繁殖群体

测定分析鱼类生殖力、产卵期、繁殖群体的年龄结构及产卵类型。

The spawning times , absolute fecundities , age structures of breeding population , and spawning types of fish were also studied .

以所得RAPD数据分析为基础，对鳙鱼人工繁殖群体的遗传多样性进行了分析，对鳙鱼人工繁殖过程中的一些问题进行了讨论。

Based on RAPD data analysis , the genetic similarity of cultivated population of bighead carp and some questions on cultivation are discussed .

军曹鱼全人工繁殖群体遗传特征的SSR分析非胎生红树植物繁殖体特征与分带关系

A genetic analysis of cultured populations of cobia with microsatellite markers Relationship Between Diaspore Traits and Inter-tidal Zonation of Non-viviparous Mangrove Species

三代繁殖群体卵的受精率和孵化率差异显著（P0.05），子代鳄的受精率下降明显；

One way ANOVA indicated that the variance between fertilizing rate and the incubating rate of the 3 reproducing generations is significant ( P0.05 ), and the fertilizing rate of the filial generation drops dramatically .

茶树有性繁殖群体变异研究

Studies on Population Variation of Tea Plant Sex-reproduction

湖北恩施地区茶树有性繁殖群体变异研究

Study of Group Variation in Sexual Propagation of Tea Tree in Enshi of Hubei Province

繁殖群体中补充群体多于剩余群体。

The recruit population is of much than the surplus population in the spawning stock .

镜鲤两个繁殖群体的遗传结构和几种性状的基因型分析

Analysis of the genetic structure of two mirror common carp population and genotypes for some traits

长江中华鲟繁殖群体资源现状的初步研究

Present status of spawning stock of Chinese sturgeon , Acipenser sinensis , in the Yangtze River

结果表明：人工放流群体的生长特征与自然繁殖群体基本相同；

Results showed that the growth characteristics of the artificial release shrimps population was the same as the nature reproduction population .

葛洲坝产卵场中华鲟繁殖群体数量与繁殖规模估算及其变动趋势分析

Estimation on the Spawning Population and Spawning Sizes of Chinese sturgeon ( Acipenser sinensis ) and Trend Analysis of Their Change in Recent Years

本文研究了象山港中国对虾（包括人工放流群体和自然繁殖群体）的生长特征。

This paper reported the growth characteristics of Penaeus orientalis including artificial release and nature reproduction shrimps population which was collected along Xiangshan bay .

模拟分析了繁殖群体大小、繁殖偏倚和占群优势雄性数目对麋鹿的有效种群大小的影响。

We simulated the impacts of breeding herd size , reproductive skew and numbers of breeding stags on the inbreeding coefficient of P è re David 's deer .

结果表明同年不同河口样品的全长、体重和日龄结构存在某些差异，这些差异源于繁殖群体的遗传性。

Result indicated that structure of population of glass eel from various locality in the same year was difference in various degrees , these difference may be caused by genetically heterogenicity .

对三峡建坝后宜昌江段鲟鱼类繁殖群体状况作了简要介绍，并就长江鲟鱼类资源增殖与利用的途径提出了建议。

The state of the reproductive population of sturgeons in Yichang reach of Yangtze River was summarized , and some suggestions on the reproduction and utilization of sturgeons in Yangtze River were put foward .

再结合等位基因频率差异显著性测验以及遗传距离图的结果，表明种子老化影响子代遗传变异远小于更新过程中繁殖群体量、种子老化以及田间选择压力等因素影响的作用。

The allele frequency and dendrogram comparison results indicated that the effect of seed aging on offspring'change of genetic integrity was less than the synthesized effect of size of regeneration population , seed aging and selective stresses in the field .

结果表明，两个鳙鱼人工繁殖群体内个体间的遗传相似度分别为0.9755和0.9797，Shanonn表型多样性指数分别为5.541和4.954；

The results show that the genetic similarity between individuals in two populations are 0 . 9755 and 0 . 9797 on average respectively ; and the Shannon 's indexes are were 5 . 541 and 4 . 954 separately .

进化思想是目前模拟进化过程的三种主要研究途径之一，它主要强调个体的行为变化、强调父代和子代之间或繁殖群体之间的行为联系。

The idea of evolution is one of the three main research approaches in simulating evolution process at present . It mainly emphasizes on individual behavior diversification and the behavior relationship between sire generation and filial generation or between the propagative colonies .

繁殖群体主要由一、二龄组成，雌雄性比为1：1；精母细胞和卵母细胞都有分批成熟现象；

Spawning population consists of age 1 and 2 mainly , and sex ratio is 1 : 1 . According to asynchronous development of oocytes and spermatocytes or distribution of egg diameter , S. sinensis sinensis is regard as a definite batch spawner .

目前四倍体鲫鲤已连续繁殖了12代（F3-F（14）），形成了一个稳定的新的四倍体鱼繁殖群体。

Since F3 , the tetraploidy was maintained from one generation to another and to date FH allotetraploid hybrids were produced ( F : ! - FM ) and a stable and new allotetraploid fish population was formed .

由于人工繁殖的成功应用，改善了种苗供应不足的状况，也使很多地方引种后建立了独自的繁殖小群体。

The success of its artificial propagation improved the status of its fry in short supply and accelerated the foundation of many small breeding populations .