Total Mercury Content—Fish Weight Relationship in Swordfish (Xiphias gladius) Caught in the Southwest Atlantic Ocean
Source: Journal of Food Composition and Analysis, Volume 14, Number 5, October 2001 , pp. 453-460(8)
Publisher: Academic Press
Abstract:The total mercury content in the edible part of swordfish (Xiphias gladius) was determined in 192 specimens ranging from 10 to 412 kg, in the period January 1997–December 1999. Total mercury values between 0.04 and 2.21 mg kg-1, with a mean value of 0.62±0.35 mg kg-1, were obtained. Data were analyzed in two subsets. One of them, for specimens under 100 kg, yielded a mean value for total mercury content of 0.53±0.02 mg kg-1, and the other, for specimens above 100 kg, had a mean value of 0.94±0.06 mg kg-1. The existence of these subsets of data is related with the rate of mercury incorporation into swordfish flesh, in accordance with a potential model for total mercury bioaccumulation. Swordfish weighing below 100 kg can be considered safe for human consumption, according to international regulations.
Document Type: Research Article
Affiliations: 1: Facultad de Ciencias, Universidad de la República, Iguá 4225 casi Mataojo, Montevideo, 11400, Uruguay 2: Departamento de Desarrollo Industrial, Agricultura y Pesca, Casilla de Correo 1612, Montevideo, Uruguay
Publication date: October 1, 2001