An overview of the ecosystems of the Barents and Norwegian Seas and their response to climate variability

Loeng, Harald; Drinkwater, Ken

doi:10.1016/j.dsr2.2007.08.013

Cited by 166 publications

(107 citation statements)

References 75 publications

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“…In particular, the region supports some of the world's largest stocks of NA cod, as well as Norwegian spring-spawning herring (Clupea harengus L.) and capelin (Loeng and Drinkwater, 2007). The eggs and larvae of all three species are spawned close to the Norwegian coastline and transported northwards via the Norwegian Coastal Current to the nursery grounds in the Barents Sea and near Svalbard.…”

Section: Climate-fish Interactions In the Study Regionmentioning

confidence: 99%

Cross-scale Adaptation Challenges in the Coastal Fisheries: Findings from Lebesby, Northern Norway

West¹,

Hovelsrud²

2010

ARCTIC

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AbstrACt. Cross-scale adaptation challenges in the coastal fisheries in Lebesby municipality, Finnmark County, northern Norway are examined on the basis of fieldwork conducted there. Although fishery actors in Lebesby are aware of, experience, and describe a number of connections between climate variability and coastal fishing activities, they do not characterize their livelihoods as being particularly vulnerable to climate change. Nevertheless, they identify a range of social factors that shape the flexibility of coastal fishing activities and livelihoods to deal with changing environmental conditions. We argue that these factors, and actors' perceptions of their own resilience, constitute important aspects of adaptive capacity and may challenge local responses to climate variability and change. We identified four adaptation arenas: local perceptions of vulnerability and resilience to climate change, Lebesby's social and economic viability, national fishery management and regulations, and the markets and economy of coastal fishing. The adaptation arenas arise and interact across geographic and temporal scales, creating specific barriers and opportunities for local adaptation. Our findings suggest the need to pay close attention to the cross-scale adaptation challenges facing Arctic communities that depend on natural resources. The concept of adaptation arenas helps to illustrate these challenges and should be applied more widely.Key words: coastal fisheries, northern Norway, Barents Sea, vulnerability, adaptive capacity, climate change, local perceptions, coastal communities, adaptation arenas, scale rÉsuMÉ. Les défis d'adaptation à plusieurs échelles dans le secteur des pêches côtières de la municipalité de Lebesby dans le comté de Finnmark, nord de la Norvège, sont examinés en fonction des études sur le terrain qui y ont été réalisées. Bien que les parties prenantes du secteur des pêches de Lebesby soient conscientes de l'existence d'un certain nombre de liens entre la variabilité du climat et les activités de pêche côtière, elles n'affirment pas que leur gagne-pain est particulièrement vulnérable au changement climatique. Elles dénotent néanmoins une série de facteurs sociaux qui exercent une influence sur la flexibilité des activités de pêche côtière et le gagne-pain afin de faire face aux conditions environnementales en pleine évolution. Nous soutenons que ces facteurs, de même que les perceptions des parties prenantes quant à leur propre résilience, constituent des aspects importants de la capacité d'adaptation et qu'ils peuvent mettre au défi les réactions locales en matière de variabilité et de changement climatique. Nous avons repéré quatre sphères d'adaptation, soit les perceptions locales de la vulnérabilité et de la résilience au changement climatique, la viabilité économique et sociale de Lebesby, l'administration et la réglementation nationales concernant les pêches de même que les marchés et l'économie de la pêche côtière. Les sphères d'adaptation se manifestent et interagissent à la grandeur des...

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Section: Climate-fish Interactions In the Study Regionmentioning

confidence: 99%

Cross-scale Adaptation Challenges in the Coastal Fisheries: Findings from Lebesby, Northern Norway

West¹,

Hovelsrud²

2010

ARCTIC

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“…(1 (Rey 2004;Loeng & Drinkwater 2007). Assuming that a minimum of 6% F A,P is excreted as DOC (Moran et al 2005) would give an F A,E of up to 30 mg C m…”

Section: Atlantic-influenced Shelvesmentioning

confidence: 99%

Responses in Arctic marine carbon cycle processes: conceptual scenarios and implications for ecosystem function

Findlay¹,

Gibson²,

Kędra³

et al. 2015

Polar Research

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“…Amongst the Arctic tipping elements, zooplankton play a fundamental role in food webs, linking primary producers and microheterotrophs with large consumers (Hjort, 1914;Tande and Båmstedt, 1985;Loeng and Drinkwater, 2007), modulating by grazing and respiration the final destination of biogenic carbon (Hirche et al, 1991;Olli et al, 2007), and contributing via excretion to regenerate the nutrient pool available for phytoplankton (Sterner, 1990;Alcaraz et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Effects of temperature on the metabolic stoichiometry of Arctic zooplankton

et al. 2013

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We assessed the relationship between zooplankton metabolism (respiration and inorganic N and P excretion) and "in situ" temperature through a grid of stations representing a range of natural temperature variation during the ATOS-Arctic cruise (July 2007). The objective was to explore not only the direct effects of temperature on zooplankton carbon respiratory losses (hereafter CR) and NH4-N and PO4-P excretion rates (hereafter NE and PE, respectively), but also to investigate whether these metabolic pathways responded similarly to temperature, and so how temperature could affect the stoichiometry of the metabolic products. Metabolic rates, normalised to per unit of zooplankton carbon biomass, increased with increasing temperature following the Arrhenius equation. However, the activation energy differed for the various metabolic processes considered. Respiration, CR, was the metabolic activity least affected by temperature, followed by NE and PE, and as a consequence the values of the CR : NE, CR : PE and NE : PE atomic quotients were inversely related to temperature. The effects of temperature on the stoichiometry of the excreted N and P products would contribute to modifying the nutrient pool available for phytoplankton and induce qualitative and quantitative shifts in the size, community structure and chemical composition of primary producers that could possibly translate to the whole Arctic marine food web

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An overview of the ecosystems of the Barents and Norwegian Seas and their response to climate variability

Cited by 166 publications

References 75 publications

Cross-scale Adaptation Challenges in the Coastal Fisheries: Findings from Lebesby, Northern Norway

Cross-scale Adaptation Challenges in the Coastal Fisheries: Findings from Lebesby, Northern Norway

Responses in Arctic marine carbon cycle processes: conceptual scenarios and implications for ecosystem function

Effects of temperature on the metabolic stoichiometry of Arctic zooplankton

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