Consulta: creatorFacets:"Coll, Marta"
Registros recuperados: 22
Data/hora: 11/06/2024 00:59:32

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

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

Historical changes of the Mediterranean Sea ecosystem: modelling the role and impact of primary productivity and fisheries changes over time
Provedor de dados: 5
Autores: Piroddi, Chiara; Coll, Marta; Liquete, Camino; Macias, Diego; Greer, Krista; Buszowski, Joe; Steenbeek, Jeroen; Danovaro, Roberto; Christensen, Villy.
The Mediterranean Sea has been defined "under siege" because of intense pressures from multiple human activities; yet there is still insufficient information on the cumulative impact of these stressors on the ecosystem and its resources. We evaluate how the historical (1950-2011) trends of various ecosystems groups/species have been impacted by changes in primary productivity (PP) combined with fishing pressure. We investigate the whole Mediterranean Sea using a food web modelling approach. Results indicate that both changes in PP and fishing pressure played an important role in driving species dynamics. Yet, PP was the strongest driver upon the Mediterranean Sea ecosystem. This highlights the importance of bottom-up processes in controlling the biological...
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00625/73723/74900.pdf

Keystone species: toward an operational concept for marine biodiversity conservation
Provedor de dados: 5
Autores: Valls, Audrey; Coll, Marta; Christensen, Villy.
Various definitions and indices have been proposed in the literature to identify keystone species. In this study, we intended to make the concept of keystone species operational for marine biodiversity conservation. We used an exclusive definition of keystone species, based on the original concept of keystone predator, and derived a new functional index of keystoneness (KS) from an ecosystem-modeling approach. First, several KS indices were formulated, by combining measures of the mixed-trophic impact (MTI) and biomass of species. Then, a meta-analysis was performed, based on 101 published Ecopath food-web models, selected with a scoring method, and representative of the variety of marine ecosystems worldwide. The indices were applied to the models, and...
Tipo: Text
Palavras-chave: Classification tree; Ecopath model; Food-web structure; Index of keystoneness; Keystone species; Marine ecosystems; Meta-analysis; Mixed-trophic impact; Rank correlation tests; Scoring method.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00627/73869/73736.pdf

Protected and Threatened Components of Fish Biodiversity in the Mediterranean Sea
Provedor de dados: 5
Autores: Mouillot, David; Albouy, Camille; Guilhaumon, Francois; Lasram, Frida Ben Rais; Coll, Marta; Devictor, Vincent; Meynard, Christine N.; Pauly, Daniel; Tomasini, Jean-antoine; Troussellier, Marc; Velez, Laure; Watson, Reg; Douzery, Emmanuel J. P.; Mouquet, Nicolas.
The Mediterranean Sea (0.82% of the global oceanic surface) holds 4%-18% of all known marine species (similar to 17,000), with a high proportion of endemism [1, 2]. This exceptional biodiversity is under severe threats [1] but benefits from a system of 100 marine protected areas (MPAs). Surprisingly, the spatial congruence of fish biodiversity hot spots with this MPA system and the areas of high fishing pressure has not been assessed. Moreover, evolutionary and functional breadth of species assemblages [3] has been largely overlooked in marine systems. Here we adopted a multifaceted approach to biodiversity by considering the species richness of total, endemic, and threatened coastal fish assemblages as well as their functional and phylogenetic diversity....
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00040/15109/12606.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

Unravelling the ecological role and trophic relationships of uncommon and threatened elasmobranchs in the western Mediterranean Sea
Provedor de dados: 5
Autores: Barria, Claudio; Coll, Marta; Navarro, Joan.
Deficiencies in basic ecological information on uncommon and endangered elasmobranch fishes impair the assessment of their ecological role in marine ecosystems. In this study, we examined the feeding ecology (diet composition and trophic level) and trophic relationships of 22 elasmobranchs (2 Carcharhiniformes, 1 Hexanchiformes, 1 Lamniformes, 3 Myliobatiformes, 6 Rajiformes, 6 Squaliformes and 3 Torpediniformes) present in the western Mediterranean Sea. To obtain a comprehensive view of the feeding ecology of these species, we combined different approaches: stable isotope analyses (delta C-13 and delta N-15 values), stomach content analyses and published sources. Our results revealed differences in feeding strategies among elasmobranch groups: skates...
Tipo: Text
Palavras-chave: Mediterranean Sea; Rays; Sharks; Skates; Species at risk; Stable isotopes; Trophic ecology; Trophic level.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00626/73825/73409.pdf

