System-specific aquaculture annual growth rates can mitigate the trilemma of production, pollution and carbon dioxide emissions in China

Nature Food, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 11, 2025

Language: Английский

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Tilapia aquaculture systems in Egypt: Characteristics, sustainability outcomes and entry points for sustainable aquatic food systems

Aquaculture, Journal Year: 2023, Volume and Issue: 577, P. 739952 - 739952

Published: July 30, 2023

The future demand for fish and other aquatic foods requires the sustainable intensification of related production systems. However, policy investment decisions aquaculture systems are hindered by lack benchmarking data on their actual sustainability performance, which often result in poorly developed implemented interventions that ignore potential trade-offs. This is a reality many leading developing country producers like Egypt. In this study we analyzed farm-level from 402 Egypt, to characterize benchmark performance tilapia against key outcomes using combination ordinary least square regressions, simultaneous quantile regressions propensity score matching analytical techniques. We focussed how characteristics practices different intersect with economic, food security, environmental cover multiple dimensions sustainability. found differences these were significantly associated particular, our results show yields monoculture (10,460.5 ton/ha) higher than polyculture (8404.7 ton/ha). Furthermore, despite generally positive several studied systems, some trade-offs emerge both between within dimensions.

Language: Английский

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Systems approaches for sustainable fisheries: A comprehensive review and future perspectives

Sustainable Production and Consumption, Journal Year: 2023, Volume and Issue: 41, P. 242 - 252

Published: Aug. 20, 2023

Recirculating aquaculture systems (RASs) have been identified as having high potential for development, attributed to their significant advantages, such higher productivity, reduced water consumption, and improved sustainability. However, increased energy requirements due the amount of recycling temperature control leads operational costs added environmental impacts from use fossil fuels, causing a barrier widespread deployment. This study examines renewable integration with RASs improve financial feasibility, while also presenting an overview its challenges system optimisation modelling, which is presently absent in existing literature. Renewable coupled more efficient practices through process advanced monitoring has make sustainable profitable. offers comprehensive understanding sustainability concerning demands RASs, growth by adopting wider dynamic directions problem-solving using models. To address intermittency instability that arise development RAS, research on economic needed meet design, planning, scheduling, operation, aquaculture. Systematic decision-making guidelines greater efficiency based modelling can help UN Sustainability Development Goals (SDGs). With new technological advances energy, artificial intelligence treatment, system-based models may identifying types, technology options improvements should be integrated into different transform competitiveness industry.

Language: Английский

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What is happening to the European Union aquaculture production? Investigating its stagnation and sustainability

Aquaculture, Journal Year: 2024, Volume and Issue: unknown, P. 741793 - 741793

Published: Oct. 1, 2024

Language: Английский

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An Object-Based Approach to Extract Aquaculture Ponds with 10-Meter Resolution Sentinel-2 Images: A Case Study of Wenchang City in Hainan Province

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(7), P. 1217 - 1217

Published: March 29, 2024

Coastal aquaculture has made an important contribution to global food security and the economic development of coastal zones in recent decades. However, it also damaged these zones’ ecosystems. Moreover, is poised play a key role achievement Sustainable Development Goals (SDGs). Consequently, extracting become crucial valuable. due limitations remote sensing image spatial resolution traditional extraction methods, most research studies focus on areas containing dikes rather than individually separable ponds (ISAPs). This not accurate estimation areas’ true size. In our study, we propose rapid effective object-based method ISAPs. We chose multi-scale segmentation generate semantically meaningful objects for various types land cover, then built decision tree classifier according unique features The results show that can remove small rivers other easily confused features, which thus far been difficult accomplish with conventional methods. obtained overall precision value 85.61% recall 84.04%; compared support vector machine’s (SVM) 78.85% rate 61.21%, demonstrates greater accuracy efficiency. used this test transferability algorithm nearby areas, exceeded 80%. proposed study could provide readily available solution simple efficient ISAPs shows high spatiotemporal transferability.

Language: Английский

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Aquaculture Production in the Midst of GHG Emissions in South Africa

Water, Journal Year: 2023, Volume and Issue: 15(7), P. 1253 - 1253

Published: March 23, 2023

The study ascertained the relationship between aquaculture production and greenhouse gas (GHG) emissions in South Africa. used Autoregressive Distributed Lag—Error Correction Model (ARDL-VECM) with time series data 1990 2020. results showed that mean annual production, GHG emissions, Gross Domestic Product (GDP) period were 5200 tonnes, 412 US$447 billion, respectively. There was a long-run GDP. In short run, had positive GDP negative beef production. Furthermore, there bi-directional emissions. addition, relationship. Beef also concludes is affected tends to affect Aquaculture legislation should consider Africa promote sustainable techniques.

