Article
Food Science & Technology
Dabor Resiere, Jonathan Florentin, Hossein Mehdaoui, Zakaria Mahi, Papa Gueye, Didier Hommel, Jean Pujo, Flaubert NKontcho, Patrick Portecop, Remi Neviere, Hatem Kallel, Bruno Megarbane
Summary: Ciguatera poisoning is a common cause of marine poisoning associated with fish consumption in tropical areas. This study provides a description of the clinical characteristics, management, and outcome of CP in Martinique. The findings show that CP is mainly caused by the ingestion of certain fish, such as trevallies, and that supportive management is effective in most cases.
Review
Marine & Freshwater Biology
M. Chinain, C. Gatti Howell, M. Roue, A. Ung, K. Henry, T. Revel, P. Cruchet, J. Viallon, H. T. Darius
Summary: Ciguatera Poisoning (CP) is a prevalent seafood poisoning in French Polynesia, caused by seafood contaminated with ciguatoxins produced by Gambierdiscus. The toxin production of Gambierdiscus varies considerably in the natural environment, and certain areas represent biodiversity hotspots. G. polynesiensis is suggested as the primary source of CTXs in local ciguateric environments. Both herbivores and carnivores have high prevalence of ciguatoxic fish. While CP cases seem to decline overall, some islands still have dangerously high incidence rates. Effective risk management strategies should account for the cultural impact of CP on local communities.
Article
Food Science & Technology
Clemence Mahana Iti Gatti, Kiyojiken Chung, Erwan Oehler, T. J. Pierce, Matthew O. Gribble, Mireille Chinain
Summary: This study analyzed medical files of 49 patients to better understand chronic ciguatera manifestations and identify potential predictive factors for their duration. The study found age, tobacco consumption, acute bradycardia, laboratory measures of urea, and neutrophils to be significant predictors of symptoms lasting >= 3 months. This exploratory study contributes to the development of ciguatera epidemiology by narrowing down the predictors worth further investigation.
Review
Food Science & Technology
Da-Zhi Wang, Ye-Hong Xin, Ming-Hua Wang
Summary: Gambierdiscus, a widely distributed dinoflagellate genus in tropical and subtropical regions, produces potent toxins that pose a significant threat to human health and the environment. The expansion of CFP worldwide in recent years, due to human activities and global climate change, has resulted in increased human illness, greater public health impact, and larger economic losses. This review summarizes recent advances in the field of Gambierdiscus and its associated toxins, and provides future perspectives on this important issue.
Article
Environmental Sciences
Prisca Lim, Avery B. Paxton, J. Christopher Taylor, Nathan S. Hall
Summary: Epiphytic microalgae play an important role in carbon and nutrient cycles but are often overlooked. This study investigated the epiphyte community on natural and artificial reef sites and found that composition was influenced by substrate materials and seaweed hosts. The harmful benthic dinoflagellate, Gambierdiscus spp., had low abundance but natural reefs would likely be preferentially colonized if conditions became appropriate.
FRONTIERS IN MARINE SCIENCE
(2023)
Review
Food Science & Technology
Panagiota Katikou
Summary: Digital technologies and open data sources play a crucial role in the field of food safety, especially in addressing risks related to Ciguatera Fish Poisoning. However, challenges such as discrepancies in terminology, source fragmentation, and underutilization of social media exist in their utilization, highlighting the need for future research to address these gaps.
Article
Chemistry, Medicinal
Helene Taiana Darius, Taina Revel, Philippe Cruchet, Jerome Viallon, Clemence Mahana iti Gatti, Manoella Sibat, Philipp Hess, Mireille Chinain
Summary: In 2003, cases of ciguatera poisoning linked to the consumption of deep-water fish occurred in the Gambier Islands, French Polynesia. A study in 2004 found significant levels of ciguatoxins in deep-sea fish samples, leading to the discovery that deep-water fish may act as potential vectors for ciguatera poisoning. This highlights the importance of systematic monitoring of ciguatoxins in all exploited fish species, especially in hotspots like the Gambier Islands.
