Detecting, attributing, and projecting global marine ecosystem and fisheries change: FishMIP 2.0

Authorea (Authorea), Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 22, 2024

There is an urgent need for models that can robustly detect past and project future ecosystem changes risks to the services they provide people. The Fisheries Marine Ecosystem Model Intercomparison Project (FishMIP) was established develop model ensembles projecting long-term impacts of climate change on fisheries marine ecosystems while informing policy at spatio-temporal scales relevant Inter-Sectoral Impact (ISIMIP) framework. While contributing FishMIP have improved over time, large uncertainties in projections remain, particularly coastal shelf seas where most world’s occur. Furthermore, previous impact mostly ignored fishing activity due a lack standardized historical scenario-based human forcing uneven capabilities dynamically across community. This, addition underrepresentation processes, has limited ability evaluate ensemble’s adequately capture states - crucial step building confidence projections. To address these issues, we developed two parallel simulation experiments (FishMIP 2.0) on: 1) evaluation detection 2) scenarios Key advances include forcing, captures oceanographic features not previously resolved, systematically test effects models. 2.0 key towards attribution framework regional global scales, enhanced relevance through increased ensemble

Language: Английский

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Spatial analysis of demersal food webs through integration of eDNA metabarcoding with fishing activities

Frontiers in Marine Science, Journal Year: 2024, Volume and Issue: 10

Published: Jan. 8, 2024

The evaluation of the status marine communities, and especially monitoring those heavily exploited by fisheries, is a key, challenging task in sciences. Fishing activities are major source disruption to food webs, both directly, selectively removing components at specific trophic levels (TL), indirectly, altering habitats production cycles. Food web analysis can be very useful context an Ecosystem Approach Fisheries, but reconstructions demand large expensive data sets, which typically available only for small fraction ecosystems. Recently, new technologies have been developed easily, quickly cost-effectively collect environmental DNA (eDNA) during fishing activities. By generating large, multi-marker metabarcoding from eDNA samples obtained commercial trawlers, it possible produce exhaustive taxonomic inventories ecosystems, suitable food-web reconstructions. Here, we integrate re-analyse recent study α diversity was investigated using opportunistically collected operations. Indeed, highly resolved information on species feeding relationships reconstruct webs different sites Strait Sicily (Mediterranean Sea) catch data. After observing that networks more consistent with knowledge, set indicators (species richness, number links, direct connectance generality) computed analysed unravel differences structure through areas (spatial variations). Species links generality (positively) (negatively) correlated increasing distance coast effort intensity. combined effects gradients then examined modelled. Taken together, these findings indicate suitability assist analysis, obtain several web-related ecological indicators, tease out effect intensity

Language: Английский

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Detecting, Attributing, and Projecting Global Marine Ecosystem and Fisheries Change: FishMIP 2.0

Earth s Future, Journal Year: 2024, Volume and Issue: 12(12)

Published: Dec. 1, 2024

Abstract There is an urgent need for models that can robustly detect past and project future ecosystem changes risks to the services they provide people. The Fisheries Marine Ecosystem Model Intercomparison Project (FishMIP) was established develop model ensembles projecting long‐term impacts of climate change on fisheries marine ecosystems while informing policy at spatio‐temporal scales relevant Inter‐Sectoral Impact (ISIMIP) framework. While contributing FishMIP have improved over time, large uncertainties in projections remain, particularly coastal shelf seas where most world's occur. Furthermore, previous impact been limited by a lack global standardized historical fishing data, low resolution processes, uneven capabilities across community dynamically fisheries. These features are needed evaluate how reliably ensemble captures states ‐ crucial step building confidence projections. To address these issues, we developed 2.0 comprising two‐track framework for: (a) evaluation attribution (b) socioeconomic scenario Key advances include forcing, which oceanographic not previously resolved, forcing test effects systematically models. toward detection changing enhanced relevance through increased Our results will help elucidate pathways achieving sustainable development goals.

Language: Английский

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Adriatic Sea Fishery Product Safety and Prospectives in Relation to Climate Change

Fishes, Journal Year: 2024, Volume and Issue: 9(5), P. 160 - 160

Published: April 28, 2024

This bibliographic study addresses key aspects related to fishing, product safety, and climate change in the Adriatic Sea region. The examination of safety focuses on assessment contaminants originating from human activities such as industry, mining, agriculture, household waste disposal. contamination aquatic environment has emerged a pressing global concern, extending basin. Aquatic organisms, including fish, are prone accumulating pollutants directly polluted water sources indirectly through food web. bio-accumulation potentially hazardous substances, particularly heavy metals, pesticides, PCBs, PAHs, antibiotic resistance poses significant threat health. Climate effects will deplete our seafood supply terms quantity owing negative consequences higher levels pollution, parasites, viruses, infections, acidification, toxicities shellfish poisoning. Global strategies should be developed reduce greenhouse gas emissions promote environmentally friendly technology, which affects quality microbiological especially for Sea, is part Mediterranean characterized by most waters world.

