Capelin (Mallotus villosus) as an important food source for northern fulmars (Fulmarus glacialis) breeding at Bjørnøya (Bear Island), Barents Sea

Cherel, Yves; Ridoux, Vincent; Weimerskirch, Henri; Tveraa, Torkild; Chastel, Olivier

doi:10.1006/jmsc.2000.1017

Cited by 9 publications

(5 citation statements)

References 39 publications

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“…The natural diet of fulmars in areas with little or no fisheries consists largely of zooplankton (Phillips et al 1999, Jahncke et al 2005a, although live fish are also taken and may be an important part of the diet (Cherel et al 2001). In the North Atlantic, in spite of the presence of large fisheries, fulmars have been shown to respond to climate change (Thompson & Ollason 2001), and the actual importance of fishery discharges, even in an area as heavily fished as the North Sea, has been called into question (Camphuysen & Garthe 1997, Phillips et al 1999.…”

Section: Food From Fisheriesmentioning

confidence: 99%

Modeled distribution and abundance of a pelagic seabird reveal trends in relation to fisheries

Renner¹,

Parrish²,

Piatt³

et al. 2013

Mar. Ecol. Prog. Ser.

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The northern fulmar Fulmarus glacialis is one of the most visible and widespread seabirds in the eastern Bering Sea and Aleutian Islands. However, relatively little is known about its abundance, trends, or the factors that shape its distribution. We used a long-term pelagic dataset to model changes in fulmar at-sea distribution and abundance since the mid-1970s. We used an ensemble model, based on a weighted average of generalized additive model (GAM), multivariate adaptive regression splines (MARS), and random forest models to estimate the pelagic distribution and density of fulmars in the waters of the Aleutian Archipelago and Bering Sea. The most important predictor variables were colony effect, sea surface temperature, distribution of fisheries, location, and primary productivity. We calculated a time series from the ratio of observed to predicted values and found that fulmar at-sea abundance declined from the 1970s to the 2000s at a rate of 0.83% (± 0.39% SE) per annum. Interpolating fulmar densities on a spatial grid through time, we found that the center of fulmar distribution in the Bering Sea has shifted north, coinciding with a northward shift in fish catches and a warming ocean. Our study shows that fisheries are an important, but not the only factor, shaping fulmar distribution and abundance trends in the eastern Bering Sea and Aleutian Islands.

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Section: Food From Fisheriesmentioning

confidence: 99%

Modeled distribution and abundance of a pelagic seabird reveal trends in relation to fisheries

Renner¹,

Parrish²,

Piatt³

et al. 2013

Mar. Ecol. Prog. Ser.

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“…Capelin and Arctic cod are important in subsistence fisheries (George et al, 2009) and as prey for other fishes, marine mammals, and seabirds (Watts and Draper, 1986;Bogstad and Gjøsaeter, 2001;Cherel et al, 2001). Use of the nearshore Chukchi Sea by fish, particularly by capelin and Arctic cod, demonstrates the importance of understanding and protecting this habitat from anthropogenic impacts such as oil and gas exploration.…”

