Abstract
The opening of the Suez Canal in 1869 enabled a large number of Indo-Pacific marine species to expand their ranges into the Mediterranean Sea (Galil et al. 2017), entering the Gulf of Suez from the Red Sea and migrating northwards towards the easternmost basin of the Mediterranean. These species have been called 'Lessepsian migrants' (Yonow 2015), 'Lessepsian immigrants' (Kleitou et al. 2019), or 'Lessepsian invaders' (Ivkic et al. 2019), named after Ferdinand de Lesseps who planned the Suez Canal's construction, or 'Erythraean non-indigenous species' (Galil et al. 2017), after the Erythraean Sea, an earlier maritime designation including both the Red Sea and the Gulf of Aden.
Highlights
The opening of the Suez Canal in 1869 enabled a large number of Indo-Pacific marine species to expand their ranges into the Mediterranean Sea (Galil et al 2017), entering the Gulf of Suez from the Red Sea and migrating northward toward the easternmost basin of the Mediterranean
Most are colorful and popular subjects for underwater photographers who have shared numerous observations on internet sites, such as Sea Slug Forum and Mediterranean Slug Site, or directly with sea slug taxonomists (Yonow 2015). This stimulated the use of sea slugs as model organisms in the monitoring of invasive species, in which recreational divers volunteered as citizen scientists (FernandezVilert et al 2018, Kleitou et al 2019, Paz-Sedano et al 2019)
Based on records produced by underwater photographers in Israel, Rothman and Galil (2015) concluded that the reputedly rare Erythraean nudibranch P. ocellatus appeared to be not so rare in the eastern Mediterranean
Summary
Rarity in the native range of the Lessepsian migrant Plocamopherus ocellatus (Nudibranchia) Hoeksema, Bert W.; Yonow, Nathalie. Document Version Publisher's PDF, known as Version of record. Rarity in the native range of the Lessepsian migrant Plocamopherus ocellatus (Nudibranchia): Fact or artifact? More information can be found on the University of Groningen website: https://www.rug.nl/library/open-access/self-archiving-pure/taverneamendment. Take-down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. For technical reasons the number of authors shown on this cover page is limited to 10 maximum
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