In biological trawlnet system of line type with plankton particle diameter tally function

The utility model discloses an in biological trawlnet system of line type with plankton particle diameter tally function mainly includes two parts: subtotal on water is the part under water, part on water includes LOPC control end, trawlnet control end, deck control end, first giga switch, first fiber optical transceiver and deck power, part under water including a victor power module, the 2nd victor power module, under water lamp, first relay, altimeter, other sensors, treater, second relay, gigabit ethernet camera, inclination detection module, control the mainboard under water, three serial portss change ethernet module, second giga switch, second fiber optical transceiver, LOPC host computer, power supply storehouse, trawlnet host computer, dry battery storehouse, the utility model discloses the scope that marine plankton surveyed can be further enlarged, can plankton data and other data of gathering be fed back under water from the host computer in real time.