Ulva sp. 1

3.9 Ulva sp. 1 and Ulva sp. 2

Of the 52 tuf A sequences generated, two have remained unresolved at the species level.

The sample SAM1166, collected in the Lido station in the Lagoon of Venice, falls into the Ulva sp. 1 clade ( Figure 4 View Figure 4 ) with a sample from Tasmania ( Australia), reported as Ulva sp. 10GWS (GenBank Accession number JN029338 View Materials , Kirkendale et al. 2013).

Additionally, three samples from Lake Ganzirri (CB174, CB175 and CB164) fall into the Ulva sp. 2 clade ( Figure 4 View Figure 4 ) with a sample from Aransas Pass, Texas, USA (GenBank Accession number MT859901 View Materials , Melton and Lopez-Bautista 2021). Clarifying the taxonomic identity of these spp. requires further work.