辛基酚对雌性西部食蚊鱼(Gambusia affinis)生长和繁殖的影响
发布时间:2021-11-19 14:41
本试验研究了不同浓度的4-叔辛基苯酚(OP)暴露下性成熟的雌性西部食蚊鱼(Gambusia affinis)的生长和繁殖能量分配。4-叔辛基苯酚(OP)是一种环境污染物,已被证明可影响生殖参数以及性发育和生长。OP对成熟雌鱼生活史变量的影响尚不清楚。因此,本研究调查了在水中暴露于辛基酚(OP)28天的性成熟雌鱼的生殖和体细胞生长之间的能量分配,其中浓度梯度为0(对照组)、50和100μg/l浓度。结果显示,暴露于OP的雌性食蚊鱼生殖投入能量较少(随着浓度增加,生殖分配和胚胎脂肪含量减少),且体内能量储存增加(体细胞瘦肉重量增加)。此外,结果显示大量发育良好的鱼具有未发育的卵巢,并且χ2检验显示这种状况与OP浓度之间存在高度显著的相关性,与繁殖相比这种情况可能与体细胞中最高的能量投入有关。但是,OP暴露阻碍性成熟鱼卵巢发育的机制尚不清楚。总之,该研究表明,OP暴露增加了自身生长投入的能量,这可能导致个体肥胖,并且减少对繁殖的能量投入。此外,未发育的卵巢数量的增加可能导致产生后代数量减少。本研究表明了生命周期的任何阶段都会受到EDCs的显著影响。本研究中连续暴露于OP...
【文章来源】:西北农林科技大学陕西省 211工程院校 985工程院校 教育部直属院校
【文章页数】:59 页
【学位级别】:硕士
【文章目录】:
ABSTRACT
摘要
LIST OF ACRONYMS AND ABBREVIATIONS
CHAPTER ONE:INTRODUCTION
1.1.BACKGROUND
1.2.OP AS USED CHEMICAL
1.3.FEMALE MOSQUITOFISH(GAMBUSIA AFFINIS)AS A STUDY ORGANISM
1.4.OBJECTIVES
1.5.PREDICTION
1.6.RESEARCH QUESTIONS
1.7.PROBLEM STATEMENT
1.8.SIGNIFICANCE OF THE STUDY
CHAPTER TWO:MATERIALS AND METHODS
2.1.STUDY AREA
2.2.ANIMAL AND STUDY DESIGN
2.2.1.STUDY ANIMAL
2.2.2.USED CHEMICAL
2.2.3.EXPOSURE OF FISH
2.2.4. REPRODUCTIVE AND SOMATIC DATA COLLECTION
CHAPTER THREE:DATA ANALYSIS AND RESULTS
3.1.DATA ANALYSIS
3.1.1.FISH SURVIVAL AND ANY OTHER ABNORMAL RESPONSE
3.1.2. REPRODUCTIVE AND SOMATIC DATA ANALYSIS
3.2.RESULTS
3.2.1 FISH SURVIVAL AND ANY OTHER ABNORMAL RESPONSE
3.2.2.REPRODUCTIVE AND SOMATIC RESULTS
CHAPTER FOUR:DISCUSSION
4.1.EFFECT OF OP ON FEMALE LIFE HISTORY VARIABLES
4.2.EFFECT OF OP EXPOSURE ON FEMALE MOSQUITOFISH,GAMBUSIA AFFINIS OVARY
CONCLUSION AND RECOMMENDATIONS
REFERENCES
ACKNOWLEDGEMENTS
BIBLIOGRAPHY
本文编号:3505257
【文章来源】:西北农林科技大学陕西省 211工程院校 985工程院校 教育部直属院校
【文章页数】:59 页
【学位级别】:硕士
【文章目录】:
ABSTRACT
摘要
LIST OF ACRONYMS AND ABBREVIATIONS
CHAPTER ONE:INTRODUCTION
1.1.BACKGROUND
1.2.OP AS USED CHEMICAL
1.3.FEMALE MOSQUITOFISH(GAMBUSIA AFFINIS)AS A STUDY ORGANISM
1.4.OBJECTIVES
1.5.PREDICTION
1.6.RESEARCH QUESTIONS
1.7.PROBLEM STATEMENT
1.8.SIGNIFICANCE OF THE STUDY
CHAPTER TWO:MATERIALS AND METHODS
2.1.STUDY AREA
2.2.ANIMAL AND STUDY DESIGN
2.2.1.STUDY ANIMAL
2.2.2.USED CHEMICAL
2.2.3.EXPOSURE OF FISH
2.2.4. REPRODUCTIVE AND SOMATIC DATA COLLECTION
CHAPTER THREE:DATA ANALYSIS AND RESULTS
3.1.DATA ANALYSIS
3.1.1.FISH SURVIVAL AND ANY OTHER ABNORMAL RESPONSE
3.1.2. REPRODUCTIVE AND SOMATIC DATA ANALYSIS
3.2.RESULTS
3.2.1 FISH SURVIVAL AND ANY OTHER ABNORMAL RESPONSE
3.2.2.REPRODUCTIVE AND SOMATIC RESULTS
CHAPTER FOUR:DISCUSSION
4.1.EFFECT OF OP ON FEMALE LIFE HISTORY VARIABLES
4.2.EFFECT OF OP EXPOSURE ON FEMALE MOSQUITOFISH,GAMBUSIA AFFINIS OVARY
CONCLUSION AND RECOMMENDATIONS
REFERENCES
ACKNOWLEDGEMENTS
BIBLIOGRAPHY
本文编号:3505257
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