Since its cytological features were unknown, the species is redescribed and neotypified from material

The tintinnid ciliate Tintinnopsis fimbriata Meunier, 1919 is mainly distributed in mesohaline coastal waters of Arctic, temperate, and subtropical regions. Since its cytological features were unknown, the species is redescribed and neotypified from material

The phylogenetic relationship among tintinnid ciliates are relatively poorly studied based on molecular data. In the present work, seven species belonging to five genera of the order Tintinnida (Amphorellopsis acuta, Codonellopsis nipponica, Favella taraikaensis,