Consulta: creatorFacets:"Shin, Yunne-jai"
Registros recuperados: 28
Data/hora: 11/06/2024 00:44:18

Combined Fishing and Climate Forcing in the Southern Benguela Upwelling Ecosystem: An End-to-End Modelling Approach Reveals Dampened Effects
Provedor de dados: 5
Autores: Travers-trolet, Morgane; Shin, Yunne-jai; Shannon, Lynne J.; Moloney, Coleen L.; Field, John G.
The effects of climate and fishing on marine ecosystems have usually been studied separately, but their interactions make ecosystem dynamics difficult to understand and predict. Of particular interest to management, the potential synergism or antagonism between fishing pressure and climate forcing is analysed in this paper, using an end-to-end ecosystem model of the southern Benguela ecosystem, built from coupling hydrodynamic, biogeochemical and multispecies fish models (ROMS-N2P2Z2D2-OSMOSE). Scenarios of different intensities of upwelling-favourable wind stress combined with scenarios of fishing top-predator fish were tested. Analyses of isolated drivers show that the bottom-up effect of the climate forcing propagates up the food chain whereas the...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00186/29741/28166.pdf

Linking Capacity Development to GOOS Monitoring Networks to Achieve Sustained Ocean Observation
Provedor de dados: 5
Autores: Bax, Nicholas J.; Appeltans, Ward; Brainard, Russell; Duffy, J. Emmett; Dunstan, Piers; Hanich, Quentin; Davies, Harriet Harden; Hills, Jeremy; Miloslavich, Patricia; Muller-karger, Frank Edgar; Simmons, Samantha; Aburto-oropeza, O.; Batten, Sonia; Benedetti-cecchi, Lisandro; Checkley, David; Chiba, Sanae; Fischer, Albert; Garcia, Melissa Andersen; Gunn, John; Klein, Eduardo; Kudela, Raphael M.; Marsac, Francis; Obura, David; Shin, Yunne-jai; Sloyan, Bernadette; Tanhua, Toste; Wilkin, John.
Developing enduring capacity to monitor ocean life requires investing in people and their institutions to build infrastructure, ownership, and long-term support networks. International initiatives can enhance access to scientific data, tools and methodologies, and develop local expertise to use them, but without ongoing engagement may fail to have lasting benefit. Linking capacity development and technology transfer to sustained ocean monitoring is a win-win proposition. Trained local experts will benefit from joining global communities of experts who are building the comprehensive Global Ocean Observing System (GOOS). This two-way exchange will benefit scientists and policy makers in developing and developed countries. The first step toward the GOOS is...
Tipo: Text
Palavras-chave: Capacity development; Technology transfer; Global ocean observing system; GOOS; Monitoring; Essential ocean variables; International reporting; SDG14.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00626/73776/74930.pdf

An End-to-End Model Reveals Losers and Winners in a Warming Mediterranean Sea
Provedor de dados: 5
Autores: Moullec, Fabien; Barrier, Nicolas; Drira, Sabrine; Guilhaumon, François; Marsaleix, Patrick; Somot, Samuel; Ulses, Caroline; Velez, Laure; Shin, Yunne-jai.
The Mediterranean Sea is now recognized as a hotspot of global change, ranking among the fastest warming ocean regions. In order to project future plausible scenarios of marine biodiversity at the scale of the whole Mediterranean basin, the current challenge is to develop an explicit representation of the multispecies spatial dynamics under the combined influence of fishing pressure and climate change. Notwithstanding the advanced state-of-the-art modeling of food webs in the region, no previous studies have projected the consequences of climate change on marine ecosystems in an integrated way, considering changes in ocean dynamics, in phyto- and zoo-plankton productions, shifts in Mediterranean species distributions and their trophic interactions at the...
Tipo: Text
Palavras-chave: Biodiversity scenario; Climate change; Ecosystem model; End-to-end model; OSMOSE; Fishing; Mediterranean Sea.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00504/61557/65469.pdf

Trend analysis of indicators: a comparison of recent changes in the status of marine ecosystems around the world
Provedor de dados: 5
Autores: Blanchard, Julia L.; Coll, Marta; Trenkel, Verena; Vergnon, Remi; Yemane, Dawit; Jouffre, Didier; Link, Jason S.; Shin, Yunne-jai.
Time-series of ecological and exploitation indicators collected from 19 ecosystems were analysed to investigate whether there have been temporal trends in the status of fish communities. Using linear and non-linear statistical methods, trends are reported for six indicators (mean length of fish in the community, mean lifespan, proportion of predatory fish, total biomass of surveyed species, mean trophic level of landings, and inverse fishing pressure), and the redundancy of these indicators across ecosystems is evaluated. The expected direction of change for an ecosystem that is increasingly impacted by fishing is a decline in all indicators. A mixture of negative and positive directions of change is recorded, both within and among all ecosystems...
Tipo: Text
Palavras-chave: Community; Ecological indicators; Ecosystem-based fisheries management; Ecosystem effects of fishing; Natural resource management.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00002/11373/8166.pdf

