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<p>Assessing the carbon sink potential of marine aquaculture is critical to fostering sustainable marine economic development and achieving carbon neutrality. This study evaluates the carbon sink potential of four nearshore aquaculture systems in China: floating raft, net cage, pond, and tidal flat. China’s coastal aquaculture shows a dramatic potential range from −5401.28×10<sup>4</sup> t to 84.65×10<sup>4</sup> t, acting as both a carbon sink and a source. Floating raft (11.19× 10<sup>4</sup> t to 105.65×10<sup>4</sup> t) and tidal flat (42.83×10<sup>4</sup> t to 114.35×10<sup>4</sup> t) are net carbon sinks. In contrast, net cage (−427.39×10<sup>4</sup> t to −4.26×10<sup>4</sup> t) and pond (−5027.91×10<sup>4</sup> t to −131.09×10<sup>4</sup> t) are significant net carbon sources. This heterogeneity is driven by differences in species, feed inputs, energy consumption, and management practices. The results highlight the need for targeted low-carbon technologies in high-emission systems to maximize carbon sequestration and mitigate their environmental impacts. This study provides a scientific basis for optimizing carbon management and offers insights for global sustainable aquaculture and carbon neutrality.</p>

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Estimation and simulation on carbon sinks potential of marine aquaculture in China

  • 期刊论文

  • 发表日期：

    2026年2月13日

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  • Peng Li,
  • Xinhao Wu,
  • Dezhi Ning,
  • Yichuan Zhang,
  • Mengru Jiang,
  • Siyi Li,
  • Nan Ma,
  • Jianke Guo

摘要

Assessing the carbon sink potential of marine aquaculture is critical to fostering sustainable marine economic development and achieving carbon neutrality. This study evaluates the carbon sink potential of four nearshore aquaculture systems in China: floating raft, net cage, pond, and tidal flat. China’s coastal aquaculture shows a dramatic potential range from −5401.28×104 t to 84.65×104 t, acting as both a carbon sink and a source. Floating raft (11.19× 104 t to 105.65×104 t) and tidal flat (42.83×104 t to 114.35×104 t) are net carbon sinks. In contrast, net cage (−427.39×104 t to −4.26×104 t) and pond (−5027.91×104 t to −131.09×104 t) are significant net carbon sources. This heterogeneity is driven by differences in species, feed inputs, energy consumption, and management practices. The results highlight the need for targeted low-carbon technologies in high-emission systems to maximize carbon sequestration and mitigate their environmental impacts. This study provides a scientific basis for optimizing carbon management and offers insights for global sustainable aquaculture and carbon neutrality.