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A cross-shaped, golden squid technology, applied in fish farming, application, climate change adaptation and other directions, can solve the problem of high cost, unsuitable for large-scale proliferation of golden squid, unsuitable for the habit of golden squid to spawn multiple times, affecting golden squid Egg production and other issues, to achieve the effect of being conducive to transportation and storage, high strength, and excellent flexibility
Active Publication Date: 2014-09-24
OCEAN UNIV OF CHINA
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[0004] Although the effect of using squid cages as a spawning base is good, the squid cage itself is for fishing purposes, which is easy to damage the spawning broodstock, and is not suitable for the habit of golden squid spawning multiple times, which affects the spawning amount of golden squid; and the squid cage is complicated to make. , the high cost is not suitable for the large-scale proliferation of golden squid
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Embodiment 1
[0025] Pass the fixed center shaft through the hole on the wide side of the tube frame, the bottom circular tray of the fixed center shaft supports the two tube frames, buckle a fixing buckle on the top of the fixed center shaft, and clamp the frame side of the tube frame into the fixing buckle slot Form a cross shape in the center, and then vertically tie the cross-shaped spawning reef to the cable through the small hole at the top of the fixed axis. During the spawning season of golden squid in late May, it will be released into the shallow waters near the coast of Rizhao, Shandong Province, and the two ends of the cable will be tied to floats. Balls and cement lumps; put traditional tamarisk and Artemisia annua spawning reefs at the same time as a control; the results showed that the egg attachment rate on the spawning reef of Tamarix japonica was 74%, and that on the spawning reef of Artemisia annua was 71.2%. The egg attachment rate on the spawning reef reaches 87.2%. Comp...
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Abstract
The invention discloses a cross-shaped foldable sepia esculenta egg laying reef, which comprises a cable and a cross-shaped egg laying reef on the cable, wherein a floating ball and a cement lump are arranged at the two ends of the cable respectively; the cross-shaped egg laying reef comprises two rectangular tube frameworks and a fixed middle shaft; the tube frameworks are coated with nets respectively; holes are formed in the middle parts of two wider edges of the tube frameworks; the fixed middle shaft passes through the holes to connect the two tube frameworks together, thereby forming a cross shape; the bottom end of the fixed middle shaft is provided with a circular tray, and the top end of the fixed middle shaft is buckled with an annular fixing buckle; the tube frameworks are vertically tied on the cable through a tether after being assembled into the cross shape with the fixing buckle through the fixed middle shaft. The cross-shaped foldable sepia esculenta egg laying reef is easy to assemble and disassemble, is convenient to transport and store, is low in manufacturing cost, and is durable; even if a certain part is damaged, the entire egg laying reef does not need to be discarded; the egg laying reef has small incident flow resistance and a large hatching area, and is suitable for near-shore shallow sea areas with small wind waves.
Description
technical field [0001] The invention relates to a spawning reef, in particular to a cross-shaped foldable golden squid spawning reef. Background technique [0002] Golden squid (Sepia esculenta), also known as cuttlefish and mullet, belongs to Cephalopoda, Sepia order, Sepiaidae, and is a wide-temperate migratory species. It prefers to spawn near islands with a water depth of 5-10 meters, high salinity, clear water, slow flow, hard bottom, and dense algae reefs. When spawning, it has sandblasting and burrowing habits, and its parents die one after another after reproduction. Golden squid is widely distributed in the Russian Far East Sea, Honshu, Shikoku, and Kyushu in Japan, the west coast, south coast of North Korea, and the waters of the Philippine Islands. In my country, it is mainly distributed in Lanshantou, Qingdao, and the central and northern parts of the Yellow Sea in Rizhao, Shandong. It has a short life cycle, fast generation renewal, and rapid growth. It is an e...
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