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Most Cited

  • Systematic Review
  • Open Access
39 Citations
20,641 Views
31 Pages

The Abundance of Microplastics in the World’s Oceans: A Systematic Review

  • Judith Mutuku,
  • Maria Yanotti,
  • Mark Tocock and
  • Darla Hatton MacDonald

21 June 2024

Microplastics are ubiquitous in marine environments and have been documented across all ocean compartments, especially surface waters, across the world. Even though several studies identify the presence of microplastics in the world’s five ocea...

  • Article
  • Open Access
20 Citations
10,826 Views
14 Pages

Widespread Coral Bleaching and Mass Mortality of Reef-Building Corals in Southern Mexican Pacific Reefs Due to 2023 El Niño Warming

  • Andrés López-Pérez,
  • Rebeca Granja-Fernández,
  • Eduardo Ramírez-Chávez,
  • Omar Valencia-Méndez,
  • Fabián A. Rodríguez-Zaragoza,
  • Tania González-Mendoza and
  • Armando Martínez-Castro

4 April 2024

In May 2023, oceanic and atmospheric anomalies indicated El Niño conditions in the eastern Pacific, followed by coral bleaching in coral communities and reefs of Huatulco. We conducted surveys and sampled coral reef communities from late June...

  • Review
  • Open Access
12 Citations
6,657 Views
28 Pages

Blueprint for Blue Carbon: Lessons from Seychelles for Small Island States

  • Michael Bennett,
  • Antaya March,
  • Jeremy Raguain and
  • Pierre Failler

21 February 2024

Blue carbon has been proposed as a nature-based solution for climate change mitigation; however, a limited number of published works and data and knowledge gaps hinder the development of small island developing states’ (SIDS) national blue carb...

  • Feature Paper
  • Article
  • Open Access
12 Citations
10,021 Views
23 Pages

Baleen–Plastic Interactions Reveal High Risk to All Filter-Feeding Whales from Clogging, Ingestion, and Entanglement

  • Alexander J. Werth,
  • Shirel R. Kahane-Rapport,
  • Jean Potvin,
  • Jeremy A. Goldbogen and
  • Matthew S. Savoca

1 February 2024

Baleen whales are ecosystem sentinels of microplastic pollution. Research indicates that they likely ingest millions of anthropogenic microparticles per day when feeding. Their immense prey consumption and filter-feeding behavior put them at risk. Ho...

  • Article
  • Open Access
9 Citations
2,958 Views
28 Pages

2 December 2024

Mesozooplankton are highly responsive to environmental changes, making their population dynamics and species composition important indicators of large-scale oceanic conditions. This study investigates the mesozooplankton composition, emphasizing biom...

  • Article
  • Open Access
8 Citations
3,381 Views
26 Pages

Dense Water Formation Variability in the Aegean Sea from 1947 to 2023

  • Manos Potiris,
  • Ioannis G. Mamoutos,
  • Elina Tragou,
  • Vassilis Zervakis,
  • Dimitris Kassis and
  • Dionysios Ballas

26 August 2024

The formation of dense water in the Aegean Sea is important as it affects the deep circulation and the hydrography of the Eastern Mediterranean Sea. In this study, the variability of dense water formation is investigated in relation to forcing mechan...

  • Article
  • Open Access
6 Citations
2,999 Views
17 Pages

Characterization of Epoxy Adhesive for Marine Applications

  • Francisco J. Rodríguez-Dopico,
  • A. Álvarez García and
  • Javier Tarrío-Saavedra

2 December 2024

The shipping industry faces the challenge of expanding its capabilities and mitigating its environmental impact. The utilization of adhesive bonding techniques has the potential to facilitate the construction of lighter ships with a reduced carbon fo...

