Temporary rearing type releasing device capable of protecting fries and releasing method
A technology for raising device and seedlings, applied in the field of temporary raising and releasing devices, can solve the problems of reducing the survival rate of snail seedlings and being easily taken away by sea currents, and achieves the effect of improving the ecological restoration effect of snails
Active Publication Date: 2022-01-11
MARINE FISHERIES RES INST OF ZHEJIANG
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Problems solved by technology
[0004] The purpose of the present invention is to provide a method that not only can effectively avoid spreading snail seedlings on the sea surface in the prior art, but is easily taken away by ocean currents and distributed to seabed areas that are not suitable for the attachment and growth of snail seedlings, thereby reducing the number of snail seedlings. The problem of the survival rate of seedlings; but also can be beneficial to make the snail class seedling diffusion distribution can protect seedlings holding type release device and release method
Method used
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specific Embodiment 1
[0036] Specific embodiment one: as figure 1 As shown, a kind of holding-type release device capable of protecting seedlings includes a base 1, a support 2 and a holding device for snail seedlings. In this embodiment, the base is a hollow concrete base, and the outer surface of the hollow concrete base is provided with a plurality of communication holes communicating with the inner cavity of the hollow concrete base. In this way, the hollow concrete base can also be used as a fish reef, providing habitat and shelter for fish schools. Certainly, the base may also be a base of other structures, for example, a steel frame base.
[0037] The support 2 includes a vertical rod 2.1 and an inclined guide rod 2.2 arranged on the top of the base, the upper end of the inclined guide rod is fixed on the upper part of the vertical rod, and the lower end of the inclined guide rod extends obliquely downward toward the outside of the vertical rod. In this embodiment, the upper part of the in...
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The invention discloses a temporary rearing type releasing device capable of protecting fries and a releasing method, and aims to provide a temporary rearing type releasing device capable of protecting fries and a releasing method, which not only can effectively solve the problem that the survival rate of the snail fries is reduced as the snail fries are sown on the sea surface in the prior art, are easily taken away by ocean current and are distributed to a seabed area which is not suitable for attachment growth of the snail fries, and can be beneficial to diffusion and distribution of the snail fries. The temporary rearing type releasing device capable of protecting the fries comprises a support and a snail fry temporary rearing device, wherein the support comprises an inclined guide rod; the snail fry temporary rearing device comprises a temporary rearing box, a floating frame, a connecting rope and a sliding balancing weight sliding along the inclined guide rod, the temporary rearing box comprises a rearing box body, a sliding guide sleeve fixed to the rearing box body, a scraping plate located in the rearing box body and a sealing and shielding plate located on the outer side of the rearing box body, and the inclined guide rod is sleeved with the sliding guide sleeve in a sliding mode, so that the temporary rearing box can slide along the inclined guide rod.
Description
technical field [0001] The invention relates to a releasing device, in particular to a temporary raising type releasing device and a releasing method capable of protecting seedlings. Background technique [0002] Breeding and release is an important means of artificial marine ecological repair. At present, the operation of snail multiplication and release is generally as follows. First, artificial breeding is carried out, and then the snail seedlings are released into sea areas where snail resources have declined, so that the natural population of snails can be restored. The traditional snail multiplication and release is to transport the snail seedlings to the release sea area by a transport ship, and then manually spread the snail seedlings from the sea surface to a certain sea area; However, since the snail seedlings are spread on the sea surface, the current in the water layer near the sea surface is relatively large, and it is easy to be carried away by the sea current...
Claims
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IPC IPC(8): A01K61/51A01K61/60A01K61/65A01K61/70
CPCA01K61/51A01K61/60A01K61/65A01K61/70Y02A40/81
Inventor 张洪亮朱凯李哲朱文斌
Owner MARINE FISHERIES RES INST OF ZHEJIANG