Article
Oceanography
J. S. Saranya, M. K. Roxy, Panini Dasgupta, Ajay Anand
Summary: This study investigates the genesis and trend of marine heatwaves (MHWs) in the Indian Ocean from 1982 to 2018 and their impact on the Indian summer monsoon. The findings suggest that the rapid warming in the Indian Ocean plays a critical role in increasing the number of MHWs, while El Nino has a prominent influence on their occurrence during the monsoon.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Article
Biodiversity Conservation
Jens M. Nielsen, Lauren A. Rogers, Richard D. Brodeur, Andrew R. Thompson, Toby D. Auth, Alison L. Deary, Janet T. Duffy-Anderson, Moira Galbraith, J. Anthony Koslow, R. Ian Perry
Summary: The impacts of climate warming and marine heatwaves on ecosystem dynamics in the Northeast Pacific Ocean are widespread, with larval fishes serving as sensitive indicators of environmental changes. Variations in ichthyoplankton abundances and species composition differ between marine ecosystems, and past major climate perturbations have led to synchronized shifts in ichthyoplankton assemblages. Understanding these dynamics can help in projecting future changes and improving ecosystem management decisions in the face of intensifying marine heatwaves.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Matthew McLean, David Mouillot, Aurore A. Maureaud, Tarek Hattab, M. Aaron MacNeil, Eric Goberville, Martin Lindegren, Georg Engelhard, Malin Pinsky, Arnaud Auber
Summary: As climate change progresses, species are moving towards the poles while subtropical and tropical species are entering temperate environments. The Community Temperature Index (CTI) has been widely used to track the mean thermal affinity of a community, showing an increase under global warming. However, this increase is not solely due to the rise in warm-affinity species, but also linked to the decrease in cold-affinity species. Tropicalization is more pronounced in warmer areas that have experienced greater warming, while deborealization is stronger in areas closer to human populations or with higher thermal diversity in the community.
Editorial Material
Environmental Sciences
Ashley M. Matheny
Summary: Vegetation dynamically responds to local microclimates, influencing carbon, water, and energy cycles. Differences in microclimate can induce structural and functional acclimations within ecosystems, highlighting the importance of comprehensive analyses of vegetation in its environment.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2021)
Article
Multidisciplinary Sciences
Charlotte Carrier-Belleau, David Drolet, Christopher W. McKindsey, Philippe Archambault
Summary: The increasing number and diversity of anthropogenic stressors in marine habitats have negative impacts on biological systems, biodiversity, and ecosystem functions. Methods to assess cumulative effects include experimental manipulations, which may identify non-linear responses. Salinity variation and nutrient enrichment had strong impacts on a bivalve assemblage, with effects varying through time and showing antagonistic interactions.
SCIENTIFIC REPORTS
(2021)
Article
Green & Sustainable Science & Technology
Salvador E. Lluch-Cota, Pablo del Monte-Luna, Helen J. Gurney-Smith
Summary: Climate change necessitates adaptive measures in food production systems, particularly in marine fisheries. Incremental adaptation has proven to be insufficient, thus transformative adaptation offers an opportunity for a timely transition towards climate-resilient conditions. Transformative adaptation in fisheries, taking into account past non climate change-oriented deep transformations and the unique attributes of marine fisheries, should be implemented locally and regionally but designed globally. Two transformational options are proposed: prioritizing food security and adopting a climate-responsive ecosystem approach for fisheries management. Successful adoption hinges on addressing scientific uncertainty, political will, risk perception, regulatory processes, and financial costs through international cooperation, information flow, stewardship mechanisms, and traceable compliance evidence.
CURRENT OPINION IN ENVIRONMENTAL SUSTAINABILITY
(2023)
Article
Biodiversity Conservation
Ryan R. Reisinger, Stuart Corney, Ben Raymond, Amanda T. Lombard, Marthan N. Bester, Robert J. M. Crawford, Delia Davies, P. J. Nico Bruyn, Ben J. Dilley, Stephen P. Kirkman, Azwianewi B. Makhado, Peter G. Ryan, Stefan Schoombie, Kim L. Stevens, Cheryl A. Tosh, Mia Wege, T. Otto Whitehead, Michael D. Sumner, Simon Wotherspoon, Ari S. Friedlaender, Cedric Cotte, Mark A. Hindell, Yan Ropert-Coudert, Pierre A. Pistorius
Summary: Climate change is expected to redistribute marine predator biodiversity in the Southern Indian Ocean, leading to shifts in habitat distribution and potential community-level changes. Despite variable species range shifts, current species co-occurrence patterns and future projections remain statistically similar. Conservation actions may be needed to offset projected habitat shifts and increase management efforts in the region.