Relationships among fisheries exploitation, environmental conditions, and ecological indicators across a series of marine ecosystems
Provedor de dados: 5
Autores: Fu, Caihong; Large, Scott; Knight, Ben; Richardson, Anthony J.; Bundy, Alida; Reygondeau, Gabriel; Boldt, Jennifer; Van Der Meeren, Gro I.; Torres, Maria A; Sobrino, Ignacio; Auber, Arnaud; Travers-trolet, Morgane; Piroddi, Chiara; Diallo, Ibrahima; Jouffre, Didier; Mendes, Hugo; Borges, Maria Fatima; Lynam, Christopher P.; Coll, Marta; Shannon, Lynne J.; Shin, Yunne-jai.
Understanding how external pressures impact ecosystem structure and functioning is essential for ecosystem-based approaches to fisheries management. We quantified the relative effects of fisheries exploitation and environmental conditions on ecological indicators derived from two different data sources, fisheries catch data (catch-based) and fisheries independent survey data (survey-based) for 12 marine ecosystems using a partial least squares path modeling approach (PLS-PM). We linked these ecological indicators to the total biomass of the ecosystem. Although the effects of exploitation and environmental conditions differed across the ecosystems, some general results can be drawn from the comparative approach. Interestingly, the PLS-PM analyses showed...
Tipo: Text
Palavras-chave: Ecological indicators; Environmental conditions; Fisheries exploitation; Marine ecosystems; Partial least squares path modeling.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00250/36155/34710.pdf

Evaluating changes in marine communities that provide ecosystem services through comparative assessments of community indicators
Provedor de dados: 5
Autores: Kleisner, Kristin M.; Coll, Marta; Lynam, Christopher P.; Bundy, Alida; Shannon, Lynne; Shin, Yunne-jai; Boldt, Jennifer L.; Borges, Maria F.; Diallo, Ibrahima; Fox, Clive; Gascuel, Didier; Heymans, Johanna J.; Juan Jorda, Maria J.; Jouffre, Didier; Large, Scott I.; Marshall, Kristin N.; Ojaveer, Henn; Piroddi, Chiara; Tam, Jorge; Torres, Maria A.; Travers-trolet, Morgane; Tsagarakis, Konstantinos; Van Der Meeren, Gro I.; Zador, Stephani.
Fisheries provide critical provisioning services, especially given increasing human population. Understanding where marine communities are declining provides an indication of ecosystems of concern and highlights potential conflicts between seafood provisioning from wild fisheries and other ecosystem services. Here we use the nonparametric statistic, Kendall׳s tau, to assess trends in biomass of exploited marine species across a range of ecosystems. The proportion of ‘Non-Declining Exploited Species’ (NDES) is compared among ecosystems and to three community-level indicators that provide a gauge of the ability of a marine ecosystem to function both in provisioning and as a regulating service: survey-based mean trophic level, proportion of predatory fish,...
Tipo: Text
Palavras-chave: Ecological indicator; Comparative approach; Community metric; IndiSeas; Fishing impacts.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00254/36555/35186.pdf

Exploring the usefulness of scenario archetypes in science-policy processes: experience across IPBES assessments
Provedor de dados: 5
Autores: Sitas, Nadia; Harmáčková, Zuzana V.; Anticamara, Jonathan A.; Arneth, Almut; Badola, Ruchi; Biggs, Reinette; Blanchard, Ryan; Brotons, Lluis; Cantele, Matthew; Coetzer, Kaera; Dasgupta, Rajarshi; Den Belder, Eefje; Ghosh, Sonali; Guisan, Antoine; Gundimeda, Haripriya; Hamann, Meike; Harrison, Paula A.; Hashimoto, Shizuka; Hauck, Jennifer; Klatt, Brian J.; Kok, Kasper; Krug, Rainer M.; Niamir, Aidin; O'Farrell, Patrick J.; Okayasu, Sana; Palomo, Ignacio; Pereira, Laura M.; Riordan, Philip; Santos-martín, Fernando; Selomane, Odirilwe; Shin, Yunne-jai; Valle, Mireia.
Scenario analyses have been used in multiple science-policy assessments to better understand complex plausible futures. Scenario archetype approaches are based on the fact that many future scenarios have similar underlying storylines, assumptions, and trends in drivers of change, which allows for grouping of scenarios into typologies, or archetypes, facilitating comparisons between a large range of studies. The use of scenario archetypes in environmental assessments foregrounds important policy questions and can be used to codesign interventions tackling future sustainability issues. Recently, scenario archetypes were used in four regional assessments and one ongoing global assessment within the Intergovernmental Science-Policy Platform for Biodiversity...
Tipo: Text
Palavras-chave: Assessment; Biodiversity; Decision making; Ecosystem services; Futures; Nature; Regional; Scenarios.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00516/62748/67140.pdf

