Ecological catching method for small-sized mountain stream fishes
A small-scale fish technology, applied in fishing, application, animal husbandry, etc., can solve the problems of natural environment and fish resource damage, artificial fishing difficulty, etc., and achieve good fishing effect, protection and regeneration
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Embodiment 1
[0045] A kind of concrete operation step of stream small-sized fish ecological fishing is as follows:
[0046] 1) Prepare the fishnet bag
[0047] see Figure 5 , The fishing net bag is a sleeve type structure formed by a fishing net 11 and a fishing net bag 12 set, and the mesh is 10mm.
[0048] The length of fishing net 11 is 30cm, is funnel-shaped, and import is big and outlet is little, and the diameter of import is 20cm, and the diameter of export is 5cm;
[0049] The length 60cm of fishing net bag 12 is collected, and one end is an inlet, and the other end is a closed end.
[0050] The fishing net 11 is positioned in the fishing net bag 12, and the entrances of the two are overlapped and connected by iron rings, so that two nets have one entrance altogether.
[0051] 2) Site selection
[0052] see figure 1 , select the river channel 2 at the gentler place of the mountain stream as the fishing site, and the water depth of the channel 2 is below 30cm. The river chann...
Embodiment 2
[0069] Channel 2 is a bifurcated channel.
[0070] see Figure 6 , the bifurcated river channel is divided into two streams by the river center island 7 from the horizontal middle, and the two streams converge into one stream not far downstream; the stone dam 3 in the bifurcated channel should be at the bifurcation Completely block the channel on the higher side of the river bed and let the water flow away from the channel on the lower side of the river bed.
[0071] Others are with embodiment 1.
Embodiment 3
[0073] River channel 2 is a wide water surface channel;
[0074] Wide-surface river means that the water surface of the river is wide, there are no small islands, and the water flow does not fork. On the side, the water flow has a lateral flow at this place; the length of the stone dam 3 in the wide water surface channel will be built up to the position where the water flow lateral flow is not obvious.
[0075] The completed picture of the wide water surface channel is as follows Figure 4 shown.
[0076] Others are with embodiment 1.
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