Article
Chemistry, Medicinal
Monika Dhanji-Rapkova, Andrew D. Turner, Craig Baker-Austin, Jim F. Huggett, Jennifer M. Ritchie
Summary: A potent and heat-stable toxin, TTX, accumulates in various marine bivalve species, including Pacific oysters, with the highest concentrations found in the digestive gland. TTX levels vary significantly between different geographical locations and within populations of oysters, suggesting high variability in toxin distribution.
Article
Environmental Sciences
Abby R. Gilson, Neil E. Coughlan, Jaimie T. A. Dick, Louise Kregting
Summary: The study found that the thermal responses of native oysters and invasive oysters to marine heat waves were context dependent, with native oysters showing changes in size and biomass while invasive oysters remained unaffected. The ability of native oysters to maintain their presence in the intertidal under sufficient food supply was highlighted, while the resilience of invasive oyster populations to climatic extremes may lead to competitive exclusion and further decline in native oyster populations. These findings are crucial for developing effective management plans to ensure the sustainability of natural oyster populations and maintaining key ecosystem functioning.
MARINE ENVIRONMENTAL RESEARCH
(2021)
Article
Microbiology
Marion Soree, Francois Delavat, Christophe Lambert, Solen Lozach, Mathias Papin, Bruno Petton, Delphine Passerini, Lionel Degremont, Dominique Hervio Heath
Summary: The study revealed that oysters grown in controlled environments accumulated more Vibrio parahaemolyticus than those grown in intertidal environments, possibly due to immune priming in the latter. However, both types of oysters showed similar depuration rates for V. parahaemolyticus.
ENVIRONMENTAL MICROBIOLOGY
(2022)
Article
Chemistry, Medicinal
Audrey Auger, Shin-Yi Yu, Shih-Yun Guu, Agnes Quemener, Gabriel Euller-Nicolas, Hiromune Ando, Marion Desdouits, Francoise S. Le Guyader, Kay-Hooi Khoo, Jacques Le Pendu, Frederic Chirat, Yann Guerardel
Summary: Noroviruses bind to HBGAs on host tissues and oysters can act as vectors for viral infection due to their synthesis of similar glycan epitopes. The methylation patterns of N-glycans in oysters, particularly in N-acetylgalactosamine and fucose residues, can influence the recognition events between oysters and norovirus capsid proteins.
Article
Multidisciplinary Sciences
Aaron Kornbluth, Bryce D. Perog, Samantha Crippen, Danielle Zacherl, Brandon Quintana, Edwin D. Grosholz, Kerstin Wasson
Summary: In order to conserve coastal foundation species, the distribution and abundance patterns of native Olympia oysters and non-native Pacific oysters along the west coast of North America were studied. An interactive web-based map was created to visualize the spatial and temporal patterns of the oysters. The study found a significant decrease in abundance and distribution of native Olympia oysters, while the non-native Pacific oysters significantly increased. Restoration of habitat and increase in abundance of native oysters were recommended, as well as restoration of natural biogenic beds on mudflats and sandflats, particularly in the southern range.
Article
Environmental Sciences
Xiaojie Sun, Lihong Xing, Jun Xing, Xuying Zheng, Jiamin Liu, Jixing Peng, Zhaoxin Li, Zhijun Tan, Lianzhu Wang
Summary: This study presented the tissue-specific accumulation, biotransformation, and potential metabolic pathway of prometryn in oyster species Crassostrea gigas for the first time. The digestive gland and gonad were found to be the main target organs during uptake, and hydroxylation was the major metabolic process of prometryn in oyster. The high percentage of hydroxylated metabolites in oyster samples indicates that prometryn poses a larger threat to aquatic organisms than rats.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Garth A. Covernton, Maggie Dietterle, Christopher M. Pearce, Helen J. Gurney-Smith, John F. Dower, Sarah E. Dudas
Summary: In this study, depuration of cultured adult Pacific oysters was conducted for 10 days in a facility with limited airflow and filtered seawater. The results showed a 73% reduction in oyster AP concentration after 5 days, with no further reduction at 10 days. The long-term feasibility for the industry will depend on future guidelines for safe AP consumption levels and the practicality and financial feasibility of clean facility creation and operation.
MARINE POLLUTION BULLETIN
(2022)
Article
Fisheries
Qiong Yang, Hong Yu, Qi Li
Summary: This study analyzed the expression of cell cycle regulatory proteins during gametogenesis in triploid Pacific oysters and found that differences in gene expression could explain the sterility of triploid females and the disrupted spermatogenesis in triploid males. These findings provide insights into the mechanisms underlying the sterility of triploid oysters.
Article
Environmental Sciences
Hyeryeong Jeong, Kongtae Ra, Jong-Ho Won
Summary: The study found that copper, zinc, and cadmium concentrations were higher in oysters than in mussels, and most metals had no correlation with total sediment concentrations. In oysters, iron, vanadium, copper, zinc, tin, and lead concentrations were significantly correlated with sediments. In terms of zinc isotopes, tissues with high zinc concentrations tended to contain lighter isotopes.
MARINE POLLUTION BULLETIN
(2021)
Article
Multidisciplinary Sciences
Grace Crandall, Rhonda Elliott Thompson, Benoit Eudeline, Brent Vadopalas, Emma Timmins-Schiffman, Steven Roberts
Summary: Elevated temperature has significant impacts on Pacific oysters, affecting their metabolism, growth, and immune response. Oysters kept at higher temperatures showed faster growth, higher settlement rate, and increased survival with proteins related to metabolism; while those kept at lower temperatures exhibited smaller size, lower settlement rate, and higher abundance of proteins related to immune response. This study highlights the importance of proteomics in understanding the phenotypic response of oysters to temperature changes.
Article
Environmental Sciences
Yonghua Liu, Jiayu Xu, Yong Wang, Song Yang
Summary: The study found that metal concentrations in oysters and seawater were highest in summer and lowest in autumn. Different sizes of oysters accumulated metals differently, with varying levels of different metals in oysters of different sizes. There were significant differences in trace metal concentrations among the three sample types in all sampling sites.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Microbiology
Mingjia Yu, Xiaobo Wang, Aixian Yan
Summary: The study reveals a high level of microbial diversity in retail oysters from Guangdong region, including pathogenic bacteria. The abundance of bacteria in oysters poses significant health risks for consumers.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Environmental Sciences
Van Manh Do, Thi Thom Dang, Xuan Thanh Thao Le, Duy Thanh Nguyen, Thi Vi Phung, Dinh Ngo Vu, Hung Viet Pham
Summary: This study examined the quantity, shape, size, and polymer types of microplastics in Pacific oysters cultured in Danang Bay, Vietnam. The findings provide reliable evidence for further studies on the potential health risks associated with microplastics.
MARINE POLLUTION BULLETIN
(2022)
Article
Chemistry, Applied
Qi Wang, Cheng Sun, Lipin Chen, Haohao Shi, Changhu Xue, Zhaojie Li
Summary: This study investigated the effects of different microalgae diets on the flavor characteristics of oysters. The results showed that feeding oysters with Chlorella vulgaris and Pavlova viridis significantly increased their umami concentration values compared to the control group. Gas chromatography-ion mobility spectrometry analysis also supported these differences.
Article
Agriculture, Multidisciplinary
Xiaohan Cong, Qi Wang, Cheng Sun, Fanqianhui Yu, Lipin Chen, Zhongkai Sun, Haohao Shi, Changhu Xue, Zhaojie Li
Summary: By simulating the industrial depuration process, it was found that 20 degrees Celsius is the optimal temperature for UV sterilization depuration of Pacific oysters, resulting in better edible quality.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2022)