  • Article
  • Open Access
6 Citations
6,344 Views
17 Pages

Harbor Porpoise Aggregations in the Salish Sea

  • Dave Anderson,
  • Laurie Shuster,
  • Cindy R. Elliser,
  • Katrina MacIver,
  • Erin Johns Gless,
  • Johannes Krieger and
  • Anna Hall

8 August 2023

Harbor porpoises are typically seen in small groups of 1–3 individuals, with aggregations of 20+ individuals treated as rare events. Since the 1990s, the harbor porpoise population in the Salish Sea has seen a significant recovery, and an incre...

  • Article
  • Open Access
6 Citations
4,029 Views
19 Pages

Spatial Distribution and Contamination Level Assessment of Marine Sediment of the Safi Bay (Moroccan Atlantic Coast)

  • Abdenaim Minoubi,
  • Nezha Mejjad,
  • Khalid El Khalidi,
  • Mohammed Bouchkara,
  • Ahmed Fadili,
  • Mohamed Chaibi and
  • Bendahhou Zourarah

23 October 2023

This study assesses the spatial distribution and contamination level of heavy metals in Safi Bay surface sediments. In this order, 28 surface sediment samples were retrieved from the study area and analyzed using the x-fluorescence method. To assess...

  • Article
  • Open Access
6 Citations
4,412 Views
14 Pages

Plastic, It’s What’s for Dinner: A Preliminary Comparison of Ingested Particles in Bottlenose Dolphins and Their Prey

  • Leslie B. Hart,
  • Miranda Dziobak,
  • Randall S. Wells,
  • Elizabeth Berens McCabe,
  • Eric Conger,
  • Tita Curtin,
  • Maggie Knight and
  • John Weinstein

7 December 2023

Microplastic ingestion was reported for common bottlenose dolphins (Tursiops truncatus) inhabiting Sarasota Bay, FL, USA, a community that also has prevalent exposure to plasticizers (i.e., phthalates) at concentrations higher than human reference po...

  • Article
  • Open Access
6 Citations
4,192 Views
15 Pages

Seasonal Upwelling Conditions Modulate the Calcification Response of a Tropical Scleractinian Coral

  • Carlos E. Gómez,
  • Andrés Acosta-Chaparro,
  • Cesar A. Bernal,
  • Diana I. Gómez-López,
  • Raúl Navas-Camacho and
  • David Alonso

18 April 2023

Natural processes such as upwelling of deeper-water masses change the physical-chemical conditions of the water column creating localized ocean acidification events that can have an impact on the natural communities. This study was performed in a cor...

  • Article
  • Open Access
6 Citations
3,242 Views
18 Pages

15 April 2024

Deformable wave energy converters have significant potential for application as flexible material that can mitigate structural issues, while how to design the dimensions and choose an optimal deployment location remain unclear. In this paper, fully c...

  • Article
  • Open Access
6 Citations
5,403 Views
10 Pages

Artificial Reef Deployment Reduces Diving Pressure from Natural Reefs—The Case of Introductory Dives in Eilat, Red Sea

  • Nadav Shashar,
  • Asa Oren,
  • Re’em Neri,
  • Omer Waizman,
  • Natalie Chernihovsky and
  • Jenny Tynyakov

7 February 2024

Artificial reefs have been suggested as alternative dive sites to mitigate human pressure on natural reefs. Despite the conceptual appeal of artificial reefs, there is a paucity of empirical evidence regarding their effectiveness in achieving this ob...

  • Article
  • Open Access
5 Citations
6,486 Views
16 Pages

Status of Coral Reef Communities on the Caribbean Coast of Costa Rica: Are We Talking about Corals or Macroalgae Reefs?

  • Fabio Quezada-Perez,
  • Sebastián Mena,
  • Cindy Fernández-García and
  • Juan José Alvarado

20 September 2023

In the past decades, one of the most widely reported phenomena on Caribbean reefs is the general fall in coral cover and rise in macroalgae. Reefs with low coral cover and high macroalgal abundances are often presumed to provide poorer ecosystem func...

