In autumn, squid undergoes a semi-hibernation process. When the temperature drops below 15°C, they become inactive and rely on minimal breathing to survive. To prepare for this period, it's essential to feed them more high-fat foods like mealworms, crickets, and fly larvae. This helps them build up fat reserves that will sustain them through the winter months.
Proper harvesting is also crucial during this time. As the temperature decreases, squid tend to burrow into the mud. If you're planning to harvest them before winter sets in, start by draining the pond water and carefully removing some of the mud from the bottom. Then, gently turn over the mud to collect the squid. Avoid using sharp tools like shovels, as they can damage or injure the squid. It's also important to sort the squid by size, keeping both large and small ones to ensure better spawning in the next season. Since eels are hermaphrodites, smaller eels often have higher fertility and spawning potential. Keeping only large individuals for breeding isn't efficient or scientifically sound.
Another key consideration is protecting the squid from predators and freezing temperatures. Once they begin hibernation, the pond should be drained, but the soil must remain moist. Covering the area with a plastic net can prevent animals like cats and weasels from preying on them. In extremely cold weather, insulation and anti-freeze measures are necessary. For ponds with good water conditions, the deep-water overwintering method is recommended. This involves maintaining a water depth of 50 to 70 centimeters and placing aquatic plants and duckweed on the surface to help regulate the temperature and protect the squid during the winter.
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