Global ensemble projections reveal trophic amplification of ocean biomass declines with climate change
Provedor de dados: 5
Autores: Lotze, Heike K.; Tittensor, Derek P.; Bryndum-buchholz, Andrea; Eddy, Tyler D.; Cheung, William W. L.; Galbraith, Eric D.; Barange, Manuel; Barrier, Nicolas; Bianchi, Daniele; Blanchard, Julia L; Bopp, Laurent; Buchner, Matthias; Bulman, Catherine M.; Carozza, David A.; Christensen, Villy; Coll, Marta; Dunne, John P.; Fulton, Elizabeth A.; Jennings, Simon; Jones, Miranda C.; Mackinson, Steve; Maury, Olivier; Niiranen, Susa; Oliveros-ramos, Ricardo; Roy, Tilla; Fernandes, Jose A.; Schewe, Jacob; Shin, Yunne-jai; Silva, Tiago A. M.; Steenbeek, Jeroen; Stock, Charles A.; Verley, Philippe; Volkholz, Jan; Walker, Nicola D.; Worm, Boris.
While the physical dimensions of climate change are now routinely assessed through multimodel intercomparisons, projected impacts on the global ocean ecosystem generally rely on individual models with a specific set of assumptions. To address these single-model limitations, we present standardized ensemble projections from six global marine ecosystem models forced with two Earth system models and four emission scenarios with and without fishing. We derive average biomass trends and associated uncertainties across the marine food web. Without fishing, mean global animal biomass decreased by 5% (+/- 4% SD) under low emissions and 17% (+/- 11% SD) under high emissions by 2100, with an average 5% decline for every 1 degrees C of warming. Projected biomass...
Tipo: Text
Palavras-chave: Climate change impacts; Marine food webs; Global ecosystem modeling; Model intercomparison; Uncertainty.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00659/77125/78507.pdf

Making ecological indicators management ready: Assessing the specificity, sensitivity, and threshold response of ecological indicators
Provedor de dados: 5
Autores: Fu, Caihong; Xu, Yi; Bundy, Alida; Grüss, Arnaud; Coll, Marta; Heymans, Johanna J.; Fulton, Elizabeth A.; Shannon, Lynne; Halouani, Ghassen; Velez, Laure; Akoğlu, Ekin; Lynam, Christopher P.; Shin, Yunne-jai.
Moving toward ecosystem-based fisheries management (EBFM) necessitates a suite of ecological indicators that are responsive to fishing pressure, capable of tracking changes in the state of marine ecosystems, and related to management objectives. In this study, we employed the gradient forest method to assess the performance of 14 key ecological indicators in terms of specificity, sensitivity and the detection of thresholds for EBFM across ten marine ecosystems using four modelling frameworks (Ecopath with Ecosim, OSMOSE, Atlantis, and a multi-species size-spectrum model). Across seven of the ten ecosystems, high specificity to fishing pressure was found for most of the 14 indicators. The indicators biomass to fisheries catch ratio (B/C), mean lifespan and...
Tipo: Text
Palavras-chave: Ecological modelling; Fishing pressure; Gradient forest method; Indictor performance; Marine ecosystem; Primary productivity.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00500/61148/64576.pdf

A Response to Scientific and Societal Needs for Marine Biological Observations
Provedor de dados: 5
Autores: Bax, Nicholas J.; Miloslavich, Patricia; Muller-karger, Frank Edgar; Allain, Valerie; Appeltans, Ward; Batten, Sonia Dawn; Benedetti-cecchi, Lisandro; Buttigieg, Pier Luigi; Chiba, Sanae; Costa, Daniel Paul; Duffy, J. Emmett; Dunn, Daniel C.; Johnson, Craig Richard; Kudela, Raphael M.; Obura, David; Rebelo, Lisa-maria; Shin, Yunne-jai; Simmons, Samantha Elisabeth; Tyack, Peter Lloyd.
Development of global ocean observing capacity for the biological EOVs is on the cusp of a step-change. Current capacity to automate data collection and processing and to integrate the resulting data streams with complementary data, openly available as FAIR data, is certain to dramatically increase the amount and quality of information and knowledge available to scientists and decision makers into the future. There is little doubt that scientists will continue to expand their understanding of what lives in the ocean, where it lives and how it is changing. However, whether this expanding information stream will inform policy and management or be incorporated into indicators for national reporting is more uncertain. Coordinated data collection including open...
Tipo: Text
Palavras-chave: GOOS; Capacity development; EOV; Ocean observing; Essential ocean variable; UN Decade; Sustainable Development Goals.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00509/62023/66141.pdf

