Alexander Turra

Alexander Turra
Oceanographic Institute, University of São Paulo · Biological Oceanography

PhD

About

311
Publications
114,312
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6,864
Citations
Citations since 2016
172 Research Items
5585 Citations
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201620172018201920202021202202004006008001,0001,200

Publications

Publications (311)
Article
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Litter pollution is a global concern, and identifying sources and pathways is crucial for proposing preventative actions. Existing models of plastic litter leakage to the environment have provided worldwide estimates at a country-based level, but only a few initiatives address subnational scales. Adding relevant parameters and improving models is n...
Book
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Given the complexity of current environmental challenges, such as climate change and biodiversity conservation and governance, the interdisciplinary approach to science has gained increased awareness and use in the global scientific community. Similarly, ocean sustainability is a topic of concern, often voiced in international fora. These discussio...
Book
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Esta coletânea reúne textos que detalham alguns dos principais conceitos, perspectivas e práticas sobre gestão e governança de praias. O livro deixa clara a mensagem sobre a importância ecossistêmica da praia, considerando seus atributos econômicos, sociais, ambientais e culturais, demonstrando também que a praia depende de uma gestão complexa que...
Article
Storm-stranded debris (i.e., wrack) are important components for the functioning of beach ecosystems. With the current increase in extreme storm events, beached wrack is expected to change globally. However, little is known about how different types of wrack can affect beach biodiversity. Here, we hypothesized that natural debris (algae and land-pl...
Article
Benthic indices have been widely used across different coastal ecosystems to assess ecological quality and detect anthropic impacts, but very few studies investigated their effectiveness on sandy beaches. Here, we evaluated and compared the efficacy of 12 assemblage-based benthic indices in assessing ecological quality in beaches, across a gradient...
Article
One of the most discussed aspects of the cost-effectiveness sampling of benthic macrofauna is the choice of the sieve mesh size. Although other studies have tested the cost-effectiveness of mesh-size choice, especially in estimating biodiversity, they largely overlook the effect on the perceived species-environment relationship. In this sense, this...
Article
Sandy beaches are increasingly squeezed due to the construction of backshore man-made structures (i.e., coastal armoring) and current global changes. Coastal armoring impacts beach sediment dynamics, inducing erosion and habitat loss, threatening biodiversity processes and the functional roles of sandy beach organisms. Here, we examine how the abun...
Article
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To assess how sandy beach biodiversity is influenced by the effects of environmental features and urbanization, we sampled the macrofauna in the whole across-shore gradient of 90 beach sites in Southeast Brazil. We found that morphodynamic features were the main drivers of macrobenthos, but urbanization-related variables, such as number of beachgoe...
Article
More than five decades ago, Environment Impact Assessment (EIA) emerged in domestic legislation as a tool to respond to increased human pressures on the natural realm. Although the theory and practice of conducting EIAs have evolved over the years, several shortcomings for an effective implementation remain, hampering it from consolidating as a too...
Article
Citizen science (CS) can help to tackle the emerging and worldwide problem of marine litter (ML), from collecting data to engaging different stakeholders. We reviewed what and how the scientific literature is reporting CS on ML to identify possible gaps to be improved. The 92 search results (separate occasions when 48 different CS initiatives were...
Chapter
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O capítulo aborda a poluição por plásticos de uso único no litoral brasileiro e nos oceanos, refletindo sobre o posicionamento do setor de turismo diante deste desafio global contemporâneo e urgente. O turismo tem duplo papel em relação à poluição plástica: é tanto gerador quanto afetado. São expostos o olhar internacional e a perspectiva brasileir...
Article
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Aim Understanding patterns and drivers of biodiversity are essential towards developing effective conservation strategies for shallow marine habitats broadly. However, little is known about the natural and anthropogenic factors that structure fish biodiversity of sandy beaches, one of the largest and most socio-economically valuable nearshore habit...
Article
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Classification of beaches into morphodynamic states is a common approach in sandy beach studies, due to the influence of natural variables in ecological patterns and processes. The use of remote sensing for identifying beach type and monitoring changes has been commonly applied through multiple methods, which often involve expensive equipment and s...
Article
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Evaluating effectiveness of marine No-take Zones (NTZ) can be cost or labor prohibitive, thus comparisons to nearby unprotected areas are typically lacking. Two NTZs were evaluated, the waters surrounding Ilha Anchieta State Park and Palmas Island in Ubatuba, São Paulo, Brazil, for species richness, diversity, and abundance of ichthyofauna, compari...
Article
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The globally accelerating environmental crisis calls for radical changes in the governance of ocean resources towards a more sustainable and socially equitable world. Transdisciplinary sustainability research and networked knowledge-to-action approaches are critical parts of this change. The effective application of such approaches still puzzles so...
