Potential macroalgal expansion and blue carbon gains with northern Antarctic Peninsula glacial retreat

Deregibus, Dolores; Campana, Gabriela Laura; Neder, Camila; Barnes, David K. A.; Zacher, Katharina; Piscicelli, Juan Manuel; Jerosch, Kerstin; Quartino, María Liliana

doi:10.1016/j.marenvres.2023.106056

Cited by 10 publications

(2 citation statements)

References 76 publications

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“…Maintaining and increasing blue carbon such as Caulerpa farming is one of the most basic strategies for combating global warming [152][153][154]. Due to regional warming, the northern Antarctic Peninsula is likely to experience macroalgal expansion and blue carbon gains as a result of glacial retreat [155]. Meanwhile, a natural methane (CH 4 ) emission from blue carbon ecosystems may counteract atmospheric CO 2 uptake [156].…”

Section: Currently Researched Topicsmentioning

confidence: 99%

A Systematic Review and Global Trends on Blue Carbon and Sustainable Development: A Bibliometric Study from 2012 to 2023

Pang,

Abdul Majid,

Perera

et al. 2024

Sustainability

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Halfway through Transforming Our World: The 2030 Agenda for Sustainable Development, only 15 percent of the goals have been reached. As a carbon storage and climate change mitigation mechanism, blue carbon is closely related to sustainable development goals and plays an important role in the global carbon cycle. In spite of its great potential, blue carbon still faces several challenges in terms of achieving the Sustainable Development Goals. Herein, this review aims to retrieve all known impacts of blue carbon on sustainable development through research published on the Web of Science from 2012 to 2023 using a sequence of bibliometric analyses. Keywords such as “blue carbon” and “sustain*” (including “sustainability”, “sustainable”, etc.) were used for article extraction. CiteSpace, a science mapping tool, was used to capture and visually present the bibliometric information in the research about blue carbon and sustainable development. Upon reviewing the existing literature, no study has concentrated on bibliometrically analyzing and visualizing studies about blue carbon and sustainable development. This study sets out to fill this gap by examining the key areas of concentration in published works on blue carbon and sustainable development from 2012 to date. Moreover, the integration of blue carbon and sustainable development may help to develop supportive policies for marine carbon sinks. Despite the valuable contribution of this study to the blue carbon and sustainable development body of knowledge, generalizations of the results must be made cautiously due to the use of a single database, which in this case is the Web of Science.

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Section: Currently Researched Topicsmentioning

confidence: 99%

A Systematic Review and Global Trends on Blue Carbon and Sustainable Development: A Bibliometric Study from 2012 to 2023

Pang,

Abdul Majid,

Perera

et al. 2024

Sustainability

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show abstract

“…The overall local effect of climate change on macroalgae is a net increase in their production (Deregibus et al 2023). It has been proposed that larger diversity in primary producers can support a more diverse food web with more specialized consumers (Iken et al 2023).…”

Section: Main Stressor Effects In Food Webs In a Southwest Atlantic -...mentioning

confidence: 99%

The response of trophic interaction networks to multiple stressors in a marine latitudinal gradient of the Southern Hemisphere

Marina,

Saravia,

Rodriguez

et al. 2024

Preprint

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Ecological networks offer valuable insights into community structure, key species identification, and ecosystem management for biodiversity conservation. Understanding how these networks react to environmental and anthropogenic stressors, especially along geographical gradients, is of increasing interest. This review presents a pioneering analysis of stressor responses in marine food webs from the southwest Atlantic to the Antarctic (45 - 78ºS), encompassing areas such as San Jorge Gulf, Beagle Channel, Burdwood Bank, Scotia Sea, Potter Cove, and the Weddell Sea in Antarctica. Our objectives are to: 1) describe the structure of marine food webs along this axis using a network approach; 2) identify predominant environmental and anthropogenic stressors affecting each ecosystem; and 3) summarize observed food web changes and hypothesize on stressor impacts. Our collaborative team, comprising regional experts and global authorities on high-latitude marine food webs and stressor effects, ensures a comprehensive and credible literature review. We assessed the effects of stressors primarily at the species level, with notable exceptions like fisheries in San Jorge Gulf. Hypotheses for each study area were formulated considering: a) stressors; b) impacted parameters; c) node-level species properties; and d) network-level food web properties. Global warming emerges as the most common stressor across the gradient, except in the Beagle Channel and Burdwood Bank, where alien species introduction and fisheries are more influential, respectively. We offer specific hypotheses on how warming may affect food webs. Our findings highlight the benefits of a network approach in understanding and predicting stressor effects in Southern Hemisphere marine ecosystems. This approach provides a holistic understanding of ecological networks, enhances our ability to identify key species and interactions, and offers insights for ecosystem management and conservation in the face of various stressors.

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Potter Cove's Heavyweights: Estimation of Species' Interaction Strength of an Antarctic Food Web

Rodriguez,

Saravia

2024

Ecology and Evolution

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In the West Antarctic Peninsula, global warming has led to severe alterations in community composition, species distribution, and abundance over the last decades. Understanding the complex interplay between structure and stability of marine food webs is crucial for assessing ecosystem resilience, particularly in the context of ongoing environmental changes. In this study, we estimate the interaction strength within the Potter Cove (South Shetland Islands, Antarctica) food web to elucidate the roles of species in its structure and functioning. We use these estimates to calculate food web stability in response to perturbations, conducting sequential extinctions to quantify the importance of individual species based on changes in stability and food web fragmentation. We explore connections between interaction strength and key topological properties of the food web. Our findings reveal an asymmetric distribution of interaction strengths, with a prevalence of weak interactions and a few strong ones. Species exerting greater influence within the food web displayed higher degree and trophic similarity but occupied lower trophic levels and displayed lower omnivory levels (e.g., macroalgae and detritus). Extinction simulations revealed the key role of certain species, particularly amphipods and the black rockcod Notothenia coriiceps, as their removal led to significant changes in food web stability and network fragmentation. This study highlights the importance of considering species interaction strengths in assessing the stability of polar marine ecosystems. These insights have crucial implications for guiding monitoring and conservation strategies aimed at preserving the integrity of Antarctic marine ecosystems.

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Potential macroalgal expansion and blue carbon gains with northern Antarctic Peninsula glacial retreat

Cited by 10 publications

References 76 publications

A Systematic Review and Global Trends on Blue Carbon and Sustainable Development: A Bibliometric Study from 2012 to 2023

A Systematic Review and Global Trends on Blue Carbon and Sustainable Development: A Bibliometric Study from 2012 to 2023

The response of trophic interaction networks to multiple stressors in a marine latitudinal gradient of the Southern Hemisphere

Potter Cove's Heavyweights: Estimation of Species' Interaction Strength of an Antarctic Food Web

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