CATDOLL : CATDOLL: What are some freshwater herbivorous fish? What are some freshwater bottom-dwelling fish?

1. What are the freshwater herbivorous fish?

Common freshwater carnivorous fish include: black fish (mullet), yellow bone fish, catfish, eel, sturgeon, golden arowana, silver arowana, piranha, Chinese spiny loach, freshwater eel, Chinese fighting fish... etc., some of which are omnivorous fish.

2. What are the freshwater benthic fish?

There are many freshwater bottom fish, including crucian carp, carp, grass carp, bream, catfish, black carp, scavenger fish, etc. Many small miscellaneous fish are also bottom fish, including loach, old man fish, long-spined fish, etc., too many to list one by one.

Bottom fish generally have a higher oxygen tolerance, and some fish live in waters more than ten or even dozens of meters deep. It is said that such fish taste good and have delicious meat.

3. What are the freshwater fish?

The major freshwater fish species in my country include seven species: black carp, grass carp, silver carp, bighead carp, carp, crucian carp and bighead carp.

(1) Black carp, also known as snail black carp, black carp and black carp, is a bottom fish. It mainly lives in deep water sections of rivers and likes to move in the lower layer of water and areas with fast currents. It likes to eat mollusks such as yellow clams, lake clams and snails. Juvenile fish under 10 cm feed on cladocerans, rotifers and aquatic insects; individuals over 15 cm begin to eat young and thin-shelled clams and snails. It hibernates in deep pools in winter and swims to rapids in spring to lay eggs.

herring

(2) Grass carp, also known as grass carp, mixed fish and grass carp, is a typical herbivorous fish. It has thick meat, few bones and delicious taste. Every 100 grams of grass carp meat contains 17.9 grams of protein, 4.3 grams of fat and a variety of vitamins. Its meat is white and tender, with good toughness and high meat yield. Grass carp generally likes to live in the middle and lower layers of rivers, lakes and other water bodies and near-shore areas with abundant aquatic plants. It has the habit of migrating between rivers and lakes. Sexually mature individuals spawn in rivers and streams. After spawning, the parents and young fish enter tributaries and lakes connected to rivers. They usually feed and fatten in flooded shallow grasslands and flooded areas as well as in the water bodies attached to the main and tributary rivers. In winter, they hibernate in the deep water of the main stream or lake. Grass carp is lively and swims quickly. It often forages in groups and is voracious.

grass carp

(3) Silver carp is also called silver carp or silver carp. The body of silver carp is silvery white, with darker head and back, grayish white paired fins, and black edges on dorsal and caudal fins. It lives in the upper waters of large rivers or lakes. It is lively and good at jumping. It will flee in all directions if it is slightly disturbed. It feeds on plankton throughout its life. The larvae mainly feed on zooplankton such as rotifers, cladocerans and copepods, while the adults filter-feed on phytoplankton such as diatoms and green algae and also feed on zooplankton, etc., which can be used to reduce eutrophication of lakes and reservoirs.

Silver carp

(4) Bighead carp is also called silver carp, black carp, and bighead carp. The back of the bighead carp is gray-black with light yellow hues, the belly is silvery white, and there are many irregular black spots on the sides of the body. The fins are gray-white with many black spots. Bighead carp lives in the middle and upper layers of the water. It is gentle, moves slowly, and is not good at jumping. In natural waters, its number is less than that of silver carp. It usually lives in open water areas in lakes and harbors with flowing water, and hibernates in deep water areas in winter. It feeds on zooplankton throughout its life, and also eats some phytoplankton.

Bighead carp

(5) Carp is also called carp crook or carp. The back of the carp is dark black, the sides are dark yellow, and the abdomen is yellow-white. The lower lobe of the tail fin is orange-red, and the pectoral, pelvic and anal fins are yellow. It is omnivorous. Larvae feed on plankton such as rotifers and cladocerans. Individuals with a body length of more than 15 to 20 mm will switch to feeding on oligochaetes and aquatic insects. Adult fish like to eat mollusks such as snails, clams and cockles.

carp

(6) Crucian carp, also known as crucian carp seeds, crucian carp crooks, crucian carp shells, river crucian carp and crucian carp, is one of the important edible fish in my country. It is similar in shape to carp, with a small head, a relatively high body and no whiskers. It is a bottom-dwelling fish with strong adaptability. Crucian carp is an omnivorous fish that mainly feeds on plant-based food. During the fry stage, it feeds on plankton and benthic animals. Crucian carp generally matures in two winters and is a small to medium-sized fish. It grows slowly, generally weighing less than 250 grams, and the largest can reach about 1250 grams.

