Linking Species Functional Traits to Specific Biogeochemical Processes under Trawling Pressure.
Linking Species Functional Traits to Specific Biogeochemical Processes under Trawling Pressure.
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DOI：
10.3390/biology11101378
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发表时间：
2022-09-21
期刊：
影响因子：
4.2
通讯作者：
Austen, Melanie C.
中科院分区：
文献类型：
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作者：
Tsikopoulou, Irini;Smith, Christopher J.;Papadopoulou, Konstantia Nadia;Austen, Melanie C.
底拖网捕鱼时，渔具的不同部分会对海底产生物理影响，包括拖网钢丝、门、地绳和网。这样，拖网就从底层沃茨、沉积物表面和浅的次表面捕捞动物。生活在海底的动物以其活动和生活方式在营养循环等主要生态系统过程中发挥着重要作用。本研究探讨拖网压力下物种功能特性与生态系统功能的关系。我们的研究结果表明，在拖网，更多的机会主义的生活方式和存款馈线与生态系统过程，而在未受干扰的地区，这些过程与生物扰动和穴居物种。找到这些联系有助于科学家和决策者更好地预测捕捞干扰对海洋环境的影响，并为海洋生态系统的影响设定适当的阈值。在贫营养的南海，研究了拖网捕捞对底栖无脊椎动物功能特征与特定生态地球化学过程之间关系的影响。渔业通过夏季季节性关闭进行管理。在两个季节（冬季和夏季），重复样品从现场从商业拖网地面和相邻的控制区。测量了与沉积物生物地球化学有关的环境参数，包括颗粒有机碳、沉积物有机碳、底层水和沉积物叶绿素a和phaeopigment浓度以及底栖生物耗氧量。据记录，拖网捕捞仅对底层水叶绿素和沉积有机碳产生重大影响。此外，物种特征与特定生态系统进程之间的联系受到拖网捕捞的影响，突出表明独特的功能模式对生态系统运作的重要性。在控制点，主要影响底栖生物地球化学的特征与生物扰动和挖洞活动有关。相比之下，在拖网捕捞网站，相关的特征与更多的机会主义的生活方式和存款喂养的物种，不作为生物扰动。因此，在拖网捕捞干扰下，这种转变可以解除物种-沉积物关系的耦合，并影响养分循环。
Bottom trawls when fishing move over large areas with different parts of the gears physically impacting the sea bottom, including the trawling wires, doors, ground rope and net. In this way, the trawl nets remove animals from bottom waters, the sediment surface and shallow sub-surface. The animals that live in the sea bottom with their activities and lifestyle play an important role in major ecosystem processes such as nutrient cycling. In this study, we investigated the relationship between species functional characteristics and ecosystem functions under trawling pressure. Our results indicated that under trawling, more opportunistic lifestyles and deposit feeders were associated with the ecosystem processes while in the undisturbed areas these processes were connected with bioturbating and burrowing species. Finding these links helps scientists and policy makers to better predict the impact of fishing disturbance on marine environment and set appropriate thresholds for marine ecosystem impacts. The impact of otter trawling on the relationship between functional traits of benthic invertebrates and specific biogeochemical processes were investigated in the oligotrophic Cretan Sea. The fishery is managed through a seasonal closure during the summer. During two seasons (winter and summer) replicate samples were taken from the field from a commercial trawl ground and an adjacent control area. Environmental parameters related to sediment biogeochemistry were measured including particulate organic carbon, sedimentary organic carbon, bottom water and sedimentary chlorophyll a and phaeopigment concentrations as well as benthic oxygen consumption. A significant impact of trawling was recorded only for bottom water chlorophyll and sedimentary organic carbon. Furthermore, the links between species traits and specific ecosystem processes were affected by trawling, highlighting the importance of unique functional modalities on ecosystem functioning. The traits that mostly influenced benthic biogeochemistry in the control sites were related to bioturbation and burrowing activities. In contrast, in the trawled sites, the associated traits were related to more opportunistic lifestyles and deposit feeding species that do not act as bioturbators. Thus, under trawling disturbance, this shift can decouple the species-sediment relations and affect nutrient cycling.
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影响因子：
6.9
作者：
Gogina, Mayya;Morys, Claudia;Zettler, Michael L.
通讯作者：
Zettler, Michael L.
DOI：
10.1073/pnas.1802379115
发表时间：
2018-10-23
影响因子：
11.1
作者：
Amoroso RO;Pitcher CR;Rijnsdorp AD;McConnaughey RA;Parma AM;Suuronen P;Eigaard OR;Bastardie F;Hintzen NT;Althaus F;Baird SJ;Black J;Buhl-Mortensen L;Campbell AB;Catarino R;Collie J;Cowan JH Jr;Durholtz D;Engstrom N;Fairweather TP;Fock HO;Ford R;Gálvez PA;Gerritsen H;Góngora ME;González JA;Hiddink JG;Hughes KM;Intelmann SS;Jenkins C;Jonsson P;Kainge P;Kangas M;Kathena JN;Kavadas S;Leslie RW;Lewis SG;Lundy M;Makin D;Martin J;Mazor T;Gonzalez-Mirelis G;Newman SJ;Papadopoulou N;Posen PE;Rochester W;Russo T;Sala A;Semmens JM;Silva C;Tsolos A;Vanelslander B;Wakefield CB;Wood BA;Hilborn R;Kaiser MJ;Jennings S
通讯作者：
Jennings S
影响因子：
2.3
作者：
de Madron, XD;Ferré, B;Bodiot, O
通讯作者：
Bodiot, O
影响因子：
2.3
作者：
Dounas, Costas;Davies, Ian;Eleftheriou, Anastasios
通讯作者：
Eleftheriou, Anastasios
影响因子：
11.6
作者：
通讯作者：
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