  • Article
  • Open Access
5 Citations
3,315 Views
15 Pages

The Effects of Tetrabromobisphenol A (TBBPA) on the Mussel Mytilus galloprovincialis: A Multi-Biomarker Approach

  • Sandra Copeto,
  • Sara Ganço,
  • Inês João Ferreira,
  • Marco Silva,
  • Carla Motta and
  • Mário Diniz

3 April 2024

Tetrabromobisphenol A (TBBPA) is a fire-retardant containing bromine, produced in large quantities worldwide and extensively used in several industrial products. This compound was identified as a potential contaminant of the environment, causing toxi...

  • Article
  • Open Access
5 Citations
5,296 Views
17 Pages

Characterizing the Tropical Cyclones Activity over Arabian Sea (1982–2021)

  • Abdulhaleem H. Labban,
  • H. M. Hasanean,
  • Ali Almahri,
  • Ali Salem Al-Sakkaf and
  • Mahmoud A. A. Hussein

4 November 2024

The current study looks at how the characteristics of Arabian Sea tropical cyclones (TCs) change over time. The results show that in the pre-monsoon (April–June) and the post-monsoon (October–December), the activity of TCs > 34 knots,...

  • Article
  • Open Access
5 Citations
3,423 Views
17 Pages

The Impact of Perfluorooctanoic Acid (PFOA) on the Mussel Mytilus galloprovincialis: A Multi-Biomarker Evaluation

  • Sandra Copeto,
  • Sara Ganço,
  • Inês João Ferreira,
  • Didier Sanchez,
  • Maria João Nunes,
  • Carla Motta,
  • Marco Silva and
  • Mário Diniz

5 November 2024

Perfluorooctanoic acid (PFOA) has been widely studied due to its environmental persistence and bioaccumulation potential, raising concerns about its effects on aquatic life. This research evaluates the impact of PFOA on the antioxidant defenses and s...

  • Article
  • Open Access
5 Citations
2,076 Views
20 Pages

8 January 2025

The Mediterranean Sea, a global biodiversity hotspot, faces significant threats that compromise its ecological health. While Marine Protected Areas (MPAs) play a crucial role in biodiversity conservation, their effectiveness is debated, and empirical...

  • Article
  • Open Access
4 Citations
3,516 Views
20 Pages

3 January 2024

Strandings caused by anthropogenic factors are one of the most worrying threats in relation to the conservation of cetacean species, and in the case of Chile, due to its geography and large extension of the coastline, monitoring and access to these e...

  • Article
  • Open Access
4 Citations
5,382 Views
18 Pages

Marine Biodegradability and Ecotoxicity of MWool® Recycled Wool Fibers: A Circular-Economy-Based Material

  • Serena Anselmi,
  • Francesca Provenza,
  • Tecla Bentivoglio,
  • Giuseppe Picerno,
  • Andrea Cavallo and
  • Monia Renzi

21 March 2023

Pollution of the marine environment by microfibers is considered a problem for ecosystem conservation. The amount of microplastic, localization of sources, and associated ecotoxicity are well known in the literature. Wastewater from washing machines...

  • Article
  • Open Access
4 Citations
4,459 Views
19 Pages

Volatile Organic Compounds Released by Oxyrrhis marina Grazing on Isochrysis galbana

  • Charel Wohl,
  • Queralt Güell-Bujons,
  • Yaiza M. Castillo,
  • Albert Calbet and
  • Rafel Simó

4 April 2023

A range of volatile organic compounds (VOCs) have been found to be released during zooplankton grazing on microalgae cultivated for commercial purposes. However, production of grazing-derived VOCs from environmentally relevant species and their poten...

  • Article
  • Open Access
4 Citations
3,672 Views
25 Pages

Spatial and Developmental Policy Directions Affecting Marine Spatial Planning in the Northern Aegean Sea, Greece

  • Anestis Gourgiotis,
  • Dionisia Koutsi,
  • Vasiliki Krommyda and
  • Anastasia Stratigea

23 July 2024

European strategic policy directions toward a sustainable blue economy have strengthened interest in maritime investments, thus increasing sectoral competition for marine space. Emerging repercussions out of such a rising interest need to be handled...

