In a recent study, researchers from Michigan State University analyzed the bones of scarce Hawaiian petrels and revealed the existence of a few changes in the open-oceanfood chain due to which these birds are diminishing gradually.
According to the U. S. Fish & Wildlife Service’s Pacific Islands Fish and Wildlife Office, this Hawaiian petrel bird that features a wing span of three feet and is 16 inches in length, generally have to spend a lot of time over the open waters of the Pacific in order to search their next meal.
It has been noticed that their eating habits have gradually changed. Instead of feasting on higher prey, they are satisfying their hunger with smaller ones. Researchers also noticed that, over the past 100 years the petrels prays used to be large fish, squids and crustaceans but now this is not the situation.
However, according to researchers, it is somehow the growth of industrialized fishing that has result into this food chain amendment.
In this regard, researchers seem to be highly concerned about the fortune of the Hawaiian petrels and other such species that are experiencing related changes in their diet.
As said by Co-author Peggy Ostrom, a zoologist at Michigan State University, when such human influenced changes start occurring, it becomes quite risky and dreadful.
