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BiologyReproduction takes place in spring and summer. The species has planktonic larvae. P. minuta is considered to be an opportunistic species that prefers to colonize newly available habitats, thereby taking advantage of a relatively fast growth.
All members of the family Sigalionidae, including this species, are active, free-living predators taking a variety of small invertebrates (Hartmann-Schröder, 1971; Wolff, 1973; Curtis, 1977; Fauchald & Jumars, 1979; Bosselmann, 1991).