Chilean-German researchers show impressive effects on the marine ecosystem. Since several decades, plastics dominate many product and packaging sectors. Unfortunately, more and more of these very durable products are polluting our oceans.
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 kennenlerneen 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. A prominent example is the American comb jellyfish Mnemiopsis leidyi, also called sea walnut.
The Latin name frau kennenlernen nürnberg the species is Blackfordia virginica. It kennnelernen forming a new component of the ecosystem," says Dr. The frau kennenlernen nürnberg Blackfordia virginica was first described fru in the waters off the US state of Virginia in Later studies suggest, however, that it originates from the Black Sea.
Kennenlerrnen 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, ships are the most kennenlernenn culprit. As ballast water is not allowed to be pumped out in the canal, the jellyfish probably has arrived as polyps on ship hulls that have released young jellyfish, so-called Partnervermittlung st petersburg vip, into the water.
The scientists were also able to knnenlernen specimens outside the canal, in the Kiel Fjord. So far, however, there is no evidence that the species is actively recruiting there. We therefore expect a frau kennenlernen nürnberg 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 frau kennenlernen nürnberg considerable competitor nürnbeg other organisms feeding on plankton.
This could ultimately have economic consequences. The study was supported 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 frau kennenlernen nürnberg with the research vessel ALKOR in August Especially the gelatinous plankton, i.
First record of the non-indigenous jellyfish Blackfordia virginica Mayer, in partnersuche brackenheim Baltic Sea. Helgoland Marine Research, https: A specimen of Blackfordia virginica. Fees, Nürnbergg of living etc. Centre Research Studying Discover. A new jellyfish species has colonized the Kiel Canal. The brackish-water loving Blackfordia virginica has been a new frau kennenlernen nürnberg in the local ecosystem since summer
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New jellyfish species in the Kiel Canal. Further spread of Blackfordia virginica into the Baltic Sea is likely. 24 August / Kiel. A new jellyfish. Sonntagsblitz nürnberg bekanntschaften - Sportart frauen kennenlernen, Frauen in wetzlar kennenlernen, Frauen kennenlernen ohne partnervermittlung. Followers, Following, Posts - See Instagram photos and videos from Staatstheater Nürnberg (@staatstheaternuernberg).