Distribution, bioaccumulation, and trace element transfer among trophic levels in the southeastern Gulf of California

被引：5
|
作者：
Valladolid-Garnica, D. E. [1 ]
Jara-Marini, M. E. [2 ]
Torres-Rojas, Y. E. [3 ]
Soto-Jimenez, M. F. [4 ]
机构：
[1] Univ Nacl Autonoma Mexico, Posgrad Ciencias Mar & Limnol, Ave Univ 3000,Ciudad Univ Coyoacan, Mexico City 04510, Mexico
[2] Ctr Investn Alimentac & Desarrollo, AC Unidad Hermosillo, Carretera Gustavo Astiazaran Rosas 46, Hermosillo 83304, Sonora, Mexico
[3] Univ Autonoma Campeche EPOMEX UAC, Inst Ecol Pesquerias & Oceanog Golfo Mexico, Campeche, Mexico
[4] Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Ave Joel Montes Camarena, Mazatlan 82040, Sinaloa, Mexico
来源：
MARINE POLLUTION BULLETIN | 2023年 / 194卷
关键词：
Marine food web; Essentiality and toxicity trace elements; Trophic magnification factor; Aquatic environment; Biomagnification; Biodilution; STABLE-ISOTOPE; FOOD-WEB; HEAVY-METALS; ISTIOPHORUS PLATYPTERUS; RELATIVE IMPORTANCE; MAZATLAN HARBOR; PELAGIC FISH; BIOMAGNIFICATION; SEDIMENTS; CADMIUM;
D O I：
10.1016/j.marpolbul.2023.115290
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Our understanding of the trophic transfer of pollutants in marine subtropical ecosystems remains limited due to the complexity of their food webs. Thus, we aimed to evaluate Cd, Cu, Mn, Pb, and Zn sources, incorporation, and trophodynamics throughout the food web of the southeastern Gulf of California by stomach content analysis, stable isotope analysis, isotope mixing models, and trace element analysis in biological and environmental matrices. The food web comprised three main trophic guilds (TG1, TG2, and TG3). The bioaccumulation of Cd and Zn from seawater was efficient (> 1000) in TG2 and TG3. Bioaccumulation factor from sediment (BSAF >1) evidenced of Cd in all trophic guilds. In addition, non-trophic Cd relationships were identified in the food web. Based on the trophic magnification factor (TMF), Mn and Pb showed biodilution (TMFMn = 0.38; TMFPb = 0.16), while Cu and Zn exhibited biomagnification (TMFCu = 2.08; TMFZn = 3.31).
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页数：17
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