废物污染对生殖生理学的形态和基因影响
Francesca Glaviano1,2, Serena Federico3, Bruno Pinto2
1Stazione Zoologica Anton Dohrn, Department of Ecosustainable Marine Biotechnology, Ischia Marine Centre, Naples, Italy.
Frontiers in physiology
|June 8, 2023
概括
来自动物废物的沿海污染影响了海的繁殖. 再循环水产养殖系统 (RAS) 对关键物种产生次致命的营养污染影响,影响基因表达和生存率.
科学领域:
- 海洋生物学 海洋生物学
- 环境科学 环境科学
- 水产养殖是水产养殖的一种方式.
背景情况:
- 沿海污染源于家庭垃圾,植物/动物代谢和工业污染物.
- 废物污染物包括稀释的可溶性化合物和死生物的颗粒,影响海洋生物和碳循环.
- 再循环水产养殖系统 (RAS) 越来越多地使用,但对动物代谢污染的基因反应尚未得到充分研究.
研究的目的:
- 为了比较海在开放循环与循环水产养殖系统 (RAS) 中的繁殖性能.
- 调查RAS中动物排泄物逐渐增加的污染的影响.
- 在不同的污染条件下分析基因表达和其他生殖参数.
主要方法:
- 在开放循环和RAS中培养普通海 (Paracentrotus lividus) 7个月.
- 采集了用于体外受精和胚胎分析的雌同体,使用实时qPCR.
- 评估了海刺的生育能力,淋巴体指数和淋巴体组织学.
主要成果:
- 亚致命的营养污染严重影响了Paracentrotus lividus的繁殖潜力.
- 慢性压力影响在生存率和基因表达分析中很明显.
- 在RAS条件下的污染对海的繁殖性能产生了负面影响.
结论:
- 过多的营养素,即使在次致命水平,对关键海洋物种的繁殖能力构成重大威胁.
- 基因表达分析是检测海洋生物中慢性污染引起的压力的宝贵工具.
- 了解和减轻水产养殖系统中的污染对于物种保护和可持续实践至关重要.
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