English Name:;- The Chinese paddle fish Polyodontidae, Order Acipenseriformes species 1 genus of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius), to a light body color, hence the name English Name:;- The Chinese paddle fish Polyodontidae, Order Acipenseriformes species 1 genus of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius), to a light body color, hence the name . aka elephant fish, fish, sword fish, the old name for the aka elephant fish, fish, sword fish, the old name for the .
shuttle shuttle . tuna long sword - like snout, the front end of the narrow, flat, flat, hypertrophy and base;kiss the ventral surface of the subject 2 of the bone plate body tuna long sword - like snout, the front end of the narrow, flat, flat, hypertrophy and base;kiss the ventral surface of the subject 2 of the bone plate body .
no large hard scales;only at the upper edge of the caudal fin has a row of spiny scales, shallow dorsal purplish grey, the belly and the fins as well as slightly pink white no large hard scales;only at the upper edge of the caudal fin has a row of spiny scales, shallow dorsal purplish grey, the belly and the fins as well as slightly pink white . distribution to flood in the Yellow Sea and the coast have discovered, in ancient times up to the Fenwei Basin distribution to flood in the Yellow Sea and the coast have discovered, in ancient times up to the Fenwei Basin .
semi - anadromous fish inhabit semi - anadromous fish inhabit . flood along the river even into large lakes flood along the river even into large lakes .
- mature age of 7 ~ 8 age, weighs 25 kilos (female) above; - mature age of 7 ~ 8 age, weighs 25 kilos (female) above;. males mature earlier in the spawning season from late March to April males mature earlier in the spawning season from late March to April .
eggs are grey - black, spherical eggs are grey - black, spherical . egg with a diameter of 2.1 mm, sinking up to 20 million eggs
. spawning grounds in the area of Yibin Yangtze River;sediment and rubble, 10 meters water depth, flow velocity is 3.49 m / s, 8 mg / l of dissolved oxygen, pH 8.0. 2, the transparency of 39 cm, at 18. 3 ~ 20. 0
) in Sichuan Province were one year old, of about 0. 1 m gained weight faster, which can weigh up to 500 kg gained weight faster, which can weigh up to 500 kg .
but generally is 100 kg feed mainly on fishes but generally is 100 kg feed mainly on fishes . .
Introduction
Chinese paddlefish are the large fish is listed as a rare animal protection as the existing assignment of only one of two undergraduate fish, paddlefish, North America, the Mississippi Valley Chinese paddlefish are the large fish is listed as a rare animal protection as the existing assignment of only one of two undergraduate fish, paddlefish, North America, the Mississippi Valley . undergraduate fish in fish origin, evolution and geographical distribution, on the other hand, there is important academic value undergraduate fish in fish origin, evolution and geographical distribution, on the other hand, there is important academic value .
Psephurus gladius () belonging to the Acipenseriformes; sturgeons, paddlefish, Psephurus gladius genus Psephurus gladius () belonging to the Acipenseriformes; sturgeons, paddlefish, Psephurus gladius genus . var. megarrhiza Tsen - fish, elephant fish, swordfish, column Bester, anglerfish,
said the old tuna English Name: Chinese said the old tuna English Name: Chinese . endangerment: endangerment:.
endangered China's first - grade State protected wildlife endangered China's first - grade State protected wildlife . IUCN (1996) CR (1997) CITES Appendix II IUCN (1996) CR (1997) CITES Appendix II .
long, spindle - shaped and slightly flattened front, middle thick, slightly at the rear side of the flat head long, spindle - shaped and slightly flattened front, middle thick, slightly at the rear side of the flat head . pole length, head length exceeds the length of the half, onto which a plum blossom for the rest of a kiss pole length, head length exceeds the length of the half, onto which a plum blossom for the rest of a kiss .
sword - shaped, particularly extended, the front end of the narrow but flat, broad base and a head of a kiss sword - shaped, particularly extended, the front end of the narrow but flat, broad base and a head of a kiss . hypertrophy of the ventral surface, and a stretchable hypertrophy of the ventral surface, and a stretchable .
ancient books that have "tuna port in the lower jaw, nose cartilage. It is also the author of the Chinese paddlefish (Psephurus gladius of ecological feature concise summarization of on the mandible has a tapering of the teeth;must kiss a pair of short, fine on the mandible has a tapering of the teeth;must kiss a pair of short, fine .