Article
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Marine litter is a transversal issue that affects the environment and society in a multitude of ways. As such, solutions to this problem are complex and demand the engagement of multiple sectors of society. The São Paulo Strategic Plan for Monitoring and Assessment of Marine Litter (PEMALM) is the first public policy of its kind, seeking to establi...
Article
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Coastal climate change impacts challenge policy and decision makers to adopt more effective adaptation measures. The ecosystem-based management approach can shift adaptation towards a more holistic, integrated and sustainable path. However, as countries work on strategies to adapt to climate change, the questions of if and how such agendas consider...
Chapter
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O texto completo está disponível em: http://dx.doi.org/10.55333/rima-978-65-84811-08-9_021
Article
Impacts caused by human developments threaten environmental quality and health of coastal social-ecological systems. Integrated frameworks based on ecosystem processes and services (ES), such as Ecosystem-Based Management (EBM), are being proposed to estimate such changes and improve tools, as Environmental Impact Assessment (EIA). We used some ele...
Article
Tributyltin (TBT) contamination is a prominent issue in coastal areas. However, TBT contamination in sandy beaches, which dominate the seascape of some regions, is not well understood. Imposex monitoring in beach gastropods may help widen the spatial coverage of surveillance efforts to enforce TBT ban regulations. In this study, we assessed imposex...
Chapter
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O oceano sempre esteve em lugar de destaque na história da humanidade e, neste último século, tem estado em evidência pelo seu envolvimento em muitas transformações relacionadas à exploração dos recursos vivos e não-vivos, mudanças climáticas, destruição de habitats e poluição. Esse destaque ao meio marinho já não era sem tempo. (17) (PDF) O PERF...
Article
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Parasitism by isopods is a common phenomenon in marine fishes and may induce negative effects, especially in juvenile stages. The surf-zones of sandy beaches are an important nursery habitat for many fish species, including commercially important ones, and are structured by beach characteristics and human activities, which are suggested to influenc...
Article
Olivella minuta is an abundant gastropod and important consumer on beach food webs, whose feeding activity was recently demonstrated to be reduced when submerged. Our study aimed to test the interactive effects of water level and light in the activity of O. minuta. Experiments were conducted in the laboratory simulating four conditions: (1) Light,...
Technical Report
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Marine litter, including plastics and microplastics, is accumulating in the world’s oceans at an unprecedented rate. The volume of plastics currently in the oceans has been estimated at between 75 million and 199 million tons1. Found in sea floor sediments and on beaches, among many other locations globally, plastics are are becoming part of the Ea...
Article
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A implementação de políticas ambientais conservacionistas afronta o modo de vida de comunidades tradicionais que habitam em unidades de conservação (UC). Uma alternativa sustentável de sobrevivência para essas comunidades tem sido o Turismo de Base Comunitária (TBC), que integra atividades turísticas de valorização da cultura local com a preservaçã...
Article
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We used Brazil as a Global South case study to analyze the evolution of the coastal governance in a young and still unstable democracy. Based on twenty-five years of documentation related to a federal-level actor interaction hub named Coastal Management Integration Group (GIGERCO) we explored the opportunity context for the transformation of the Br...
Article
Increased rainfall has become a key threat in recent decades for subtropical coastal regions. On sandy beaches that are associated with streams and rivers, the intensification of freshwater inputs is expected to reduce the salinity of interstitial waters and affect benthic biodiversity. Large freshwater gradients are promoted by river mouths and al...
Article
The influence of short-term (daily) variation in environmental conditions (rainfall, wind, tide, river flow) on debris accumulation was examined on two beaches at an estuarine outlet. Sampling occurred over 60 consecutive days along two sections (Internal Area, IA; and External Area, EA) of the Paranaguá Estuary Complex's southern outlet, in Paraná...
Article
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Coastal ocean observing and modeling systems (coastal observatories), connected with regional and global ocean systems, improve the quality of information and forecasts for effective management of safe and sustainable maritime activities. The public availability of systematic and long-term information of the ocean is an engine for the Blue Economy,...
Article
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Beaches provide a range of ecosystem services (ES). They are increasingly impacted by climate change, among other stressors. Ecosystem-based management (EBM) is an approach to cope with a changing environment and ensure long-term ES Provision. Local managers may facilitate beach EBM implementation by integrating it into existing governance systems....
Data
Tabela evidenciando possibilidades de conexões entre os princípios da cultura oceânica e as competências específicas das Ciências da Natureza (Ensino Médio) da Base Nacional Comum Curricular brasileira/ Table showing possibilities of connections between the ocean literacy principles and the specific competences of Natural Sciences (High School) of...
Article
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Desde 2017, a Organização das Nações Unidas (ONU) prepara o lançamento da Década da Ciência Oceânica para o Desenvolvimento Sustentável (2021-2030). Com o lema “A ciência que precisamos para o oceano que queremos”, a campanha tem por objetivo, além de chamar atenção sobre a importância do oceano para o planeta, mobilizar cientistas de diferentes di...