The good(ish), the bad, and the ugly: a tripartite classification of ecosystem trends
Provedor de dados: 5
Autores: Bundy, Alida; Shannon, Lynne J.; Rochet, Marie-joelle; Neira, Sergio; Shin, Yunne-jai; Hill, Louize; Aydin, Kerim.
Marine ecosystems have been exploited for a long time, growing increasingly vulnerable to collapse and irreversible change. How do we know when an ecosystem may be in danger? A measure of the status of individual stocks is only a partial gauge of its status, and does not include changes at the broader ecosystem level, to non-commercial species or to its structure or functioning. Six ecosystem indicators measuring trends over time were collated for 19 ecosystems, corresponding to four ecological attributes: resource potential, ecosystem structure and functioning, conservation of functional biodiversity, and ecosystem stability and resistance to perturbations. We explored the use of a decision-tree approach, a definition of initial ecosystem state (impacted...
Tipo: Text
Palavras-chave: Comparative approach; Decision tree; Ecosystem classification; Ecosystem indicator; Exploited marine ecosystems.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00002/11374/12047.pdf

End-To-End Models for the Analysis of Marine Ecosystems: Challenges, Issues, and Next Steps
Provedor de dados: 5
Autores: Rose, Kenneth A.; Allen, J. Icarus; Artioli, Yuri; Barange, Manuel; Blackford, Jerry; Carlotti, Francois; Cropp, Roger; Daewel, Ute; Edwards, Karen; Flynn, Kevin; Hill, Simeon L.; Hillerislambers, Reinier; Huse, Geir; Mackinson, Steven; Megrey, Bernard; Moll, Andreas; Rivkin, Richard; Salihoglu, Baris; Schrum, Corinna; Shannon, Lynne; Shin, Yunne-jai; Smith, S. Lan; Smith, Chris; Solidoro, Cosimo; St John, Michael; Zhou, Meng.
There is growing interest in models of marine ecosystems that deal with the effects of climate change through the higher trophic levels. Such end-to-end models combine physicochemical oceanographic descriptors and organisms ranging from microbes to higher-trophic-level (HTL) organisms, including humans, in a single modeling framework. The demand for such approaches arises from the need for quantitative tools for ecosystem-based management, particularly models that can deal with bottom-up and top-down controls that operate simultaneously and vary in time and space and that are capable of handling the multiple impacts expected under climate change. End-to-end models are now feasible because of improvements in the component submodels and the availability of...
Tipo: Text
Ano: 2010
URL: https://archimer.ifremer.fr/doc/00483/59488/62350.pdf

Reference levels of ecosystem indicators at multispecies maximum sustainable yield
Provedor de dados: 5
Autores: Briton, Florence; Shannon, Lynne; Barrier, Nicolas; Verley, Philippe; Shin, Yunne-jai.
We investigate reference points for ecosystem indicators in support of an Ecosystem Approach to Fishery. In particular, we assess indicator capacity to detect when the Multispecies Maximum Sustainable Yield (MMSY) is reached, under a wide range of multispecies fishing strategies. The analysis was carried out using a simulation approach based on the ecosystem model OSMOSE in the southern Benguela. We show that the 13 ecosystem indicators have reference points at MMSY that are highly variable across fishing strategies. The state of the ecosystem at MMSY is so variable across fishing strategies that it is not possible to set reference points without considering the fishing strategy. However, strategy-specific reference points were found to constitute robust...
Tipo: Text
Palavras-chave: Ecosystem-based fishery management; Fishing strategy; Indicator reference point; Multispecies MSY; Southern Benguela.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00504/61572/68139.pdf

Risky business: The combined effects of fishing and changes in primary productivity on fish communities
Provedor de dados: 5
Autores: Fu, Caihong; Travers-trolet, Morgane; Velez, Laure; Gruss, Arnaud; Bundy, Alida; Shannon, Lynne J.; Fulton, Elizabeth A.; Akoglu, Ekin; Houle, Jennifer E.; Coll, Marta; Verley, Philippe; Heymans, Johanna J.; John, Emma; Shin, Yunne-jai.
There is an increasing need to understand community-level or whole-ecosystem responses to multiple stressors since the impacts of multiple stressors on marine systems depend not only on species- level responses, but also on species interactions and ecosystem structure. In this study, we used a multi-model ecosystem simulation approach to explore the combined effects of fishing and primary productivity on different components of the food-web across a suite of ecosystems and a range of model types. Simulations were carried out under different levels of primary productivity and various fishing scenarios (targeting different trophic levels). Previous work exploring the effects of multiple stressors often assumed that the combined effects of stressors are...
Tipo: Text
Palavras-chave: Marine ecosystem; Fishing; Combined effect; Meta-analysis; Synergism; Multiple drivers.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00414/52542/53368.pdf

