Copepod production based on samples taken during April 2000 in the north-eastern Aegean Sea

The samplings were taken with the WP-2 closing net and the WP-2 modified net. The type of tows was vertical. The WP-2 closing net had a mesh size 200µm and a net mouth diameter 57cm. The tow speed was 1m/s and the filtered water volume was estimated by the net mouth surface and the towing distance. The WP-2 modified net had a mesh size 45µm and a net mouth diameter of 50cm. The tow speed was 0.5m/s and the filtered water volume was estimated by the net mouth surface and the towing distance.

本数据集的采样作业采用WP-2闭锁网（WP-2 closing net）与WP-2改进网（WP-2 modified net）两种采样装置。拖网作业方式为垂直式。其中WP-2闭锁网的网目尺寸（mesh size）为200微米（µm），网口直径（net mouth diameter）为57厘米；拖曳速度（tow speed）为1米每秒（m/s），过滤水量（filtered water volume）通过网口表面积与拖曳距离（towing distance）估算得到。WP-2改进网的网目尺寸为45微米，网口直径为50厘米；拖曳速度为0.5米每秒，过滤水量同样通过网口表面积与拖曳距离估算获得。