Crucian Carp

(7) The Chinese bream is also called Wuchang fish. It is tall and short, very flattened, and has a diamond-shaped body. There is a fleshy ridge on the abdomen from the base of the pectoral fin to the anus. The head is short and triangular. The mouth is small and has no whiskers. It likes to live in the middle and lower layers of open water areas in lakes with submerged plants. It is mild and herbivorous, so it is called "grass bream". Juveniles mainly feed on zooplankton, while adults mainly feed on aquatic plants. Chinese bream grows quickly. Juveniles of 100 to 135 mm can grow to about 0.5 kg after one year of breeding, and can reach a maximum weight of 3.5 to 4.0 kg. Chinese bream is considered to be an excellent breeding target because it grows quickly, has strong disease resistance, high survival rate, large size, and can grow and reproduce in still water.

Megalobrama

4. What are the farmed fishes in Rongcheng?

Rongcheng's sea is located at the intersection of cold and warm currents, and is recognized by the world as the most suitable latitude for the growth of marine life. Rongcheng's marine aquaculture started in the 1950s, grew in the 1970s, developed in the 1990s, and took off in the early 21st century. It has experienced five industrial waves of "fish, shrimp, shellfish, algae, and ginseng".

5. What are the tropical freshwater fish?

Two species: tropical marine fish and tropical freshwater fish.

The more common species of tropical marine ornamental fish include: Pomacentridae, Angelfish, Acanthopanax, Roughskin Fish, etc. Its famous species include Queen Angelfish, Empress Angelfish, Emperor Angelfish, Moonlight Butterfly, Moon Eyebrow Butterfly, Herringbone Butterfly, Seahorse, Red Clown Fish, Blue Devil, etc.

There are three series of famous tropical freshwater ornamental fish. The first is the lantern fish, such as red and green lantern fish, head and tail lantern fish, blue triangle fish, red lotus lantern fish, black lotus lantern fish, etc. The second is the angel fish series, such as red rainbow fish, blue rainbow fish, striped blue and green rainbow fish, black angel fish, sesame angel fish, mandarin duck angel fish, red-eyed diamond angel fish, etc. The third is the dragon fish series, such as silver dragon fish, red dragon fish, golden dragon fish, black dragon fish, etc., which are known as "living fossils".

1. Queen Fairy

Holacanthus ciliaris has an oval and flattened body with a distinct blue outline and several bright blue vertical stripes. Its body is densely covered with a grid of beaded yellow spots with blue edges. Its dark blue dorsal and anal fins are decorated with royal blue edges. Adults are bright yellow, green or golden brown, and their bodies are covered with scales in an orderly manner. The base color of this fish may vary due to light or hybridization of the same species.

Holacanthus ciliaris, also known as the Queen Angelfish, is widely distributed in the western and central Atlantic Ocean, living in areas with lush coral reefs. Holacanthus ciliaris is elegant and well-loved by people, and is an enduring marine ornamental fish.

2. Red Clown

Tomato Clownfish (Scientific name: Amphiprion frenatus, English name: Tomato Clownfish, Red Clown, Tomato Anemonefish), commonly known as Tomato (Hong Kong), belongs to the genus Anemonefish of the family Pomacentridae in the order Perciformes, and is a type of clownfish.

Adults are black, with red head, chest, abdomen, and fins. Behind the eyes there is a wide white band with a white edge, extending down to the throat. Sub-adults are uniformly orange-yellow, with a white vertical band behind the eyes. As they grow, their body color gradually turns red, and black spots appear behind the body and spread to the entire body.

3. Blue Devil

Blue Devil, distributed in the coral reef waters of the South China Sea, Taiwan and the Pacific Ocean, belongs to the family of Pomacentridae, with a body length of 5-6cm and an oval shape. Its body is azure blue, with a mysterious blue glow all over its body, a short black band between its eyes, and its fins are sky blue with black edges. It is mostly kept in aquariums with colorful corals and other invertebrates, and is a very popular tropical marine ornamental fish species.

4. Black Fairy

The black angelfish, also known as the black swallow, is a cichlid native to the Amazon River in South America. It is native to the Amazon River in South America and belongs to the cichlid family. It is 10-15CM long, disc-shaped and laterally flattened. Its body is as black as ink, and its body color is bright. It is one of the more famous varieties of angelfish. The water temperature for breeding is 22-26 degrees Celsius, and the water temperature for breeding is 27-28 degrees Celsius. It likes weakly acidic soft water. Parent fish mature in 6-8 months.