DIVERSITY AND DISTRIBUTIONS
(2022)
Article
Oceanography
Matthew R. Palmer, Yohana W. Shagude, Michael J. Roberts, Ekaterina Popova, Juliane U. Wihsgott, Shankar Aswani, Jack Coupland, John A. Howe, Brian J. Bett, Kennedy E. Osuka, Colin Abernethy, Sofia Alexiou, Stuart C. Painter, Joseph N. Kamau, Ntahondi Nyandwi, Baraka Sekadende
Summary: The study tested the potential of marine robots for enhancing WIO marine research and assessed the readiness of local communities to adopt autonomous technologies. The findings revealed a positive change in attitudes towards marine robots, but highlighted the high cost and funding challenges associated with using these technologies.
OCEAN & COASTAL MANAGEMENT
(2021)
Article
Multidisciplinary Sciences
Shelby L. Ziegler, Jasmin M. Johnson, Rachel O. Brooks, Erin M. Johnston, Jacklyn L. Mohay, Benjamin I. Ruttenberg, Richard M. Starr, Grant T. Waltz, Dean E. Wendt, Scott L. Hamilton
Summary: Anthropogenic stressors from climate change can impact individual species, community structure, and ecosystem function. Marine heatwaves (MHWs), characterized by significantly elevated water temperature for five or more days, are projected to increase in frequency and severity. While marine protected areas (MPAs) may mitigate climate impacts on individual species, their ability to address large-scale changes in marine communities caused by MHWs is uncertain.
SCIENTIFIC REPORTS
(2023)
Article
Environmental Sciences
Zhan Ban, Xiangang Hu, Jinghong Li
Summary: The authors utilize machine learning models to identify multifactor tipping points of global marine phytoplankton. The study reveals that temperature and carbon dioxide are the key risks, and predicts that the tipping points of production and resistance in tropical areas will be crossed by 2100.
NATURE CLIMATE CHANGE
(2022)
Article
Environmental Sciences
Xiuwen Guo, Yang Gao, Shaoqing Zhang, Lixin Wu, Ping Chang, Wenju Cai, Jakob Zscheischler, L. Ruby Leung, Justin Small, Gokhan Danabasoglu, Luanne Thompson, Huiwang Gao
Summary: This study using a high-resolution Earth system model reveals that future intensity and annual days of marine heatwaves (MHWs) over large marine ecosystems (LMEs) will remain higher than in the present-day climate. The better resolution of ocean mesoscale eddies enables more realistic simulations of MHWs compared to low-resolution models. These findings suggest that the increasing MHWs under global warming pose a serious threat to LMEs.
NATURE CLIMATE CHANGE
(2022)
Article
Ecology
Scott Bennett, Julia Santana-Garcon, Nuria Marba, Gabriel Jorda, Andrea Anton, Eugenia T. Apostolaki, Just Cebrian, Nathan R. Geraldi, Dorte Krause-Jensen, Catherine E. Lovelock, Paulina Martinetto, John M. Pandolfi, Carlos M. Duarte
Summary: The study found that the impacts of marine exotic species on local ecosystems mainly occurred within the thermal environments of their original range, with the most significant impacts often occurring in slightly cooler locations than their origin. The impact of exotic species on local abundance displayed a hump-shaped relationship with temperature.
GLOBAL ECOLOGY AND BIOGEOGRAPHY
(2021)
Review
Oceanography
N. Sunanda, J. Kuttippurath, A. Chakraborty, R. Peter
Summary: Phytoplankton contribute significantly to global net primary productivity and are crucial for marine ecosystems and food security. Changes in ocean temperature, salinity, mixed layer depth, ocean heat content, pH, and dissolved oxygen are identified as key stressors for marine ecosystems. Future projections suggest that the North Indian Ocean's primary productivity will be affected by increases in sea surface temperature and freshening in high saline regions. The main factors influencing primary productivity vary between the present and future scenarios, with oxygen levels, mixed layer depth, and oxygen minimum zones being important in the present period, while salinity, oxygen levels, and oxygen minimum zones become more important in the future scenarios. The interaction between stressors and their impact on primary productivity varies in different regions, with circulation and currents playing a dominant role in some regions. Overall, this study provides new insights into the spatio-temporal changes in stressors and their impact on the primary productivity of the North Indian Ocean.