Building bridges between global information systems on marine organisms and ecosystem models
Provedor de dados: 5
Autores: Gruss, Arnaud; Palomares, Maria L. D.; Poelen, Jorrit H.; Barile, Josephine R.; Aldemita, Casey D.; Ortiz, Shelumiel R.; Barrier, Nicolas; Shin, Yunne-jai; Simons, James; Pauly, Daniel.
To facilitate the wider implementation of ecosystem modeling platforms and, thereby, to help advance ecosystem-based fisheries management (EBFM) worldwide, tools delivering a large quantity of inputs to ecosystem models are needed. We developed a web application providing OSMOSE ecosystem models with values for trophic, growth and reproduction parameters derived from data from two global information systems (FishBase and SeaLifeBase). Our web application guides the user through simple queries to extract information from FishBase and SeaLifeBase data archives, and it delivers all the configuration files necessary for running an OSMOSE model. Here, we present our web application and demonstrate it for the West Florida Shelf ecosystem. Our software...
Tipo: Text
Palavras-chave: Web application; FishBase; SeaLifeBase; Ecosystem model; OSMOSE; Web application programming interface.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00489/60109/67182.pdf

Implementation of an end-to-end model of the Gulf of Lions ecosystem (NW Mediterranean Sea). I. Parameterization, calibration and evaluation
Provedor de dados: 5
Autores: Bănaru, Daniela; Diaz, Fréderic; Verley, Philippe; Campbell, Rose; Navarro, Jonathan; Yohia, Christophe; Oliveros-ramos, Ricardo; Mellon, Capucine; Shin, Yunne-jai.
An end-to-end model named OSMOSE-GoL has been built for the Gulf of Lions, the main French Mediterranean fishing area. This spatialized dynamic model links the coupled hydrodynamic and biogeochemical model Eco3M-S/SYMPHONIE (LTL – low trophic level model) to OSMOSE (HTL – high trophic level model). It includes 15 compartments of living organisms, five from the LTL model (i.e. nanophytoplankton, microphytoplankton, nanozooplankton, microzooplankton and mesozooplankton) and ten from the HTL model (northern krill, southern shortfin squid, European pilchard, European anchovy, European sprat, Atlantic horse mackerel, Atlantic mackerel, blue whiting, European hake and Atlantic bluefin tuna). With the exception of northern krill and European sprat, all HTL...
Tipo: Text
Palavras-chave: Ecosystem modeling; Food web; Fisheries; OSMOSE; Eco3M.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00487/59860/65525.pdf

Capturing the big picture of Mediterranean marine biodiversity with an end-to-end model of climate and fishing impacts
Provedor de dados: 5
Autores: Moullec, Fabien; Velez, Laure; Verley, Philippe; Barrier, Nicolas; Ulses, Caroline; Carbonara, Pierluigi; Esteban, Antonio; Follesa, Cristina; Gristina, Michele; Jadaud, Angelique; Ligas, Alessandro; Díaz, Eduardo López; Maiorano, Porzia; Peristeraki, Panagiota; Spedicato, Maria Teresa; Thasitis, Ioannis; Valls, Maria; Guilhaumon, François; Shin, Yunne-jai.
The Mediterranean Sea is one of the main hotspots of marine biodiversity in the world. The combined pressures of fishing activity and climate change have also made it a hotspot of global change amidst increasing concern about the worsening status of exploited marine species. To anticipate the impacts of global changes in the Mediterranean Sea, more integrated modelling approaches are needed, which can then help policymakers prioritize management actions and formulate strategies to mitigate impacts and adapt to changes. The aim of this study was to develop a holistic model of marine biodiversity in the Mediterranean Sea with an explicit representation of the spatial, multispecies dynamics of exploited resources subject to the combined influence of climate...
Tipo: Text
Palavras-chave: Ecosystem model; Ecosystem Approach to Fisheries Management; OSMOSE model; NEMOMED model; Eco3M-S model; Global change.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00512/62408/66668.pdf

Using size-based indicators to evaluate the ecosystem effects of fishing
Provedor de dados: 5
Autores: Shin, Yunne-jai; Rochet, Marie-joelle; Jennings, Simon; Field, John; Gislason, Henrik.
The usefulness and relevance of size-based indicators (SBIs) to an ecosystem approach to fisheries (EAF) are assessed through a review of empirical and modelling studies. SBIs are tabulated along with their definitions, data requirements, potential biases, availability of time-series, and expected directions of change in response to fishing pressure. They include mean length in a population, mean length in a community, mean maximum length in a community, and the slope and intercept of size spectra. Most SBIs can be derived from fairly standard survey data on length frequencies, without the need for elaborate models. Possible fishing- and environment-induced effects are analysed to distinguish between the two causes, and hypothetical cases of reference...
Tipo: Text
Palavras-chave: Size spectrum; Size based indicators; Ecosystem approach to fisheries.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-775.pdf

