Use of the sea hare (Aplysia fasciata) in marine pollution biomonitoring of harbors and bays

MARINE POLLUTION BULLETIN

卷:129

Article

Dirrigl, Frank J., Jr.¹  Badaoui, Zachariah¹  Tamez, Carlos^2,3  Vitek, Christopher J.¹  Parsons, Jason G.² 

[1] Univ Texas Rio Grande Valley, Dept Biol, 1201 W Univ Dr, Edinburg, TX 78539 USA

[2] Univ Texas Rio Grande Valley, Dept Chem, 1201 W Univ Dr, Edinburg, TX 78539 USA

[3] Univ Texas El Paso, Dept Chem, 500 W Univ Ave, El Paso, TX 79902 USA

关键词: Bioaccumulation;    Harbors;    Heavy metals;    Sea hares;    Texas;   

DOI  :  10.1016/j.marpolbul.2017.10.056

来源: Elsevier

【 摘 要 】

Our study evaluated heavy metal concentrations in soft tissues of sea hare, Aplysia fasciata, from the Lower Laguna Madre, Texas. Heavy metals in tissues followed Se > As > Pb > Cd. Concentrations ranged As (BDL-28.08), Cd (BDL-5.50), Pb (BDL-12.85) and Se (4.25-93A3 ppm). Median As, Cd, Pb, and Se tissue levels exceeded exposure levels. Significant relationships occurred in metal-metal (As-Cd, As-Pb, Cd-Pb, Cd-Se, and Pb-Se), metal-tissue (significant Se uptake by inhalant and exhalant siphons and As in the hepatopancreas), and metal-metal within tissue (As-Pb in the hepatopancreas and Cd-Pb in the digestive cecum) analyses (p < 0.05). Bioaccumulation factors (BAF) suggested the inhalant siphon, hepatopancreas, and digestive cecum function as macroconcentrators of Cd, hepatopancreas and digestive cecum as macroconcentrators of Pb, and all tissues were deconcentrators for As and Se. As a bioaccumulator of heavy metals, Aplysia was evaluated as a bioindicator of marine pollution in harbors and bays.

【 授权许可】

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