It has witnessed tai po progressing from a small market town serving farmers of the lam tsuen valley and where fisherman gathered after their day s catch from the waters of tolo harbour , to today s bustling new town . today , island house still stands well preserved and tucked quietly behind the tall trees on top of yuen chau tsai island , looking down on the bustling activities of tai po 元洲仔见证这个从前只为林村农民提供日常所需的小墟市，在吐露港捕鱼的渔民辛劳一天后的聚脚地，逐步蜕变成为今天位于车水马的吐露港公路旁，一个人潮如鲫，熙来攘往的新市镇。
The results showed that the electrophoretogram patterns of isozymes , serum and muscle protein of bumper crucian carp were the same as those of its female parent and significantly different from its male parent . it is speculated that the function of heterogeneous sperm was only in dna level and not behave on the isozyme expression of grown progeny 结果发现：异源子代的血清、肌肉蛋白和同工酶的电泳图谱与母本彭泽鲫相同而与父本海鲤显著不同，推测异源精子的作用可能是在dna水平上对后代产生影响，这种影响没有表现在成体同工酶的表达上。
This paper summarized the main endpoints and special sensitive indices of fish in the study of endocrine disruption , and introduced the main biological characteristics of several fish species such as chinese rare minnow , zebrafish , medaka , guppy , swordtail fish and fathead minnow , and their use in screening , detecting and assessment for endocrine disruptors 本文主要综述了利用鱼类进行内分泌干扰研究的主要测试终点和敏感效应指标；重点介绍了稀有鲍鲫、斑马鱼、日本青? 、孔雀鱼、剑尾鱼、黑头软口鲦等鱼类的主要生物学特性，以及利用它们进行内分泌干扰物的筛选与测试方面的研究成果。
In nature conditions , without the injection of the extraneous hormone , the females and males of f _ 9 - f _ 12 could mate each other to produce new next generation of tetraploids . with the stable genetic tetraploidy and the fertility in the nature environments , this allotetraploid population possessed the key factors to form a new species with 200 chromosomes F _ 9 ? f _ ( 12 )染色体数目的稳定性和正常的性腺结构以及自然条件下的生殖传代行为，说明该异源四倍体鲫鲤已成为一个染色体数目为4n = 200 、遗传性状稳定的新型四倍体鱼群体，具备形成一个新的种群所需的关键因素。
After nearly one hundred years , high - rise commercial and residential buildings stretch along the road and the section between jordan and tsim sha tsui has become a prosperous shopping area , adorned with lights from a myriad of shops and hotels and crowded with throngs of tourists at night 经过近一百年的发展，现在街道两旁商业和住宅楼宇林立；佐敦至尖沙咀一段更有多个著名商场及酒店，因此逐渐发展成为繁忙的购物区。入夜后的弥敦道游人如鲫，两旁闪烁着各式各样的霓虹招牌。
The main differences in sod exist in two stages - 6 - from darkly - pigmented eye to hatching , which showed two more bands ( sodl " and sod2 " ) in the isozyme pattern of embryo activated by heterogeneous sperm than that activated by homogenous sperm . meanwhile , the other two isozymes ( est and me ) detected in this paper did not show apparent differences between the embryo activated by homogenous sperm and that activated by heterogeneous sperm 对异精激发彭泽鲫雌核发育子代及其母本彭泽鲫和父本海鲤的血清、肌肉蛋白以及心、肝、肾、脑、眼等组织的酯酶( est ) 、苹果酸脱氢酶( mdh ) 、苹果酸酶( me ) 、超氧化物歧化酶( sod )和乳酸脱氢酶( ldh )电泳图谱的比较研究。
2 . the gynogenesis of allotetraploid hybrids without the treatment to double the chromosome number , the diploid eggs produced by the females of tetraploid hybrids of red crucian carpx common carp were able to develop to living diploid fish after subjecting to activation of the uv - irradiated sperm 人工诱导异源四倍体鲫鲤的雌核发育异源四倍体鲫鲤能产生二倍体卵子，用uv处理镜鲤的精子，不进行染色体的加倍处理，能获得二倍体雌核发育鱼，通过冷休克对“受精卵”进行处理，仍然获得了二倍体雌核发育鱼。
For the cryogenic preservation of fish , in this paper we made the primary culture of the kidney of allotetroploid crucian carp and primary studies were carried out on cryopreservation culture offish embryo cells derived from misgurnus auguillicaudatus or grass carp , the results of the experiments are as follows : the primary cell culture of the kidney tissue derived from allotetroploid crucian carp was carried out using tissue adherent culture , the primary observations of the growth conditions and morphology of the primary culture and subculture cells which originally come from the kidney tissue were also made 本文主要从鱼类种质保存的目的出发，一方面以四倍体鲫鲤鱼为材料，对四倍体鲫鲤鱼肾脏组织进行初步培养，为建立相应细胞库及下一步培养冻存的鱼类胚胎细胞奠定基础；另一方面，以鱼类组织细胞培养技术为基础，泥鳅胚胎细胞为材料，对鱼类胚胎细胞冻存培养方法进行初步研究，并应用该技术方法对草鱼早期胚胎细胞进行冻存培养实验。报告如下：本文用组织贴壁法对四倍体鲫鲤鱼肾组织进行原代、传代培养。
The formation of the population of the allotetraploid hybrids of red crucian carp and common carp is the first case in the world which both the female and the male of allotetraploids are fertile , they are the good materials for studying the biological characteristic of tetraploid animals , this paper reports the hereditary characters of allotetraploids including the stability of hereditary gynogenesis and androgenesis 异源四倍体鲫鲤是世界上首例人工培育的两性可育的四倍体鱼，这为研究四倍体的生物学特性提供了良好的实验材料，本文对异源四倍体鲫鲤的遗传特性进行了研究，主要包括其遗传稳定性、雌核发育、雄核发育方面的研究。
