Life-history traits of the invasive mosquitofish (Gambusia affinis Baird and Girard, 1853) in the central Yangtze River, China
Life-history traits of the invasive mosquitofish (Gambusia affinis Baird and Girard, 1853) in the central Yangtze River, China
复制标题
中国长江中部入侵食蚊鱼 (Gambusia affinis Baird and Girard, 1853) 的生活史特征
DOI：
10.3391/bir.2018.7.3.13
复制
发表时间：
2018
影响因子：
1.4
通讯作者：
Yifeng Chen
中科院分区：
文献类型：
--
作者：
Yu Cheng;Wen Xiong;Juan Tao;Dekui He;Kang Chen;Yifeng Chen
西部食蚊鱼（Gambusia affinis Baird and Girard, 1853），被认为是100种最严重的入侵物种之一。它是世界上最稀有的物种，已被引入中国。然而，很少有关于生物学特性的信息。中国的食蚊鱼。为了更好地确定这种入侵物种对中国的影响，研究了西洋虎的生活史特征。2012年4月至2013年3月在长江中部对食蚊鱼进行了研究。蚊鱼标本962份。收集。雌虫和雄虫的体长分别为12 ~ 44 mm和12 ~ 29 mm，最大年龄。男性0+岁，女性1+岁。两性均呈异速生长(男性：负（b = 2.593）；女性阳性（b = 3.253）。女性在数量上占主导地位，总体男女性别比为1.65:1。具体而言，男女性别比在夏季（2:1）和秋季（3:1）较高，并没有偏离冬春季1:1的理论值。最小的怀孕雌虫体长为21毫米，产卵量在4 ~ 65个之间。与其他研究结果相比，西部的蚊鱼种群在中部。长江具有生长快、繁殖力低、寿命短的特点。这些特质可能会使人成功。食蚊鱼在长江中部的入侵。
The western mosquitofish (Gambusia affinis Baird and Girard, 1853), which is considered one of the 100 worst invasive.species in the world, has been introduced to China. However, there is little information on the biological characteristics of.mosquitofish in China. To better determine how this invasive species might impact China, the life-history traits of western.mosquitofish were studied in the central Yangtze River from April 2012 to March 2013. A total of 962 mosquitofish specimens.were collected. The size of females and males ranged from 12 to 44 mm and 12 to 29 mm, respectively, and the maximum ages.of males and females were 0+ years and 1+ years, respectively. Both sexes grew allometrically (males: negative (b = 2.593);.females positive (b = 3.253)). Females were numerically dominant with an overall female-to-male sex ratio of 1.65:1..Specifically, the female-to-male sex ratio was higher in summer (2:1) and autumn (3:1) and did not deviate from the.theoretical value of 1:1 in winter and spring. The smallest pregnant female had a total length of 21 mm, and fecundity ranged.from 4 to 65 eggs. Compared with the findings obtained in other studies, the western mosquitofish population in the central.Yangtze River is characterized by faster growth, lower fecundity and shorter life span. These traits might enable the successful.invasion of mosquitofish in the central Yangtze River.
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影响因子：
1.4
作者：
A. Hughes
通讯作者：
A. Hughes
影响因子：
3.5
作者：
I. Schlosser
通讯作者：
I. Schlosser
影响因子：
--
作者：
R. Patimar;M. Ghorbani;Ali Gol-Mohammadi;Hoda Azimi-Glugahi
通讯作者：
R. Patimar;M. Ghorbani;Ali Gol-Mohammadi;Hoda Azimi-Glugahi
DOI：
10.2307/3618952
发表时间：
1988-06
期刊：
The Mathematical Gazette
影响因子：
--
作者：
A. J. Willis
通讯作者：
A. J. Willis
影响因子：
2.4
作者：
L. Pen;I. Potter
通讯作者：
L. Pen;I. Potter