An end-to-end model to evaluate the sensitivity of ecosystem indicators to track fishing impacts
Provedor de dados: 5
Autores: Halouani, Ghassen; Le Loc'H, François; Shin, Yunne-jai; Velez, Laure; Hattab, Tarek; Romdhane, Mohamed Salah; Ben Rais Lasram, Frida.
In order to assist fisheries managers, ecological indicators are needed to evaluate the effects of fishing activities on marine ecosystems and to improve communication of these effects in both public and scientific contexts. Finding appropriate indicators is challenging given the complexity of marine food webs as well as the ecosystem response to fishing pressure. In this study, an end-to-end model developed in the Gulf of Gabes ecosystem (Tunisia) was used to compare the performance of a set of ecosystem indicators in assessing the impact of fishing. This end-to-end model aimed to represent the ecosystem functioning by coupling two existing sub-models, the multispecies individual-based model OSMOSE, representing the dynamics of exploited species and the...
Tipo: Text
Palavras-chave: Ecological indicators; OSMOSE; Ecosystem model; End-to-end model; Marine ecosystem; Fishing impacts; Fishery; Gulf of Gabes.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00464/57604/60172.pdf

A protocol for the intercomparison of marine fishery and ecosystem models: Fish-MIP v1.0
Provedor de dados: 5
Autores: Tittensor, Derek P.; Eddy, Tyler D.; Lotze, Heike K.; Galbraith, Eric D.; Cheung, William; Barange, Manuel; Blanchard, Julia L.; Bopp, Laurent; Bryndum-buchholz, Andrea; Buechner, Matthias; Bulman, Catherine; Carozza, David A.; Christensen, Villy; Coll, Marta; Dunne, John P.; Fernandes, Jose A.; Fulton, Elizabeth A.; Hobday, Alistair J.; Huber, Veronika; Jennings, Simon; Jones, Miranda; Lehodey, Patrick; Link, Jason S.; Mackinson, Steve; Maury, Olivier; Niiranen, Susa; Oliveros-ramos, Ricardo; Roy, Tilla; Schewe, Jacob; Shin, Yunne-jai; Silva, Tiago; Stock, Charles A.; Steenbeek, Jeroen; Underwood, Philip J.; Volkholz, Jan; Watson, James R.; Walker, Nicola D.
Model intercomparison studies in the climate and Earth sciences communities have been crucial to building credibility and coherence for future projections. They have quantified variability among models, spurred model development, contrasted within- and among-model uncertainty, assessed model fits to historical data, and provided ensemble projections of future change under specified scenarios. Given the speed and magnitude of anthropogenic change in the marine environment and the consequent effects on food security, biodiversity, marine industries, and society, the time is ripe for similar comparisons among models of fisheries and marine ecosystems. Here, we describe the Fisheries and Marine Ecosystem Model Intercomparison Project protocol version 1.0...
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00438/54988/75118.pdf

Strong fisheries management and governance positively impact ecosystem status
Provedor de dados: 5
Autores: Bundy, Alida; Chuenpagdee, Ratana; Boldt, Jennifer L.; Borges, Maria De Fatima; Camara, Mohamed Lamine; Coll, Marta; Diallo, Ibrahima; Fox, Clive; Fulton, Elizabeth A.; Gazihan, Ayse; Jarre, Astrid; Jouffre, Didier; Kleisner, Kristin M.; Knight, Ben; Link, Jason; Matiku, Patroba P.; Masski, Hicham; Moutopoulos, Dimitrios K.; Piroddi, Chiara; Raid, Tut; Sobrino, Ignacio; Tam, Jorge; Thiao, Djiga; Angeles Torres, Maria; Tsagarakis, Konstantinos; Van Der Meeren, Gro I.; Shin, Yunne-jai.
Fisheries have had major negative impacts on marine ecosystems, and effective fisheries management and governance are needed to achieve sustainable fisheries, biodiversity conservation goals and thus good ecosystem status. To date, the IndiSeas programme (Indicators for the Seas) has focussed on assessing the ecological impacts of fishing at the ecosystem scale using ecological indicators. Here, we explore fisheries Management Effectiveness' and Governance Quality' and relate this to ecosystem health and status. We developed a dedicated expert survey, focused at the ecosystem level, with a series of questions addressing aspects of management and governance, from an ecosystem-based perspective, using objective and evidence-based criteria. The survey was...
Tipo: Text
Palavras-chave: Ecological indicator; Ecosystem-based fisheries management (EBFM); Expert evaluation; Fisheries governance quality; Fisheries management effectiveness; Socioeconomic indicators.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00611/72310/71209.pdf

