CATDOLL : CATDOLL: What is the diet of Triodon? Where do the throat teeth of fish come from?

1. What is the diet of Triodon?

Tridentata is a carnivorous near-shore bottom fish.

It feeds on crustaceans and shellfish on the seabed. It has a certain yield along the coast. In the Fujian coast, spawning parent fish can often be caught from March to May, and 30-35 mm juvenile fish can be caught from August to September. Adult fish are generally 250-300 mm long. The liver is large and delicious, and the meat is coarse. It can be eaten fresh or pickled. According to records, the internal organs have weak alkaline poison.

The back of the body is light grey, and the abdomen is silvery white. The first dorsal fin is black, with a black spot on the back of the body below its base, and there is often a black axillary spot at the top of the pectoral fin base. The other fins are yellow.

2. Where do the throat teeth of fish come from?

Also known as branchial teeth, hypopharyngeal teeth, and pharyngeal teeth. Pharyngeal teeth are a structure unique to Cyprinidae fish, born on the pharyngeal bones formed by the specialization of the last pair of gill arches, usually in one to three rows.

Basic Information

Chinese name

Pharyngeal teeth

Foreign name

Pharyngeal tooth

Introduction

Pharyngeal tooth

Also called gill teeth, hypopharyngeal teeth, and pharyngeal teeth. In bony fish, the teeth that grow on the gill arches. Species with well-developed pharyngeal teeth have underdeveloped jaw teeth, and conversely, species with well-developed jaw teeth have poorly developed or no pharyngeal teeth.

Pharyngeal teeth are a unique structure of carp fish, which grow on the pharyngeal bones formed by the specialization of the last pair of gill arches, and usually have one to three rows. They are usually flattened laterally and are comb-shaped or flattened laterally with hooked ends, and some are molar-shaped. They rub against the thick keratin pads on the dorsal side (called pharyngeal grinding) to chew food. The number of rows of pharyngeal teeth, the number of teeth in each row, and the shape of the teeth are one of the classification criteria of carp fish, and there is a certain format for recording pharyngeal teeth, which is called the tooth formula. For example, the tooth formula of carp is 1, 1, 3/3, 1, 1, and the numbers are recorded from left to right, that is, there are 3 rows of teeth on each side, the first and second rows on the left have 1 tooth each, and the third row has 3 teeth, the inner row on the right pharyngeal bone has 3 teeth, and the two outer rows have 1 tooth each. The tooth formula of grass carp is 2.5/4.2, that is, there are two rows of pharyngeal teeth on each side, the first row on the left has 2 teeth, the second row has 5 teeth, the inner row on the right has 4 teeth, and the outer row has 2 teeth.

3. What is the largest predatory fish in the world?

The largest predatory fish in existence is the great white shark, and killer whales are not fish.

4. What are the morphological characteristics of farmed fish?

Ancient warship

The ancient warship is a very common edible fish in Southeast Asia, its country of origin, but in my country, many fish lovers also raise them as ornamental fish. Since the ancient warship is very common and widely raised in Southeast Asia, fish lovers do not have to worry about their source.

1. Appearance characteristics

The ancient warship is a super strong fish species. And it grows very quickly. It can grow very large in a very short time. So you should be careful not to keep them in a small aquarium. The aquarium should be no less than 120 cm. Otherwise, it will have an adverse effect on their growth.

2. Reproduction characteristics

The reproduction method of the ancient warship is the same as that of the Siamese fighting fish. It also lays eggs in a bubble nest. The male fish is responsible for the protection of the eggs and young fish. The young fish that have just started to swim can immediately eat larger baits such as water lice and silk earthworms due to their large size. It should not be difficult to raise them. The young fish are quite aggressive. At about 2 years old, the ancient warship reaches maturity and can reproduce the next generation. This fish has a certain aggressiveness and is too large. Therefore, it can only be raised with large fish. In the process of raising ancient warships, an albino variety appeared, which is the golden warship. It is also called the fortune-bringing fish. In addition, the scientific community has disclosed two subspecies of the ancient warship: the red-winged warship and the seven-barred warship.