. eyes located on the ventral surface of the entire head is full of fine streak - like sensory nerve tissue eyes located on the ventral surface of the entire head is full of fine streak - like sensory nerve tissue .
gill opening is large and scaleless body gill opening is large and scaleless body . in the caudal fin upper lobe 8 having a prismatic plate scale, the rearward extended to the caudal fin upper lobe in the caudal fin upper lobe 8 having a prismatic plate scale, the rearward extended to the caudal fin upper lobe .
origin in the ventral fin, is comprised of the branch consisting of the caudal fin crooked shape origin in the ventral fin, is comprised of the branch consisting of the caudal fin crooked shape ., on the one is more developed, with the leading row of fulcra , on the one is more developed, with the leading row of fulcra .
short intestine, there were 7 - 8 short intestine, there were 7 - 8 . spiral valve head, body and caudal fin shape on the back blackish - grey, abdomen white spiral valve head, body and caudal fin shape on the back blackish - grey, abdomen white .
paddlefish are semi - anadromous fish inhabit paddlefish are semi - anadromous fish inhabit . flood routing for the lower - middle class, even also along the river enters the lake in large,large individual lives in the mainstream of the deepwater channel, a good swimmer, and often have been cruising the Yangtze River in a broad al in which;Juveniles are treated to a tributary, Harbor Drive, even in the estuary of brackish water to forage flood routing for the lower - middle class, even also along the river enters the lake in large,large individual lives in the mainstream of the deepwater channel, a good swimmer, and often have been cruising the Yangtze River in a broad al in which;Juveniles are treated to a tributary, Harbor Drive, even in the estuary of brackish water to forage .
beluga sturgeon as whether it is really necessary to sea in the fattening growth, it is not clear;However, the existing data analysis, It is not certain that it is a fish of the river to sea migration beluga sturgeon as whether it is really necessary to sea in the fattening growth, it is not clear;However, the existing data analysis, It is not certain that it is a fish of the river to sea migration . beluga is a large fierce fish, adult and juvenile fish - eating, a small amount of feed on shrimp, crabs and other animals. And this is a large species of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius
fish fish . first sexual maturity between the ages of 7 and 8, a size of around 2 meters, more than 25 kilograms in weight, according to renowned zoologist first sexual maturity between the ages of 7 and 8, a size of around 2 meters, more than 25 kilograms in weight, according to renowned zoologist .
Bingzhi, a professor at the fifty - odd years ago, Nanjing was captured in a 7 - meter - long heavy Tons of individuals, to date it remains the world's freshwater fish of the highest recorded body length Bingzhi, a professor at the fifty - odd years ago, Nanjing was captured in a 7 - meter - long heavy Tons of individuals, to date it remains the world's freshwater fish of the highest recorded body length . Sichuan fishermen also have "Lazi (Acipenser sinensis) and five tons of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius ()" Sichuan fishermen also have "Lazi (Acipenser sinensis) and five tons of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius ()".
beluga's argument that the reproductive season, is in the range of from about 3 - 4 months, at place of oviposition in Luzhou, Sichuan Province, the torrential stream with a flow rate of about 0. 49 m / s, with a depth of 10 meters, and bottom mostly sand and rocks and pebbles of all involved, with a greater concentration of spawning grounds in the vicinity of the river in anxian county in Yibin and Cypress Creek in the vicinity of the Jinshajiang River mature eggs are grey - black, egg, the egg of water development, juvenile fish in the Changjiang Estuary beluga Growing mature eggs are grey - black, egg, the egg of water development, juvenile fish in the Changjiang Estuary beluga Growing .
distribution of flood routing for the upstream and downstream, and also in estuaries and brackish water distribution of flood routing for the upstream and downstream, and also in estuaries and brackish water . survived past the Qiantang River in Zhejiang have found,is probably the bypassing of the Changjiang estuary into the annual production of around 25,000 survived past the Qiantang River in Zhejiang have found,is probably the bypassing of the Changjiang estuary into the annual production of around 25,000 .