PROGRESS IN OCEANOGRAPHY
(2023)
Article
Environmental Sciences
N. Sunanda, J. Kuttippurath, R. Peter, Kunal Chakraborty, A. Chakraborty
Summary: The COVID-19 lockdown in India during the COVID-19 pandemic affected the Net Primary Productivity (NPP) in the North Indian Ocean, with decreased Aerosol Optical Depth, reduced wind speeds, increased Sea Surface Temperature and decreased NPP during the lockdown period.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Meteorology & Atmospheric Sciences
Yuxin Wang, Neil J. Holbrook, Jules B. Kajtar
Summary: By analyzing the ocean model simulation, it is found that La Nifia and the positive IOD are the major drivers of WA MHWs. The combination of these two climate modes leads to the highest likelihood of WA MHWs, which is 3.2 times higher than by chance.
JOURNAL OF CLIMATE
(2023)
Article
Ecology
Yoko Iwata, Noriyosi Sato, Noritaka Hirohashi, Yoshiro Watanabe, Warwick H. H. Sauer, Paul W. Shaw
Summary: The study found that different mating tactics in squid species can affect the quantitative and qualitative traits of male sperm, and the female's sperm storage mode and fertilization processes are important factors influencing this evolution; unlike consort males, sneaker males are more likely to face sperm competition risks; through adjustment of sperm packaging, different levels of sperm competition risk can be adapted to.
JOURNAL OF EVOLUTIONARY BIOLOGY
(2021)
Article
Oceanography
Fatma Jebri, Dionysios E. Raitsos, John A. Gittings, Zoe L. Jacobs, Meric Srokosz, Jessica Gornall, Warwick H. H. Sauer, Michael J. Roberts, Ekaterina Popova
Summary: Using satellite observations, this study uncovers the biophysical drivers of the lucrative chokka squid fishery in South Africa over the last two decades (1998-2017) and addresses their potential links with low squid catches. Chokka squid fishing is crucial to the economic wellbeing of local communities. However, the squid biomass is prone to considerable fluctuations, including abrupt declines with negative socio-economic impacts. These results show that the squid catch fluctuations are potentially predictable and could support policymakers seeking to improve their planning of adaptation strategies and risk mitigation.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2022)
Article
Oceanography
Sarah Asdar, Zoe L. Jacobs, Ekaterina Popova, Margaux Noyon, Warwick H. Sauer, Michael J. Roberts
Summary: Climate change poses significant threats to the Agulhas Bank fishery, particularly the chokka squid fishery. Our simulations show that increased sea surface temperature and current velocity may pose risks to squid recruitment and growth, while food availability is expected to have a minor impact.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2022)
Article
Oceanography
Sixolile L. Mazwane, Alex J. Poulton, Anna E. Hickman, Fatma Jebri, Zoe Jacobs, Mike Roberts, Margaux Noyon
Summary: This study examines the spatial and temporal dynamics of Net Primary Production (NPP) on Agulhas Bank (AB) using satellite-derived data. The results indicate that AB is a significant site of perennial moderate levels of NPP, with little interannual variability and a slight decline over time. These findings are important for understanding the ecosystem productivity of South African coastal fisheries.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2022)
Article
Oceanography
Zoe Jacobs, Mike Roberts, Fatma Jebri, Meric Srokosz, Stephen Kelly, Warwick Sauer, Jorn Bruggeman, Ekaterina Popova
Summary: The Agulhas Bank, off the coast of South Africa, is a vital area for fisheries due to its complex biophysical mechanisms. The presence of the "cold ridge" plays a crucial role in the productivity of the area and potentially impacts the recruitment of important species such as squid.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2022)
Article
Environmental Sciences
Fatma Jebri, Meric Srokosz, Zoe L. Jacobs, Francesco Nencioli, Ekaterina Popova
Summary: The combined application of machine learning and satellite observations provides a new method for analyzing complex ocean processes. In this study, the Self Organizing Maps (SOM) approach is used to explore the relationship between surface current variability and phytoplankton productivity in the Agulhas Bank. Four different patterns of the Agulhas Current (AC) system are identified, with the dominant mode being a southwestward flow along the shelf edge. The productivity of the AC system is influenced by these patterns, with strong upwelling associated with certain modes.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Oceanography
Zoe Jacobs, Stephen Kelly, Fatma Jebri, Michael Roberts, Meric Srokosz, Warwick Sauer, Lisa Hancke, Ekaterina Popova
Summary: Retention is vital for the survival of chokka squid, and particles released further to the west have the highest retention rate. Different variability modes of the Agulhas Current affect the retention rate.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2022)
Article
Environmental Sciences
Matthew Lee Hammond, Fatma Jebri, Meric Srokosz, Ekaterina Popova
Summary: Coastal upwelling is a vital process for ecological systems and fisheries, and this study proposes a methodology using remote sensing data and machine learning to detect and classify upwelling areas off the Somali coast. The approach shows promise in accurately identifying and analyzing the functioning of these important oceanographic features.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Oceanography
Lisa Hancke, Michael J. Roberts, David Smeed, Fatma Jebri
