Supplementary material 1 from: Monti-Birkenmeier M, Diociaiuti T, Umani SF (2019) Long-term changes in abundance and diversity of tintinnids in the Gulf of Trieste (Northern Adriatic Sea). In: Mazzocchi MG, Capotondi L, Freppaz M, Lugliè A, Campanaro A (Eds) Italian Long-Term Ecological Research for understanding ecosystem diversity and functioning. Case studies from aquatic, terrestrial and transitional domains. Nature Conservation 34: 373-395. https://doi.org/10.3897/natureconservation..29841