Biometric measurements of fish in the Eastfrisian Wadden Sea during POLARIS cruise PO0297@en

Depth, water was calculated as mean from bathymetric depths at start/end of trawl. Standard length of Brachyra = width of carapax of Brachyra; Standard length of Natantia = length of rostrum to telsons of Natantia.水深（Depth）的计算值为拖网作业开始与结束时刻海底测深值（bathymetric depths）的平均值。短尾类（Brachyra）的标准体长（Standard length）等于其头胸甲（carapax）的宽度；游泳亚目（Natantia）的标准体长则为其额剑（rostrum）至尾节（telsons）的长度。