A kind of hiding and climbing device for blue crab larvae

A technology for mud crabs and larvae, applied in fish farming, application, climate change adaptation, etc., can solve the problems of low seedling efficiency in nursery ponds, inability to mix and cultivate crab fry, and adverse effects of crab fry cultivation, etc., to reduce mutual fights. Killing, improving the survival rate, avoiding the effect of fighting crabs

A technology for mud crabs and larvae, applied in fish farming, application, climate change adaptation, etc., can solve the problems of low seedling efficiency in nursery ponds, inability to mix and cultivate crab fry, and adverse effects of crab fry cultivation, etc., to reduce mutual fights. Killing, improving the survival rate, avoiding the effect of fighting crabs

CN105875452BActive Publication Date: 2018-08-17上海蛟驰水产科技有限公司
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  • A kind of hiding and climbing device for blue crab larvae
  • A kind of hiding and climbing device for blue crab larvae

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Experimental program
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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] see Figure 1-Figure 2 , a climbing device for hiding blue crab larvae, including a climbing member 3 and a cultivation pool; the climbing member 3 includes a support frame 1 and a flexible net 2, the support frame 1 is made of hard plastic material, and the support frame 1 is a double-layer structure , the flexible net 2 is vertically, horizontally and vertically arranged and fixed on the double-layer structure of the support frame 1 in three directions, so that the interior of the support frame 1 forms a plurality of hexahedrons composed of flexible net 2 for accommodating young crabs. Cavity; the support frame 1 is bent multiple times along its length direction to reduce the occupied volume; part of the clinging member 3 is suspended in the cultivation pond by wire ropes, and part of the clinging member 3 is placed on the bottom of th...

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Abstract

The invention relates to a mud crab larva hiding and clinging device which comprises a clinging component (3) and a culture pond, wherein the clinging component (3) comprises a support frame (1) and a flexible net (2); the support frame (1) is made of a hard plastic material and has a double-layer structure; the flexible net (2) is laid out and fixed on the double-layer structure of the support frame (1) in the longitudinal direction, transverse direction and vertical direction to form multiple hexahedron cavities for containing mud crab seedlings formed by the flexible net (2) in the support frame (1); the support frame (1) is bent repeatedly along the length direction, and the occupied volume is reduced; and some of the clinging components (3) are hung in the culture pond by thread ropes, and some are placed at the bottom of the culture pond so that the clinging components (3) are layered and staggered in the water body and also staggered from the positions of aeration holes in the culture pond.

Description

technical field [0001] The invention relates to a hiding and climbing device for blue crab larvae, which belongs to the technical field of blue crab larvae cultivation. Background technique [0002] During the breeding process of blue crab nursery, the larvae undergo a transition from planktonic to benthic. In the breeding process of blue crab seedlings, blue crab seedlings like to inhabit and cling to objects in the water, and individuals of different developmental stages and sizes have different preferences for the depth of the water body and the size of the mesh. Too dense gathering of blue crab larvae will also lead to fighting and killing each other, which greatly affects the survival rate of seedlings. [0003] The prior art has taken corresponding measures to prevent blue crab larvae from fighting and killing each other. For example, the invention patent document with the authorized announcement number CN202714076U discloses a hanging net for raising mud crab seedlin...

Claims

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Application Information

Patent Timeline
17 Aug 2018
Publication
CN105875452B
IPC
A01K61/59
CPC
Y02A40/81
Inventors
蒋科技; 孟永永