Generalised linear model (binomial errors, logit link) of the effect of sample taxonomic affiliation and sample age over sequencing success.

The reported values, are for the core family group (Acarnidae, Ancorinidae, Axinellidae, Dyctionellidae, Dysideidae, Halichondridae, Iotrochotidae, Microcionidae, Mycalidae, Plakinidae, Raspailidae, Tedaniidae, Tetillidae and Thorectidae; upper value) and for this group together with the families Chalinidae, Clionaidae and Suberitidae (middle value), and with the families Chondropsidae, Coelosphaeridae, Crellidae, Desmacellidae, Isodictyidae and Podospongiidae (lower value). N.S. = not significant.