Consulta: creatorFacets:"Strand, Oivind"
Registros recuperados: 16
Data/hora: 03/06/2024 17:53:07

Report on the ICES Working Group on Marine Shellfish culture (WGMASC), 7-9 April 2009, Bremerhaven, Germany
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Kamermans, Pauline; Buck, Bela; Bodoy, Alain; Brenner, Mathias; Cranford, Peter; Fraser, David; Krause, Gesche; Van Nieuwenhove, Kris; Strand, Oivind.
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00041/15202/12529.pdf

Spatial, Ecological and Social Dimensions of Assessments for Bivalve Farming Management
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Bacher, Cedric; Gangnery, Aline; Cugier, Philippe; Mongruel, Remi; Strand, Oivind; Frangoudes, Katia.
The general purpose of assessment is to provide decision-makers with the best valuable data, information, and predictions with which management decisions will be supported. Using case studies taken from four scientific projects and dealing with the management of marine bivalve resources, lessons learned allowed identifying some issues regarding assessment approaches. The selected projects also introduced methodological or institutional frameworks: ecosystem approach to aquaculture (EAA), system approach framework (SAF), marine spatial planning (MSP), and valuation of ecosystem services (ES). The study on ecosystem services linked ES to marine habitats and identified ES availability and vulnerability to pressures. The results were displayed as maps of...
Tipo: Text
Palavras-chave: Ecosystem services; Marine spatial planning; Ecosystem approach to aquaculture; System approach; Modeling; Stakeholder involvement.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00470/58138/60608.pdf

Modelling growth variability in longline mussel farms as a function of stocking density and farm design
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Rosland, Rune; Bacher, Cedric; Strand, Oivind; Aure, Jan; Strohmeier, Tore.
Mussels (Mytilus edulis) are commonly cultivated on artificial structures like rafts, poles or longlines to facilitate farming operations. Farm structures and dense mussel populations may result in water flow reduction and seston depletion and thus reduced individual mussel growth and spatial growth variability inside a farm. One of the challenges in mussel farming is thus to scale and configure farms in order to optimise total mussel production and individual mussel quality under different environmental regimes. Here we present a spatially resolved model for simulation of flow reduction, seston depletion and individual mussel growth inside a longline farm based on information about farm configuration (spacing between longlines, farm length and stocking...
Tipo: Text
Palavras-chave: Longline farm configuration; Environmental conditions; Flow reduction; Seston depletion; Spatial growth variability.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00038/14887/12210.pdf

Action concertée sur les semis de coquille Saint-Jacques en Europe (1993-1996)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Fleury, Pierre-gildas; Dao, Jean-claude; Mikolajunas, John-paul; Minchin, Daniel; Norman, Mark; Strand, Oivind.
Faced with the decline of scallop {Pecten maximus) fisheries and high costs of ongrowing in suspension, scallop seabed cultivation appeared to be the most suitable technique for European conditions. A three-year European Concerted Action supported by European Union and Norway (associated country) joined together four teams involved in scallop seedings : - IFREMER Brest / laboratory Molluscs, in Brittany (France), a national institute of ocean research (co-ordinator of the Concerted Action) ; - Connemara Shellfish Co-op, in Connemara, County of Galway (Ireland), a fishermen's co-operative ; - Seafish Ardtoe, in Scotland (United Kingdom), an institute provided by the fishing industry ; - Institute of Marine Research, in Bergen (Norway), a national institute...
Tipo: Text
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/rapport-2451.pdf

New insights into the seasonal feeding ecology of Pecten maximus using pigments, fatty acids and sterols analyses
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Lavaud, Romain; Artigaud, Sebastien; Le Grand, Fabienne; Donval, Anne; Soudant, Philippe; Flye-sainte-marie, Jonathan; Strohmeier, Tore; Strand, Oivind; Leynaert, Aude; Beker, Beatriz; Chatterjee, Arnab; Jean, Fred.
We combined the use of pigments, fatty acids and sterols as biomarkers of the seasonal variation in food sources of the great scallop Pecten maximus. From March to October 2011, on a biweekly to twice-weekly basis, scallops and seawater from the water column and the water-sediment interface were collected in the Bay of Brest (Brittany, France). Pigment compositions in the seawater and in the stomach and rectum content of the scallops were analyzed by HPLC. Fatty acids and sterols from digestive gland (DG) tissue were analyzed by gas chromatography. Potential relationships between the temporal proportion of each marker in the environment and in the digestive tract were tested using multivariate analysis. Proportions of diatoms and Dinophyceae biomarkers...
Tipo: Text
Palavras-chave: Trophic ecology; Food sources; Pigments; Fatty acids; Trophic marker; Phytoplankton; Pecten maximus.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00431/54244/55772.pdf

