塑料皮:一种影响岩石海岸生物的新型塑料污染
Gerardo I Zardi1, Laurent Seuront2, François Gevaert3
1Normandie Université, UNICAEN, Laboratoire Biologie des Organismes et Ecosystèmes Aquatiques, UMR 8067 BOREA (CNRS, MNHN, UPMC, UCBN, IRD-207), CS 14032, 14000 Caen, France; Department of Zoology and Entomology, Rhodes University, Grahamstown 6140, South Africa.
Marine pollution bulletin
|October 15, 2024
概括
一种新的塑料污染类型"plastiskin"覆盖了像贝和大藻类这样的海洋生物. 这种由聚烯和聚乙烯制成的塑料会损害贝生态系统,但它对宏观藻类光合作用的影响需要进一步研究.
科学领域:
- 海洋生物学 海洋生物学
- 环境科学 环境科学
- 生态毒理学 生态毒理学
背景情况:
- 塑料污染是一个主要的全球环境问题,严重影响海洋生态系统.
- 潮区是面临越来越多污染压力的关键息地.
- 新型塑料垃圾对海洋生物的具体影响尚未完全理解.
研究的目的:
- 为了识别和描述一种新型的塑料污染,称为"plastiskin",在潮间生物体上发现.
- 研究"塑皮"对其宿主生物体,特别是贝和大藻类的生态影响.
- 为未来关于"塑皮"分布,持久性和生态后果的研究提供基线数据.
主要方法:
- 从受影响地区收集潮间生物 (和大藻类) 的现场采集.
- 化学分析 (例如,FTIR光谱) 来确定"塑皮"的组成.
- 对贝的显微镜检查,以评估"塑皮"对内分泌社区的影响.
- 在存在"塑皮"的情况下测量宏的光合作用效率.
主要成果:
- 鉴定出"塑性皮肤"是贝和大藻类的皮,主要由聚烯和聚乙烯组成.
- 在贝上存在"塑皮"和没有活体内层的存在之间观察到显著的相关性.
- 关于"plastiskin"对宏藻光合作用效率的影响,获得了不确定的结果,需要进一步调查.
结论:
- "Plastiskin"是一种新型的海洋垃圾,已被证明对贝内的共生性内体社区产生不利影响.
- "塑皮"对大藻类的生态影响需要进行额外的研究,因为研究结果不确定.
- 该研究强调需要考虑"塑料皮"作为一个独特的海洋垃圾类别,以改善环境管理和监测框架.
相关概念视频
Plasticity
2.1K
Plasticity is the property where an object loses its elasticity and undergoes irreversible deformation, even after the deformation forces are eliminated. If a material deforms irreversibly without increasing stress or load, then this is called ideal plasticity. For example, when a force is applied to an aluminum rod, it changes its shape, but it does not return to its original shape once the force is removed. Plastic deformation or ductility is thus a permanent deformation or change in the...
2.1K
Plastic Deformations
122
Plastic deformation represents a fundamental concept in materials science, which explains the irreversible change in the shape of a material when it experiences stress beyond its elastic capability. This phenomenon is important in structural engineering, especially in designing and analyzing cantilever beams—structures that are securely fixed at one end and bear loads at the opposite end. When these beams are subjected to loads within their elastic range, they will return to their...
122
Plastic Behavior
190
A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and...
190
Bioremediation
18.2K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.2K
Green Algae
Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...
Types of Step-Growth Polymers: Polyesters
2.2K
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
2.2K