5. What does the Egyptian angelfish eat? Is it an omnivorous fish?

What does the Egyptian angelfish eat? The Egyptian angelfish is an ornamental fish that is relatively easy to raise. It is an omnivorous ornamental fish. It does not have very high requirements for food and can accept general artificial baits. The Egyptian angelfish especially likes to eat live bait and raw bait, but in order to make the food more nutritious, you should pay attention to the reasonable combination of baits.

The Egyptian Angelfish lives in the Amazon River, where it has a rich diet of mosquito larvae, earthworms, water fleas, aquatic insects, small fish, shrimps, and other things. It is an omnivorous fish. Therefore, if you want to keep it in an aquarium, I will list several baits that are easier to get.

1. Frozen bloodworms: Almost all fish like to eat this food, but because the source is not very clean, most of them are bacteria-carrying, and fish are prone to get sick if fed for a long time. It is recommended that healthy fish should not be fed this food. However, for fish with no appetite, it can be a good bait. It is better to feed it for a while, and then change to other baits when the fish are stable.

2. Frozen brine shrimp: Brine shrimp is a crustacean that lives in seawater. It is not like water fleas, but more like shrimp. Because it grows in brackish water, some freshwater bacteria will not be brought in [because seawater bacteria cannot survive in freshwater, so there is no problem of bacteria]. It is rich in calcium, which is the best bait for Egyptian angelfish that value height. However, you should pay attention to whether the brine shrimp you bought is fresh [open it and smell it to see if it smells bad. If it smells bad, it is not fresh, so try to use less]. It is a good choice to use brine shrimp as a staple food!

3. Fish hamburgers: Usually used as a great feed for angelfish, because its ingredients are very nutritious for fish and can make the fish thicker and fatter. It is also a very good feed for Egyptian angelfish, but hamburgers can easily pollute the water quality, so feed in small amounts and eat them up immediately without leaving any leftovers. [At first, they may not be used to it, so you can stop feeding for a day and then feed again. Feed a little at first and see how it goes. Slowly they will get used to it.

In addition to the above baits, you can also feed with artificial feed [add a timer feeder, thin flakes are more suitable, but don't let your beloved fish eat too much or it will be very picky. Don't feed too much at one time, it will pollute the water quality. I don't recommend feeding here, just treat it as adding or subtracting food when you are at work. After all, the Egyptian Angelfish is so precious, if you want to keep it strong, you must rely on your careful care!

6. What are the terms in fish morphology?

Fish morphology: Study the external characteristics and internal structure of fish, understand the relationship and functions of various parts, and explain the development laws of various organs.

7. Which fish (marine) have symmetrical shapes?

Generally speaking, except for the flatfish, other fish are bilaterally symmetrical.

8. What are the eating habits of tadpoles and frogs?

Tadpoles eat a wide variety of foods, and are mainly omnivorous. At different growth stages, tadpoles have different food requirements depending on their species. Some tadpoles prefer animal feed, while some tadpole species prefer plant feed.

If tadpoles prefer animal food, they will be relatively ferocious and cruel by nature, and will engage in cannibalism when food is insufficient.

9. What are the eating habits of catfish and carp?

The feeding habits of these two fish are different. Catfish is a grazing fish species, while carp is an omnivorous fish species.

10. What are the differences between carnivorous dinosaurs and herbivorous dinosaurs?

Dinosaurs were divided into herbivorous and carnivorous types. Most dinosaurs ate plants. Scientists have discovered fossilized dinosaur teeth and jaws. The curved, thin, pointed teeth belong to carnivores like Tyrannosaurus Rex. Herbivorous dinosaurs had broad teeth for grinding food or teeth that could clamp food like Iguanodon, and Ceratopsians had beaks that could tear leaves apart.

Dinosaurs with sharp teeth like Tyrannosaurus Rex are carnivorous dinosaurs. Dinosaurs without fangs but with broad molars for chewing plants are herbivorous dinosaurs.