Summary: The formation of the cold ridge on the Agulhas Bank was investigated using various data sources including satellite-tracked drifters, in situ measurements, and satellite observations. The study found that the cold ridge is induced by coastal upwelling along the Tsitsikamma coast during austral summer, driven by easterly winds and westward flowing coastal currents. The formation of the cold ridge is influenced by Agulhas Current intrusions, as well as the passing of Natal Pulse, which leads to the generation of cyclonic eddies and advects water masses along the 100 m isobath.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2023)
Article
Fisheries
Steven J. Cooke, Elizabeth A. Fulton, Warwick H. H. Sauer, Abigail J. Lynch, Jason S. Link, Aaron A. Koning, Joykrushna Jena, Luiz G. M. Silva, Alison J. King, Rachel Kelly, Matthew Osborne, Julia Nakamura, Ann L. Preece, Atsushi Hagiwara, Kerstin Forsberg, Julie B. Kellner, Ilaria Coscia, Sarah Helyar, Manuel Barange, Elizabeth Nyboer, Meryl J. Williams, Ratana Chuenpagdee, Gavin A. Begg, Bronwyn M. Gillanders
Summary: A common goal among fisheries science professionals, stakeholders, and rights holders is to ensure the persistence and resilience of vibrant fish populations and sustainable, equitable fisheries in diverse aquatic ecosystems. The World Fisheries Congress (WFC) provides a global forum to discuss threats, issues, and opportunities facing fish populations and fisheries. The 2021 WFC meeting reflects on progress made in the past 30 years and identifies future needs and opportunities to improve sustainability in the world's fisheries.
REVIEWS IN FISH BIOLOGY AND FISHERIES
(2023)
Article
Marine & Freshwater Biology
J. M. Eggers, K. L. Cochrane, W. H. H. Sauer
Summary: This study analyzed the trends in income and employment opportunities of the west coast rock lobster fishery in South Africa. The fishery was found to contribute to the gross national income, but decreasing quotas had a negative effect on some representative individuals. The study suggests that a more extensive understanding of the socio-economic context of the fishery is needed for effective resource recovery and equitable distribution of fishing opportunities.
AFRICAN JOURNAL OF MARINE SCIENCE
(2022)
Article
Marine & Freshwater Biology
M. R. Lipinski, M. A. Mmethi, D. Yemane, J. Githaiga-Mwicigi, W. H. H. Sauer
Summary: Temporal trends in size composition and length-weight relationship of chokka squid on the south coast of South Africa were examined over a 22-year period. While no significant long-term changes were observed in mean lengths, there was a short-term drop in average length in certain years, possibly linked to the introduction of an additional closed season. Parameters of the length-weight relationship remained stable over the years, with males showing a higher prevalence of starvation compared to females, potentially due to spawning behavior.
AFRICAN JOURNAL OF MARINE SCIENCE
(2021)
Article
Oceanography
Ha-Kyung Kim, In-Hwan Cho, Eun-A Hwang, Young-Hyo Kim, Jeong-Suk Moon, Bae-Kyung Park, Baik-Ho Kim
Summary: This study investigated the distribution of diatoms in 324 estuaries on the Korean Peninsula from 2016 to 2018, with a focus on the ecological impact of artificial dams. The results highlighted the complex interactions between dams, land use, and diatom communities, providing important data for ecosystem management and biodiversity conservation. Understanding the consequences of artificial dams on diatom distribution is crucial for preserving estuarine health.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Tianhang Gao, Jia Tian, Chuan Huang, Hongyu Wu, Xing Xu, Changjian Liu
Summary: This study explores the microcontainer transport service and route selection problem within the context of a new transportation corridor. A multiobjective planning model is established to minimize transportation cost, time, and carbon emissions. The findings demonstrate that the New Western Land and Sea Corridor is appealing for time-sensitive cargoes and can enhance economic benefits with supportive policies.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Jintao Ma, Zhengjie Wu, Mengqian Guo, Qiuguang Hu
Summary: With the deepening of economic globalization and regional economic integration, marine fisheries are becoming increasingly connected to national strategic interests and economic vitality. It is necessary to explore the synergistic evolution of marine fisheries economic development, environmental protection, and technological progress in order to promote sustainable and healthy development of marine fisheries.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Wenhan Ren, Yuhan Xu, Jing Ni
Summary: This paper focuses on the key role of human economic activities in the evolution of ecological security from the perspective of eco-industrial symbiosis and constructs a symbiotic system of indicators considering human economic activities and all subsystems. The research findings reveal that in China's coastal areas, the socio-economic development index shows a stable upward trend, the environmental capacity index remains stable, and the ecological impact index shows a fluctuating and undulating trend.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Xiao Zhou
Summary: This study develops a spatial risk assessment approach for maritime transportation in China using machine learning and geospatial big data. The study identifies wave height, rainfall, and sea surface temperature as the most influential factors affecting navigational safety. It also analyzes the matching relationship between coastal search and rescue resources and maritime transportation risks.
