Distribution of Zeuxo turkensis at marinas along Iberian Peninsula and Moroccan coast with ratio of six stages of development: manca, neutrum, female with oostegites, brooding female, juvenile male and adult male at particular marinas and mean distribution calculated for Mediterranean and Atlantic Ocean. Star indicates the stations from where molecular data were obtained, red star – station sampled in 2021 from Sado estuary, Portugal (results of demographic study not presented here).