Pocit v dolnom Sasku: Rozsiahla stergeon sa znova objavil!

Pocit v dolnom Sasku: Rozsiahla stergeon sa znova objavil!

In a sensational moment for species protection, a European interference (Acipenser Sturio) was recently observed in the Lower Saxony waters, a species that has been considered extinct in Central Europe for decades. Video, ktoré zaznamenala miestna potápačská škola, ukazuje siluetu rýb. Historicky bol európsky jeseter rozšírený v riekach ako Labe, Rýn alebo Eider, ale úplne zmizol v dôsledku nadmerného rybolovu, znečistenia vody a zásahov do riečnej krajiny až do 60. rokov. Posledný prírodný inventár v dolnom Sasku vyšiel v Eider v roku 1969.

Returning projects in Germany and France have started since the 2000s, but the long-lasting sturgeons, which only become sexually mature at 12 to 16 years, are a major challenge for building stable populations. Natáčaná jeseter je v súčasnosti potenciálnym pamiatkam, eskalovaným chovným rybám alebo vedomým osídlením. The sighting is classified by experts as a glimmer of hope for species protection in German waters, such as Exxpress.at.

Tailwind for Presettlement Projects

The Federal Office for Nature Conservation (BFN) has been supporting research, breeding and resettlement projects for European sturgeon since 1996. Partners are the Leibniz Institute for Water Ecology and Inland Fisheries (IGB) and the Society for the Rescue of the Disturbance (GRS). A central goal of these initiatives is to build up a stable parent animal inventory in order to ensure the resettlement of the European interference. Genetické analýzy ukazujú, že posledné živé vzorky z Gironde sú totožné s historickými poruchami zo Severného mora. As a result, offspring from this region were used for settlement projects in the North Sea catchment area, reports bfn.de.

A remarkable campaign took place on September 13th when 100 young European sturgeons were exposed to the Elbe near Magdeburg as part of a resettlement program. This has been the first offspring for the river since 2015 and is a crucial step to restore a self-conserving interference population, such as blinker.de. Federal Environment Minister Steffi Lemke emphasized the importance of long -term strategies and cooperation for the success of species protection.

Dlhé perspektívy a výzvy

Resettlements, ktoré sa začali v 90. rokoch, čelia rôznym výzvam. Around 19,600 young distortions have already been suspended in the Elbe, but these came from French offspring, and the programs had to be interrupted in 2014 due to the collapse of these stocks. Currently, the parenting stock in Germany comprises more than 400 animals that are between 6 and 13 years old and are kept in large breeding facilities on the IGB to enable offspring.

Presídlenie a zachovanie týchto pôsobivých druhov nie sú len ekologické, ale aj kultúrne významy. Európsky jeseter je považovaný za ekologický ukazovateľ stavu riečnych systémov. His return could therefore not only strengthen the ecosystem, but also serve as a sign of successful cooperation in environmental research and in nature conservation.