onr:"swepub:oai:DiVA.org:su-203144"
Search: onr:"swepub:oai:DiVA.org:su-203144" > A multi-isotope app...
- 1 of 1
- Previous record
- Next record
- To hitlist
A multi-isotope approach to evaluate the potential of great cormorant eggs for contaminant monitoring
-
- Jones, Douglas (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,ARTDATABANKEN,Swedish Species Information Centre
-
- Ovegård, Maria (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för akvatiska resurser,Department of Aquatic Resources
- Dahlgren, Henrik (author)
- show more...
- Danielsson, Sara (author)
- Garbaras, Andrius (author)
- show less...
- (creator_code:org_t)
- Elsevier BV, 2022
- 2022
- English.
- In: Ecological Indicators. - : Elsevier BV. - 1470-160X .- 1872-7034. ; 136
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- Contaminant monitoring in biota is important for determining environmental status and to detect or prioritize action on hazardous substances. Predators higher up a food chain are often used for monitoring of contaminants that bioaccumulate. However, it is not always possible to find higher predators that are both abundant and have a wide distribution for national or international contaminant monitoring. Great cormorants (Phalocrocorax carbo) are a widespread and increasingly common top predator of fish in fresh, brackish and salt water. We evaluate the suitability of great cormorant eggs as a matrix for contaminant monitoring by using stable isotopes of carbon, nitrogen and sulfur. Despite the fact that cormorants are migratory, egg isotope values showed a significant separation between five breeding colonies in Sweden (1 fresh water lake, 3 Baltic sites and 1 marine site). This high degree of separation indicates that eggs are primarily produced using local resources (not stored body resources) and that contaminants (mercury concentrations in this study) measured in eggs likely reflect levels in fish prey caught close to the breeding area. Compound specific stable isotope analysis was used to estimate cormorant trophic position (TP) and concentrations of mercury in eggs were positively related to TP. The results show that a multi-isotope approach, combined with good ecological diet knowledge allow for meaningful and comparative interpretation of mercury concentrations in biota and that great cormorant eggs appear a suitable matrix to measure locally derived and maternally transferred contaminants.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Keyword
- Sweden
- Hg
- Amino acid
- Trophic position
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Ecological Indicators (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Jones, Douglas
- Ovegård, Maria
- Dahlgren, Henrik
- Danielsson, Sara
- Greger, Maria, 1 ...
- Landberg, Tommy, ...
- show more...
- Garbaras, Andriu ...
- Karlson, Agnes M ...
- show less...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Earth and Relate ...
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Biological Scien ...
- and Ecology
- Articles in the publication
- Ecological Indic ...
- By the university
- Stockholm University
- Swedish University of Agricultural Sciences
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
