Level of mercury in tuna (Thunnini) and shark (Selachimorpha) in Costa Rica

Tuna and shark are the main fish in which analysis of mercury content are made in Costa Rica. The main destinations are domestic consumption, import and export, in that order. On these analyzes a simple statistical evaluation was performed to estimate the values of weekly intake recommended for risk...

Full description

Bibliographic Details
Main Author: Javier E Rodriguez
Format: Article
Language:English
Published: Universidad Estatal a Distancia (UNED) 2017-03-01
Series:Cuadernos de investigación UNED
Subjects:
Online Access:https://revistas.uned.ac.cr/index.php/cuadernos/article/view/1687
_version_ 1828845113788334080
author Javier E Rodriguez
author_facet Javier E Rodriguez
author_sort Javier E Rodriguez
collection DOAJ
description Tuna and shark are the main fish in which analysis of mercury content are made in Costa Rica. The main destinations are domestic consumption, import and export, in that order. On these analyzes a simple statistical evaluation was performed to estimate the values of weekly intake recommended for risk groups according to FAO. Records analysis by the Laboratorio Nacional de Servicios Veterinarios (LANASEVE) were used, considering the information related to type of fish, lot size, destination and mercury concentration. Lots were analyzed statistically in a range between 500 and 100.000 kg, where 439 data were available for tuna and 421 for shark. The lots are concentrated in the range between 1000 and 100,000 kg, with variations depending on species. The percentages above the legal limit of 1,00 mg Hg * kg-1 of fish are 7.1% for tuna and 20.7% shark. The populations of tuna and shark are not comparable, while the average of the different destinations tuna are more homogeneous than the shark. Data concentration of mercury in fish have a type Poisson distribution, with mean values of 0,577 mg Hg / kg of tuna and 0,860 mg Hg / kg of shark. These values are similar to those of other studies for these types of fish.
first_indexed 2024-12-12T21:20:32Z
format Article
id doaj.art-5e18cd82f0324f169555f8dcf5d182f8
institution Directory Open Access Journal
issn 1659-4266
1659-441X
language English
last_indexed 2024-12-12T21:20:32Z
publishDate 2017-03-01
publisher Universidad Estatal a Distancia (UNED)
record_format Article
series Cuadernos de investigación UNED
spelling doaj.art-5e18cd82f0324f169555f8dcf5d182f82022-12-22T00:11:36ZengUniversidad Estatal a Distancia (UNED)Cuadernos de investigación UNED1659-42661659-441X2017-03-019110.22458/urj.v9i1.1687Level of mercury in tuna (Thunnini) and shark (Selachimorpha) in Costa RicaJavier E RodriguezTuna and shark are the main fish in which analysis of mercury content are made in Costa Rica. The main destinations are domestic consumption, import and export, in that order. On these analyzes a simple statistical evaluation was performed to estimate the values of weekly intake recommended for risk groups according to FAO. Records analysis by the Laboratorio Nacional de Servicios Veterinarios (LANASEVE) were used, considering the information related to type of fish, lot size, destination and mercury concentration. Lots were analyzed statistically in a range between 500 and 100.000 kg, where 439 data were available for tuna and 421 for shark. The lots are concentrated in the range between 1000 and 100,000 kg, with variations depending on species. The percentages above the legal limit of 1,00 mg Hg * kg-1 of fish are 7.1% for tuna and 20.7% shark. The populations of tuna and shark are not comparable, while the average of the different destinations tuna are more homogeneous than the shark. Data concentration of mercury in fish have a type Poisson distribution, with mean values of 0,577 mg Hg / kg of tuna and 0,860 mg Hg / kg of shark. These values are similar to those of other studies for these types of fish.https://revistas.uned.ac.cr/index.php/cuadernos/article/view/1687mercuryleveltunasharkCosta RicaLANASEVE.
spellingShingle Javier E Rodriguez
Level of mercury in tuna (Thunnini) and shark (Selachimorpha) in Costa Rica
Cuadernos de investigación UNED
mercury
level
tuna
shark
Costa Rica
LANASEVE.
title Level of mercury in tuna (Thunnini) and shark (Selachimorpha) in Costa Rica
title_full Level of mercury in tuna (Thunnini) and shark (Selachimorpha) in Costa Rica
title_fullStr Level of mercury in tuna (Thunnini) and shark (Selachimorpha) in Costa Rica
title_full_unstemmed Level of mercury in tuna (Thunnini) and shark (Selachimorpha) in Costa Rica
title_short Level of mercury in tuna (Thunnini) and shark (Selachimorpha) in Costa Rica
title_sort level of mercury in tuna thunnini and shark selachimorpha in costa rica
topic mercury
level
tuna
shark
Costa Rica
LANASEVE.
url https://revistas.uned.ac.cr/index.php/cuadernos/article/view/1687
work_keys_str_mv AT javiererodriguez levelofmercuryintunathunniniandsharkselachimorphaincostarica