Progressing aquaculture through virtual technology and decision-support tools for novel management
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Ferreira, Joao Gomez; Aguilar-manjarrez, José; Bacher, Cedric; Black, Kenny; Dong, S.l.; Grant, Jon; Hofmann, Eileen E.; Kapetsky, Jim; Leung, P.s.; Pastres, Roberto; Strand, Oivind; Zhu, C.b.
Attention is presently turning to the processes, methods and tools that allow the principles of the ecosystem approach to aquaculture to be translated into practical implementation. An essential element for this is the use of virtual technology and decision-support tools, particularly if developing nations are to implement the key elements of aquaculture sustainability. We provide an overview of current and emerging issues and trends related to this topic over the past decade, an assessment of progress with regard to the expectations and commitments expressed in the Bangkok Declaration and conclude with some thoughts for the future.
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00086/19747/17387.pdf

Variation in Size and Growth of the Great Scallop Pecten maximus along a Latitudinal Gradient
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Chauvaud, Laurent; Patry, Yann; Jolivet, Aurelie; Cam, Emmanuelle; Le Goff, Clement; Strand, Oivind; Charrier, Gregory; Thebault, Julien; Lazure, Pascal; Gotthard, Karl; Clavier, Jacques.
Understanding the relationship between growth and temperature will aid in the evaluation of thermal stress and threats to ectotherms in the context of anticipated climate changes. Most Pecten maximus scallops living at high latitudes in the northern hemisphere have a larger maximum body size than individuals further south, a common pattern among many ectotherms. We investigated differences in daily shell growth among scallop populations along the Northeast Atlantic coast from Spain to Norway. This study design allowed us to address precisely whether the asymptotic size observed along a latitudinal gradient, mainly defined by a temperature gradient, results from differences in annual or daily growth rates, or a difference in the length of the growing...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00087/19861/17506.pdf

A DEB based analysis of growth and toxin elimination processes in mussels (Mytilus edulis) exposed to Diarrhetic Shellfish Toxins (DST)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Rosland, Rune; Alunno-bruscia, Marianne; Duinker, Arne; Strand, Oivind; Strohmeier, Tore.
A Dynamic Energy Budget(DEB) model was used to analyse growth and toxin elimination processes in musselsthat had been exposed to Diarrhetic Shellfish Toxins (DST). After DST exposure mussels were placed inan experimentalin-situ setup, expected to have low concentrations of toxic phytoplankton, and DST concentrations in mussel tissueswere regularly monitored along with temperature and seston concentration and composition in the water. A one-compartment model for DST concentrations and elimination rate was integrated with the DEB model, assuming that storage and structural compartments absorb DST. The model was used to simulate growth and toxin elimination rates from mussel tissues. Toxin elimination rate was obtained by a calibration between observed and...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00148/25936/24001.pdf

Genetic structure of a commercially exploited bivalve, the great scallop Pecten maximus, along the European coasts
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Morvezen, Romain; Charrier, Gregory; Boudry, Pierre; Chauvaud, Laurent; Breton, Florian; Strand, Oivind; Laroche, Jean.
The great scallop Pecten maximus is harvested in several European countries and fisheries targeting this species are severely regulated by fishing quotas. In addition, hatchery-based population enhancement has been developed in some countries to provide alternative or complementary production. The genetic structure of wild populations of P. maximus and the potential impact of aquaculture on the genetic diversity of this species remains poorly documented. In this study, we explored the genetic structure of P. maximus using 12 microsatellite markers, considering 14 populations sampled from Galicia (Spain) to the North of Norway, and one population of Pecten jacobaeus (L., 1758) from the Lion Gulf (Mediterranean Sea). Results indicated a clear differentiation...
Tipo: Text
Palavras-chave: Great scallop; Pecten maximus; Microsatellites; Population genetics; Aquaculture.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00311/42251/41692.pdf