  • Article
  • Open Access
4 Citations
2,641 Views
15 Pages

30 November 2023

Sponges are increasingly recognized as ecologically important on coral reefs as scleractinian corals decline. Most sponge species can be divided into two symbiotic phenotypes which are characterized as high microbial abundance (HMA) or low microbial...

  • Article
  • Open Access
4 Citations
4,068 Views
10 Pages

3 September 2024

This study investigates the temporal trends and correlations between Saharan dust mass concentration densities (DMCD) and Sargassum concentrations (SCT) in the tropical North Atlantic. Average DMCD data for June, July, and August from 1980 to 2022, a...

  • Article
  • Open Access
4 Citations
2,702 Views
10 Pages

10 September 2024

The expansion of the invasive Asian macroalgae Rugulopteryx okamurae along the coasts of the Azores represents a significant challenge for local marine biodiversity. A promising approach to managing the biomass produced by this alien alga is to valor...

  • Article
  • Open Access
4 Citations
3,235 Views
22 Pages

Trajectory Planning of a Mother Ship Considering Seakeeping Indices to Enhance Launch and Recovery Operations of Autonomous Drones

  • Salvatore Rosario Bassolillo,
  • Egidio D’Amato,
  • Salvatore Iacono,
  • Silvia Pennino and
  • Antonio Scamardella

23 September 2024

This research focuses on integrating seakeeping indices into the trajectory planning of a mother ship in order to minimize risks during UAV (unmanned aerial vehicle) takeoff and landing in challenging sea conditions. By considering vessel dynamics an...

  • Article
  • Open Access
4 Citations
3,382 Views
13 Pages

5 August 2024

Submarine groundwater discharge (SGD) is a recognized contributor to the hydrological and biogeochemical functioning of coral reef ecosystems located along coastlines. However, the distribution, size, and thermal properties of SGD remain poorly under...

  • Article
  • Open Access
3 Citations
4,174 Views
15 Pages

A Demonstration of the Capability of Low-Cost Hyperspectral Imaging for the Characterisation of Coral Reefs

  • Jonathan Teague,
  • John C. C. Day,
  • Michael J. Allen,
  • Thomas B. Scott,
  • Eric J. Hochberg and
  • David Megson-Smith

23 August 2023

The use of hyperspectral imaging in marine applications is limited, largely due to the cost-prohibitive nature of the technology and the risk of submerging such expensive electronics. Here, we examine the use of low-cost (<5000 GBP) hyperspectral...

  • Communication
  • Open Access
3 Citations
3,275 Views
6 Pages

Novel Interaction between a Rabbitfish and Black Corals

  • Erika Gress,
  • Tom C. Bridge,
  • Justin Fyfe and
  • Gemma Galbraith

13 July 2023

Herbivorous fishes play important functional roles in coral reef ecosystems, and their influence on mediating competitive dynamics between corals and macroalgae is well studied. Nonetheless, direct interactions between herbivorous fishes and corals m...

  • Article
  • Open Access
3 Citations
4,174 Views
20 Pages

Comparative Microbial Community Analysis of Fur Seals and Aquaculture Salmon Gut Microbiomes in Tasmania

  • Erin D’Agnese,
  • Ryan J. McLaughlin,
  • Mary-Anne Lea,
  • Esteban Soto,
  • Woutrina A. Smith and
  • John P. Bowman

16 June 2023

In Tasmania, Australian fur seals (Arctocephalus pusillus doriferus) regularly interact with Atlantic salmon (Salmo salmar L.) aquaculture lease operations and opportunistically consume fish. The microbial communities of seals and aquaculture salmon...

  • Article
  • Open Access
3 Citations
3,391 Views
16 Pages

29 June 2023

The influence of environmental variables (oceanographic and climatic) on the catch rates of striped red mullet (Mullus surmuletus) by artisanal fishery was investigated using different time series models (Dynamic Factorial Analyses; Min-Max Factorial...