Article
Surf zones of sandy beaches are crucial environments for numerous fishes but one of the most challenging habitats when it comes to sampling, due to high-energy currents and waves. In this study, we compared the efficiency of 2 methods currently used to sample the biodiversity of shallow surf zone fish communities: the traditional method of beach se...
Article
Marine plastic pollution is a global concern because of continuous release into the oceans over the last several decades. Although recent studies have made efforts to characterize the so-called plastisphere, or microbial community inhabiting plastic substrates, it is not clear whether the plastisphere is defined as a core community or as a random a...
Article
Full-text available
Multistakeholder engagement for building participatory public policies to tackle marine litter. Published on the ECO Magazine Special Issue on the UN Ocean Decade for Sustainable Development, p. 44-47. To access: http://digital.ecomagazine.com/publication/?i=707374&ver=html5&p=44
Article
Endangered species lists (or red lists) are important tools for species conservation, but if they are not supported by data and they are inappropriately applied, they can be sources of conflict. Here, we present and discuss the dilemma of the trigonal clam Tivela mactroides, a beach bivalve used as a subsistence, economic and recreational resource...
Article
While coastal management has been recognized as an urgent and strategic process since 1970s worldwide, it is still struggling to show robust outcomes in some countries and even among regions within countries. Coastal Ecological and Economic Zoning was proposed in 1988 as an integrated environmental and territorial management tool by the Brazilian N...
Chapter
The United Nations Sustainable Development Goal (SDG) 14 is known as “life below water” and focuses on the ocean. Among other aspects, it regards all forms of pollution, including marine debris. Here we discuss how one specific type of marine debris is a horizontal issue among this and other SDGs. Microplastics are categorized generally as plastic...
Preprint
Full-text available
Marine plastic pollution is a global concern because of continuous release into the oceans over the last several decades. Although recent studies have made efforts to characterize the so-called plastisphere, or microbial community inhabiting plastic substrates, it is not clear whether the plastisphere is defined as a core community or as a random a...
Article
Full-text available
A Correction to this paper has been published: https://doi.org/10.1007/s00267-020-01412-3
Article
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The concept of institutional interplay (i.e., the interaction between institutions) is critical if the challenges to multilevel governance are to be better understood and addressed. Drawing on the literature on institutional interplay, this paper develops an analytical approach to examine challenges to multilevel coastal governance. São Paulo Macro...
Article
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Social participation enriches decision-making and is considered a civil right in many democratic countries, despite remaining a challenge. This paper presents evidence and discusses the evolution of social participation in the Araçá Bay (Southeastern Brazil), as a result of participatory action-research. Over three years, a process of social mobili...
Article
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Recognition of ecosystem-based management principles in key documents of the seabed mining regime: implications and further recommendations. New human uses on the marine environment, such as deep-sea mining (DSM), have necessitated the adoption of more holistic approaches such as ecosystem-based management (EBM) to secure sustainable development. T...
Article
In the context of global environmental changes, sea level rise is expected to cause long-term floods in upper zones of sandy beaches, while increased rainfall may intensify freshwater floods with extreme salinity reductions. However, the effects of these changes on benthic macrofauna behavior, especially the species vertical displacement, remain la...
Article
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Understanding how microplastic particles move and accumulate within estuarine and coastal waters requires consideration of primary inputs (e.g., raw materials from industrial zones) as well as secondary inputs resulting from fluvial processes (i.e., materials carried into coastal waters by rivers and streams). This study presents a novel approach t...
Article
This paper analyses the perception of Brazilian high-level ocean-related governmental authorities in charge of steering future pathways for the national ocean economy. We adapted and applied a model for evaluating sustainability transition experiments to visualize what ought to be the ingredients of an experimental agenda focused in advancing the c...
Article
The main ecological hypotheses on spatial patterns of intertidal sandy beach populations predict that they are mainly influenced by morphodynamic features, with most population parameters (e.g., number of individuals, reproductive effort, recruitment rates) increasing from wave-dominated reflective to wave-dominated dissipative beaches. Yet, these...
Article
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Microplastic contamination of coastal environments is a global problem and pellets used in industrial processes are a persistent and worldwide form of microplastic pollution. Regions that host port and petrochemical facilities are well known sources of plastic pellets to local and adjacent coastal areas. This study assessed pellet densities over re...
Article
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O maniqueísmo do título deste artigo antecipa o interesse em aqui analisar as particularidades da polarização da zona costeira em uma escala espacial mais abrangente. Tal análise é feita sob a ótica do ordenamento territorial, da abordagem ecossistêmica e da governança ambiental, e considera os fluxos e dinâmicas incidentes sobre a zona costeira em...