Une application dynamique sous système d'information géographique pour la planification spatiale des activités aquacoles en Normandie
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Gangnery, Aline; Le Gendre, Romain; Picoche, Coralie; Petton, Sebastien; Bacher, Cedric; Alunno-bruscia, Marianne; You, Junyong; Hageberg, Anne; Strand, Oivind.
La conchyliculture représente une activité importante en Normandie et doit faire face à de sérieuses difficultés (mortalités, diminution de la qualité des produits). Un enjeu actuel concerne la réorganisation des zones d’élevage existantes afin d’optimiser les performances. A contrario, la pisciculture marine est très peu présente dans cette région et il existe un réel enjeu de développement économique. Dans ce contexte, les décideurs (services de l’Etat) et les professionnels ont besoin d’identifier des sites propices à la réalisation de ces activités qui soient également compatibles avec les nombreux autres usages du littoral. Au sein du projet SISQUONOR, un démonstrateur sous Système d’Information Géographique, nommé AkvaVis et développé originellement...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00307/41773/40988.pdf

Attraction and repulsion of mobile wild organisms to finfish and shellfish aquaculture: a review
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Callier, Myriam; Byron, Carrie J.; Bengtson, David A.; Cranford, Peter J.; Cross, Stephen F.; Focken, Ulfert; Jansen, Henrice M.; Kamermans, Pauline; Kiessling, Anders; Landry, Thomas; O'Beirn, Francis; Petersson, Erik; Rheault, Robert B.; Strand, Oivind; Sundell, Kristina; Svasand, Terje; Wikfors, Gary H.; Mckindsey, Christopher W.
Knowledge of aquaculture–environment interactions is essential for the development of a sustainable aquaculture industry and efficient marine spatial planning. The effects of fish and shellfish farming on sessile wild populations, particularly infauna, have been studied intensively. Mobile fauna, including crustaceans, fish, birds and marine mammals, also interact with aquaculture operations, but the interactions are more complex and these animals may be attracted to (attraction) or show an aversion to (repulsion) farm operations with various degrees of effects. This review outlines the main mechanisms and effects of attraction and repulsion of wild animals to/from marine finfish cage and bivalve aquaculture, with a focus on effects on fisheries-related...
Tipo: Text
Palavras-chave: Aquaculture; Artificial reefs; Attraction; Farm waste; Fish aggregating devices; Repulsion; Wild population.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00406/51737/52435.pdf

Response of Mytilus edulis to enhanced phytoplankton availability by controlled upwelling in an oligotrophic fjord
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Strohmeier, Tore; Strand, Oivind; Alunno-bruscia, Marianne; Duinker, Arne; Rosland, Rune; Aure, Jan; Erga, Svein R.; Naustvoll, Lars J.; Jansen, Henrice M.; Cranford, Peter J.
The controlled upwelling of nutrient-rich deep water in oligotrophic coastal regions has been proposed as a means of increasing phytoplankton and, subsequently, bivalve aquaculture production. This was tested as part of a large-scale upwelling experiment in an oligotrophic environment (Lysefjord, Norway). The mean chlorophyll a concentration in the upwelling area was consistently higher than at the control site (mean ± SD: 3.3 ± 1.9 and 1.5 ± 0.6 mg Chl a m-3, respectively) during the 4 mo of controlled upwelling. After 2 mo with upwelling, the dry flesh weight of 1 yr-old and 2 yr-old mussels was 95% and 24% higher, respectively, than that of the mussels at the control site. The 1 yr-old mussels at the upwelling site achieved up to 2.4-fold higher dry...
Tipo: Text
Palavras-chave: Bivalve aquaculture; Production carrying capacity; Physiology; Fjord ecosystems; Shell growth; Tissue growth.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00241/35200/33704.pdf

