An improved extraction method reveals varied DNA content in different parts of the shells of Pacific oystersQiuyun Jiang, Lei Wei, Chaowei Gai, Wenchao Yu, Cheng He, Man Chen, Zhen Zhang, Hongce Song, Xiaona Wang and Xiaotong WangAquat. Living Resour., 32 (2019) 5DOI: https://doi.org/10.1051/alr/2019003