Project Details
Description
European eel (Anguilla anguilla) and American eel (Anguilla rostrata) both spawn in the Sargasso Sea and it is well established that the spawning grounds of the two species overlap.
In 2006, a study reveals that over ten per cent of the Icelandic eel population was hybrids between the European and American eels. This finding moved the focus on the neighbouring Faroese eel and several scientists abroad were interested to investigate the hypothesis:
-Are European/American hybrids also found in the neighbouring Faroe Islands eel population, or are Faroese eel’s pure Europeans?
During the summer in 2011, I collected gill-tissue from 226 Faroese eel, from five Faroese locations, to use on DNA-analysis.
Analyses, based on among others these samples, shown that no hybrids were observed in the Faroese ells. However, for the Icelandic eels, our survey showed, that most of the Icelandic eels are pure European but there was also an important contribution of individuals of admixed ancestry (10.7%).
The Faroese eel samples are conserved in ethanol and stored in my freezer and are still available for future genetics research project on eels.
In 2006, a study reveals that over ten per cent of the Icelandic eel population was hybrids between the European and American eels. This finding moved the focus on the neighbouring Faroese eel and several scientists abroad were interested to investigate the hypothesis:
-Are European/American hybrids also found in the neighbouring Faroe Islands eel population, or are Faroese eel’s pure Europeans?
During the summer in 2011, I collected gill-tissue from 226 Faroese eel, from five Faroese locations, to use on DNA-analysis.
Analyses, based on among others these samples, shown that no hybrids were observed in the Faroese ells. However, for the Icelandic eels, our survey showed, that most of the Icelandic eels are pure European but there was also an important contribution of individuals of admixed ancestry (10.7%).
The Faroese eel samples are conserved in ethanol and stored in my freezer and are still available for future genetics research project on eels.
Key findings
1) No hybrids are observed in the Faroese ells.
2) Most of the Icelandic eels are pure European but there are also an important contribution of individuals of admixed ancestry (10.7%).
2) Most of the Icelandic eels are pure European but there are also an important contribution of individuals of admixed ancestry (10.7%).
| Status | Active |
|---|---|
| Effective start/end date | 1/05/11 → … |
Keywords
- European eel
- Anguilla anguilla
- Hybridization
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Hybrid ancestry of Greenlandic Nimeriak (Anguilla anguilla x A. rostrata)
Frankowski, J., Hedeholm, R., Møller, P. R., Lindner, I., Magnussen, E. & Sanchez, M. S., 2 Jul 2019.Research output: Contribution to conference › Poster › peer-review
File93 Downloads (Pure) -
Assessing pre- and post-zygotic barriers between North Atlantic eels (Anguilla anguilla and A. rostrata)
Jacobsen, M. W., Smedegaard, L., Sørensen, S. R., Pujolar, J. M., Munk, P., Jónsson, B., Magnussen, E. & Hansen, M. M., 1 Mar 2017, In: Heredity. 118, 3, p. 266-275 10 p.Research output: Contribution to journal › Article › peer-review
24 Citations (Scopus) -
Assessing patterns of hybridization between North Atlantic eels using diagnostic single-nucleotide polymorphisms
Pujolar, J. M., Jacobsen, M. W., Als, T. D., Frydenberg, J., Magnussen, E., Jónsson, B., Jiang, X., Cheng, L., Bekkevold, D., Maes, G. E., Bernatchez, L. & Hansen, M. M., 2014, In: Heredity. 112, 6, p. 627-637 11 p.Research output: Contribution to journal › Article › peer-review
57 Citations (Scopus)