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Related Concept Videos

Other Algae01:19

Other Algae

126
The group Stramenopiles include some phototrophic microorganisms. Members of this group possess flagella covered in numerous short, hairlike extensions, a feature that inspired the group's name, derived from the Latin words for "straw" and "hair." Some of the main categories of Stramenopiles include diatoms, golden algae, and brown algae.Diatoms are unicellular, photosynthetic eukaryotes, with over 200 known genera. They play a key role in the planktonic communities of both marine and...
126
Red Algae01:23

Red Algae

268
Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...
268
Green Algae01:21

Green Algae

266
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...
266
Overview of Algae01:28

Overview of Algae

319
The kingdom Archaeplastida encompasses red and green algae, along with land plants. Unlike other protists with chloroplasts that arose through secondary endosymbiosis, only red and green algae originated from primary endosymbiotic events. This diverse group of eukaryotic organisms contains chlorophyll and performs oxygenic photosynthesis.Algae exist in various forms, from large brown kelp in coastal waters to green scum in puddles and stains on rocks or soil. Some species are responsible for...
319

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Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris
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Plastic debris in coastal macroalgae.

Qipei Li1, Lei Su2, Cuizhu Ma2

  • 1State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, 200241, China; College of Ecology and Environment, Hainan University, Haikou, 570228, China.

Environmental Research
|December 2, 2021
PubMed
Summary
This summary is machine-generated.

Macroalgae accumulate diverse plastic debris, including microplastics, through various interaction patterns. Environmental factors and macroalgae species influence plastic distribution along shorelines.

Keywords:
Coastal ecosystemLoading patternsMacroalgaeMacrophyteMicroplastics

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Area of Science:

  • Marine Biology
  • Environmental Science
  • Ecotoxicology

Background:

  • Macroalgae are key coastal producers, yet their role in plastic pollution is understudied.
  • Plastic debris is pervasive in marine ecosystems, affecting various organisms.

Purpose of the Study:

  • To investigate the occurrence and characteristics of plastic debris in five common macroalgae species from Chinese coastlines.
  • To understand the interaction patterns and influencing factors of plastic loading in macroalgae.

Main Methods:

  • Direct observation (non-digestion) and indirect observation (digestion) methods were used to identify and quantify plastic debris.
  • Plastic debris was categorized by size (macro, meso, microplastics), shape, and composition.
  • Similarity and principal component analysis were employed to assess relationships between plastic characteristics, macroalgae species, and environmental factors.

Main Results:

  • All three size classes of plastics were found in macroalgae, with varying abundances depending on the observation method.
  • Fibers were the dominant plastic shape, and polystyrene and polyester were common compositions.
  • Plastic characteristics were significantly influenced by macroalgae species, sampling regions, and beach types.

Conclusions:

  • Macroalgae interact with plastic debris through multiple pathways, including entanglement, adherence, wrapping, embedment, and entrapment.
  • Environmental factors play a crucial role in determining the distribution and characteristics of plastic pollution in macroalgae.
  • This study highlights macroalgae as significant vectors for plastic debris in coastal environments.