DISCLOSURE STATEMENT
No potential conflict of interest was reported by the authors.

ETHICS STATEMENTS

None of the species use in the present study is included in any protected or threatened species on the IUCN Red List or the Spanish and Portuguese governments. Therefore, no specific permissions or licenses were needed for the sampling. We followed ethic procedures to ensure no substantial harm to the collecting individual.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are openly available in GenBank of NCBI at https://www.ncbi.nlm.nih.gov/genbank/, under the accession numbers OP661154 for Facelina auriculata and OP661155 for Runcina aurata . The associated **BioProject**, **SRA**, and **Bio-Sample** numbers are PRJNXXXXX, SXXXXXX, and SXXXXX respectively.”