Publications by authors named "KL Nash"
Article Synopsis
- * A comprehensive database analyzed trade from 1996 to 2020, revealing a 40% increase in the share of aquatic food production that is exported, while global consumption rose by 19.4% despite a decline in marine capture consumption.
- * The findings help identify sustainable dietary options within aquatic foods and shed light on the complex role of trade in evolving aquatic food systems, especially as some regions depend more on imported sources.
There is ongoing interest in the rapid, reproducible production of 2-dimensional (2-D) transition metal dichalcogenides (TMD), such as molybdenum-based TMD (MoX), where X is a chalcogen atom such as sulphur (S), selenium (Se) or tellurium (Te), driven by their unique optical and electronic properties. Once fabricated into an atomically thin layer structure, these materials have a direct-indirect bandgap transition, strong spin-orbit coupling, and favourable electronic and mechanical strain-dependent properties which are attractive for electronics. Pulsed laser ablation in liquid (PLAL) is an economic, green alternative for synthesis of TMD.
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- Food production of fed animals, like broiler chickens and salmon, significantly contributes to global environmental degradation, necessitating effective food policies for sustainability.* -
- The study highlights that farming broiler chickens impacts nine times more land area than salmon, though chickens produce 55 times the output, with a large concentration of environmental pressures in specific locations.* -
- Shared feed ingredients are a major contributor to environmental pressures in both sectors, indicating a crucial area for improvement in reducing ecological footprints and promoting sustainability through integrated food policies.*
Article Synopsis
- Coral reef fisheries face sustainability threats from social and ecological challenges, mainly driven by climate change, which impacts their role in food and nutrition security.
- Warming oceans may change fish nutrient levels through both direct effects (like metabolism) and indirect effects (such as shifts in habitats and species distributions).
- Future research should focus on evaluating not just the quantity of fish available but also their nutritional quality, using biological traits to predict how climate impacts nutrient availability in coral reef food webs.
Article Synopsis
- Wild-caught fish can significantly improve the diet quality of billions if managed correctly, but nutritional aspects have often been overlooked in fisheries policies.
- The concept of multispecies Maximum Nutrient Yield (mMNY) is proposed to optimize nutrient production while balancing catch levels and species vulnerability in fisheries.
- Analysis indicates that enhancing nutrient yields, particularly for crucial vitamins like D, can support food security by integrating nutritional goals into existing fisheries management strategies.
Article Synopsis
- Fish are crucial for providing essential nutrients and fatty acids, helping to reduce dietary deficiencies globally.
- Research indicates that foreign fishing activities contribute more nutrients to nutrient-secure countries compared to international fish trade, with both practices benefiting these nations disproportionately.
- To effectively tackle nutrient deficiencies, it's essential to prioritize nutritional goals in fisheries licensing and trade discussions, especially considering the vulnerabilities of certain nations due to climate change impacts.
Article Synopsis
- Coastal population growth affects both ocean health and human well-being, leading to a need for better interactions while reducing negative impacts.
- Two future scenarios are proposed: a "Business-as-Usual" scenario based on current trends, and a more sustainable scenario focused on aligning with Sustainable Development Goals.
- Achieving the sustainable scenario involves improving marine citizenship, equitable resource distribution, enhanced communication, trusted stakeholder relationships, economic incentives for sustainability, and stronger regulations for ocean and human health.
Unlabelled: Food from the sea can make a larger contribution to healthy and sustainable diets, and to addressing hunger and malnutrition, through improvements in production, distribution and equitable access to wild harvest and mariculture resources and products. The supply and consumption of seafood is influenced by a range of 'drivers' including ecosystem change and ocean regulation, the influence of corporations and evolving consumer demand, as well as the growing focus on the importance of seafood for meeting nutritional needs. These drivers need to be examined in a holistic way to develop an informed understanding of the needs, potential impacts and solutions that align seafood production and consumption with relevant 2030 Sustainable Development Goals (SDGs).
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- Improved ocean literacy is crucial for achieving global sustainable development goals by 2030, but challenges like urbanization and socio-economic disparities hinder public engagement with ocean environments.
- The Future Seas project aims to synthesize knowledge from various fields to enhance ocean literacy, focusing on education, cultural connections, technology, and knowledge exchange as key drivers of societal connection to the ocean.
- The creation of an ocean literacy toolkit is proposed as a practical resource to foster better perceptions of the ocean and encourage widespread support for effective ocean management and conservation.
Article Synopsis
- The oceans are facing complex challenges that negatively impact society, causing a sense of powerlessness in addressing these issues.
- Future Seas is an initiative that brings together diverse researchers and stakeholders to create scenarios addressing these challenges and envision sustainable futures through interdisciplinary collaboration.
- The project emphasizes the importance of integrating different perspectives and exploring connections between ocean health and the UN's Sustainable Development Goals to develop actionable pathways for a more sustainable future.
Article Synopsis
- Addressing unexpected events and uncertainty is a major challenge in today's world, where ecosystem management struggles due to outdated policies that can't keep up with rapid environmental changes.