  • Article
  • Open Access
3 Citations
2,172 Views
13 Pages

28 November 2023

Gadolinium-based contrast agents (GBCA) are complexes, highly stable in vivo, used in magnetic resonance imaging (MRI), administered in patients and then eliminated via the renal system, passing through wastewater treatment plants (WWTP) before being...

  • Article
  • Open Access
3 Citations
3,247 Views
16 Pages

25 March 2024

Since reef-building corals rely on both heterotrophy and endosymbiotic dinoflagellate autotrophy to meet their metabolic needs, it is necessary to consider both food supply and light levels, respectively, when optimizing their cultivation ex situ. He...

  • Review
  • Open Access
3 Citations
6,053 Views
24 Pages

A Comparison between the Production of Edible Macroalgae Worldwide and in the Mediterranean Sea

  • Gorana Jelić Mrčelić,
  • Svjetlana Krstulović Šifner and
  • Vedrana Nerlović

3 July 2024

Macroalgae are beneficial for consumers and producers due to their high productivity, their chemical composition and their efficient cultivation without additional feed. Asia dominates global macroalgae production, while European production is still...

  • Comment
  • Open Access
3 Citations
1,755 Views
10 Pages

5 July 2024

In warm oligotrophic waters, photosymbiotic coral can flourish across a wide depth range (0–170+ m), extending to depths where light attenuates to ~0.1% of surface values. Conventional wisdom has long assumed that mixotrophic corals must increa...

  • Article
  • Open Access
3 Citations
2,144 Views
15 Pages

Hydrographic vs. Dynamic Description of a Basin: The Example of Baroclinic Motion in the Ionian Sea

  • Gian Luca Eusebi Borzelli,
  • Ernesto Napolitano,
  • Adriana Carillo,
  • Maria Vittoria Struglia,
  • Massimiliano Palma and
  • Roberto Iacono

6 June 2024

The Ionian Sea is a crucial intersection for various water masses in the Mediterranean. Its hydrography and dynamics play a significant role in the seawater budgets and biogeochemistry of the neighboring sub-basins. Multiple theories have been formul...

  • Systematic Review
  • Open Access
3 Citations
2,678 Views
20 Pages

20 August 2024

The forty-year-old Long-Term Ecological Research MareChiara (LTER-MC) program started on 26 January 1984, with fortnightly oceanographic sampling until 1991 and then, from 1995, with weekly sampling up to the present time. LTER-MC produced >150 pu...

  • Article
  • Open Access
3 Citations
2,298 Views
15 Pages

Phytoplankton Structure in a Coastal Region of the Eastern Entrance of the Gulf of California during La Niña 2022

  • Elizabeth Durán-Campos,
  • David Alberto Salas-de-León,
  • Erik Coria-Monter,
  • María Adela Monreal-Gómez and
  • Benjamín Quiroz-Martínez

10 September 2024

This paper assessed the phytoplankton structure and its relationship with the physical environment in the coastal region off Mazatlán, Mexico, in two seasons of 2022, a year in which a strong La Niña event took place: (1) the warmer (Au...

  • Article
  • Open Access
3 Citations
3,160 Views
11 Pages

5 August 2024

Shipping is a vital component of global trade. However, shipping activities have negative environmental impacts, including emissions to air and water. The Baltic Sea is severely affected by eutrophication, mainly due to nutrient inputs, especially ni...

  • Article
  • Open Access
3 Citations
2,523 Views
20 Pages

Integrated Multi-Biomarker Responses of Juvenile Zebra Seabream (Diplodus cervinus) to Warming and Acidification Conditions

  • Marta Dias,
  • Pedro Pousão-Ferreira,
  • Mário S. Diniz,
  • António Marques,
  • Rui Rosa,
  • Patrícia Anacleto and
  • Ana L. Maulvault

7 August 2024

The impacts of climate change-related stressors are becoming more noticeable in the ocean, particularly in coastal marine ecosystems. Yet limited information still exists on the physiological state and ecological resilience of marine fish species, es...