Advancing Marine Biological Observations and Data Requirements of the Complementary Essential Ocean Variables (EOVs) and Essential Biodiversity Variables (EBVs) Frameworks
Provedor de dados: 5
Autores: Muller-karger, Frank E.; Miloslavich, Patricia; Bax, Nicholas J.; Simmons, Samantha; Costello, Mark J.; Pinto, Isabel Sousa; Canonico, Gabrielle; Turner, Woody; Gill, Michael; Montes, Enrique; Best, Benjamin D.; Pearlman, Jay; Halpin, Patrick; Dunn, Daniel; Benson, Abigail; Martin, Corinne S.; Weatherdon, Lauren V.; Appeltans, Ward; Provoost, Pieter; Klein, Eduardo; Kelble, Christopher R.; Miller, Robert J.; Chavez, Francisco P.; Iken, Katrin; Chiba, Sanae; Obura, David; Navarro, Laetitia M.; Pereira, Henrique M.; Allain, Valerie; Batten, Sonia; Benedetti-checchi, Lisandro; Duffy, J. Emmett; Kudela, Raphael M.; Rebelo, Lisa-maria; Shin, Yunne-jai; Geller, Gary.
Measurements of the status and trends of key indicators for the ocean and marine life are required to inform policy and management in the context of growing human uses of marine resources, coastal development, and climate change. Two synergistic efforts identify specific priority variables for monitoring: Essential Ocean Variables (EOVs) through the Global Ocean Observing System (GOOS), and Essential Biodiversity Variables (EBVs) from the Group on Earth Observations Biodiversity Observation Network (GEO BON) (see Data Sheet 1 in Supplementary Materials for a glossary of acronyms). Both systems support reporting against internationally agreed conventions and treaties. GOOS, established under the auspices of the Intergovernmental Oceanographic Commission...
Tipo: Text
Palavras-chave: Essential ocean variables (EOV); Essential biodiversity variables (EBV); Marine biodiversity observation network (MBON); Global ocean observing system(GOOS); Ocean biogeographic information system(OBIS); Marine global earth observatory (MarineGEO); Integrated marine biosphere research (IMBeR).
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00626/73783/75103.pdf

Responses of ecological indicators to fishing pressure under environmental change: exploring non-linearity and thresholds
Provedor de dados: 5
Autores: Fu, Caihong; Xu, Yi; Grüss, Arnaud; Bundy, Alida; Shannon, Lynne; Heymans, Johanna J; Halouani, Ghassen; Akoglu, Ekin; Lynam, Christopher P; Coll, Marta; Fulton, Elizabeth A; Velez, Laure; Shin, Yunne-jai.
Marine ecosystems are influenced by multiple stressors in both linear and non-linear ways. Using generalized additive models (GAMs) fitted to outputs from a multi-ecosystem, multi-model simulation experiment, we investigated 14 major ecological indicators across ten marine ecosystems about their responses to fishing pressure under: (i) three different fishing strategies (focusing on low-, high-, or all-trophic-level taxa); and (ii) four different scenarios of directional or random primary productivity change, a proxy for environmental change. From this work, we draw four major conclusions: (i) responses of indicators to fishing mortality in shapes, directions, and thresholds depend on the fishing strategies considered; (ii) most of the indicators...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00516/62749/67138.pdf

Essential ocean variables for global sustained observations of biodiversity and ecosystem changes
Provedor de dados: 5
Autores: Miloslavich, Patricia; Bax, Nicholas J.; Simmons, Samantha E.; Klein, Eduardo; Appeltans, Ward; Aburto-oropeza, Octavio; Garcia, Melissa Andersen; Batten, Sonia D.; Benedetti-cecchi, Lisandro; Checkley, David M., Jr.; Chiba, Sanae; Duffy, J. Emmett; Dunn, Daniel C.; Fischer, Albert; Gunn, John; Kudela, Raphael; Marsac, Francis; Muller-karger, Frank E.; Obura, David; Shin, Yunne-jai.
Sustained observations of marine biodiversity and ecosystems focused on specific conservation and management problems are needed around the world to effectively mitigate or manage changes resulting from anthropogenic pressures. These observations, while complex and expensive, are required by the international scientific, governance and policy communities to provide baselines against which the effects of human pressures and climate change may be measured and reported, and resources allocated to implement solutions. To identify biological and ecological essential ocean variables (EOVs) for implementation within a global ocean observing system that is relevant for science, informs society, and technologically feasible, we used a...
Tipo: Text
Palavras-chave: Driver-pressure-state-impact-response; Essential ocean variables; Framework for ocean observing; Global ocean observing system; Marine biodiversity changes; Marine Biodiversity Observation Network; Ocean change.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00611/72300/71178.pdf

