Bioaccumulation of Arsenic Species in Rays from the Northern Adriatic Sea
The difference in arsenic concentration and speciation between benthic (Pteromylaeus bovinus, Myliobatis aquila) and pelagic rays (Pteroplatytrygon violacea) from the northern Adriatic Sea (Gulf of Trieste) in relation to their size (age) was investigated. High arsenic concentrations were found in b...
Main Authors: | , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2014-12-01
|
Series: | International Journal of Molecular Sciences |
Subjects: | |
Online Access: | http://www.mdpi.com/1422-0067/15/12/22073 |
id |
doaj-83f120e39fbf48a5a0aa0d83c1e442f4 |
---|---|
record_format |
Article |
spelling |
doaj-83f120e39fbf48a5a0aa0d83c1e442f42020-11-24T22:59:55ZengMDPI AGInternational Journal of Molecular Sciences1422-00672014-12-011512220732209110.3390/ijms151222073ijms151222073Bioaccumulation of Arsenic Species in Rays from the Northern Adriatic SeaZdenka Šlejkovec0Anja Stajnko1Ingrid Falnoga2Lovrenc Lipej3Darja Mazej4Milena Horvat5Jadran Faganeli6Department of Environmental Sciences, Jožef Stefan Institute, Jamova 39, Ljubljana 1000, SloveniaDepartment of Environmental Sciences, Jožef Stefan Institute, Jamova 39, Ljubljana 1000, SloveniaDepartment of Environmental Sciences, Jožef Stefan Institute, Jamova 39, Ljubljana 1000, SloveniaMarine Biology Station, National Institute of Biology, Fornače 41, Piran 6330, SloveniaDepartment of Environmental Sciences, Jožef Stefan Institute, Jamova 39, Ljubljana 1000, SloveniaDepartment of Environmental Sciences, Jožef Stefan Institute, Jamova 39, Ljubljana 1000, SloveniaMarine Biology Station, National Institute of Biology, Fornače 41, Piran 6330, SloveniaThe difference in arsenic concentration and speciation between benthic (Pteromylaeus bovinus, Myliobatis aquila) and pelagic rays (Pteroplatytrygon violacea) from the northern Adriatic Sea (Gulf of Trieste) in relation to their size (age) was investigated. High arsenic concentrations were found in both groups with tendency of more efficient arsenic accumulation in benthic species, particularly in muscle (32.4 to 362 µg·g−1 of total arsenic). This was attributed to species differences in arsenic access, uptake and retention. In liver most arsenic was present in a form of arsenobetaine, dimethylarsinic acid and arsenoipids, whereas in muscle mainly arsenobetaine was found. The good correlations between total arsenic/arsenobetaine and size reflect the importance of accumulation of arsenobetaine with age. Arsenobetaine is an analogue of glycine betaine, a known osmoregulator in marine animals and both are very abundant in mussels, representing an important source of food for benthic species P. bovinus and M. aquila.http://www.mdpi.com/1422-0067/15/12/22073Pteromylaeus bovinusMyliobatis aquilaPteroplatytrygon violaceabioaccumulationbiomagnification |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zdenka Šlejkovec Anja Stajnko Ingrid Falnoga Lovrenc Lipej Darja Mazej Milena Horvat Jadran Faganeli |
spellingShingle |
Zdenka Šlejkovec Anja Stajnko Ingrid Falnoga Lovrenc Lipej Darja Mazej Milena Horvat Jadran Faganeli Bioaccumulation of Arsenic Species in Rays from the Northern Adriatic Sea International Journal of Molecular Sciences Pteromylaeus bovinus Myliobatis aquila Pteroplatytrygon violacea bioaccumulation biomagnification |
author_facet |
Zdenka Šlejkovec Anja Stajnko Ingrid Falnoga Lovrenc Lipej Darja Mazej Milena Horvat Jadran Faganeli |
author_sort |
Zdenka Šlejkovec |
title |
Bioaccumulation of Arsenic Species in Rays from the Northern Adriatic Sea |
title_short |
Bioaccumulation of Arsenic Species in Rays from the Northern Adriatic Sea |
title_full |
Bioaccumulation of Arsenic Species in Rays from the Northern Adriatic Sea |
title_fullStr |
Bioaccumulation of Arsenic Species in Rays from the Northern Adriatic Sea |
title_full_unstemmed |
Bioaccumulation of Arsenic Species in Rays from the Northern Adriatic Sea |
title_sort |
bioaccumulation of arsenic species in rays from the northern adriatic sea |
publisher |
MDPI AG |
series |
International Journal of Molecular Sciences |
issn |
1422-0067 |
publishDate |
2014-12-01 |
description |
The difference in arsenic concentration and speciation between benthic (Pteromylaeus bovinus, Myliobatis aquila) and pelagic rays (Pteroplatytrygon violacea) from the northern Adriatic Sea (Gulf of Trieste) in relation to their size (age) was investigated. High arsenic concentrations were found in both groups with tendency of more efficient arsenic accumulation in benthic species, particularly in muscle (32.4 to 362 µg·g−1 of total arsenic). This was attributed to species differences in arsenic access, uptake and retention. In liver most arsenic was present in a form of arsenobetaine, dimethylarsinic acid and arsenoipids, whereas in muscle mainly arsenobetaine was found. The good correlations between total arsenic/arsenobetaine and size reflect the importance of accumulation of arsenobetaine with age. Arsenobetaine is an analogue of glycine betaine, a known osmoregulator in marine animals and both are very abundant in mussels, representing an important source of food for benthic species P. bovinus and M. aquila. |
topic |
Pteromylaeus bovinus Myliobatis aquila Pteroplatytrygon violacea bioaccumulation biomagnification |
url |
http://www.mdpi.com/1422-0067/15/12/22073 |
work_keys_str_mv |
AT zdenkaslejkovec bioaccumulationofarsenicspeciesinraysfromthenorthernadriaticsea AT anjastajnko bioaccumulationofarsenicspeciesinraysfromthenorthernadriaticsea AT ingridfalnoga bioaccumulationofarsenicspeciesinraysfromthenorthernadriaticsea AT lovrenclipej bioaccumulationofarsenicspeciesinraysfromthenorthernadriaticsea AT darjamazej bioaccumulationofarsenicspeciesinraysfromthenorthernadriaticsea AT milenahorvat bioaccumulationofarsenicspeciesinraysfromthenorthernadriaticsea AT jadranfaganeli bioaccumulationofarsenicspeciesinraysfromthenorthernadriaticsea |
_version_ |
1725643358756405248 |