| 太湖河川沙塘鳢的生物学研究 |
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| 引用本文： | 孙帼英.太湖河川沙塘鳢的生物学研究[J].水产学报,1996,20(3):193-202. |
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| 作者姓名： | 孙帼英 |
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| 作者单位： | 华东师范大学，上海华新生物高技术有限公司工作 |
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| 摘 要： | 研究了河川沙塘鳢的年轮特征、生长特性、繁殖和摄食习性。观察比较了耳石、鳞片、脊椎骨和胸鳍支鳍骨的年轮特征，选取耳石作为鉴定年龄的依据。渔获物有０～Ⅳ龄五个年龄组，其中Ⅰ和Ⅱ龄组占渔获量的８５％，Ⅳ龄组仅为１．０２％。体长与耳石半径呈直线相关。体长与体重（Ｗ）和纯体重（Ｗ′）均呈指数函数增长关系，Ｗ＝２．２４１６×１０－２Ｌ３．０８６７；Ｗ′＝２．４９８×１０－２Ｌ２．９７４７。卵巢发育分Ⅵ期及重复发育的Ⅳ′和Ⅴ′期，属分批非同步型产卵鱼类，产卵时间为３～６月，盛产期为４～５月，繁殖期间至少产两次卵。该鱼主要以无经济价值的小鱼和虾为食
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| 关 键 词： | 河川沙塘鳢 生物学 太湖 |
| 收稿时间： | 2014/5/11 0:00:00 |
| 修稿时间： | 2014/5/11 0:00:00 |
STUDIES ON THE BIOLOGY OF ODONTOBUTIS POTAMOPHILA IN TAIHU LAK |
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| Sun Guoying.STUDIES ON THE BIOLOGY OF ODONTOBUTIS POTAMOPHILA IN TAIHU LAK[J].Journal of Fisheries of China,1996,20(3):193-202. |
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| Authors: | Sun Guoying |
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| Affiliation: | East China Normal Uniersity,Shanghai 200062 |
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| Abstract: | A detailed resear ch is reported in this pa per on the biolo gy of age, gr ow th,
feeding habit, r epr oduct ion o f Odontobutis potamphila ( G..nther ) . The oto lith is the best
indicator in ag e de terminat ion, w ith ve rtebra and scale as reference. The pe cto ral r adial
bo ne is not re liable in age determinat ion. Of all the aquat ic ca tches the age .. and ..
co ntr ibuted 85% o f the to ta l number in f iv e.. ye ar gro ups f rom 0 to ... The radius o f
oto lith a nd body length are in a signif icant line ar corr elat ion, w hich ca n be described by the
fol low ing equat ion: L = 5. 313 3R - 0. 069 03. The relat ionship between bo dy length and
bo dy w eight (W) and net w eig ht (W..) ca n be described by the fo llow ing equat ion: .. W= 0.
022 416L3. 086 7; W..= 0. 024 98L2. 974 7. The f ish mainly feeds on juv enile f ish and shrimps,
but on less amo unt o f mo lluscs and insect s. The co urse of o varia n maturat io n can be
div ided into six sta ges and .. ~ .. .. o r .. stage. The f ish releases two batches at least in a
breeding season. The breeding se ason is betw een March and June. The nest preferences are
w idely given to many kinds o f substances, such a s gr ass ro o t, tit le, some and other
materia ls. The egg mass can be fo und on the top o r side of the nest . The indiv idual
abso lute f ecundity ranges f rom 2 645~ 7 708 eg gs and individua l re lat ive ranges f rom 56~
163 eggs. |
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| Keywords: | Odontobutis potamophila Biology Taihu Lake |
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