[1] Spawning occurs in the springtime beginning in May as water temperature warms and continues until around October with species tending to only live for approximately one year.

[4] A. punctata are benthic gastropods found in both littoral and sublittoral habitats with a large range spanning the northeast Atlantic and the Mediterranean sea.

Using their radula, A. punctata tear up seaweeds in order to consume them and are found to eat up to one-third of their body weight per day of algae.

[6] Mediterranean species of A. punctata feed primarily on red algae of the genus Laurencia which provide them with metabolites known to produce antifungals, antivirals, and cytotoxins for self defense.

[10] Serotoninergic fibers are also found in the rhinophore nerves which are believed to have a physiological role in olfactory responses to amino acid presence.

[7] Aplysia punctata also have large neurons which make them a model species in the study of the cellular basis of learning and memory.

[4] Aplysia punctata's shell is located internally to protect their heart and other organs from environmental conditions like wave action.

[15] However, living in the middle to lower intertidal zone and shallow waters,[16] A. punctata naturally faces fluctuations in pH and has been observed to have no decrease in calcification of new shell material when exposed to acidic environments similar to those of having increased dissolved carbon dioxide.

[13] Although, they do undergo increased metabolic rate in low pH environments which is attributed to the maintenance of calcium carbonate and aragonite structures in waters depleted of these materials.