Jellyfish are thriving in our warming sea , and their rise is think to have negative impacts on maritime ecosystems . According to new findings published inBiology Letters , at least one metal money of dive seabird appear to profit from jellyfish increases . By direct mellow - denseness jellyfish clustering , raspberry predators get to feast on the little Pisces the Fishes aggregating within the tangle of tentacle .
Until now , reflection of interaction between jellyfish and chick predators have been rare . A team guide by Nobuhiko Sato from theSokendai Graduate University for Advanced Studiesin Tokyo attached data and video loggers on to eight thick - billed murre ( Uria lomvia ) on Alaska ’s St. George Island in the eastern Bering Sea back in August of 2014 . The bird - behave video loggers recorded 97 daytime plunk from four of the murres . On average , they dive 78 meters in 150 second gear .
After analyzing footage of 197 feeding events , the team find that murres frequently fed on fish swim among tentacles of the northern sea nettle ( Chrysaora melanaster , show to the rightfield ) . During their ascension in 82 of the dives ( that ’s 85 % of all the dives recorded ) , the Bronx cheer meet the expectant jellyfish a amount of 179 times . Of those murre - jellyfish meeting , 49 of the jellyfish obliterate juvenile Pisces among their tentacles . Most of these fish were untried walleye Jackson Pollock that were less than 50 millimeters long , and they might have been feeding on plankton pin by the jelly ' tendrils .
The majority of the time , the razz fed on lone Pisces the Fishes not associated with jellyfish . But in about a fifth of all the fish - feed events immortalize for the four raspberry , the murre approached jelly and give on Pisces swimming around their tentacle . AsPacific Standardpoints out , this is a comparatively mellow number for a antecedently unseen conduct .
Jellyfish enhance feeding chance of seabirds by focus their prey , the team conclude , and some nautical predators may benefit from the rise in jelly act – a jellyfish sideboard , as they draw .
Image in school text : Miloslav PetrtylCC BY - NC viaBioLib.cz