Article
Environmental Sciences
Li Li, Shuang Chen, Si-yuan Xu, Da-wei Li, Wei-dong Yang
Summary: This study investigated the toxicity of Gambierdiscus caribaeus on marine medaka and found that direct or indirect exposure to G. caribaeus through the food chain can affect the behavior of marine medaka and cause pathological damage to its tissues. Transcriptome sequencing and RT-qPCR analysis revealed that G. caribaeus exposure triggers physiological and biochemical responses in marine medaka.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Food Science & Technology
Christopher R. Loeffler, Astrid Spielmeyer, Vincent Blaschke, Dorina Bodi, Oliver Kappenstein
Summary: Consuming seafood contaminated with ciguatoxins (CTXs) can cause ciguatera poisoning (CP), a common seafood-related illness worldwide. The southwestern coast of India has been identified as a major source of seafood responsible for isolated and widespread CP outbreaks since 2015, affecting both local and global populations. This study investigates and describes a CP outbreak in the Netherlands linked to frozen snapper (Lutjanus bohar) imported from southwest India, providing detailed information on the production chain, catch region, toxin-group, and subsequent actions taken in response to the outbreak. This in-depth traceback investigation sheds light on the CP outbreak in a region of coastal India with a significant seafood industry and limited CP data available.
Article
Marine & Freshwater Biology
Aletta T. Yniguez, Po Teen Lim, Chui Pin Leaw, Steffiana J. Jipanin, Mitsunori Iwataki, Garry Benico, Rhodora Azanza
Summary: The frequency and duration of harmful algal blooms in the Philippines increased in the early to mid-1990s but have since stabilized, while the number of affected sites continues to expand. Malaysia did not show an increasing trend in toxic blooms over the past thirty years but other harmful algal species have become a concern. The diversity of toxic algal species and blooms in both countries is a growing trend.
Article
Food Science & Technology
Jimaima Veisikiaki Lako, Sereima Naisilisili, Veikila C. Vuki, Nanise Kuridrani, Dominic Agyei
Summary: This paper investigates and documents traditional ecological knowledge (TEK) in managing fish poisoning in Fiji. The study identifies and classifies six TEK topics as preventative and treatment options. The research highlights various measures such as identifying toxic reef fishes, locating toxic hotspots, and using herbal plants for treatment.
Article
Toxicology
Luc de Haro, Corinne Schmitt, Sandra Sinno-Tellier, Nathalie Paret, David Boels, Gael Le Roux, Jerome Langrand, Nicolas Delcourt, Magali Labadie, Nicolas Simon
Summary: Ciguatera fish poisoning (CFP) is common in tropical countries, including in French tourists and citizens living in French overseas territories. The study analyzed 52 events involving 130 patients, with fish species from the Atlantic, Indian, and Pacific Oceans. Symptoms varied from gastrointestinal to neurological, with exacerbation reported after months in some patients.
CLINICAL TOXICOLOGY
(2021)
Article
Chemistry, Medicinal
Sandra Raposo-Garcia, Alejandro Cao, Celia Costas, M. Carmen Louzao, Natalia Vilarino, Carmen Vale, Luis M. Botana
Summary: The expanding microorganisms producing ciguatoxins have raised significant concerns about ciguatera fish poisoning (CF), necessitating the development of a reliable and rapid ciguatoxin detection method to ensure food safety. This study evaluated various cell lines for CTX detection and revealed the limitations of the N2a cell line due to low availability of sodium channels and significant O/V damage. The HEK293 Nav cell line, expressing the alpha 1.6 subunit of sodium channels, proved to be sensitive to ciguatoxin without sensitization with O/V, providing an alternative for sodium channel-targeting compound detection.
