Sea food

From the earliest age of human civilization, seafood has been an important food source: it can easily be hunted and gathered, even by those lacking power or speed. Basket-like traps have long been widely used to hunt fish in rivers and lakes. Sometimes, fish was speared just as one would hunt a small animal. Ancient Egyptian civilization used the symbol of fish for counting large numbers; they ate fish both dried and fresh. Jews abstain from all shellfish due to kashrut. It is looked over often, but the rise of ancient Greek and Roman civilization was in no small part due to the abundant fish of the Mediterranean Sea.[citation needed] Shellfish was a staple food in many locations and in the Jomon period of Japan; the amount of shellfish consumed and thrown away from that time is used to measure how many people lived in certain area.