3.3 | Metabarcoding ctenophores
In 2012 on a transit from Monterey Bay, CA, USA to the mouth of the Gulf of California, MX Pitz et al. (2020) sampled 15 offshore stations with 100 meter-depth vertical net tows which they sequenced for18S and COI metabarcoding fragments. The authors found 9105 COI sequences from thirteen of the stations that were assigned only to the family level (Pitz, pers. com). We used our newly assembled ctenophore sequence library and assigned their fragments more precisely to ten different species rather than three families. Here, species identifications were reduced to a presence/absence matrix (Figure 6).