Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091279 |
Persistence of Biogeochemical Alterations of Deep‐Sea Sediments by Bottom Trawling | |
S. Paradis; M. Goñ; i; P. Masqué; R. Durá; n; M. Arjona‐; Camas; A. Palanques; P. Puig | |
2020-12-15 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | Bottom trawling grounds have been expanding to deeper areas of the oceans since the mid‐XXth century, and mitigating strategies aimed to protect fish stocks, such as temporal trawling closures, have recently been implemented. Here we investigated the biogeochemical properties of sediment from a deep‐sea trawling ground in Palamós Canyon (NW Mediterranean) to assess the effects of a 2‐month trawling closure in the recovery of sedimentary organic matter. In comparison to untrawled areas, the continuous erosion and sediment mixing in trawling grounds led to coarser reworked sediments impoverished in organic carbon (∼30% loss) and promoted the degradation of labile compounds (52‐70% loss). These impacts persisted after the temporal trawling closure, highlighting that this management strategy is insufficient to restore the seafloor. Considering the continuous expansion of bottom trawling grounds, this activity could have significant and irreversible biogeochemical impacts on ocean margins at a global scale, hampering carbon burial capacity. |
领域 | 气候变化 |
URL | 查看原文 |
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文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/308140 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | S. Paradis,M. Goñ,i,等. Persistence of Biogeochemical Alterations of Deep‐Sea Sediments by Bottom Trawling[J]. Geophysical Research Letters,2020. |
APA | S. Paradis.,M. Goñ.,i.,P. Masqué.,R. Durá.,...&P. Puig.(2020).Persistence of Biogeochemical Alterations of Deep‐Sea Sediments by Bottom Trawling.Geophysical Research Letters. |
MLA | S. Paradis,et al."Persistence of Biogeochemical Alterations of Deep‐Sea Sediments by Bottom Trawling".Geophysical Research Letters (2020). |
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