Article
Chemistry, Medicinal
Ophelie Pierre, Maxime Fouchard, Nelig Le Goux, Paul Buscaglia, Raphael Leschiera, Richard J. Lewis, Olivier Mignen, Joachim W. Fluhr, Laurent Misery, Raphaele Le Garrec
Summary: CFP and neurotoxic shellfish poisoning syndromes are induced by seafood contaminated by ciguatoxins and brevetoxins. This study found that P-CTX-2 can sensitize various receptors and channels in sensory neurons, potentially playing a role in the induction or persistence of sensory disturbances in CFP syndrome.
Article
Medicine, General & Internal
Pankaj Agrawal, John Grab
Summary: Ciguatera fish poisoning (CFP) is a non-infectious condition caused by Ciguatoxins, which is known to be the most frequently reported seafood-toxin-related illness in the world. CFP can cause a wide range of symptoms and may last from a few days to a few months. This case report highlights the importance of early recognition and appropriate treatment of CFP.
CUREUS JOURNAL OF MEDICAL SCIENCE
(2022)
Article
Demography
Maelle Calandra, Jean Wencelius, Rakamaly Madi Moussa, Camille Gache, Cecile Berthe, Viliame Waqalevu, Pascal Ung, Franck Lerouvreur, Tamatoa Bambridge, Rene Galzin, Frederic Bertucci, David Lecchini
Summary: This transdisciplinary study focuses on the socio-ecological mechanisms at play in the alteration of Moorea's coastline, highlighting the controversial community-wide economic, social, and ecological impacts of private-based developments and the broader economic and political contexts driving the progressive armoring of the coastline.
POPULATION AND ENVIRONMENT
(2022)
Article
Chemistry, Medicinal
Helene Taiana Darius, Christelle Paillon, Gerard Mou-Tham, Andre Ung, Philippe Cruchet, Taina Revel, Jerome Viallon, Laurent Vigliola, Dominique Ponton, Mireille Chinain
Summary: The size, weight, age, and growth of fish are not reliable determinants of ciguatoxicity. Larger fish pose an increased risk of poisoning, but even small or low-weight fish can still be toxic.
Article
Chemistry, Medicinal
Helene Taiana Darius, Taina Revel, Jerome Viallon, Manoella Sibat, Philippe Cruchet, Sebastien Longo, Donnie Ransom Hardison, William C. Holland, Patricia A. Tester, R. Wayne Litaker, Jennifer R. McCall, Philipp Hess, Mireille Chinain
Summary: This study compared the performance of three methods for quantifying ciguatoxins (CTXs) in Gambierdiscus polynesiensis. The results showed significant correlations between the fluorescent receptor binding assay (fRBA), neuroblastoma cell-based assay (CBA-N2a), and liquid chromatography tandem mass spectrometry (LC-MS/MS). The CBA-N2a was found to be the most sensitive, while all assays exhibited good repeatability. The combined use of fRBA and/or CBA-N2a for screening and LC-MS/MS for confirmation can efficiently evaluate CTX in Gambierdiscus.
Article
Environmental Sciences
Laure Vaitiare Andre, Mireille Chinain, Clemence M. Gatti, Vetea Liao, Simon Van Wynsberge, Pauline Tedesco, Serge Andrefouet
Summary: Oyster farming for black pearl production is a crucial industry in French Polynesia, but has been facing crises recently. An option to revive the industry is to reintroduce oysters in strategic benthic locations, promoting recolonization and spat collection. This approach provides managers with a portfolio of restocking options.
MARINE POLLUTION BULLETIN
(2022)
Article
Green & Sustainable Science & Technology
Laure Vaitiare Andre, Simon Van Wynsberge, Mireille Chinain, Clemence Mahana Iti Gatti, Vetea Liao, Serge Andrefouet
Summary: Exploring diversification options can provide tailor-made plans for local managers to adapt to island development questions, reducing dependence on external factors and increasing population resilience to global changes.