. kilograms over the past decade, due to overfishing and other reasons, the decline in resources, is now on the endangered species of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius kilograms over the past decade, due to overfishing and other reasons, the decline in resources, is now on the endangered species of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius .
Pro. It tastes delicious and fat, and rich in fat and high protein content of muscle protein in 17. 18%, fat was 5. 64%, liver protein content was 8. 71%, fat 20%;ovary protein is 13. 47% and fat 15. 42%
muscles and eggs all contain the same determination can be made of 17 kinds of amino acids, amino acids of the same with the same Chinese sturgeon muscles and eggs all contain the same determination can be made of 17 kinds of amino acids, amino acids of the same with the same Chinese sturgeon . due to nutrient - rich, is always regarded as edible curiosa, Jiangsu, Shanghai around the shad, gun (sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius), Catfish (Acipenser sinensis) and listed as the four famous freshwater fish due to nutrient - rich, is always regarded as edible curiosa, Jiangsu, Shanghai around the shad, gun (sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius), Catfish (Acipenser sinensis) and listed as the four famous freshwater fish .
Furthermore, beluga sturgeon and medicinal value are also the same Furthermore, beluga sturgeon and medicinal value are also the same . Polyodontidae fish which appeared in the Cretaceous (100 million years ago) Polyodontidae fish which appeared in the Cretaceous (100 million years ago) .
alive today Polyodontidae possess only belonged to both of the two,Respectively distributed in Asia and North America on the Yangtze River, the Mississippi alive today Polyodontidae possess only belonged to both of the two,Respectively distributed in Asia and North America on the Yangtze River, the Mississippi . can mainly be attributed to the ancient geology on Quaternary is generated due to sudden environmental changes, make the comparison of the Polyodontidae fishes widely distributed in many places disappear, only two species in the above - described two basic living conditions of the river is not in the remaining beluga can mainly be attributed to the ancient geology on Quaternary is generated due to sudden environmental changes, make the comparison of the Polyodontidae fishes widely distributed in many places disappear, only two species in the above - described two basic living conditions of the river is not in the remaining beluga .
a surviving relict animals in scientific research which seems to be extremely valuable.in addition to the existing population quantity few To this end, the State Council environmental protection committee in 1983 and 1987 issue of "wild" in that context of the adoption of the endangered To this end, the State Council environmental protection committee in 1983 and 1987 issue of "wild" in that context of the adoption of the endangered .
. Although the current scientific research departments is embarking on a study of breeding, but has not been a lot of artificial breeding before, are also subject to a strict ban on hunting, juvenile, the juvenile sturgeons Jiang also advocated, in order to protect and save this endangered species 
Morphological Feature
beluga's body is long, a rhombus shape on the mandibular teeth are tapered beluga's body is long, a rhombus shape on the mandibular teeth are tapered . kiss long, sword - shaped, its length is a length behind the eyes of 1. 5 - 1. 8 times, the snout in front - to - back becomes gradually wider from the front end of the blunt tip
eyes small, fine shall pair, located on the ventral surface of eyes small, fine shall pair, located on the ventral surface of . kiss. The mouth was large, curved, flexible, and the head (the ventral
head on each side of the outer nostril 2 head on each side of the outer nostril 2 . Sai cover film developed nearly triangular, elongated rearward up to the middle of the pectoral fins, gill covers on the left and right sides of the film in the isthmus, in the form of an arc, the gill covers front dorsal blowhole Sai cover film developed nearly triangular, elongated rearward up to the middle of the pectoral fins, gill covers on the left and right sides of the film in the isthmus, in the form of an arc, the gill covers front dorsal blowhole .