- Managing by only meeting basic regulatory standards has often led to negative consequences, highlighting the need for new strategies to tackle complex social-ecological issues.
- A project in the US Great Plains used the panarchy framework, rooted in resilience theory, to combat grass-to-tree dominance changes, reflecting both the effectiveness of this approach and its potential to inspire policy reform compared to conventional management techniques.
Fishing is a strong selective force and is supposed to select for earlier maturation at smaller body size. However, the extent to which fishing-induced evolution is shaping ecosystems remains debated. This is in part because it is challenging to disentangle fishing from other selective forces (e.
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- * Fish are a vital source of essential nutrients but are often overlooked; understanding their nutrient composition could help address food and nutrition security issues.
- * The study reveals that specific environmental conditions and fish species characteristics influence nutrient levels, indicating that enhancing fish-based food strategies could greatly benefit populations with inadequate nutrient intake, particularly children.
Without drastic efforts to reduce carbon emissions and mitigate globalized stressors, tropical coral reefs are in jeopardy. Strategic conservation and management requires identification of the environmental and socioeconomic factors driving the persistence of scleractinian coral assemblages-the foundation species of coral reef ecosystems. Here, we compiled coral abundance data from 2,584 Indo-Pacific reefs to evaluate the influence of 21 climate, social and environmental drivers on the ecology of reef coral assemblages.
View Article and Find Full Text PDFThe formation of an aqueous ternary complex was investigated in the malonate-based Advanced TALSPEAK system by solvent extraction and optical spectroscopy. Features of the spectroscopy confirmed the presence of a ternary complex between malonate, HEDTA, and the trivalent americium or lanthanide ion. The ternary complex was then incorporated into a solvent extraction model to refine stability constants under Advanced TALSPEAK conditions.
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- The study discusses the importance of recognizing patterns across different scales in analyzing complex systems, emphasizing that discontinuity approaches can help identify these scales and improve our understanding of resilience in various contexts.
- It highlights the current limitations of existing discontinuity methods, such as their subjectivity and computational challenges, which necessitate a simpler and clearer alternative.
- The researchers introduce a new method for detecting discontinuities in census data through resampling a neutral model, and they provide the relevant R code, aiming to enhance both fundamental and applied ecological research.
Article Synopsis
- The cross-scale resilience model explains how ecological resilience arises from the distribution of species' functions across different spatial and temporal scales, offering a quantitative approach in a mostly qualitative field.
- While the model considers where and when species are present and their roles, it overlooks the abundance of species and their functions in assessing resilience.
- The authors propose incorporating species abundance into the model and outline testable hypotheses to better understand and measure ecological resilience in the context of rapid global changes.
Article Synopsis
- - Coral reefs are crucial for food and livelihoods for millions, but they are threatened by issues like overexploitation and climate change, including warming and acidification from rising CO2 levels.
- - The review highlights the need for improved management practices, including climate change-ready marine protected areas (MPAs), and emphasizes the importance of reducing local stressors and encouraging sustainable ecosystems.
- - It concludes that to effectively support coral reef resilience against climate change, coordinated efforts involving diverse stakeholders and significant carbon emission reductions are essential.
Background: is a major opportunistic fungal pathogen. One of the most important virulence factors that contribute to the pathogenesis of candidiasis is its ability to form biofilms. A key characteristic of biofilms is their resistance to antifungal agents.
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- The planetary boundaries framework is shaping international environmental policy discussions, but it primarily focuses on land systems, neglecting marine ecosystems.
- Integrating marine perspectives into the framework can enhance understanding of risks associated with crossing these environmental limits.
- Addressing marine systems is crucial for effectively using the planetary boundaries concept in managing Earth system governance.
Article Synopsis
- - Fisheries and aquaculture are vital for global food security, nutrition, and livelihoods, but the UN's Sustainable Development Goals treat marine and terrestrial food systems separately, making it essential to recognize their interconnections.
- - Countries reliant on fisheries face unique challenges related to climate change, which could worsen outcomes in both fisheries and agriculture, requiring strategies that consider the trade-offs between food production, biodiversity, and climate goals.
- - To address these challenges, particularly in nations with low adaptive capacity, effective governance, improved management, innovative food production methods, and equitable resource distribution are necessary for sustainable development.
Functional diversity is thought to enhance ecosystem resilience, driving research focused on trends in the functional composition of fisheries, most recently with new reconstructions of global catch data. However, there is currently little understanding of how accounting for unreported catches (e.g.
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- The human population is projected to reach 10 billion by 2050, increasing demand for animal protein and stressing natural resources, making sustainable food production crucial.
- Traditional approaches to agriculture and fisheries have often focused on individual sectors, ignoring the important connections between land and sea food systems that could lead to unexpected consequences.
- To enhance sustainability, it's essential to understand interactions across food systems and improve both production and consumption efficiency, while integrating research and policies that consider these complex land-sea relationships.