Modelling the Mediterranean marine ecosystem as a whole: addressing the challenge of complexity
Provedor de dados: 5
Autores: Piroddi, Chiara; Coll, Marta; Steenbeek, Jeroen; Moy, Diego Macias; Christensen, Villy.
An ecosystem modelling approach was used to understand and assess the Mediterranean marine ecosystem structure and function as a whole. In particular, 2 food web models for the 1950s and 2000s were built to investigate: (1) the main structural and functional characteristics of the Mediterranean food web during these 2 time periods; (2) the key species/functional groups and interactions; (3) the role of fisheries and their impact; and (4) the ecosystem properties of the Mediterranean Sea in comparison with other European regional seas. Our results show that small pelagic fishes, mainly European pilchards and anchovies, prevailed in terms of biomasses and catches during both periods. Large pelagic fishes, sharks and medium pelagic fishes played a key role in...
Tipo: Text
Palavras-chave: Ecopath model; Food web; Ecosystem modelling; Network analysis; Fishing impact; Mediterranean Sea.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00626/73838/73681.pdf

Best practice in Ecopath with Ecosim food-web models for ecosystem-based management
Provedor de dados: 5
Autores: Heymans, Johanna Jacomina; Coll, Marta; Link, Jason S.; Mackinson, Steven; Steenbeek, Jeroen; Walters, Carl; Christensen, Villy.
Ecopath with Ecosim (EwE) models are easier to construct and use compared to most other ecosystem modelling techniques and are therefore more widely used by more scientists and managers. This, however, creates a problem with quality assurance; to address this we provide an overview of best practices for creating Ecopath, models. We describe the diagnostics that can be used to check for thermodynamic and ecological principles, and highlight principles that should be used for balancing a model. We then highlight the pitfalls when comparing Ecopath models using Ecological Network Analysis indices. For dynamic simulations in Ecosim we show the state of the art in calibrating the model by fitting it to time series using a formal fitting procedure and...
Tipo: Text
Palavras-chave: Ecopath with Ecosim; Ecological network analysis; Ecosystem modelling; Ecosystem-based management; Monte Carlo; Time series fitting.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00626/73763/74237.pdf

Fishing impact and environmental status in European seas: a diagnosis from stock assessments and ecosystem indicators
Provedor de dados: 5
Autores: Gascuel, Didier; Coll, Marta; Fox, Clive; Guenette, Sylvie; Guitton, Jerome; Kenny, Andrew; Knittweis, Leyla; Nielsen, J. Rasmus; Piet, Gerjan; Raid, Tiit; Travers-trolet, Morgane; Shephard, Samuel.
Stock-based and ecosystem-based indicators are used to provide a new diagnosis of the fishing impact and environmental status of European seas. In the seven European marine ecosystems covering the Baltic and the North-east Atlantic, (i) trends in landings since 1950 were examined; (ii) syntheses of the status and trends in fish stocks were consolidated at the ecosystem level; and (iii) trends in ecosystem indicators based on landings and surveys were analysed. We show that yields began to decrease everywhere (except in the Baltic) from the mid-1970s, as a result of the over-exploitation of some major stocks. Fishermen adapted by increasing fishing effort and exploiting a wider part of the ecosystems. This was insufficient to compensate for the decrease in...
Tipo: Text
Palavras-chave: Ecosystem approach to fisheries management; Ecosystem indicators; Good environmental status; Marine Strategy Framework Directive; Stock assessment; Trophic level.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00201/31256/29910.pdf

A trophic latitudinal gradient revealed in anchovy and sardine from the Western Mediterranean Sea using a multi-proxy approach
Provedor de dados: 5
Autores: Bachiller, Eneko; Albo-puigserver, Marta; Giménez, Joan; Pennino, Maria Grazia; Marí-mena, Neus; Esteban, Antonio; Lloret-lloret, Elena; Jadaud, Angelique; Carro, Belén; Bellido, José María; Coll, Marta.
This work combines state-of-the-art methods (DNA metabarcoding) with classic approaches (visual stomach content characterization and stable isotope analyses of nitrogen (δ15N) and carbon (δ13C)) to investigate the trophic ecology of anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) at high taxonomic and spatial resolution in the Western Mediterranean Sea. Gut contents observed are in accordance with the dietary plasticity generally described for anchovy and sardine, suggesting a diet related to the opportunistic ingestion of available prey in a certain area and/or time. Genetic tools also showed modest inter-specific differences regarding ingested species. However, inter-specific and intra-specific differences in ingested prey frequencies...
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00656/76807/77975.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

Trophic level-based indicators to track fishing impacts across marine ecosystems
Provedor de dados: 5
Autores: Shannon, Lynne; Coll, Marta; Bundy, Alida; Gascuel, Didier; Heymans, Johanna J;; Kleisner, Kristin; Lynam, Christopher; Piroddi, Chiara; Tam, Jorge; Travers-trolet, Morgane; Shin, Yunne.
Trophic level (TL)-based indicators have been widely used to examine fishing impacts in aquatic ecosystems and the induced biodiversity changes. However, much debate has ensued regarding discrepancies and challenges arising from the use of landings data from commercial fisheries to calculate TL indicators. Subsequent studies have started to examine survey-based and model-based indicators. In this paper, we undertake an extensive evaluation of a variety of TL indicators across 9 well-studied marine ecosystems by making use of model- as well as surveyand catch-based TL indicators. Using detailed regional information and data on fishing history, fishing intensity, and environmental conditions, we evaluate how well TL indicators are capturing fishing effects...
Tipo: Text
Palavras-chave: Trophic level; Global comparison; Indicator; Survey; Catch; Ecosystem model; Trophic spectra; Convention on Biological Diversity; Food webs; Ecosystem approach to fisheries.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00222/33361/31768.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