The Cumulative Effects of Fishing, Plankton Productivity, and Marine Mammal Consumption in a Marine Ecosystem
Provedor de dados: 5
Autores: Fu, Caihong; Xu, Yi; Guo, Chuanbo; Olsen, Norm; Grüss, Arnaud; Liu, Huizhu; Barrier, Nicolas; Verley, Philippe; Shin, Yunne-jai.
The marine ecosystem off British Columbia (BC), Canada, has experienced various changes in the last two decades, including reduced lipid-rich zooplankton biomass, increased marine mammals, and deteriorated commercial fisheries, particularly those targeting pelagic species such as Pacific Herring (Clupea pallasii). Understanding how stressors interactively and cumulatively affect commercially important fish species is key to moving toward ecosystem-based fisheries management. Because it is challenging to assess the cumulative effects of multiple stressors by using empirical data alone, a dynamic, individual-based spatially explicit ecosystem modeling platform such as Object-oriented Simulator of Marine Ecosystems (OSMOSE) represents a valuable tool to...
Tipo: Text
Palavras-chave: Cumulative effect; Ecosystem-based fisheries management; Ecological indicator; Ecosystem modeling; Synergism.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00654/76615/77768.pdf

The Ocean Decade: A True Ecosystem Modeling Challenge
Provedor de dados: 5
Autores: Heymans, Johanna J.; Bundy, Alida; Christensen, Villy; Coll, Marta; De Mutsert, Kim; Fulton, Elizabeth A.; Piroddi, Chiara; Shin, Yunne-jai; Steenbeek, Jeroen; Travers-trolet, Morgane.
Tipo: Text
Palavras-chave: Ocean Decade; Ecosystem modeling; Climate change; Ecosystem based management (EBM); Sustainable development goals (SDG).
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00652/76379/77386.pdf

An end-to-end coupled model ROMS-N(2)P(2)Z(2)D(2)-OSMOSE of the southern Benguela foodweb: parameterisation, calibration and pattern-oriented validation
Provedor de dados: 5
Autores: Travers-trolet, Morgane; Shin, Yunne-jai; Field, J. G.
In order to better understand ecosystem functioning under simultaneous pressures (e.g. both climate change and fishing pressures), integrated modelling approaches are advocated. We developed an end-to-end model of the southern Benguela ecosystem by coupling the high trophic level model OSMOSE with a biophysical model (ROMS-N(2)P(2)Z(2)D(2)). OSMOSE is a spatial, multispecies, individual-based model simulating the whole life cycle of fish with fish schools interacting through opportunistic and size-based predation. It is linked to the biogeochemical model through the predation process; plankton groups are food for fish and fish apply a predation mortality on plankton. Here we describe the two-way coupling between the models and follow a pattern-oriented...
Tipo: Text
Palavras-chave: Individual-based model; Model validation; Pattern-oriented modelling; Trophic interactions; Two-way coupling.
Ano: 2014
URL: https://archimer.ifremer.fr/doc/00193/30457/83335.pdf

Report on the workshop ‘Global Modelling of Biodiversity and Ecosystem Services’. June 2019, the Hague, the Netherlands
Provedor de dados: 5
Autores: Okayasu, Sana; Schoolenberg, Machteld; Alkemade, Rob; Den Belder, Eefje; Pereira, Henrique; Lundquist, Carolyn; Cheung, William; Rondinini, Carlo; Halouani, Ghassen; Hyejin, Kim; Miller, Brian; Hirsch, Tim; Abbasov, Rovshan; Arneth, Almut; Diaw, Mariteuw Chimè; Eddy, Tyler; Harfoot, Michael; Hasegawa, Tomoko; Hickler, Thomas; Hill, Samantha; Humpenöder, Florian; Johnson, Justin; Kok, Marcel; Leadley, Paul; Leclere, David; Navarro, Laetitia; Ohashi, Haruka; Peterson, Garry; Schipper, Aafke; Shin, Yunne-jai; Stehfest, Elke; Visconti, Piero; Van Vuuren, Detlef.
A three-day workshop on ‘Global Modelling of Biodiversity and Ecosystem Services’, was held in the Hague, Netherlands, from 24th to 26th June 2019. The workshop, attended by 35 modelling and scenario-building experts, was organised on behalf of the former IPBES1expert group on scenarios and models of the first IPBES work programme by its interim technical support unit, and hosted by the PBL Netherlands Environmental Assessment Agency. The workshop drew on the ‘nature futures’ participatory scenario-building exercise initiated by the IPBES expert group on scenarios and models, and other biodiversity modelling initiatives such as the ISIMIP project2 working on adding biodiversity to the Shared Socioeconomic Pathways (SSPs) scenarios framework, the 'bending...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00663/77481/79211.pdf