How decapterus kurroides survives
The decapterus kurroides have a slender caudal stalk and a deeply forked caudal fin that creates a strong tail that helps them swim quickly. In addition, the eyes of most fish species have fatty eyelids, and the scales in the posterior segment of the lateral line are deformed into bony edge scales, which all have the function of reducing water flow resistance.

The decapterus kurroides are the fastest swimmers among the medium-sized marine fish. They sometimes appear in groups, sometimes in pairs or alone; when they are active on the outer edge of the reef, they will have different swimming styles according to different situations. For example, they usually cruise leisurely and slowly, and when they are threatened, they will be four-cornered or zigzag fast. Swim; the manufacturer of decapterus kurroides tells you that when they are preying in the sea, if they encounter a single-tailed prey, they will chase after them.
In addition, six-banded trevally adults swim in large groups on the cliff, forming a spectacular cylindrical fish storm. The manufacturer of decapterus kurroides tells you that there are two possible reasons, one is feeding, because there is a local upwelling there, the zooplankton is rich in food, and the other is in a resting state, especially when they are swimming slowly.
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