sidings have complete body, heterocercal tail, a long upper lobe and lower lobe was shorter, leaves on the dorsal surface of the ratchet - like scales, the dorsal and caudal fins are dark grey, abdomen white,smooth surface without scales of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius sidings have complete body, heterocercal tail, a long upper lobe and lower lobe was shorter, leaves on the dorsal surface of the ratchet - like scales, the dorsal and caudal fins are dark grey, abdomen white,smooth surface without scales of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius . grew rapidly, especially for the first year grew rapidly, especially for the first year .
old fish fish that 61 - 64 2.4 cm and weighs 480 - 850 g September 1990 in Chongqing captured juvenile length 52. 71 - 5. 0 cm and weighs 440 g
11 950 - year fish reach a length of 244 cm and weighs 67. 5 kg 
Living Habits
Chinese paddlefish (Psephurus gladius is semi - anadromous fish inhabit Chinese paddlefish (Psephurus gladius is semi - anadromous fish inhabit . flood routing for the lower - middle class, but a few cases also enters into the riverine Large lakes, large individual lives in the deep water channel of the river, a good swimmer, and often have been cruising the Yangtze River in a broad al in which;Juveniles are treated to a tributary, Harbor Drive, even in the estuary of brackish water to forage flood routing for the lower - middle class, but a few cases also enters into the riverine Large lakes, large individual lives in the deep water channel of the river, a good swimmer, and often have been cruising the Yangtze River in a broad al in which;Juveniles are treated to a tributary, Harbor Drive, even in the estuary of brackish water to forage .
beluga sturgeon as whether it is really necessary to sea in the fattening growth, it is not clear;However, the existing data analysis, It is not certain that it is a fish of the river to sea migration beluga sturgeon as whether it is really necessary to sea in the fattening growth, it is not clear;However, the existing data analysis, It is not certain that it is a fish of the river to sea migration . beluga is a large fierce fish, adult and juvenile fish - eating, a small amount of feed on shrimp, crabs and other animals beluga is a large fierce fish, adult and juvenile fish - eating, a small amount of feed on shrimp, crabs and other animals .
paddlefish was mature between the ages of 7 and 8, a size of around 2 meters, more than 25 kilograms in weight, according to renowned zoologist paddlefish was mature between the ages of 7 and 8, a size of around 2 meters, more than 25 kilograms in weight, according to renowned zoologist . Bingzhi, a professor at the fifty - odd years ago, Nanjing was captured in a 7 - meter - long heavy Tons of individuals, to date it remains the world's freshwater fish of the highest recorded body length Bingzhi, a professor at the fifty - odd years ago, Nanjing was captured in a 7 - meter - long heavy Tons of individuals, to date it remains the world's freshwater fish of the highest recorded body length .
Sichuan fishermen also have "Lazi (Acipenser sinensis) and five tons of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius ()" Sichuan fishermen also have "Lazi (Acipenser sinensis) and five tons of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius ()". beluga's argument that the reproductive season, is in the range of from about 3 - 4 months, at place of oviposition in Luzhou, Sichuan Province, the torrential stream with a flow rate of about 0. 49 m / s, with a depth of 10 meters, and bottom mostly sand and rocks and pebbles of all involved, with a greater concentration of spawning grounds in the vicinity of the river in anxian county in Yibin and Cypress Creek in the vicinity of the Jinshajiang River
mature eggs are grey - black, egg, the egg of water development, juvenile fish in the Changjiang Estuary beluga Growing mature eggs are grey - black, egg, the egg of water development, juvenile fish in the Changjiang Estuary beluga Growing . distribution of flood routing for the upstream and downstream, and also in estuaries and brackish water distribution of flood routing for the upstream and downstream, and also in estuaries and brackish water .
survived past the Qiantang River in Zhejiang have found,is probably the bypassing of the Changjiang estuary into the annual production of around 25,000 survived past the Qiantang River in Zhejiang have found,is probably the bypassing of the Changjiang estuary into the annual production of around 25,000 . .