Impacts of ocean acidification and warming stress on juvenile growth and metabolism in two populations of Pecten maximus
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Harney, Ewan; Rastrick, Samuel; Artigaud, Sébastien; Pisapia, Julia; Miner, Philippe; Pichereau, Vianney; Strand, Oivind; Boudry, Pierre; Charrier, Gregory.
Elevated atmospheric CO2 is a major driver of global change in the ocean, causing sea surface temperatures to rise and acidification of marine environments. Together these stressors may have additive, synergistic or unforeseen consequences for many marine organisms, particularly during early life stages. The economically important King Scallop (Pecten maximus) is found along a large latitudinal gradient in the Eastern Atlantic, but it is unclear how this species will respond to changing environmental conditions. Studies of genetic structure suggest that Atlantic populations (from Spain to the UK) are genetically distinct from Norwegian populations, a result that is borne out by phenotypic differences. Yet whether genetic differences arise as a result of...
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00404/51520/52114.pdf

Variability in particle retention efficiency by the mussel Mytilus edulis
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Strohmeier, Tore; Strand, Oivind; Alunno-bruscia, Marianne; Duinker, Arne; Cranford, Peter J.
Seasonal variation in blue mussel, Mytilus edulis, retention efficiency (RE) responses to natural seston concentrations were investigated in the Lysefjord, Norway. The smallest particles shown to be effectively retained (100%) were approximately 7 μm and this was observed on only one occasion. The most common response was for RE to progressively increase from small to large particles with maximum RE at 30 to 35 μm (8 of 12 experiments). Temporal changes in the seston size distribution towards a dominance of smaller particles coincided with a decrease in the RE maxima to particles between 7 and 15 μm diameter. The RE of 1 μm and 4 μm diameter particles ranged between 14–64% and 12–86%, respectively, showing that small particles occasionally serve as a...
Tipo: Text
Palavras-chave: Bivalve feeding physiology; Retention efficiency; Clearance rate; Marine ecophysiology; Seston; Suspension feeding; Mytilus edulis.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00054/16509/14024.pdf

An ecosystem-based approach and management framework for the integrated evaluation of bivalve aquaculture impacts
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Cranford, Peter J.; Kamermans, Pauline; Krause, Gesche; Mazurie, Joseph; Buck, Bela H.; Dolmer, Per; Fraser, David; Van Nieuwenhove, Kris; O'Beirn, Francis X.; Sanchez-mata, Adoracion; Thorarinsdottir, Gudrun G.; Strand, Oivind.
An ecosystem-based approach to bivalve aquaculture management is a strategy for the integration of aquaculture within the wider ecosystem, including human aspects, in such a way that it promotes sustainable development, equity, and resilience of ecosystems. Given the linkage between social and ecological systems, marine regulators require an ecosystem-based decision framework that structures and integrates the relationships between these systems and facilitates communication of aquaculture-environment interactions and policy-related developments and decisions. The Drivers-Pressures-State Change-Impact-Response (DPSIR) management framework incorporates the connectivity between human and ecological issues and would permit available performance indicators to...
Tipo: Text
Palavras-chave: Bivalve aquaculture management; Ecosystem-based approach; DPSIR framework; Indicators; Thresholds; Benthic effects; Pelagic effects; Social-ecological systems.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00099/20997/18624.pdf

Feeding and energetics of the great scallop, Pecten maximus, through a DEB model
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Lavaud, Romain; Flye-sainte-marie, Jonathan; Jean, Fred; Emmery, Antoine; Strand, Oivind; Kooijman, Sebastiaan A. L. M.
We developed a full life-cycle bioenergetic model for the great scallop P. maximusrelying on the concepts of the Dynamic Energy Budget (DEB) theory. The covariation method was implemented to estimate the parameters of a standard DEB model. Such models are able to predict various metabolic processes from a food availability marker and temperature in the environment. However, suspension-feeders are likely to feed on various trophic sources, from microalgae cells to detritus. They are also able to sort and select food particles very efficiently, depending on their size, energetic value or quality. The present model includes a mechanistic description of the feeding processes, based on Kooijman’s Synthesizing Unit principle which allow to deal with several food...
Tipo: Text
Palavras-chave: Pecten maximus; DEB theory; Synthesizing Units; Phytoplankton; Feeding process; Bay of Brest.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00162/27316/28458.pdf