Section: Discussionmentioning

confidence: 99%

Nearshore Fish Assemblages of the Northeastern Chukchi Sea, Alaska

Thedinga¹,

Johnson²,

Neff³

et al. 2013

ARCTIC

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ABSTRACT. The Arctic ecosystem is changing rapidly, yet information on nearshore fish assemblages for the northeastern Chukchi Sea is extremely limited. To address this information gap, we sampled nearshore fish assemblages with a beach seine and a small bottom trawl at six stations in the northeastern Chukchi Sea in August 2007, 2008, and in September 2009. Catch and species composition differed by gear type and between sample periods, including the two in 2009. A total of 16 039 fish representing 18 species were captured in 24 beach seine hauls, and 3108 fish representing 24 species were captured in 48 trawl tows. Beach seine catch was dominated by capelin (83%), and trawl catch was dominated by Arctic cod (56%). Species that were good discriminators between gear types were capelin (seine) and slender eelblenny (trawl), and unidentified small sculpins were the most common taxa caught with both gear types. Capelin and Arctic cod captured by either gear type were mostly juveniles (judging by size). Variability among sampling periods in catch and species composition within gear types can likely be attributed to annual variations in environmental conditions, including differences in water temperature (range: 2˚ -9˚C). The shallow nearshore environment of the northeastern Chukchi Sea provides important habitat for many fish species and is extremely vulnerable to disturbance. Loss of sea ice from global warming may open up formerly inaccessible areas to oil and gas exploration, vessel traffic, and commercial fishing. Thus, long-term monitoring of nearshore fish assemblages in the Alaskan Arctic is necessary for managers to make informed decisions in this fragile environment. Le milieu sublittoral peu profond du nord-est de la mer des Tchouktches est un habitat important pour de nombreuses espèces de poissons et est extrêmement vulnérable aux perturbations. La perte de glace de mer attribuable au réchauffement planétaire risque d'ouvrir des zones anciennement inaccessibles à l'exploration pétrolière et gazière, à la circulation d'embarcations et à la pêche commerciale. Par conséquent, la surveillance à long terme des assemblages de poissons du sublittoral de la partie alaskienne de l'Arctique s'impose pour que les gestionnaires puissent prendre des décisions éclairées dans cet environnement fragile.Mots clés : Arctique, Alaska, mer des Tchouktches, sublittoral, morue polaire, capelan, senne de plage, chalut de fond Traduit pour la revue Arctic par Nicole Giguère.

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“…In many areas, sandeels (Ammodytes) are a major prey fish for Fulmars, especially in the breeding season (Furness & Todd 1984;Fowler & Dye 1987;Thompson et al 1995;Hamer et al 1997;Phillips et al 1999). In more northern locations during the breeding season, Capelin Mallotus villosus is often found to be a major fish prey (Camphuysen & van Franeker 1997;Cherel et al 2001;Garthe et al 2004). In the Barents Sea during winter, Cod Gadus morhua and Polar Cod Boreogadus saida were found to be important prey species (Erikstad 1990;Weslawski et al 1994).…”

Section: Discussionmentioning

confidence: 99%

“…Fulmars are surface-feeding birds, with recorded diving depths normally of less than 1 m, with extremes probably up to c. 3 m (Hobson & Welch 1992;. Cherel et al (2001) suggest extremes of up to 4.7 m but used simple gauges intended for recording deeper dives and inaccurate at repeated shallow depths (Burger & Wilson 1988). Studies in other regions, however, have shown that myctophids can be seized directly by surface-feeding fulmarines (Coria et al 1997;Gould et al 1997;Ferretti et al 2001).…”

Section: Discussionmentioning

confidence: 99%

Preponderance of mesopelagic fish in the diet of the Northern Fulmar Fulmarus glacialis around the Faroe Islands

Danielsen,

van Franeker,

Olsen

et al. 2010

Seabird

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The Northern Fulmar Fulmarus glacialis is the most abundant seabird species on the Faroe Islands and is a significant consumer of marine resources. This diet study over the period 1998–2004 showed that fish was their major food source, supplemented with squid (Teuthida), polychaetes (Polychaeta), crustaceans (Crustacea) and scavenged prey. Among the fish, the small, lipid-rich Myctophid Glacier Lanternfish Benthosema glaciale dominated in frequency of occurrence and number of otoliths. Other common fish species were Norway Pout Trisopterus esmarkii, Blue Whiting Micromesistius poutassou, and Gadidae. Myctophic fish mostly occur in deeper water layers, and their high abundance in a surface feeding seabird is remarkable. As B. glaciale is not commercially exploited around the Faroes, competition between fisheries and Northern Fulmars appears limited.

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Capelin (Mallotus villosus) as an important food source for northern fulmars (Fulmarus glacialis) breeding at Bjørnøya (Bear Island), Barents Sea

Cited by 9 publications

References 39 publications

Modeled distribution and abundance of a pelagic seabird reveal trends in relation to fisheries

Modeled distribution and abundance of a pelagic seabird reveal trends in relation to fisheries

Nearshore Fish Assemblages of the Northeastern Chukchi Sea, Alaska

Preponderance of mesopelagic fish in the diet of the Northern Fulmar Fulmarus glacialis around the Faroe Islands

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