Species and habitats - Squalus acanthias - All ages - Presence probability in...

Biologic data have been expressed in abundance (numbers or density values (nbr/km²)) and always required to be log-transformed using a log10(x+1) transformation.生物数据常以丰度（数量或密度值，单位：个/平方千米（nbr/km²））的形式呈现，且均需采用以10为底的(x+1)对数变换进行对数转换。