nieuwe zoekopdracht
[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina

Seasonal variation of harbor seal's diet from the Wadden Sea in relation to prey availability
de la Vega, C.; Lebreton, B.; Siebert, U.; Guillou, G.; Das, K.; Asmus, R.; Asmus, H. (2016). Seasonal variation of harbor seal's diet from the Wadden Sea in relation to prey availability. PLoS One 11(5): e0155727.
In: PLoS One. Public Library of Science: San Francisco. ISSN 1932-6203; e-ISSN 1932-6203, meer
Peer reviewed article  

Beschikbaar in  Auteurs 


Auteurs  Top 
  • de la Vega, C.
  • Lebreton, B.
  • Siebert, U.
  • Guillou, G.
  • Das, K.
  • Asmus, R.
  • Asmus, H.

    The Wadden Sea has an important role for marine mammals in terms of resting, nursing and foraging. Harbor seal is the most abundant marine mammal species in this area. The use of the food resources of the Wadden Sea by seals is not clear, and previous studies showed that this species can travel kilometers away from their haul-outs to forage in the North Sea. In this study, we analyzed the stable isotopes of vibrissae from 23 dead harbor seals found on the island of Sylt to investigate their diet. The predator's carbon and nitrogen isotope compositions were compared to the compositions of different potential prey items from the Sylt-Romo Bight and from the North Sea in order to study seasonal pattern in the diet and in the foraging location. In parallel, seasonal variation of abundance and biomass of the potential prey items from the Sylt-Romo Bight were studied and compare to their contribution to the seal's diet. The results revealed a change in the seal's diet from pelagic sources in spring to a benthic based diet in summer, and an increasing use of the North Sea resources in fall and winter in accordance with the seasonal variation of the availability of prey in the Sylt-Romo Bight.

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs 
IMIS is ontwikkeld en wordt gehost door het VLIZ, voor meer informatie contacteer .