保安湖麦穗鱼种群生物学Ⅳ.种群动态

张堂林; 崔奕波; 方榕乐; 谢松光; 李钟杰

保安湖麦穗鱼种群生物学Ⅳ.种群动态

中国科学院水生生物研究所, 武汉 430072

基金项目:

淡水生态与生物技术国家重点实验室基金项目(9604E4)

国家自然科学基金项目(39670575)

国家“九五”科技攻关项目(96-008-02-03)

中国科学院“九五”重大课题(KZ951-A1-102,KZ951-B1-104)

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出版历程
- 收稿日期: 1998-04-27
- 修回日期: 2000-03-02
- 发布日期: 2000-09-24

POPULATION BIOLOGY OF TOPMOUTH GUDGEON (PSEUDORASBORA PARVA) IN THE BAO'AN LAKE Ⅳ. POPULATION DYNAMICS

Institute of Hydrobiology, The Chinese Academy of Sciences, Wuhan 430072

摘要

摘要: 1995年10月至1996年11月运用标志回捕法对保安湖1#试验围拦中麦穗鱼的种群数量作了11次估算,并对种群的动态特征进行了分析。周年的种群数量变动于0.40-2.45ind·m-2,在5月份最高。不同世代的强度存在较大的差异,1996年世代最强,1996年11月为21,631ind,与同期的1995世代(14,431ind)相比增加了49.9%,死亡率在夏季较高。1995世代周年死亡率为71.7%,1996年11月的数量为4,084ind,与生活史中同期的1994世代(1,515ind)相比,增加了1.7倍。1994世代在1996年繁殖后期的死亡率急剧增加,在产卵季节过后全部死亡。种群活动水平除了与水温有关外,在春季可能主要受繁殖活动的影响。1996年的种群繁殖力为4.05×106粒,其中0+龄的贡献为85.7%.
- 麦穗鱼 /
- 种群动态 /
- 死亡率 /
- 保安湖
Abstract: The paper dealt with the population dynamics for P.parvain the 1# experimental enclosure (3.33hm2) of the Bao'an Lake. The single mark-recapture method was used to estimate the population size of the fish sampled by the trapnets (namely net weirs). The population number ranged from 13,462—81,725ind(0.40—2.45ind·m-2)during the period of October 1995 to November 1996. A large variation in year class strength was apparent. The 1996 year class was particularly strong; an extrapolated 70,089 ind of this year class was present in May, and this figure decreased to 21,631ind in November compared with 14,431ind of the previous 1995 year class at the same stage in the life history. Mean monthly instantaneous mortality rate of 1996 year class was higher in summer, and the mortality of 1994 year class sharply increased in late May, and the remaining fish of this year class died after the spawning season. Annual mortality for 1995 year class was 71.7%, and monthly instantaneous mortality rate increased during summer. The population locomotor activity level was commonly influenced by water temperature,but it may be mainly affected by spawning behavior in spring(March to May). in spring. Population fecundity of P. parva in the 1# experimental enclosure in 1996 was 4.05×106 eggs, of which 0+ age group (1995 year class) contributed 85.7%.
- Pseudorasbora parva /
- Population dynamics /
- Mortality rate /
- Bao'an Lake

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参考文献(18)

[1]	张堂林、方榕乐、崔奕波.渔业发展阶段不同的五个水体鱼类多样性的比较[J].水生生物学报,1996,20 (Suppl.)：192-199
[2]	殷正兆、肖俊彦、刘运桐,等.泛水湖泊-沉湖幼鳜适口饵料鱼现存量的调查研究[J].湖北渔业,1990,(3-4)：86-88
[3]	谢松光、崔奕波、方榕乐,等.扁担塘小型鱼类的丰度和分布[J].水生生物学报,1996,20(Suppl.)：178-174
[4]	张堂林、崔奕波、方榕乐,等.保安湖麦穗鱼种群生物学I.年龄与生长[J].水生生物学报,1998,22(Suppl.)：139-146
[5]	Dunn A, Coker C M.Notes on marking fish with biological stains [J].Copeia, 1951, 1:28-31
[6]	Deacon J E.A staining method for marking large numbers of small fish [J].Progve Fish-Cult.1961, 23(1):41-42
[7]	Nielson L A.Methods of marking fish and shellfish [M].American Fisheries Society Special Publications 23, 1992
[8]	Robson D S, Regier H A.Estimation of population number and mortality rates [A].In: Ricker W.E.(Ed.)Methods for assessment of fish production in fresh waters [M].IBP Handbook No.3, Oxford: Blackwell Science Publication, 1971, 131-165
[9]	Ricker W E.Computation and interpretation of biological statistics of fish population [J].Bull.Fish Res.Bd.Can., 1975, 191, 1-382
[10]	Ricker W E.Methods for assessment of fish production in fresh waters [M].IBP Handbook No.3, Oxford:Blackwell Science Publication, 1971, 1-348
[11]	Staples D J.Production biology of the upland bully Philypnodon breviceps Stokell in a small New Zealand Lake II.Population dynamics [J].J.Fish Biol., 1975, 7:25-45
[12]	Stott B.Some facters affecting the catching power of unbaited traps [J].J.Fish Biol., 1970, 2:15-22.
[13]	张堂林、崔奕波、方榕乐,等.保安湖麦穗鱼种群生物学II.繁殖力[J].水生生物学报,1998,22(Suppl.)：147-154
[14]	Mathews C P.Contribution of young fish to total production of fish in the River Thames near Reading [J].J.Fish Biol., 1971, 3:157-180
[15]	Penczak T and Molinski M.Fish production in the Oued Sebaou, a seasonal river in North Algeria [J].J.Fish Biol., 1984, 25:723-732
[16]	Penczak T.Fish production in the Warta River Polland: a preimpoundment study [J].Hydrobiol., 1992, 237:117-129
[17]	Penczak T.Fish production in the Warta River, Polland: a postimpoundment study [J].Hydrobiol., 1992, 242:87-93
[18]	宋天祥、马骏.华鳈人工繁殖和早期发育的研究[J].湖泊科学,1996,8(3)：260-267