Language: Английский

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Investigating the environmental sustainability of a seabass and seabream aquaculture system in Portugal based on life cycle and nexus approaches

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 890, P. 164195 - 164195

Published: May 22, 2023

Aquaculture plays an essential role in supplying animal-source food and protein worldwide, this way contributing to several sustainable development goals. Notwithstanding this, the aquaculture sector's long-term environmental sustainability is a major concern due overall impacts. To date, best of authors' knowledge, assessments systems Portugal from perspective, nexus between resource consumption nutrition issues, are still lacking. This study bridges gap by analysing system comprehensive manner applying combining life cycle assessment resources–protein approaches. The results highlight feed as main factor responsible for total impact all categories selected, ranging 74 % 98 %. Climate change 2.88 kg CO2-eq per medium-size fish (functional unit). shows that 504.1 MJex needed obtain 1 edible protein, with high dependency on non-renewable resources (59 %), mainly oil by-product fuels used production. After identifying hotspots, potential strategies be adopted such reduction, eco-certification ecosystem-based management suggested, ensuring production sustainability.

Language: Английский

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Towards sustainable marine spatial planning of aquaculture

Ecological Indicators, Journal Year: 2023, Volume and Issue: 154, P. 110542 - 110542

Published: June 30, 2023

An efficient and adaptive strategy within the EU Marine Spatial Planning Directive has to manage existing increasing conflicts between human uses habitat conservation in coastal-marine areas. Among different activities developed along coasts, aquaculture occupies a primary role. In this context, aims of research have been: (1) propose conceptual model suitable for marine spatial planning; (2) collect integrate indicators useful characterization study area terms socio-ecological-economic sensitivities pressures; (3) identify map most areas development new fish shellfish farms. The is Apulia Region (Southern Italy) with coastline about 1,000 km, Adriatic Ionian Seas, characterized by several economic high value natural context. evaluation area's suitability farms been carried out through ecological coastal areas, identification socio-economic, ecological, cultural, legal-military constraints estimate "Suitability Index" that, Weighted Linear Combination, integrates environmental variables allows classify as "Highly Suitable", "Suitable" or "Unsuitable". "highly areas" are mainly located northernmost Southern Sea Gargano coast Gulf Manfredonia, whilst concerning Northern they at mean distance 5 Km from shoreline. maps shown that line their but, surprisingly, seemed not be true This can explained fact these traditionally present some (e.g., Taranto Seas), currently strongly impacted activities. highlighted despite generally conceived an impacting activity, it could also other and/or anthropic stressors (i.e., industrial ports, sewage discharges). Considering all elements, addresses decision-makers, providing information tools necessary plan more aware way, stakeholders interested investing sector, who benefit proposed sustainable sector.

Language: Английский

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Principle and Applications of Geographic Information System (GIS) in Coldwater Fisheries Development in India

Published: Jan. 1, 2024

Geographic information system (GIS) is an influential tool that integrates spatial and non-spatial data, facilitating efficient analysis, modelling, decision-making processes. Its significance in coldwater fisheries development critical, as it plays a crucial role achieving anticipated advancements the sector. The application areas of GIS are diverse encompass resource habitat mapping monitoring, aquaculture site selection, water quality assessment, fish disease watershed riparian management, climate change impact assessment. Effective management monitoring these parameters pivotal for advancement this sector, use remote sensing tools can accelerate This chapter provides comprehensive overview fisheries, discusses data acquisition methods GIS, presents detailed on its applications development. Additionally, addresses challenges technology faces outlines prospects. enables effective planning, conservation efforts, ultimately contributing to enhancement fisheries. Moreover, harnessing power empowers policymakers managers make informed decisions, implement sustainable practices, safeguard biodiversity productivity

Language: Английский

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The effects of acute ammonia stress on liver antioxidant, immune and metabolic responses of juvenile yellowfin tuna (Thunnus albacares)

Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, Journal Year: 2024, Volume and Issue: 297, P. 111707 - 111707

Published: July 20, 2024

Language: Английский

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