| 3个品系黄鳝的繁殖力比较研究 |
| Comparative Study on Fecundity of Different Strains of Monopterus albus |
| 投稿时间：2008-05-08 |
| DOI： |
| 中文关键词:黄鳝 繁殖力 成熟系数 |
| 英文关键词:Monoplerus albus Strain Fecundity |
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| 中文摘要: |
| 对黄斑鳝、青黄斑鳝、青斑鳝等3个品系的黄鳝进行繁殖力的比较研究。结果表明：体长192．0～567．0mm、体重23．2—491．5g的黄斑鳝、青黄斑鳝和青斑鳝的个体绝对繁殖力（怀卵量）分别为1072．7、957．7、834．1粒，相对繁殖力FL（绝对繁殖力／体长）分别为3．33、2．93、2．60粒／mm，相对繁殖力‰（绝对繁殖力／体重）分别为14．46、13．04、11．32粒／g。在黄鳝繁殖前1月内，黄斑鳝成熟系数超过15．0％的个体约占50％，而青斑鳝中约占35％，青黄斑鳝中不到12％。从绝对繁殖力、相对繁殖力以及成熟系数来看，黄斑鳝的繁殖力最强，青黄斑鳝次之，青斑鳝最弱。 |
| 英文摘要: |
| The fecundity of ricefield ell, Monopterus albus, was investigated and compared among 3 strains, deepyellow strain （dark-yellow colored with fulvous maculae） , buff strain （yellowish colored with close-grained maculae） and caesious strain （steel grey colored with close-grained maeulae）. 435 female eel, with body-length ranging from 192.0 mm to 567.0 mm and body-weight ranging from 23.2 g to 491.5 g, were collected. Among the specimens, 175 individuals are from deep-yellow strain, 133 individuals from buff strain and 127 from caesious strain. The average absolute fecundity was 1 072.7, 957.7, 834.1 eggs/ind for deep-yellow eel, buff eel and caesious eel, respectively. The relative fecundity FL （the ratio of absolute fecundity to body-length） was 3.33, 2.93, 2.60 eggs/em BL for 3 strains respectively and Fw（the ratio of absolute fecundity to body-weight） was 14.46, 13.04, 11.32 eggs/g BW, respectively. About one month before spawning, the proportion of female individuals with GSI higher than 15% , was over 50% in deep-yellow strain, about 35% in buff strain and less than 12% in eaesious strain. From the above data, it can be concluded that, the fecundity of deep-yellow strain is the highest, buff strain is in the mediate, and caesious strain is the lowest. |
| 杨代勤,陈芳,阮国良,李唐明.2009.3个品系黄鳝的繁殖力比较研究[J].水生态学杂志,30(4):133-135. |
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