kilograms over the past decade, due to overfishing and other reasons, the decline in resources, is now on the endangered species of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius Pro kilograms over the past decade, due to overfishing and other reasons, the decline in resources, is now on the endangered species of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius Pro . Caspian and Black Sea, and Ural and the Volga River in Russia, retroactively, but Caspian and Black Sea, and Ural and the Volga River in Russia, retroactively, but .
on record was the largest species of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius 28 feet long, weighing 286 lbs on record was the largest species of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius 28 feet long, weighing 286 lbs . 1 ton or more of the fish also were seized, but obviously not for the 1991 fishing catch 1 ton or more of the fish also were seized, but obviously not for the 1991 fishing catch .
, , . Sweden team anglers came to Russia with their large drift had arranged 1 ~ 3 pounds of live bait,with 50 pounds of tension of the polyester thread is caught and thus the 250 - pound beluga Sweden team anglers came to Russia with their large drift had arranged 1 ~ 3 pounds of live bait,with 50 pounds of tension of the polyester thread is caught and thus the 250 - pound beluga .
reported the largest species of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius, one is in the US in the 19th century in the capture of the Columbia River, weighing 1800 pounds per linear inch;the other is in the Canadian province of British Columbia's decree on the river captured, also is a 1800 lb reported the largest species of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius, one is in the US in the 19th century in the capture of the Columbia River, weighing 1800 pounds per linear inch;the other is in the Canadian province of British Columbia's decree on the river captured, also is a 1800 lb . obtained accepted, state - of - the - record is 1,285 pounds, 12. 5 - foot - long sturgeon in 1951 in Oregon of Dai Cueva on Extension of Law
caught due to the construction of dams and overfishing, 'huge fish today no longer exists' caught due to the construction of dams and overfishing, 'huge fish today no longer exists' . of the Columbia River Fishing Act provides that the catch is less than 40 inches and greater than 72 - inch sturgeon must now released " of the Columbia River Fishing Act provides that the catch is less than 40 inches and greater than 72 - inch sturgeon must now released ".
," they catch and release "practices have become very popular, according to Oregon fish and wildlife agency,Chinese paddlefish (Psephurus gladius has exceeded the salmon on the Columbia River to become the most common fish ," they catch and release "practices have become very popular, according to Oregon fish and wildlife agency,Chinese paddlefish (Psephurus gladius has exceeded the salmon on the Columbia River to become the most common fish . in the bait after all kinds of sturgeon will jump out of the water repeatedly, and then madly dash, or stubbornly sunk for fear of being caught, with fixed or floating fishing anglers can catch them in the bait after all kinds of sturgeon will jump out of the water repeatedly, and then madly dash, or stubbornly sunk for fear of being caught, with fixed or floating fishing anglers can catch them .
Species Value
Chinese paddlefish (Psephurus gladius. It tastes delicious and fat, and rich in fat and high protein content of muscle protein in 17. 18%, fat was 5. 64%, liver protein content was 8. 71%, fat 20%;ovary protein is 13. 47% and fat 15. 42%
muscles and eggs all contain the same determination can be made of 17 kinds of amino acids, amino acids of the same with the same Chinese sturgeon muscles and eggs all contain the same determination can be made of 17 kinds of amino acids, amino acids of the same with the same Chinese sturgeon . due to nutrient - rich, is always regarded as edible curiosa, Jiangsu, Shanghai around the shad, gun (sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius), Catfish (Acipenser sinensis) and listed as the four famous freshwater fish due to nutrient - rich, is always regarded as edible curiosa, Jiangsu, Shanghai around the shad, gun (sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius), Catfish (Acipenser sinensis) and listed as the four famous freshwater fish .
Furthermore, beluga sturgeon and medicinal value are also the same Furthermore, beluga sturgeon and medicinal value are also the same .
