a jellyfish. this creature doesn t have stinging cells unlike true jellyfish. this is why you aspers can touch them. the scientist has specialized in comb joey. their natural home is the atlantic the east coast of the u.s. . for nearly a year aspers has established that this species is extremely adaptable and can reproduce at lightning speed. that is that since they have no food competitors here they can grow incredibly large take this one for example it s $6070.00 millimeters if you just take the body a specimen like this produces $15000.00 eggs per day that can fertilize themselves we have to keep an eye on them although the salt content in the central baltic is too low for them but it s a super habitat for reproducing. the port of kiel on the baltic
denmark and sweden but they haven t conquered the majority of the baltic and. if we can show that the southern spaces has a different genetic repertoire and can cope with the lowest salt content then at the sudden once transferred north that could be a threat on the other hand we don t know what would happen if the southern and northern jellies were brought together we could get super potent hybrids or we could get hybrids that can t reproduce it s a very exciting question that s really significant for the future of the baltic. the scientist is bringing 40 come jellies from america the black sea and the baltic together in the lab. over the next few years she ll carry out an evolutionary and breeding experiments funded by the use marie curie program and the danish council for independent research for natural sciences. the plankton
looked like something from outer space not much is known about their life cycle. german scientist cornelia ja spruce meets shinichi way from japan. he s considered the leading expert of the international jellyfish scene. the aspers as a plantain expert and she wants to find out more about the giant jellyfish swarm in the sea of japan. they indicate that something is not right in the world s oceans. the eerie giant jellyfish invasions are putting japanese fishermen at risk. or professor way shows footage that looks like a scene from a horror film. when
this is a this isn t a native species it doesn t belong here so it s important that we keep an eye on it so we know how it s developing and whether it s taking over the ecosystem. that would be disastrous. the baltic is home to fish such as cod and herring which are important for the fish market. or the war he called jellies eating their young. cornelia ja spruce performs an experiment to find out. she gives the jellyfish caught a larvae for food. jellyfish doesn t eat the fish eggs they spit them out again. the opposite happens to the very young cod babies. but comb jelly laps them up. when you have this kind of taken a to fish lava but mostly just those that is still in the yolk sent up they don t