Article
Engineering, Environmental
Jean Wencelius, Matthew Lauer, Tamatoa Bambridge
Summary: This paper presents an ethnographic case study on the design and revision of a marine management scheme in French Polynesia, documenting the interpretations of local stakeholders and the diverse domains they draw from. The findings highlight how the controversies around the marine management scheme go beyond ecological concerns, incorporating politics, identity, cosmology, and livelihoods. The study provides generalizable patterns for understanding local actors' reception and repurposing of natural-resource management policies.
Article
Biochemistry & Molecular Biology
Magnoudewa Priscille Pana, Pierre Ayotte, Elhadji Anassour-Laouan-Sidi, Edouard Suhas, Clemence Mahana Iti Gatti, Michel Lucas
Summary: This study aimed to assess changes in plasma concentrations of branched-chain amino acids (BCAA) and aromatic amino acids (AAA) after intervention-induced modifications in fat mass (FM) and fat-free mass (FFM) among French Polynesian adolescents. The results showed that a decrease in fat mass accompanied by an increase in fat-free mass was associated with a significant decrease in concentrations of obesity and insulin resistance metabolic markers.
Article
Marine & Freshwater Biology
Jacqui Stuart, Kirsty F. Smith, Lesley Rhodes, J. Sam Murray, Jerome Viallon, Kevin Henry, H. Taiana Darius, Shauna A. Murray, Caroline Dornelles De Azevedo, Phoebe Argyle, Mireille Chinain
Summary: This study aims to further characterize G. honu by assessing its distribution, intraspecific genetic variation, toxicity, and toxin production. The results indicate that G. honu is widely distributed in the Pacific region with no significant intraspecific population structure, and the toxicity diversity is not correlated with geographical patterns.
Article
Fisheries
Laure Vaitiare Andre, Simon Van Wynsberge, Mireille Chinain, Serge Andrefouet
Summary: Traditional fishery management schemes have gained recognition worldwide, but the changing environmental and socio-economic contexts require adjustments. This study examines a traditional system on a Polynesian island and suggests a hybrid design combining traditional practices and data-based optimizations.
FISHERIES RESEARCH
(2022)
Article
Environmental Sciences
Frederic Bertucci, William E. Feeney, Zara-Louise Cowan, Camille Gache, Rakamaly Madi Moussa, Cecile Berthe, Lana Minier, Tamatoa Bambridge, David Lecchini
Summary: During the first COVID-19 lockdown in 2020, the decline in coastal activities in French Polynesia led to an increase in fish density around the island of Moorea. Juvenile and adult fish, including harvested species, showed significantly higher densities after the end of the lockdown compared to previous years. The study suggests that short-term reductions in human activity can benefit coastal fish communities and calls for future management policies to minimize human impact on coastline habitats.
REGIONAL ENVIRONMENTAL CHANGE
(2023)
Article
Multidisciplinary Sciences
William E. Feeney, Zara-Louise Cowan, Frederic Bertucci, Rohan M. Brooker, Gilles Siu, Frederique Jossinet, Tamatoa Bambridge, Rene Galzin, David Lecchini
Summary: In 2020, the COVID-19 pandemic resulted in reduced human activities and movement restrictions, leading to improvements in air and water quality and the movement of animal populations. A study conducted in French Polynesia found that the lockdown-induced reduction in recreational activities allowed coral reef fish populations to recolonize inner barrier reef sites.
ROYAL SOCIETY OPEN SCIENCE
(2022)
Article
Social Sciences, Interdisciplinary
Pauline Fabre, Pierre-Yves Le Meur, Alexander Mawyer, Tamatoa Bainbridge
Summary: This article focuses on the re-emergence of rahui, a traditional mode of marine and terrestrial resources management, as a contemporary system for the protection of reef environments in French Polynesia. Rahui reappears in response to environmental changes and combines local, scientific knowledge, and legal frameworks, exemplifying the emergence of hybrid resource governance.
REVUE D ANTHROPOLOGIE DES CONNAISSANCES
(2022)