Experimental Investigations Into Some Reproduction
Chinese paddlefish (Psephurus gladius in spring every year (March - April) in the upper reaches of the Yangtze River to spawn a generation of Chinese paddlefish (Psephurus gladius in spring every year (March - April) in the upper reaches of the Yangtze River to spawn a generation of . originally distributed to the Haihe River to Qiantang Jiang among many other rivers, and the Yellow Sea and Bohai Sea, the East China Sea and other coastal waters, is now only a distribution in China's Yangtze River, Jiangxi Jiujiang sector of Yangtze River and Poyang Lake distributed originally distributed to the Haihe River to Qiantang Jiang among many other rivers, and the Yellow Sea and Bohai Sea, the East China Sea and other coastal waters, is now only a distribution in China's Yangtze River, Jiangxi Jiujiang sector of Yangtze River and Poyang Lake distributed .
Yibin County, Sichuan Province, Bai in the town of about 500 meters across the river is the main natural spawning sturgeon Yibin County, Sichuan Province, Bai in the town of about 500 meters across the river is the main natural spawning sturgeon . the age of maturity of females is 7 instars, 5 instars; male the age of maturity of females is 7 instars, 5 instars; male .
1983 - 1986, in a breeding colony in the captured tail 13 female, age 7 - 15 years old, 179 - 281 cm body length, body weight 25 - 102 kilograms;tail 22 males, age 5 to age 10, 156 - 214 cm body length, body weight at 6 - 47. 5 kg of the ripening eggs are grey - black .
174 cm in length and weighs 31 kilograms and the female ovum - 174 cm in length and weighs 31 kilograms and the female ovum - . 200000 capsules 200000 capsules.
Ancient Species
Polyodon spathula fish which appeared in the Cretaceous (100 million years ago) Polyodon spathula fish which appeared in the Cretaceous (100 million years ago) . alive today Polyodontidae possess only belonged to both of the two, respectively distributed in Asia and North America on the Yangtze River, the Mississippi alive today Polyodontidae possess only belonged to both of the two, respectively distributed in Asia and North America on the Yangtze River, the Mississippi .
can mainly be attributed to the ancient geology on Quaternary is generated due to sudden environmental changes, make the comparison of the Polyodontidae fishes widely distributed in many places disappear, only two species in the above - described two basic living conditions of the river is not in the remaining beluga can mainly be attributed to the ancient geology on Quaternary is generated due to sudden environmental changes, make the comparison of the Polyodontidae fishes widely distributed in many places disappear, only two species in the above - described two basic living conditions of the river is not in the remaining beluga . this post for the rest of the Amphibia, studying science is very precious;in addition to the existing population quantity few this post for the rest of the Amphibia, studying science is very precious;in addition to the existing population quantity few .
To this end, the State Council environmental protection committee in 1983 and 1987 issue of "wild" in that context of the adoption of the endangered To this end, the State Council environmental protection committee in 1983 and 1987 issue of "wild" in that context of the adoption of the endangered Although the current scientific research departments and embarking on a study of breeding, but has not been a lot of artificial breeding before, are also subject to a strict ban on hunting, juvenile, the juvenile sturgeons Jiang also advocated, in order to protect and save this endangered species
left Liaoning Liu's original Chinese paddlefish (Psephurus gladius (LIUI). Production of Liaoxi - Heung Fan Erdao Village in Liangshan Chondrichthyes,belongs to the sturgeons, paddlefish genera body slightly flattened, triangular heads with large, sharp - long sword - shaped, its snout length. The mouth is large, retractable, with stubble and a pair of preoral
eyes small, naked body, the ossification of cartilage rarely, triangular dorsal fin and tail are eyes small, naked body, the ossification of cartilage rarely, triangular dorsal fin and tail are . of the pelvic fins and caudal fin of a positive type, the scales on the caudal fin has a prismatic shape, and / or the generally larger of the pelvic fins and caudal fin of a positive type, the scales on the caudal fin has a prismatic shape, and / or the generally larger .
