DMS behaviors in pen culture of Sinonovacula constricta in Longhai, China

IF 3 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Marine environmental research Pub Date : 2024-11-02 DOI:10.1016/j.marenvres.2024.106826

Chao Zhang, Nuoxuan Wang, Shengbin Lv, Shibo Yan, Rong Tian, Shanshan Wang, Bingkun Wang, Jinpei Yan, Miming Zhang

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Abstract

Dimethyl sulfide (DMS) released by the ocean has received widespread attention due to its role in aerosol formation and impact on global climate change. Research on DMS mainly focuses on coastal and open ocean environments, with limited studies addressing the influence of aquaculture activities on the production and release of marine DMS. Thus, we investigated whether fertilization for algae cultivation and the feeding process in pen culture of Sinonovacula constricta significantly contribute to DMS release. We found notable diurnal variations in DMS concentrations during and after the culture period in the ponds. During the post-culture period, both the concentration and flux of DMS in the ponds were higher than those during the culture period. The average flux of DMS during the culture and post-culture period were only 0.1 ± 0.1 μmol/(m²·d) and 0.4 ± 0.3 μmol/(m²·d), respectively, indicating that aquaculture activities of Sinonovacula constricta may not produce or release substantial DMS when compared with those from the coastal aeras and open oceans.

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中国龙海缢蛏笔养殖中的 DMS 行为。

海洋释放的二甲基硫醚（DMS）因其在气溶胶形成中的作用和对全球气候变化的影响而受到广泛关注。对二甲基硫醚的研究主要集中在沿海和开阔洋环境，而针对水产养殖活动对海洋二甲基硫醚产生和释放的影响的研究还很有限。因此，我们研究了肥水培藻和围栏养殖缢蛏的投喂过程是否会显著促进 DMS 的释放。我们发现，在池塘养殖期间和养殖结束后，DMS浓度有明显的昼夜变化。在养殖后期，池塘中 DMS 的浓度和通量均高于养殖期间。养殖期间和养殖后的 DMS 平均通量分别仅为 0.1 ± 0.1 μmol/(m2-d) 和 0.4 ± 0.3 μmol/(m2-d)，这表明与沿岸海域和公海的 DMS 相比，狭鳕的养殖活动可能不会产生或释放大量 DMS。

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来源期刊

Marine environmental research 环境科学-毒理学

CiteScore

5.90

自引率

3.00%

发文量

217

审稿时长

46 days

期刊介绍： Marine Environmental Research publishes original research papers on chemical, physical, and biological interactions in the oceans and coastal waters. The journal serves as a forum for new information on biology, chemistry, and toxicology and syntheses that advance understanding of marine environmental processes. Submission of multidisciplinary studies is encouraged. Studies that utilize experimental approaches to clarify the roles of anthropogenic and natural causes of changes in marine ecosystems are especially welcome, as are those studies that represent new developments of a theoretical or conceptual aspect of marine science. All papers published in this journal are reviewed by qualified peers prior to acceptance and publication. Examples of topics considered to be appropriate for the journal include, but are not limited to, the following: – The extent, persistence, and consequences of change and the recovery from such change in natural marine systems – The biochemical, physiological, and ecological consequences of contaminants to marine organisms and ecosystems – The biogeochemistry of naturally occurring and anthropogenic substances – Models that describe and predict the above processes – Monitoring studies, to the extent that their results provide new information on functional processes – Methodological papers describing improved quantitative techniques for the marine sciences.