Feeding ecology and trophic position of three sympatric demersal chondrichthyans in the northwestern Mediterranean
Provedor de dados: 5
Autores: Albo-puigserver, Marta; Navarro, Joan; Coll, Marta; Aguzzi, Jacopo; Cardona, Luis; Saez-liante, Raquel.
Understanding how marine predators interact is a scientific challenge. In marine ecosystems, segregation in feeding habits has been largely described as a common mechanism to allow the coexistence of several competing marine predators. However, little is known about the feeding ecology of most species of chondrichthyans, which play a pivotal role in the structure of marine food webs worldwide. In this study, we examined the trophic ecology of 3 relatively abundant chondrichthyans coexisting in the Mediterranean Sea: the blackmouth catshark Galeus melastomus, the velvet belly lanternshark Etmopterus spinax and the rabbit fish Chimaera monstrosa. To examine their trophic ecology and interspecific differences in food habits, we combined the analysis of...
Tipo: Text
Palavras-chave: Feeding niche; Isotope analysis; Mediterranean Sea; Galeus melastomus; Etmopterus spinax; Chimaera monstrosa.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00266/37721/73392.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

Space invaders; biological invasions in marine conservation planning
Provedor de dados: 5
Autores: Giakoumi, Sylvaine; Guilhaumon, Francois; Kark, Salit; Terlizzi, Antonio; Claudet, Joachim; Felline, Serena; Cerrano, Carlo; Coll, Marta; Danovaro, Roberto; Fraschetti, Simonetta; Koutsoubas, Drosos; Ledoux, Jean-batiste; Mazor, Tessa; Merigot, Bastien; Micheli, Fiorenza; Katsanevakis, Stelios.
AimBiological invasions are major contributors to global change and native biodiversity decline. However, they are overlooked in marine conservation plans. Here, we examine for the first time the extent to which marine conservation planning research has addressed (or ignored) biological invasions. Furthermore, we explore the change of spatial priorities in conservation plans when different approaches are used to incorporate the presence and impacts of invasive species. LocationGlobal analysis with a focus on the Mediterranean Sea region. MethodsWe conducted a systematic literature review consisting of three steps: (1) article selection using a search engine, (2) abstract screening and (3) review of pertinent articles, which were identified in the second...
Tipo: Text
Palavras-chave: Alien species; Biological invasions; Conservation planning; Impacts; Management actions; Marine biogeographic regions; Marine protected areas; Mediterranean Sea.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00359/47001/74196.pdf

Effects of Nutrient Management Scenarios on Marine Food Webs: A Pan-European Assessment in Support of the Marine Strategy Framework Directive
Provedor de dados: 5
Autores: Piroddi, Chiara; Akoglu, Ekin; Andonegi, Eider; Bentley, Jacob W.; Celić, Igor; Coll, Marta; Dimarchopoulou, Donna; Friedland, René; De Mutsert, Kim; Girardin, Raphael; Garcia-gorriz, Elisa; Grizzetti, Bruna; Hernvann, P.-y.; Heymans, Johanna J.; Müller-karulis, Bärbel; Libralato, Simone; Lynam, Christopher P.; Macias, Diego; Miladinova, Svetla; Moullec, Fabien; Palialexis, Andreas; Parn, Ove; Serpetti, Natalia; Solidoro, Cosimo; Steenbeek, Jeroen; Stips, Adolf; Tomczak, Maciej T.; Travers-trolet, Morgane; Tsikliras, Athanassios C.
Eutrophication is one of the most important anthropogenic pressures impacting coastal seas. In Europe, several legislations and management measures have been implemented to halt nutrient overloading in marine ecosystems. This study evaluates the impact of freshwater nutrient control measures on higher trophic levels (HTL) in European marine ecosystems following descriptors and criteria as defined by the Marine Strategy Framework Directive (MSFD). We used a novel pan-European marine modeling ensemble of fourteen HTL models, covering almost all the EU seas, under two nutrient management scenarios. Results from our projections suggest that the proposed nutrient reduction measures may not have a significant impact on the structure and function of European...
Tipo: Text
Palavras-chave: Ecological modeling; Hydrological modeling; Hydrodynamic and biogeochemical modeling; Higher trophic level modeling; Ecological indicators; Criteria; Policy support.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00685/79746/82520.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