forward gradually narrows,the front end of a shovel - like for sturgeon is about 1. 2 meters paddlefish life early Cretaceous (1. 22 years ago 122. 2 - 0 to 122 2Ma. 5 - 0. 3Ma,) of the inland lakes
fossil discovered and now the Beipiao of volcanic sedimentary intercalation fossil discovered and now the Beipiao of volcanic sedimentary intercalation . living specimens of Psephurus gladius (Chinese), also known as a fish, is an ancient sturgeons, belonging to the Acipenseriformes; sturgeons, paddlefish family, Polyodontidae only two fish,living along the upper reaches of the Yangtze river in China, belongs to China at the national level to protect animals living specimens of Psephurus gladius (Chinese), also known as a fish, is an ancient sturgeons, belonging to the Acipenseriformes; sturgeons, paddlefish family, Polyodontidae only two fish,living along the upper reaches of the Yangtze river in China, belongs to China at the national level to protect animals .
beluga long head length of 1 / 3, and a small length of about 1 / 2, the cloth of a Torx - shaped sensillum and trap beluga long head length of 1 / 3, and a small length of about 1 / 2, the cloth of a Torx - shaped sensillum and trap . to prolong the kiss, sword - shaped, its ventral surface with stubble and a pair of little eyes to prolong the kiss, sword - shaped, its ventral surface with stubble and a pair of little eyes .
. mouth large, hypogynous, arcuate, upper and lower jaw are denticulate mouth large, hypogynous, arcuate, upper and lower jaw are denticulate .
gill opening is large, the gill membrane edge tip with smooth slimy usually scaleless gill opening is large, the gill membrane edge tip with smooth slimy usually scaleless . .
inhabit the river bottom, sometimes in large lakes in the Yangtze paddlefish inhabit the river bottom, sometimes in large lakes in the Yangtze paddlefish . is only secondary to the sturgeon, ancient fish of large, long fronds can reach above. by ecological deterioration, paddlefish, distributinging area narrows gradually, resulting in a decrease in the number,an individual getting smaller. now endangered paddlefish has no sub - panda, If no effective measures to protect them. In a few years it may disappear forever 
Rescuing The Chinese Paddlefish (Psephurus Gladius
The last earthling to see rare fishes in the Yangtze River are paddlefish in 2003 The last earthling to see rare fishes in the Yangtze River are paddlefish in 2003 . in Yibin is by - catch of sturgeon for its tall, up to 3 meters long and weighs 160 kg in Yibin is by - catch of sturgeon for its tall, up to 3 meters long and weighs 160 kg .
thereafter, paddlefish did not appear on the human's field of vision due to environmental changes, paddlefish have no natural condition thereafter, paddlefish did not appear on the human's field of vision due to environmental changes, paddlefish have no natural condition . 1, on 12 December 2002, a fisherman in the Yangtze River in Nanjing section of Submerged found near a paddlefish, noon to 1: 45, this beluga specialists will salvage the rescue 1, on 12 December 2002, a fisherman in the Yangtze River in Nanjing section of Submerged found near a paddlefish, noon to 1: 45, this beluga specialists will salvage the rescue .
this beluga as off - white, 3.3 meters long and weighs about 130 kilograms of effluent after Psephurus gladius, fishery experts ripping fishing nets,began pulling Chinese paddlefish (Psephurus gladius Clean and stitch the wound Psephurus gladius, fishery experts ripping fishing nets,began pulling Chinese paddlefish (Psephurus gladius Clean and stitch the wound .
Chinese sturgeons in the yangtze river fisheries research institute of the Academy of Sciences to study the authoritative Wei says sturgeon is very precious, "aquatic giant panda", and is the world's endangered species of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius Chinese sturgeons in the yangtze river fisheries research institute of the Academy of Sciences to study the authoritative Wei says sturgeon is very precious, "aquatic giant panda", and is the world's endangered species of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius . discovery is China's 50 years since the discovery of the largest one in the Lower Reaches of the Yangtze River in the discovery is China's 50 years since the discovery of the largest one in the Lower Reaches of the Yangtze River in the .
