Fakultet for biovitenskap, fiskeri og økonomi: Nye registreringer
Viser treff 1401-1420 av 5180
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Informing a conservation policy-praxis disjuncture: A ‘commons’ perspective to tackling coastal-marine community-conserved area implementation in South Africa
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-19)Conventional ‘people-free’ conservation often fails to deliver both social and ecological outcomes. Communitybased conservation (CBC) – which is underpinned by local community participation, knowledge and priorities – offers a viable alternative in certain contexts. We explore the applicability of established ‘commons’ design principles, and factors enabling community-based conservation, to ... -
Stable Isotope Trajectory Analysis (SITA): A new approach to quantify and visualize dynamics in stable isotope studies
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12-16)Ecologists working with stable isotopes have to deal with complex datasets including temporal and spatial replication, which makes the analysis and the representation of patterns of change challenging, especially at high resolution. Due to the lack of a commonly accepted conceptual framework in stable isotope ecology, the analysis and the graphical representation of stable isotope spatial and ... -
Revision of the 'dragon-head' cusk eels of the genus Porogadus (Teleostei: Ophidiidae), with description of eight new species and one new genus
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-03)The ophidiid genus Porogadus occurs between 800 and 5300 m in the tropical and subtropical world oceans. Fifteen nominal species have been described since 1878 and most of them until 1902. The genus has been highlighted as needing revision in recent compilations about ophidiiforms and here we present the first comprehensive review. Twelve of the previously described species are here accepted as valid ... -
Distribution and Habitat Suitability of Ross Seals in a Warming Ocean
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-13)Understanding the determinants of poorly studied species’ spatial ecology is fundamental to understanding climate change impacts on those species and how to effectively prioritise their conservation. Ross seals (Ommatophoca rossii) are the least studied of the Antarctic pinnipeds with a limited knowledge of their spatial ecology. We present the largest tracking study for this species to date, create ... -
Winters are changing: snow effects on Arctic and alpine tundra ecosystems
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-18)Snow is an important driver of ecosystem processes in cold biomes. Snow accumulation determines ground temperature, light conditions and moisture availability during winter. It also affects the growing season’s start and end, and plant access to moisture and nutrients. Here, we review the current knowledge of the snow cover’s role for vegetation, plant-animal interactions, permafrost conditions, ... -
Gerald Lincoln: A man for all seasons
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-04)Gerald Anthony Lincoln died after a short illness on 15 July 2020 at the age of 75 years. Gerald was Emeritus Professor of Biological Timing at Edinburgh University and a Fellow of the Royal Society of Edinburgh. He was an outstanding scientist and naturalist who was a seminal figure in developing our understanding of the neuroendocrine mechanisms underlying seasonal rhythmicity. This review considers ... -
Marine artificial light at night: An empirical and technical guide
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-04)1. The increasing illumination of our world by artificial light at night (ALAN) has created a new field of global change research with impacts now being demonstrated across taxa, biological ranks and spatial scales. Following advances in terrestrial ecology, marine ALAN has become a rapidly growing research area attracting scientists from across all biomes. Technological limitations, complexities ... -
History of the Larsen C Ice Shelf reconstructed from sub–ice shelf and offshore sediments
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-28)Because ice shelves respond to climatic forcing over a range of time scales, from years to millennia, an understanding of their long-term history is critically needed for predicting their future evolution. We present the first detailed reconstruction of the Larsen C Ice Shelf (LCIS), eastern Antarctic Peninsula (AP), based on data from sediment cores recovered from below and in front of the ice ... -
Webcams as a Remote Tool for Eco-ethological Research: A Study on the Alpine Chough
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-02)Methods and devices specifically created for remote animal surveys and monitoring are becoming increasingly popular and effective. However, remote devices are also widely used in our societies for different, not scientific, goals. Ski resorts in the European Alps, for instance, use webcams to share panoramic views and promote themselves in the industry of winter recreational activities. We tested ... -
Prospects for Valuation in Marine Decision Making in Europe
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12)There is now high-level recognition that the UN Sustainable Development Goals can only be achieved if the decline of ecosystems and biodiversity can be halted and reversed. This will require effective control of ongoing pressures, meaningful protection and enforcement of protected areas, and significant investments in ecosystem restoration. This paper explores the possible use of economic valuation ... -