Article
Full-text available
Human demands and activities introduce cross-scale pressures in different systems and scales, affecting the provision of ecosystem services and causing an unbalanced effect on human well-being within the territory. The existing institutions are frequently considered panaceas since they do not take into account the different spatial and jurisdiction...
Article
Olivella minuta is an abundant neogastropod on sandy beaches from Texas (USA) to southern Brazil. This study aimed to characterize and compare the feeding activity and diet of a Brazilian population of O. minuta in different tidal zones (intertidal and subtidal), and different tidal levels (high and low tides), with three combinations of tidal zone...
Presentation
Full-text available
Um Mar de Lixo: A água dos mares, rios e lagos é fundamental na história da humanidade. Ao logo dos séculos, mas especificamente após a revolução industrial, os avanços da sociedade originaram uma série de impactos negativos no meio ambiente. Um desses problemas é o lixo marinho, que entre tantos males, coloca diretamente em risco a vida de diversa...
Article
Scientific studies have demonstrated the usefulness of benthic foraminifera as bioindicators to assess the health of marine, coastal, and transitional ecosystems. Similar to macrofauna, these organisms are reliable proxies for biomonitoring. Despite recent scientific advances, Brazilian official monitoring plans using biotic indices on coastal and...
Technical Report
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O projeto foi uma parceria entre o Ministério do Meio Ambiente (MMA), Universidade Federal do Rio Grande (FURG), Universidade de São Paulo (USP) e Universidade do Vale do itajaí (UNIVALI). O objetivo deste projeto foi realizar uma avaliação quali-quantitativa dos processos de elaboração e implementação dos zoneamentos costeiros já conduzidos no paí...
Article
A persistent challenge to managing coastal wetlands in a way that will mitigate climate impacts is understanding how soil organic carbon (Corg) stocks change over spatial and temporal scales. This study tested how seasonal change in riverine flows and soil biogeochemical attributes (grain-size, degree of wave disturbance and microphytobenthic produ...
Article
In his News In Depth story “Mystery oil spill threatens marine sanctuary in Brazil” (8 November 2019, p. 672), H. Escobar highlights important ecosystems that have been affected by the spill. However, he did not mention the Brazilian rhodolith beds—the most extensive, abundant, and diverse biogenic carbonate habitats in the South Atlantic. The oil...
Article
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The complexity of human-environment interactions in coastal areas represent management challenges, especially in the beach environment, important for its ecosystem services and contribution to human well-being. To overcome these challenges, ecosystem-based management proposes a more holistic and integrated approach, with a great contribution from s...
Article
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Ocean acidification (OA) poses a major threat to marine animals, especially marine shelled invertebrates such as molluscs. Although many organisms are capable of compensating for the effects of OA, this can impose physiological costs and impact performance (e.g. through increased metabolism and decreased growth). Sublethal injuries on shells may pr...
Article
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In August 2019, an oil spill incident washed the coast in Brazil affecting some of the country’s most visited and preserved beaches in Northeast and Southeast. This paper argues that the influence of power disconnects delayed the proper actions. Power disconnects occur when the victims of environmental harm (residents of northeastern and southeaste...
Article
The loss of canopy‐forming seaweeds from urbanised coasts has intensified in response to warming seas and non‐climatic pressures such as population growth and declining water quality. Surprisingly, there has been little information on the extent of historical losses in the South‐western Atlantic, which limits our ability to place this large marine...
Article
The impacts of ocean acidification remain less well-studied in starfish compared to other echinoderm groups. This study examined the combined effects of elevated pCO2 and arm regeneration on the performance of the intertidal predatory starfish Asterias rubens, as both are predicted to come at a cost to the individual. A two-way factorial experiment...
Article
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The health of the ocean, central to human well-being, has now reached a critical point. Most fish stocks are overexploited, climate change and increased dissolved carbon dioxide are changing ocean chemistry and disrupting species throughout food webs, and the fundamental capacity of the ocean to regulate the climate has been altered. However, key t...
Article
Synthetic fibers represent one of the main forms of microplastics in marine environment and recently were related to household washings as a source. Although other types of fiber, like natural, do not rely under this classification, there is a potential for them to act as a vector of toxic substances to biota in the same way as microplastics do. Co...
Article
Marine gastropods exert a strong influence on the structure of marine ecosystems through their foraging activities, yet little is known about how environmental differences in space and time may affect their feeding behavior. To enhance the knowledge about the trophic ecology of coastal benthic species, we investigated temporal and spatial variation...
Article
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A growing number of studies suggest a participatory ecosystem approach to support decision-making toward resilience and sustainability in social-ecological systems. Social-ecological resilience (SER) principles and practices are recommended to manage natural crises. However, it is necessary to broaden our understanding of SER on human-induced distu...