French Biodiversity Agency (OFB), Channel and North Sea Delegation, 4 rue du Colonel Fabien, BP 34, 76083 Le Havre, France; University of Girona, Institute of Aquatic Ecology, Faculty of Sciences, C/Maria Aurèlia Capmany 69, E-17003 Girona, Catalonia, Spain.
Aix-Marseille University, CNRS/INSU, Toulon University, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, Campus de Luminy, 13288 Marseille, France.
Mar Pollut Bull. 2022 Mar;176:113411. doi: 10.1016/j.marpolbul.2022.113411. Epub 2022 Feb 24.
Studies integrating trophic ecology, physiological condition and accumulation of heavy metals in top predators, such as swordfish, are needed to better understand the links between them and the risk to humans associated with consumption of these fish. This research focuses on the swordfish of the Catalan Sea and follows a multi method approach that considers their diet, their liver lipid content, and mercury accumulation in their bodies as well as in their prey. The aim is to highlight the links between trophic ecology, physiology (fish condition), and eco-toxicology. Results indicate that poor condition of swordfish based on size and the levels of lipid in the liver, and the high Hg levels accumulated to the trophic web (particularly from cephalopods) may indicate potential unfavourable feeding and reproduction conditions for swordfish in the NW Mediterranean and this warrants further investigation.
需要对顶级掠食者（如箭鱼）的营养生态学、生理状况和重金属积累进行综合研究，以更好地了解它们之间的联系，以及人类食用这些鱼类所带来的风险。本研究以加泰罗尼亚海域的箭鱼为研究对象，采用多方法研究，考虑了它们的饮食、肝脏脂质含量以及汞在其体内及其猎物中的积累情况。目的是强调营养生态学、生理学（鱼类状况）和生态毒理学之间的联系。研究结果表明，箭鱼的状况不佳，这体现在体型和肝脏中的脂质水平上，以及在营养级中积累的高汞水平（特别是来自头足类动物），这可能表明西北地中海地区的箭鱼存在潜在的不利摄食和繁殖条件，需要进一步调查。
