Roberto Pillon, Italien
Info
In December 2019, Marine Biodiversity Records published its latest report on “Non-native species in the Mediterranean at the beginning of the 2020s: recent changes”:
666 non-native species (excluding foraminifera) have been recorded in the Mediterranean.
Nine years earlier, the report “Alien species in the Mediterranean Sea by 2010. A contribution to the application of the European Union's Marine Strategy Framework Directive (MSFD). Part I. Spatial distribution” listed 955 species.
www.researchgate.net
These alien species enter the Mediterranean in two ways: once through the Red Sea and the Suez Canal (Lesseps' migrant) and once from the East Atlantic via the Strait of Gibraltar.
The first group includes the symbiotic crab Alpheus rapacida, which originates from the Indo-Pacific.
The impact of the introduction of alien species is usually invisible at first, but in serious cases it can lead to the displacement of native species.
The introduction of Alpheus rapacida quickly leads to new symbioses, meaning that the partner crab then also needs new symbiotic gobies in the Mediterranean, as shown in the photo by Roberto Pillon, in this case
In Lembeh, Indonesia, Cryptocentrus cf. cinctus has been described as a symbiotic goby, while in Micronesia, Ctenogobiops crocineus, Mahidolia spp. and Vanderhorstia spp. are also possible partners.
Cryptocentrus octofasciatus also forms a symbiotic relationship with the pistol shrimp.
666 non-native species (excluding foraminifera) have been recorded in the Mediterranean.
Nine years earlier, the report “Alien species in the Mediterranean Sea by 2010. A contribution to the application of the European Union's Marine Strategy Framework Directive (MSFD). Part I. Spatial distribution” listed 955 species.
www.researchgate.net
These alien species enter the Mediterranean in two ways: once through the Red Sea and the Suez Canal (Lesseps' migrant) and once from the East Atlantic via the Strait of Gibraltar.
The first group includes the symbiotic crab Alpheus rapacida, which originates from the Indo-Pacific.
The impact of the introduction of alien species is usually invisible at first, but in serious cases it can lead to the displacement of native species.
The introduction of Alpheus rapacida quickly leads to new symbioses, meaning that the partner crab then also needs new symbiotic gobies in the Mediterranean, as shown in the photo by Roberto Pillon, in this case
In Lembeh, Indonesia, Cryptocentrus cf. cinctus has been described as a symbiotic goby, while in Micronesia, Ctenogobiops crocineus, Mahidolia spp. and Vanderhorstia spp. are also possible partners.
Cryptocentrus octofasciatus also forms a symbiotic relationship with the pistol shrimp.
