Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
Factors affecting mercury concentrations in two oceanic cephalopods of commercial interest from the southern Caribbean
Garcia Barcia, L.; Pinzone, M.; Lepoint, G.; Pau, C.; Das, K.; Kiszka, J.J. (2021). Factors affecting mercury concentrations in two oceanic cephalopods of commercial interest from the southern Caribbean. Mar. Pollut. Bull. 168: 112408. https://dx.doi.org/10.1016/j.marpolbul.2021.112408
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363, meer
|  |
| Trefwoorden |
Ommastrephes bartramii (Lesueur, 1821) [WoRMS]; Thysanoteuthis rhombus Troschel, 1857 [WoRMS]
Marien/Kust |
| Author keywords |
Neon-flying squid; Diamondback squid; Heavy metals; Stable isotopes; Sulfur |
| Auteurs | | Top |
- Garcia Barcia, L.
- Pinzone, M., meer
- Lepoint, G., meer
|
- Pau, C.
- Das, K., meer
- Kiszka, J.J.
|
|
| Abstract |
Mercury (Hg) concentrations have significantly increased in oceans during the last century. This element accumulates in marine fauna and can reach toxic levels. Seafood consumption is the main pathway of methylmercury (MeHg) toxicity in humans. Here, we analyzed total Hg (T-Hg) concentrations in two oceanic squid species (Ommastrephes bartramii and Thysanoteuthis rhombus) of an increasing commercial interest off Martinique, French West Indies. Stable isotope ratios reveal a negative linear relationship between δ15N or δ13C in diamondback squid samples. No significant trend was observed between δ34S values and T-Hg concentrations, contrasting with the sulfate availability and sulfide abundance hypotheses. This adds to a growing body of evidence suggesting Hg methylation via sulfate-reducing bacteria is not the main mechanism driving Hg bioavailability in mesopelagic organisms. All squid samples present T-Hg levels below the maximum safe consumption limit (0.5 ppm), deeming the establishment of a commercial squid fishery in the region safe for human consumption. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
