Larval fish at time series station Helgoland Roads, North Sea, in 2003

For the larval surveys, a CalCOFI ring trawl with a 500 µm mesh net (aperture 100 cm, length 400 cm, equipped with a flow meter) was towed for 15 min from a research vessel. The...

在幼体调查作业中，采用搭载流量计的500μm网目网（网口口径100厘米、网身长度400厘米）的CalCOFI环拖网，由海洋调查船拖曳作业15分钟。The...