OCEAN & COASTAL MANAGEMENT
(2024)
Review
Oceanography
X. Yang, Z. Y. Lin, W. J. Zhang, S. Xu, M. Y. Zhang, Z. D. Wu, B. Han
Summary: The study highlights the increasing importance of Arctic navigation safety and identifies gaps in the application of risk assessment methodologies. It calls for decision-oriented modelling techniques and bridging the gap between academic research and practical application.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Vladimir J. Alarcon, Anna C. Linhoss, Christopher R. Kelble, Paul F. Mickle, Alexandra Fine, Enrique Montes
Summary: Estuaries and coastal areas are undergoing rapid changes due to climate change and sea level rise. This research presents a salinity transport model for Biscayne Bay and investigates the potential impacts of altered precipitation, increased salinity/temperature, and sea level rise on bay salinity. The findings suggest that current restoration plans may not be sufficient to maintain current salinity conditions, and management measures such as urban greening, artificial groundwater recharge, and water consumption reduction should be considered.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Manuel Vargas-Yanez, Ana Reeves-Bueno, Sara Fernandez-Topham, Francina Moya, Enrique Ballesteros, Cristina Alonso, Teresa Perez-Sanchez, Patricia Romero-Fernandez, Silvia Sanchez-Aguado, Ricardo Felix Sanchez-Leal, M. Carmen Garcia-Martinez
Summary: This study analyzed the phytoplankton communities in the upper 100 m of the Gulf of Cadiz and the Alboran Sea using time series data. The results show that these two regions can be considered as two differentiated bioregions, with the latter having higher productivity.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Donna Dimarchopoulou, Ioannis Keramidas, Konstantinos Tsagarakis, Vasiliki Markantonatou, Ghassen Halouani, Athanassios C. Tsikliras
Summary: The study shows that spatiotemporal simulation modeling is an effective tool for investigating management options in ecosystem-based fisheries management. It demonstrates that fisheries restricted areas can help rebuild the biomass of exploited stocks, but their effectiveness depends on the size and location of the areas. The study also suggests that a parallel reduction in total fishing effort is necessary to achieve the highest benefits of protection.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Junita D. Karlsen, Ludvig Ahm Krag, Bent Herrmann
Summary: Fisheries management is transitioning from a single-species approach to an ecosystem-based approach to address the complexities of mixed-species fisheries. A dual compartment codend concept can provide a complex selectivity profile and allow for flexible adjustments at sea, improving compliance with management objectives.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Yi-Zhuo Zhang, Cheng Xue, Na Wang, Gang Chen
Summary: This paper evaluates typical coastal provinces and cities in China, constructing an evaluation indicator system and clarifying the regional differences in the sustainable development capacity of China's marine fisheries industry. The results show that Shandong Province and Fujian Province have advantages in sustainable development, while Tianjin, Hebei Province, and Shanghai have room for improvement.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Caimao Tan, Tiantian Qin, Junliang He, Yu Wang, Hang Yu
Summary: This study addresses the storage space allocation problem of container yards based on the dual-cycle operation mode. A mixed integer programming model is established to optimize container transportation distance. The results show that dual-cycle operation can decrease transportation distance and the space allocation method based on it is more effective than traditional methods. The study also provides management insights for container ports and suggests effective solutions for bottleneck problems.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Haye H. Geukes, Peter M. van Bodegom, Alexander P. E. van Oudenhoven
Summary: This study aims to identify and explore the information requirements at different stages of the decision-making process of coastal nature-based solutions (NbS). The study found substantial differences in information requirements across the decision-making stages, with values and indicators becoming more specific and concrete as the stages progressed. The study also suggests that future changes in the information required for decision-making on coastal NbS can be anticipated and prepared for.
OCEAN & COASTAL MANAGEMENT
(2024)