  • Article
  • Open Access
3 Citations
5,382 Views
15 Pages

16 October 2024

Recent years have seen a notable rise in dolphin-watching boat activities along the Algarve coast in Portugal, potentially affecting the common dolphin (Delphinus delphis) and bottlenose dolphin (Tursiops truncatus) local populations. This study exam...

  • Article
  • Open Access
3 Citations
2,591 Views
10 Pages

14 January 2025

This study was designed to investigate the impact of heat stress on the physiological changes and mortality rates of different life stages of the rhizostome jellyfish species Cassiopea xamachana, including planula larvae, scyphistomae (polyps), and m...

  • Review
  • Open Access
3 Citations
2,614 Views
26 Pages

Trade-Offs in Marine Policy Decisions Through the Lens of Literature

  • Joyce Dias Gois Rodrigues de Queiroz,
  • Débora Gutierrez and
  • Helena Maria Gregório Pina Calado

20 December 2024

The ocean is increasingly affected by the rise in maritime activities. Increased anthropogenic pressures have led to environmental impacts and also intensified competition for space and resources among various socioeconomic sectors. To mitigate these...

  • Article
  • Open Access
2 Citations
1,994 Views
14 Pages

Influencing Factors on Oyster Recruitment and Performance Evaluation for Oyster Reef Restoration in Tianjin Coastal Zones

  • Yuxuan Zhao,
  • Chen Yang,
  • Bo Zhang,
  • Yanping Li,
  • Jianbo Tu,
  • Fuxin Niu,
  • Wenliang Kong,
  • Zhiyun Wang and
  • Xianhua Liu

11 April 2025

Global oyster reefs have suffered severe degradation due to human activities, environmental pollution, and climate change. The construction of artificial reefs offers a promising strategy to enhance oyster recruitment and mitigate population decline....

  • Article
  • Open Access
2 Citations
2,509 Views
22 Pages

6 March 2025

This study analyzes the results of Port State Control (PSC) inspections carried out under the Paris Memorandum of Understanding between 2018 and 2022. Through a correspondence analysis, the most frequent deficiencies were identified according to the...

  • Perspective
  • Open Access
2 Citations
1,535 Views
8 Pages

31 July 2025

Global marine coastal aquaculture increased by 6.7 million tons in 2024, with whiteleg shrimp (Penaeus vannamei) dominating crustacean production. However, reliance on a single species raises sustainability concerns, particularly in the face of clima...

  • Article
  • Open Access
2 Citations
2,310 Views
29 Pages

Seasonal Macrofaunal Diversity in the Shells of Dead Pinna nobilis Linnaeus, 1758 in Southern Istria

  • Petra Burić,
  • Neven Iveša,
  • Adrian Brajković,
  • Ante Žunec,
  • Iris Matulja,
  • Ines Kovačić,
  • Andrej Jaklin,
  • Gioconda Millotti,
  • Paolo Paliaga and
  • Moira Buršić
  • + 2 authors

The shells of dead Pinna nobilis individuals are important habitats in sedimentary coastal ecosystems, yet their ecological role is poorly understood. This study investigated macrofaunal communities associated with 80 P. nobilis shells from Soline Ba...

  • Article
  • Open Access
2 Citations
5,268 Views
14 Pages

27 August 2023

The recruitment process is a fundamental step in population life cycles that determines survival, population demographic structure, and dynamics. The success of recruitment events repeated over successive years greatly affects the survival of long-li...

  • Article
  • Open Access
2 Citations
3,019 Views
16 Pages

31 July 2023

In the oceans, Chaetognatha can contribute significantly to the total zooplankton biomass (up to 10–30%). The genus Eukrohnia, the dominant Chaetognath genus in the western subarctic Pacific, includes E. hamata and E. bathypelagica. Although it...

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Oceans - ISSN 2673-1924