Species and habitats - Raja clavata - Female - Mature - CGFS annual abundance in October 2009
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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.
生物数据常以丰度形式呈现，具体为数量或密度值（单位：个/平方千米），且均需采用以10为底的(x+1)对数变换进行对数转换。