Efficiency in Chinese large yellow croaker aquaculture: Implication for sustainable aquaculture in China
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12-17)Aquaculture supply from China has been a remedy to meet the growing global demand for seafood in the last decades. However, output growth has decreased dramatically in China in the 2000s. Previous literature focuses on the ecosystem problems arising in intensive farming in China. In this study, we used stochastic production analysis (SPA) to estimate the technical efficiency of Chinese large ... -
The Arctic Nearshore Turbidity Algorithm (ANTA) - A multi sensor turbidity algorithm for Arctic nearshore environments
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-15)The Arctic is greatly impacted by climate change. The increase in air temperature drives the thawing of permafrost and an increase in coastal erosion and river discharge. This leads to a greater input of sediment and organic matter into coastal waters, which substantially impacts the ecosystems by reducing light transmission through the water column and altering the biogeochemistry, but also the ... -
Year-round distribution of Northeast Atlantic seabird populations: applications for population management and marine spatial planning
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021)Tracking data of marine predators are increasingly used in marine spatial management. We developed a spatial data set with estimates of the monthly distribution of 6 pelagic seabird species breeding in the Northeast Atlantic. The data set was based on year-round global location sensor (GLS) tracking data of 2356 adult seabirds from 2006−2019 from a network of seabird colonies, data describing the ... -
Assessing the Value of a Citizen Science Approach for Ctenophore Identification
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-19)During the era of biodiversity loss, a complete species census and understanding where the different species occur is of high priority. Even though this knowledge has increased tremendously, mainly with expanded use of integrated taxonomic identification, there are groups where our knowledge is very limited, both in terms of diversity and distribution. Ctenophores are such a group. Due to a lack of ... -
Application of machine learning to predict visitors’ green behavior in marine protected areas: evidence from Cyprus
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-03-10)Interpretive marine turtle tours in Cyprus yields an alluring ground to unfold the complex nature of pro-environmental behavior among travelers in nature-based destinations. Framing on Collins (2004) interaction ritual concept and the complexity theory, the current study proposes a configurational model and probes the interactional effect of visitors’ memorable experiences with environmental ... -
A multi-region and multi-period harvest schedule of the trawl fleet
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-21)Under the individual vessel quota regulations, the expected economic return of a multi species fishery is influenced by an array of a multi-component choice such as targeted species, landings per haul, harvesting time and its location. The components of effort allocation decisions are further complicated by changes in the market conditions and the constant movements of fish between spawning and ... -
The “Well-Being” and “Ill-Being” of Online Impulsive and Compulsive Buying on Life Satisfaction: The Role of Self-Esteem and Harmony in Life
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-25)The antecedents and implications of shopping are relevant to impulsive and compulsive buying behaviour, because both tendencies can be harmful to an individual’s well-being, ill-being, and for society as regards overconsumption and sustainability. Most studies investigating either impulsive or compulsive buying have used different definitions and operationalisations of the two constructs. It is ... -
Effect of chrysophanic acid on immune response and immune genes transcriptomic profile in Catla catla against Aeromonas hydrophila
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-01-12)The effect of chrysophanic acid (CA) (2, 4, and 8 mg kg<sup>−1</sup>) on the immunity and immune-related gene profile of Catla catla against Aeromonas hydrophila is reported. In both control and treated groups fed with 2 mg kg<sup>−1</sup> (2 CA), the phagocytosis, hemolytic, myeloperoxidase content, and superoxide anion production decreased significantly between 6th and 8th weeks, whereas when fed ... -
Long-term welfare effects of repeated warm water treatments on Atlantic salmon (Salmo salar)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-30)Warm water treatment has in recent years become widely used for ridding salmonids of sea lice in aquaculture although the consequences of the treatment for fish welfare are not adequately investigated. The objective of this study was to document potential long-term welfare effects of repeated warm water treatments on Atlantic salmon (Salmo salar). Five weeks after a baseline welfare indicator ... -
Secretome Profiling of Atlantic Salmon Head Kidney Leukocytes Highlights the Role of Phagocytes in the Immune Response to Soluble β-Glucan
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-30)b‐Glucans (BG) are glucose polymers which are produced in bacteria and fungi but not in vertebrate organisms. Being recognized by phagocytic leukocytes including macrophages and neutrophils through receptors such as dectin-1 and Complement receptor 3 (CR3), the BG are perceived by the innate immune system of vertebrates as foreign substances known as Pathogen Associated Molecular Patterns (PAMPs). ...