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Inferior east salmon

来源: 作者:Stand originally 时间:2008-12-28 Tag: 点击:

Inferior east salmon

Yadongwa fish (Salmo Trutta Morpha Farlo L) :

Local name nods a fish for the flower.

Obtain the sample in all 12 end. Collect from inferior east.

Feature: Dorsal fin Iii8- - 9, anal fin Ii- - Iii7, pectoral fin Ii9- - 11, ventral fin Ii7. Sidetrack scale 105- - 120. The first branchial bend is branchial make number smooth with a rake for 17- - 19. Operculum 10- - 12. Pylorus blind bursa makes an appointment with 36.

Full-length 172- - 258 millimeter, average 209. 7 millimeter. Body length 149 - 199 millimeter, average 177. 5 millimeter. Body length, side is flat, shuttle form. The head is lesser, side is flat. The kiss is short and pure. The mouth is big, before. The mouth is cracked tilt. Plow bone protuberant and longer. Bone of jaw bone, hyoid Ji Li all has petty and keen tooth. Jaw bone and the tooth that plow bone are arranged submit strip form. Jaw bone tine is one-way, two side make an appointment with 20. Double travel of pear bone tine, about 13. Bone of the upper jaw develops, backward elongate exceeds eye tailing edge a bit. The small hole is large, be located in head side a bit ahead. Branchial hole is large, the holiday is branchial develop, branchial film and isthmus disconnect. Branchial make slightness smooth with a rake, arrange relatively stream. End handle is dumpy. Like the scales of a fish is small; Dorsal fin, tail fin reachs pectoral fin to wait base ministry all by with easy desquamation scale. On operculum bone also Fu is easy desquamation scale. Lateral line is complete, almost straight, be located in body side mid. Come from line arm fim Jibuyao 17 (do not include sidetrack like the scales of a fish) . Anus approachs anal fin starting point. Dorsal fin slim and fragile, without hard thorn; Its tailing edge slightly flat; Its start is located in body center a bit ahead. Fat fim is small, underdeveloped, but tailing edge but free activity; Its are long approximate eye span, its Jibuyao and anal fin base extreme is opposite. Pectoral fin extreme slightly blunt, its are long occupy pectoral fin radical to come 51 of span of ventral fin radical. 5- - 56. 8 % . Ventral fin extreme summary circle, its are long occupy ventral fin radical to come of span of anal fin start 62 - 74 % ; Its start and dorsal fin the 4th- - 6 branch fim opposite. Anal fin is short, delay after do not amount to ministry of tail fin radical. Tail fin is wide (friend also calls wide end river child) , tailing edge caves upcountry, show arc slightly, xie Mo falls to carry summary circle on. Style quality: When the life, body has firebug light, body back is green Brown, body side is jumped over to bottom more weak, abdomen a few for white. Head and piscine body the reverse side and dorsal fin, pectoral fin all has irregular black spot; Side and dorsal fin, tail fin has green, red and black spot; These stain distributing irregularly to fluctuate at sidetrack, but green spot is less under sidetrack. Because this fish color is very bright-coloured beautiful, politics place says for " the fish that spend a dot " . Formalin dip makes sign system: This fish produces water not as good as half hours, body look is fresh rate drops significantly namely. Black spot is outstanding after 3 days two; After a month, firebug light takes off a leg, style quality uncovers gray, green stain disappears, contain the gules stain that surrounds in vain to fluctuate in line only visible. Zoology: It is with aquatic insect and carapace animal feed. Enteron is long 1 what be body length. 1 times. The life is between the hill of river plain reach, flow is rapid, the bottom pledges the whirl water that is stone more is in. Economic meaning: Piscine body is puffy, fattiness, the flesh is thick, flavour is delicious, reason place masses most be addicted to has this fish. But individual not quite, the amount is little. Distributing: River redfish is in the world to go up the region of chill of the Northern Hemisphere that distributinging basically is Europe, picture Ireland, Icelandic and the Zhu He of infuse Finland bay flows, all have river redfish live. Discuss: The research that the ecology of river redfish is in abroad is more, still need research in our country. This fish is in of Tibet distributing to see Yuyadong only (eminent Mu river) , in inferior east with north did not capture in the eminent Mu river beyond 20 more than kilometer.

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