"Wow, there are so many seabirds..."
"There must be a school of fish..."
"Get ready to add floats to the trawl nets. Also, find the throw nets."
After thinking it over, Feng Ye decided that he should prepare in advance to avoid being caught off guard if a school of fish appeared.
Hand-thrown nets have limited catches, so it's definitely necessary to have one on hand.
However, to get a good harvest, you still need to rely on trawling.
To catch fish in the middle and upper layers of the water with a bottom trawl, it is necessary to increase buoyancy and improve the overall buoyancy of the net, thereby raising the vertical height of the net opening.
Of course, that's not enough.
Over-reliance on buoyancy devices may reduce the stability of the nets, so other measures must be taken in conjunction with them.
First, when setting the net, the drag line should not be lowered completely; it should only be 3 to 5 times the depth of the water to slow down the sinking speed of the net.
Secondly, the angle of the net plate needs to be adjusted to reduce dependence on the seabed and allow the entire net to float to the target water layer during trawling operations.
Of course, lightweight mesh panels can also be used instead.
However, there were no spare lightweight mesh panels on the Dong Sheng ship, so the angle of the existing mesh panels had to be adjusted.
Finally, the operating speed needs to be increased to five or six knots to utilize the hydrodynamic force to maintain the stability of the net in the middle and upper water layers.
With these measures in place, bottom trawls can effectively catch fish in the middle and upper layers of the water.
"good."
Han Qiwen snapped out of his daze, quickly responded, and pulled Ye Chenliang along to get to work.
Feng Ye then turned and got into the driver's seat; he needed to wake up Feng Xuan and the others.
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