A new research at the Australian National University (ANU) has revealed the history of ancient fishing history, including what type of fish people regularly eat in their diet.
The study found that fish bones found in the archaeological excavations of the Indonesian island of Alor have been discovered from the ancient fish hooks found in the burial place of people around 12,000 years.
The leading archaeologist Sophio Samper Krorom of ANU, an archaeologist and anthropologist, said that 7,000 years ago the change of fishing behavior was revealed.
"The inhabitants of Aloris were fishing for open water species 20,000 years ago, and about 7,000 years ago they started fishing only for breeding," he said.
According to Dr Samper Carro, a similar pattern was revealed on the nearby island of Timor, where it indicated that change of behavior was due to environmental circumstances.
"Apparently because of changes in sea changes and environmental conditions, the changes caused by human beings can not be ruled out," he said.
The results were made to determine the habitat of archeological material using the traditional method of analyzing biology in biology. Dr Samper Carro said he had to experiment with a new approach due to the difficulty of defining the difference of very similar looking bones in the area of 2,000 famous fish.
"This research was first researchers able to reliably determine the use of fish habitat by using this method, and is an important step forward in terms of human behavior in history."
"Most of the bones found in archaeological sites are veterinary, which are very difficult to identify species and are very similar.
"If you do not know the species, we do not know their place of residence.
"In Indonesia you have 2,000 species of fish to be able to know which bones belong to what type of species we need 2,000 fish in your comparative collection.
"Supposedly, in five months, I tried to carry out each of the veterinary veterinary fish and I think I got 100 out of 9000 bones.
Dr Samper Carro instead found geometric morphometrics, a process that looks at small differences in size and shape of physical objects. Using more than 20,000 digital images and compiling 31 bits of each bone, he was able to digitally identify each of the veterinary habitats.
Materials provided Australian National University. Note: Edit content for style and length.