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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.

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Seabirds foraging at floating seaweeds in the Northeast Atlantic Vandendriessche, S.; Stienen, E.W.M.; Vincx, M.; Degraer, S. (2007). Seabirds foraging at floating seaweeds in the Northeast Atlantic. Ardea 95(2): 289-298. https://dx.doi.org/10.5253/078.095.0211 In: Ardea. Nederlandse Ornithologische Unie: Arnhem & Leiden. ISSN 0373-2266; e-ISSN 2213-1175, meer

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Beschikbaar in	Auteurs
VLIZ: Open Marine Archive 131097 [ download pdf ]

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Trefwoorden

Aquatic organisms > Marine organisms > Aquatic birds > Marine birds Behaviour > Feeding behaviour Behaviour > Feeding behaviour > Foraging behaviour Eukaryotes > Animals > Chordata > Vertebrates > Birds > Aquatic animals > Sea birds Floating Flora > Weeds > Marine organisms > Seaweeds Organisms > Aquatic organisms > Plants > Aquatic plants > Seaweeds Alca torda Linnaeus, 1758 [WoRMS]; Fratercula arctica (Linnaeus, 1758) [WoRMS]; Melanitta nigra (Linnaeus, 1758) [WoRMS]; Mergus serrator Linnaeus, 1758 [WoRMS]; Phalacrocorax carbo (Linnaeus, 1758) [WoRMS]; Somateria mollissima (Linnaeus, 1758) [WoRMS]; Sula bassana (Linnaeus, 1758) [WoRMS]; Uria aalge (Pontoppidan, 1763) [WoRMS] AE, Noord Atlantisch [Marine Regions]; ANE, Atlantic [Marine Regions]; Zanzibar Marien/Kust

Author keywords

seabirds; floating seaweed; Northeast Atlantic; feeding strategy

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Auteurs		Top
Vandendriessche, S., meer Stienen, E.W.M., meer Vincx, M., meer Degraer, S., meer

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Abstract

The influence of floating seaweed patches on the distribution and behaviour of seabirds was investigated using the European Seabirds At Sea database (ESAS). The percentage of observations that seabirds were observed with floating seaweed differed among species, depending on the mode of foraging. The results indicate that surface feeding species that make shallow dives (terns and Red-breasted Mergansers Mergus serrator) benefit most from the presence of floating seaweeds and their associated macro- and ichthyofauna. Species hunting for pelagic and bottom-dwelling prey (divers, Guillemots Uria aalge, Razorbills Alca torda, Puffins Fratercula arctica, Gannets Sula bassana and Cormorants Phalacrocorax carbo), and especially benthos feeders (Common Scoters Melanitta nigra and Eiders Somateria mollissima) were frequently seen in association with floating seaweeds, while opportunists and scavengers like gulls and skuas were recorded on few occasions. Petrels and shearwaters (surface-seizing, pursuit-plunging, pursuit-diving) were seldomly seen in association with floating seaweeds. The most common behavioural activities of the birds associated with floating seaweed were found to be surface pecking, actively searching, and pursuit plunging.

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