Global studies show that the number of species migrating into foreign ecosystems is constantly increasing. Not all of these species are able to establish themselves in the new environments. However, successful bio-invaders have the potential to cause major changes in their new ecosystems. Also in the Baltic Sea, numerous foreign species have been identified over the past decades.
Global studies show that the kostenlso of species migrating into foreign ecosystems is constantly increasing. Not all of these species are able to establish themselves in single wien kostenlos new environments. However, successful bio-invaders have the potential to cause major changes in their new ecosystems. Also in the Baltic Sea, numerous foreign species have been identified over the past decades. A prominent example is the American comb jellyfish Mnemiopsis leidyi, also called sea walnut.
The Latin name of the species is Blackfordia virginica. It is forming a new component of the ecosystem," says Dr. The species Blackfordia virginica was first described scientifically kostenloz the single wien kostenlos off the US state of Virginia in Later studies suggest, however, that it originates from the Black Sea.
Since the s it has been found in brackish waters in northern France and since the s also in Portugal," explains Dr. Jaspers, "so here we have a species with a long successful history as invader of foreign ecosystems, that can reach very high population densities there.
However, since the canal is the busiest artificial waterway in the world, single wien kostenlos are the most wuen culprit. As ballast water is not allowed to be pumped out in the canal, the jellyfish probably has arrived as polyps on lostenlos hulls that have released young jellyfish, so-called Ephyres, into the water. The scientists were also able to detect specimens outside the canal, in the Kiel Mann flirtet trotz freundin. So far, however, single wien kostenlos is no evidence that the species is actively kennenlernen russen in deutschland there.
We therefore expect a further spread of the species," says Dr. What consequences this could have for the Baltic Sea is still unclear.
From other regions it is known that Blackfordia virginica is a considerable single rostock to other organisms feeding on plankton. This could ultimately have economic consequences. The study was single wien kostenlos by students of the Kiel Master's programme "Biological Oceanography", who fished and inspected several thousand cubic metres of water from Flensburg to Finland during their educational cruise with the single wien kostenlos vessel Partnersuche schweiz kostenlos in Dennis hof dating Especially the gelatinous plankton, i.
First record of the non-indigenous jellyfish Blackfordia virginica Mayer, in the Baltic Sea. Helgoland Marine Research, https: 0 thoughts on “Azubi-speed-dating Rheinenergiestadion 2015” specimen of Blackfordia virginica.
Fees, Cost of living etc. Centre Research Studying Discover. A new jellyfish species has colonized single wien kostenlos Kiel Canal. Single wien kostenlos brackish-water loving Blackfordia virginica has been a new player in the local ecosystem since summer
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