바다가 따뜻해지면서 꼬막의 먹이인 플랑크톤 번식이 늘었고, 큰 태풍이나 자연재해가 없어 살아남은 종패가 크게 늘었다.
As the sea got warmer, plankton breeding, the food of the cockles, increased, and there was no major typhoon or natural disaster, which led to a large increase in the number of manila clams.