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Bioaccumulation of arsenic species in rays from the northern Adriatic Sea

Šlejkovec, Zdenka ; Stajnko, Anja LU ; Falnoga, Ingrid ; Lipej, Lovrenc ; Mazej, Darja ; Horvat, Milena and Faganeli, Jadran (2014) In International Journal of Molecular Sciences 15(12). p.22073-22091
Abstract

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... (More)

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.

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author
; ; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
keywords
Arsenic, Bioaccumulation, Biomagnification, Myliobatis aquila, Pteromylaeus bovinus, Pteroplatytrygon violacea
in
International Journal of Molecular Sciences
volume
15
issue
12
pages
22073 - 22091
publisher
MDPI AG
external identifiers
  • scopus:84914689897
  • pmid:25470025
ISSN
1661-6596
DOI
10.3390/ijms151222073
language
English
LU publication?
no
additional info
Publisher Copyright: © 2014 by the authors; licensee MDPI, Basel, Switzerland.
id
34176add-e740-4f8f-aaae-d34155a4f746
date added to LUP
2025-02-21 21:54:41
date last changed
2025-02-24 08:04:19
@article{34176add-e740-4f8f-aaae-d34155a4f746,
  abstract     = {{<p>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<sup>−1</sup> 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.</p>}},
  author       = {{Šlejkovec, Zdenka and Stajnko, Anja and Falnoga, Ingrid and Lipej, Lovrenc and Mazej, Darja and Horvat, Milena and Faganeli, Jadran}},
  issn         = {{1661-6596}},
  keywords     = {{Arsenic; Bioaccumulation; Biomagnification; Myliobatis aquila; Pteromylaeus bovinus; Pteroplatytrygon violacea}},
  language     = {{eng}},
  month        = {{12}},
  number       = {{12}},
  pages        = {{22073--22091}},
  publisher    = {{MDPI AG}},
  series       = {{International Journal of Molecular Sciences}},
  title        = {{Bioaccumulation of arsenic species in rays from the northern Adriatic Sea}},
  url          = {{http://dx.doi.org/10.3390/ijms151222073}},
  doi          = {{10.3390/ijms151222073}},
  volume       = {{15}},
  year         = {{2014}},
}