The male fish is larger, with a round, thick and slightly convex head, while the female fish has a straight head. The parents pair up on their own and have a fixed mate relationship. The female fish lays 100-200 eggs each time and lays eggs for the second time in about 0-12 days. The fry hatch in 48 hours and can swim and forage after 7 days.

5. Red Arowana

When the red dragon fish is young, its fins are light golden green, the edges of its scales are slightly pink, and its mouth is light red. When it is an adult, its body is golden yellow, with a slightly golden red scale frame on the edges of its scales, its mouth and gill cover have special dark red markings, and all its fins are dark red.

The colors of the fins and scales of various parts can be divided into orange, pink, dark red, and blood red. The whole body is glittering, showing a unique charm. The color of the red dragon usually takes one year at the fastest and ten years at the slowest to fully appear, usually 4 to 5 years. Under normal circumstances, the color of the dragon fish gradually changes from yellow to orange, then from orange to light red, and finally to dark red.

6. What are the freshwater predatory fish in Chongqing?

There are mainly shell fish, bighead carp, mandarin fish, black fish, catfish, etc.

7. What are some precious freshwater fishes?

In fact, there are many. Let's talk about a few famous ones. The Yangtze River shad is known as one of China's four famous fishes, along with the whitebait from Taihu Lake, the perch from Songjiang River, and the carp from the Yellow River. At the same time, the Fuchun River shad is known as one of my country's five famous tribute fishes, along with the Taishan red-scaled fish, the Qinghai Lake Huangyu, and the Bohai Sea oil fish and bowfish.

8. What kinds of fish are freshwater bottom fish?

There are many bottom fish, such as stingray, flower loach, three-striped rat, scavenger, red-tailed catfish, shovel fish, black-line flying fox, etc. Among them, the scavenger is the best choice for bottom fish because it can clean the dirt on the bottom of the water. However, this kind of fish is not good-looking. You can also choose some more beautiful bottom fish, such as stingray, red-tailed catfish, etc. Although they do not have many functions, they are very beautiful.

9. What are the freshwater farmed shellfish?

China's four traditional farmed shellfish include oysters, razor clams, cockles and mantis shrimp.

1. Oyster: Oysters and their close relatives are all marine shells. Oysters are suitable for cultivation in subtropical and tropical coastal areas. They are widely distributed in my country, from the Yalu River in the north to Hainan Island in the south. Oysters can be produced along the coast. Oysters are soft-bodied, parasitic animals with shells. Oysters produced at the junction of salt and fresh water are particularly plump. Oysters are mollusk animals with two shells, one small and flat, and the other large and convex. The surface of the shell is uneven. The meat is edible and can also be used to make oyster sauce. The meat, shell, and oil can all be used as medicine. They are also called oysters or sea oysters.

2. Sinonovacula constricta: Sinonovacula constricta generally refers to razor clams, which are the general name for clams in the order Tetrapodidae family, class Bivalviae, and are also known as razor clam king, holy son, bamboo locust, and dragonfly. The shell is long, nearly columnar or oval, and the two shells are equal. China is rich in razor clams, which are distributed along the coasts of the north and south. Razor clam meat can be eaten fresh or processed into dried clams, razor clam oil, etc. China has a long history of breeding, with the largest production in Fujian and Zhejiang, and artificial breeding.

3. Clams: They are the giant clams, mud clams, hairy clams, etc. of the family Corydalis. Hairy clams are economic marine shellfish. They are distributed along the coasts of Japan, North Korea, and China in the western Pacific Ocean. In China, they are distributed from the Yalu River in the north to Guangxi in the south. The resources are particularly rich in shallow waters such as Laizhou Bay, Bohai Bay, Liaodong Bay, and Haizhou Bay. They are edible shellfish with a high content of vitamin B12.

Kuiguan: A large clam with a shell up to 8 cm high, 9 cm long and 8 cm wide. The shell is solid and thick, obliquely oval and extremely inflated. The left and right shells are nearly equal. The dorsal margin is straight, with obtuse angles on both sides, the front and ventral margins are rounded, and the rear end is extended. There are 42 to 48 radial ribs on the shell surface, with 43 being the most common. The radial ribs are relatively flat, without obvious tubercles or protrusions. The concentric growth ring veins are slightly scaly on the ventral margin. The shell surface is white, covered with brown velvety shell skin, and some rib grooves are dark brown. The inner surface of the shell is grayish white, and its shell edge is hairy and has teeth on the edge.