Language: Английский

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Towards an ecosystem approach to a simulated floating wind farm combined with climate change in the Bay of Biscay (France)

Regional Studies in Marine Science, Journal Year: 2025, Volume and Issue: unknown, P. 104218 - 104218

Published: April 1, 2025

Language: Английский

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A view on climate change and its impact on the Mediterranean fisheries

Deleted Journal, Journal Year: 2024, Volume and Issue: 2(1)

Published: May 30, 2024

Fisheries in the Mediterranean Sea are multi-specific and multi-fleet; artisanal or small-scale fisheries, trawling seining fisheries. Currently, is a hotspot of climate changes. The change global phenomenon affecting whole world, its impact different with regions, affected by uncertainty. In marine waters, three climatic changes most important: warming, acidification oxygen loss (deoxygenation). There many observed impacts (positive negative impacts) on regions coastal regional models used to predict implication Mediterranean. vulnerability likely be higher for pelagic fisheries eastern region due increase non-indigenous species demersal northern-central high diversity drivers. Southern countries expected more vulnerable as result lower capacity cope impacts. Adaptation mitigation needed. Marine protected areas (MPAs) reduction fishing effort effective tools conservation biodiversity protection fish stocks. author described cases study discussed special issues Egyptian prospect manage future.

Language: Английский

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Erosion of fish trophic position: an indirect effect of fishing on food webs elucidated by stable isotopes

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 379(1909)

Published: July 22, 2024

Fishing has significant trophodynamic impacts on marine communities, including reductions in the mean trophic position (TP) of ecosystem resulting from a decrease abundance and size species individuals with high TPs. This study demonstrates erosion fish TP, an additional process that results lower TP given size, which may exacerbate effects fishing food web. A stable isotope approach based tRophicPosition Bayesian method was used to quantify 12 target at length, compare their between fishery-restricted areas trawled areas. The show difference six benthic apical nekto-benthic predators, feed median about 0.5 It appears current ‘fishing down webs’ analyses underestimate fishing. Accounting for changes trophodynamics is important detect indirect through web interactions. application trawling ban lead restoration lost structure; however, occur more slowly than biomass. article part theme issue ‘Connected interactions: enriching research by spatial social interactions’.

Language: Английский

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A systematic review on the use of food web models for addressing the social and economic consequences of fisheries policies and environmental change

Frontiers in Marine Science, Journal Year: 2024, Volume and Issue: 11

Published: Dec. 20, 2024

Fisheries are complex systems. Food web models increasingly being used to study the ecological consequences of fisheries policies and environmental change on such systems around world. Nonetheless, these extend well into social, economic, cultural, political domains The main goal this contribution is characterize how food socioeconomic management actions change. We conducted a systematic literature review covering research published between January 2010 July 2023. Only 47 papers (out an initial pool 506 publications) met our criteria. Based this, it evident that body has been increasing slowly at constant rate – condition not shared with other emerging fields. Modeled were mostly marine (87%), waters 38 countries across 19 Large Marine Ecosystems; albeit in Global North. components reviewed (e.g., functional groups) represented much finer scale than their counterparts. Most developed using Ecopath Ecosim (68%) or Atlantis (21%) modeling software suites. Four key foci identified selected literature. These shaped methodological approaches followed, as models’ capabilities, simulation drivers, way webs integrated bioeconomic models, performance metrics they reported. less half captured social concerns, only one-third addressed trade-offs among objectives, handful explicitly uncertainty. implications findings discussed detail respect resource managers needs for ecosystem-based management. Our collective understanding interlinkages biophysical aquatic still limited. hope seen call action community rises challenge embracing interdisciplinarity bridge existing knowledge silos improve ability model all components.

Language: Английский

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Ecosystem-level responses to multiple stressors using a time-dynamic food-web model: The case of a re-oligotrophicated coastal embayment (Saronikos Gulf, E Mediterranean)

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 903, P. 165882 - 165882

Published: Aug. 11, 2023

Language: Английский

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Exploring the feasibility of technological transfers of two by-catch reduction devices in the crustacean bottom trawling of the central Mediterranean

Frontiers in Marine Science, Journal Year: 2023, Volume and Issue: 10

Published: April 26, 2023

Introduction Most Mediterranean fish stocks are overexploited owing to high fishing efforts and poor exploitation patterns. Demersal trawl fisheries considered the most impactful fishery type because of quantities unwanted catch that is then routinely discarded at sea. Methods In present study, two types by-catch reduction devices (BRDs), a sorting grid (Grid-T45 40 mm) T90 50 mm codend, were compared typical commercial bottom net (control) in terms size structures per unit effort assess effect gear modification on selectivity crustacean central Sea. particular, three randomly selected trawlers involved paired hauls experiment same time ground. Each trawler carried out four day during 3-day campaign for total 36 hauls. The target species Parapenaeus longirostris (herein DPS), main Merluccius merluccius HKE). Results results showed landing (LPUE) DPS was higher Grid-T45 net, although it did not differ significantly from control net. Conversely, discard (DPUE) than both BRD configurations. For HKE, slightly LPUE recorded using codend control, but this result statistically significant. lowest DPUE found with significant differences comparison analysed through generalised linear mixed models highlighted more effective catching adult DPS, whereas selective HKE. Discussion conclusion, further studies should be future test performance BRDs different areas seasons, investigated seems promising reducing undersized individuals contributing mitigating current overfishing

Language: Английский

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