According to introducing, this beluga seriously, not only are there According to introducing, this beluga seriously, not only are there . trauma due to internal injury in addition to the five hooks cause of injury, when the jaw is still a long deep scratches, if left untreated, would jeopardize the lives of the Chinese paddlefish (Psephurus gladius trauma due to internal injury in addition to the five hooks cause of injury, when the jaw is still a long deep scratches, if left untreated, would jeopardize the lives of the Chinese paddlefish (Psephurus gladius .
In addition, very severe internal injuries,Now judgment. One is in a large amount of ponding this beluga Can Revive unclear this beluga Can Revive unclear .
2, 27 Jan. 2003 in the afternoon, the experts to give meticulous treatment for three days and three nights of "aquatic giant panda" of wild sturgeon in the Yangtze River at Yibin in Sichuan back this beluga is the morning of January 24, a fisherman in Nanxi in the Yangtze River in Nanxi Fu Xikou bycatch, as female sturgeon, about 4 meters long and weighs 150 kilograms, age about 30 years old, in the belly of the expectant this beluga is the morning of January 24, a fisherman in Nanxi in the Yangtze River in Nanxi Fu Xikou bycatch, as female sturgeon, about 4 meters long and weighs 150 kilograms, age about 30 years old, in the belly of the expectant .
spawns its head and tail have obvious scars, white with some red skin plaque,ecchymoma spawns its head and tail have obvious scars, white with some red skin plaque,ecchymoma . beluga is like a wild animal protection, well - known genus of rare fish, known as" aquatic giant panda ", is unique in China in recent years virtually gone beluga is like a wild animal protection, well - known genus of rare fish, known as" aquatic giant panda ", is unique in China in recent years virtually gone .
. paddlefish, Psephurus gladius is back before the end of the Yangtze River, the Chinese Academy of Sciences Institute of aquatic experts in the new body is fitted with electronic trackers and, thereafter, the expert will have 24 hours to track this trend of Chinese paddlefish (Psephurus gladius paddlefish, Psephurus gladius is back before the end of the Yangtze River, the Chinese Academy of Sciences Institute of aquatic experts in the new body is fitted with electronic trackers and, thereafter, the expert will have 24 hours to track this trend of Chinese paddlefish (Psephurus gladius .
"Sturgeon" Commemorative Stamps
China's People's Republic of China on the People's Bank of China issued the "Sturgeon" stamps, respectively (at the national level to protect species of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius), Yangtze sturgeon (Acipenser aka), Chinese sturgeon (aka Wang fish, protection of animals at the national level), Bester China's People's Republic of China on the People's Bank of China issued the "Sturgeon" stamps, respectively (at the national level to protect species of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius), Yangtze sturgeon (Acipenser aka), Chinese sturgeon (aka Wang fish, protection of animals at the national level), Bester . respectively belonging to the Actinopterygii ganoid scales of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius and overall purpose of the Acipenseridae family, all of which are national key protected animals, the Yangtze River, the Heilongjiang and the Zhujiang Watershed Economy of high - value specialty fish, meat and caviar in the international market, known as black gold and was known as respectively belonging to the Actinopterygii ganoid scales of sturgeons and paddlefishes including Chinese paddlefish (Psephurus gladius and overall purpose of the Acipenseridae family, all of which are national key protected animals, the Yangtze River, the Heilongjiang and the Zhujiang Watershed Economy of high - value specialty fish, meat and caviar in the international market, known as black gold and was known as .
because of Acipenseridae and Huso sexually mature, the sturgeon needed 9 to 10 years, Huso huso required 11 ~ 18 years, based on the reproducing speed against the fishing speed,in danger of extinction in the 1980s, China gradually established because of Acipenseridae and Huso sexually mature, the sturgeon needed 9 to 10 years, Huso huso required 11 ~ 18 years, based on the reproducing speed against the fishing speed,in danger of extinction in the 1980s, China gradually established . enter some protection and research enter some protection and research .
