CATDOLL : CATDOLL: How do squids reproduce and mate?

1. How do squids reproduce and mate?

Scientific research shows that deep-sea squids not only have very tangled love behaviors, but also have a very peculiar mating technique. Deep-sea squids are indeed affectionate during mating. They will dig holes in each other's bodies and even use sperm pods that can dig holes themselves.

By studying 10 species of squid that live between 300 and 1,200 meters in oceans around the world, scientists have discovered a variety of bizarre sexual behaviors, including some squids depositing their egg sacs on corals and some male squids drilling holes in female squids.

The study was led by Hank Jan Hoven, a doctoral student at the University of Groningen in the Netherlands. They carefully examined the squids caught and specimens in museums. Hoven's team reconstructed the squid's sexual behavior by studying the corpses. They believe that the male of the luminescent broad-fin squid will use its sharp beak and claws on its tentacles to tear a 5-centimeter-deep wound on the female, and then use the appendages specially used for mating to put its sperm capsule into the female's wound.

Even more amazing is that the sperm of the South Sea Hercules hook squid itself can dig holes in the female body. Hoven said: "The sperm can drill into the female body independently, and it may secrete some enzyme that can melt the squid's body tissue."

Cai Yingya, a professor at Guangdong Ocean University, said that the mating methods of cephalopods, including squids, cuttlefish and octopuses, are indeed very complicated and mysterious to humans. Some species, such as golden cuttlefish, will entwine their arms and arms together, and the male cuttlefish will pass the sperm capsule to the female cuttlefish's oral membrane. Other octopuses have "mating limbs" filled with semen, which will crawl into the female octopus' reproductive tract like a separate organism.

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2. Does anyone know where the reproductive organs of squids are located?

Male squids do not have a true penis. One or two of the ten arms of these animals double as organs, known as stalked arms, or copulatory arms. During mating, male squids usually extend their stalked arms into the mantle cavity of the female squid and deliver the tiny spermatophore directly to the vicinity of the female's egg cells.

3. When is the squid harvest season?

The squid harvest season is from March to August every year, and May to August is the best fishing period. There are a lot of squids during this period, and it is very easy to catch them. A large number of squids will come ashore to reproduce, making them easier to catch.

Squids usually live in the deep sea. Except for the breeding season, if you want to catch squid, you need to go fishing in the deep sea. The time for fishing is usually at night. Because squids are phototactic, you can use lights to attract fish when fishing.

Squid can be fished during the day or at night, but it is easier to fish at night. The time for squid fishing can be controlled in three time periods: dusk, midnight, and dawn. Fishing can be done at both high tide and low tide. Squids have intervals when foraging, so you must be patient during the fishing process.

Squids enter their breeding season from August to September every year. When choosing a fishing spot, you should choose an area with clear water, high salinity, small waves and slow currents, seabed reefs and shells everywhere, clumps of seaweed, and an uneven bottom.

When fishing squid, use a 1.6-2 meter short rod, with a medium-sized fishing reel, a fishing line diameter of 0.3-0.35 mm, a line length of about 100 meters, a medium-sized hook, 3-5 hooks tied into a string of hooks, a brain line length of 15-20 cm, a hook distance of 30-40 cm, and a lead weight of 60-80 grams.

4. Habits of Squid

Squid, also known as squid, cuttlefish or calamari, is an animal of the suborder Osmoothias in the class Cephalopoda of the class Mollusca.

The body is slender and long-conical, with ten tentacles, two of which are relatively long. There is a suction cup at the front end of the tentacle, and there is a horny tooth ring inside the suction cup. When catching food, it wraps the tentacles around and swallows it. It likes to gather in groups, especially in the spring and summer mating and spawning season. Usually, two or three larger male squids lead the way. At night, it likes light, so when coastal fishermen catch it, they use gas lights to lure it to the surface of the water, and then use nets to quickly block its escape direction from behind and catch it. The squid meat is delicious, and it is even more delicious when grilled after being dried. There are a large number of "bubbles" containing pigments on the surface of the skin of living squids, and these "bubbles" will change with changes in mood.

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5. How many eggs can a squid lay at one time?

We make caviar from eggs here. During the breeding season, female squids lay clusters of crystal clear, plump eggs that look like grapes. The white ones are eggs, and the yellow ones are secretions. The white ones can be eaten, but the yellow ones should not be eaten.

As long as the frozen squid is fresh, the roe can be eaten. Don't throw it away. It's very expensive here.

6. Do squids have parasites?

Squid itself does not have parasites. However, if it is not stored properly, it will produce a large number of bacteria and parasites. When people eat this kind of food, it means they are eating pathogens. The parasites will enter the body through the blood and cause various diseases.

People are infected with parasites because they eat food or drink water that contains parasites or worm eggs. Barbecue food, seafood, and raw meat all contain parasites, which can enter the body through food and reproduce in the human body.

Squid has high nutritional value. It contains a lot of protein and fat and is relatively low in calories. Generally speaking, you will not gain weight by eating it because its nutritional value is not inferior to beef and tuna.

Squid contains a small amount of fat and carbohydrates, but a large amount of cholesterol. The trace elements in this food are also relatively high, including phosphorus, potassium, and sodium.

Eating squid in moderation can delay the aging of the body. Squid contains a large amount of nutrients that can protect cells from free radicals and has many benefits for humans.

Squid can also relieve fatigue. This food contains a variety of amino acids that can help people relieve stress and relax the body and mind.