The scientific name of blood clam is "mud clam". Hainanese people call it blood clam, Cantonese people call it "cockle", and people in Chaoshan area are used to calling it "clam". Clam belongs to the "branchial" class of molluscs. Its shell is heart-shaped, with thick and raised shells, the same shape on the left and right, and ridges on the surface, like the ridges of a tile roof, about thirty or forty, all scattered from the shell mouth.

Hairy clam: The adult shell is 4-5 cm long, with an expanded oval shell surface, the two shells are unequal, the shell top is protruding and curled inward and biased to the front; the shell surface has 30-44 radiating ribs, and small square nodules appear on the ribs; the hinge is straight and has about 50 teeth; the shell surface is white and covered with brown velvety epidermis.

4. Clams: Clams, animal kingdom, belong to the family Curculidae, and have medicinal value. They live near estuaries and shallow muddy beaches in intertidal zones. Clams are a general term for the genus Curculidae of the order Euphyllobranchia of the class Bivalvia. Two species, the Philippine clam and the variegated clam, have been found in the coastal waters of China. They have similar ecological habits, with only slight differences in external morphological characteristics and distribution areas.

Additional information:

1. The growth process of shellfish under artificial control. Shellfish are generally herbivorous, mainly feeding on algae and organic debris, and have a rich food base. The nutrient salt content in the inner bay of the estuary is high, and a large number of phytoplankton can grow. The river runoff and the injected urban sewage often carry a large amount of organic matter, which becomes a rich food source for shellfish, making it an ideal place for shellfish farming.

2. Shallow sea shellfish farming does not require feeding, and the sea surface is vast; tidal flat farming generally does not require the establishment of aquaculture sites, and the seedlings can be harvested 1 to 2 years after release. The cost is low and the income is high. Therefore, shellfish farming has become an important part of the aquaculture industry. The major countries in the world that farm shellfish include the United States, France, Britain, Japan and China. There are nearly 100 species of farmed shellfish, mainly oysters, mussels, scallops, razor clams, mud clams, clams, abalone, etc.; there is also freshwater mussel farming.

3. After the 1970s, some industrialized countries, in the case of serious pollution in coastal waters or lack of shallow sea beaches, used artificial ponds on land to try to culture shellfish, relying on feeding and circulating filtration water systems to cultivate oysters, so that shellfish farming has developed to a fully artificial stage. In addition, shellfish and algae culture can not only fully and effectively utilize the site and equipment, but also produce mutually beneficial ecological benefits. For example, China's mussels or scallops and kelp culture, pleated oysters and laver culture, etc., have achieved the purpose of increasing production. Malaysia's implementation of the mixed culture of shrimp and mud clams has also achieved good results.

10. What are the freshwater fish in Ningbo?

Common freshwater fish species include: 1. Black carp: Black carp is also called snail green. It is mainly distributed in the plains south of the Yangtze River in my country. It is an important fishery resource and aquaculture object. It grows quickly and tastes delicious. It is deeply loved by the Chinese people. 2. Grass carp: Grass carp is called sea carp in southern China and grass root in the north. It mainly inhabits rivers and lakes in plains and is a typical herbivorous fish. 3. Carp: Carp is also called carp and carp crooked. It is native to Asia. It is one of the freshwater fish with the most varieties, the widest distribution and the longest breeding history.

4. Silverfish: Silverfish is a general term for various translucent fish of the genus Silverfish in the family Silverfish. It is mainly distributed in the saltwater and freshwater of East Asia. In China, silverfish is also called noodle fish and firecracker fish. It is a rare delicacy. Silverfish itself is rich in nutrients and is the first choice for people with weak bodies. However, due to its carnivorous diet, it can easily damage the ecosystem if there are few natural enemies.

5. Crucian carp: Crucian carp, also known as crucian carp seeds and native crucian carp, is mainly distributed in Eurasia. It is a common freshwater fish with a varied diet, mainly feeding on aquatic plants and plankton. Because its meat is rich in trace elements and minerals, it is inexpensive and good value for money, so it is a delicacy on the table. It has strong adaptability and has been introduced to all parts of the world.

6. Silver carp and bighead carp: It should be emphasized that silver carp and bighead carp are two kinds of fish, namely silver carp and bighead carp, which are also called silver carp and bighead carp. Both of them belong to the four major carps, and they are discussed together because of their similar feeding habits. 7. Mullet: Mullet is also widely distributed. It belongs to the middle and lower layer fish, likes warm water, and mostly feeds on algae, debris, and residues.