The diet, growth and survival of Razorbill Alca torda chicks in the southern Barents Sea

Over 32 years (1981–2013), Razorbills Alca torda breeding at Hornøya, NE Norway fed their chicks on capelin Mallotus villosus, sandeels Ammodytes spp. and, sometimes, I-group herring Clupea harengus. It seems that Razorbills are opportunistic and feed their chicks the youngest stages of herring in y...

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Bibliographic Details
Published in:Ornis Norvegica
Main Author: Barrett, Robert T.
Format: Article in Journal/Newspaper
Language:English
Published: Norsk Ornitologisk Forening 2015
Subjects:
Barents Sea
Hornøya
Norway
Alca torda
Razorbill
Online Access:https://boap.uib.no/index.php/ornis/article/view/891
https://doi.org/10.15845/on.v38i0.891
Description
Summary:Over 32 years (1981–2013), Razorbills Alca torda breeding at Hornøya, NE Norway fed their chicks on capelin Mallotus villosus, sandeels Ammodytes spp. and, sometimes, I-group herring Clupea harengus. It seems that Razorbills are opportunistic and feed their chicks the youngest stages of herring in years when the latter are numerous in the southern Barents Sea. Increasing sea temperatures and resulting shifts in fish distribution may result in fewer capelin and more herring and sandeels in the chick diet.

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