Although one penguin is able to devour thousands of Krill in one session, animal plankton swarms may discover the disturbances in the water before the time of the meal. Telltale brand? Bird tube.
This is what researchers in the BGLOOW Laboratory of Ocean Sciences consider after studying the Krill movements that were caught from the Bansfield Strait in Antarctica. According to their results, it was published on March 20 in Borders in marine scienceIt is only a small amount of penguin Guangano (tube) to influence the behavior of small marine creatures.
“Here we appear for the first time that a small amount of penguin Guango caused a sudden change in the behavior of Kreil’s nutrition and swimming in the Antarctic,” explained Nicole Helsi, an interview and post -PhD researcher, in a accompanying statement.
To test how Krill responds to the chemical evidence of the nearby pencil road, HELLESSEY and its colleagues Krill placed in the aquarium at the Palmer Station on the island of Anves in Antarctica. Then they separated to six individuals and transferred them to a group of sea water, which is 34.7 degrees Fahrenheit. In order to better repeat their usual environment, the team stopped the surrounding lighting to imitate the depth of about 131 feet. During multiple experiments, researchers in the sea water mixed with algae, penguin tube or a mixture of both were examined while recording the results using a pair of automatic cameras. Then the scientists analyzed the shots based on the 3D position of the selected caramels in addition to the direction and speed of swimming.
The results were clear. While Krill is generally swimming directly on the source in what is known as Rheotaxis, it appears that the presence of Penguin Guano immediately affects their behavior. More specifically, Krill swimming 1.5 times faster than average while also making three times larger courses with more angles.
The penguin tube not only affects the caramel movements. At another stage of the experiment, the researchers noted that animal plankton consumes 64 percent lower algae after sensing what they thought could be nearby birds. This means that Krill participates in the dawood maneuvers to the point that they are eating less when Guano is in the water around them.
Helce said: “Such behavior is to escape from the nearby penguins will increase the possibility of Kerrel’s survival.” “These difficulties will increase significantly in a swarm, if their neighbors can discover the same signals and connect the danger to each other.”
The defensive response is most likely not only to penguins. Given the range of predators that feed regularly on Krill, the team sees that it is likely to show similar behavior in the presence of seals, whales and other predatics predatics.
As climate change continues to transform the ecosystems of the global oceans, this disclosure capacity may reduce Krill opportunities to survive. Although the team did not specify the specified chemicals in the penguin pipe that sends Krill to panic, they know that high levels of acids and warming temperatures can affect how animal plankton feels.
“Any changes on Krill behavior can have significant effects on the future southern ocean, as Krill in Antarctica is one of the main stone species in this ecosystem,” said Helce.
Regardless of the results of additional research, it seems that one thing is certain: dealing with the penguin tube is not an enjoyable experience.
Helsi warned: “The smell of the corrupt shellfish is emitted. It is not fun to deal with it.”