Article
Engineering, Marine
Laura Steeves, Antonio Aguera, Ramon Filgueira, Oivind Strand, Tore Strohmeier
Summary: The purpose of this study was to determine if the blue mussel Mytilus edulis can maintain constant ingestion rates by changing feeding rates in response to fluctuations in natural diets. The results showed significant individual variability in pumping rates and no correlation between pumping rate and food availability. However, population-level ingestion rates increased with increasing food availability.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Medicinal
Nawzet Bouriga, Sami Mili, Wafa Rjiba Bahri, Bayrem Jammeli, Mossadok Ben-Attia, Jean-Pierre Quignard, Monia Trabelsi
Summary: This research focused on studying the effectiveness of hyaluronic acid (HA) in treating skin wounds in rats. Extracts containing HA were obtained from two species of molluscs, Mytilus galloprovincialis and Crassostrea gigas, and then tested on Wistar rats with back skin lesions. The results showed that HA significantly accelerated wound repair through reepithelization, with the HA from Crassostrea gigas completely healing the wounds after 15 days of treatment. This suggests that mollusc HA has clear healing properties, supporting its recognized effectiveness in dermo-cosmetology.
PHARMACEUTICAL CHEMISTRY JOURNAL
(2022)
Article
Environmental Sciences
J. M. Goncalves, M. Benedetti, G. d'Errico, F. Regoli, M. J. Bebianno
Summary: Concerns about plastic pollution and toxicity towards animals and people are increasing. Polystyrene (PS), a commonly used plastic polymer, ends up in the marine environment through illegal dumping, improper waste management, and lack of treatment. Nanoplastics (<1000 nm) have gained interest due to their small size that allows them to cross cellular boundaries and cause toxic effects. This study examined the cellular viability and acute toxicity of PS nano-plastics (PS-NPs) on Mytilus galloprovincialis haemocytes and Aliivibrio fischeri bacteria, as well as the neurotoxic effects and uptake of PS-NPs in mussel tissues. The results showed decreased cellular viability and significant neurotoxic effects, with PS-NPs being ingested primarily through the gills and then translocated throughout the mussel's body. The ingestion of PS-NPs compromised digestive gland function and reproductive success. The study provides a synthetic assessment of cellular hazard from PS-NPs based on weighted criteria and previous data on cellular biomarkers.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Tao Jiang, Huizhu Pan, Laura Steeves, Zengjie Jiang, Ramon Filgueira, Oivind Strand, Tore Strohmeier, Peter J. Cranford, Zhengguo Cui
Summary: The feeding selectivity of bivalves plays a crucial role in shaping the structure of phytoplankton communities in natural waters. This study investigated the feeding selectivity of blue mussels on natural phytoplankton assemblages using optical microscopy and HPLC-pigment analysis. The results revealed the preference of blue mussels for certain phytoplankton species, highlighting the importance of HPLC-pigment analysis in obtaining a comprehensive understanding of bivalve feeding selectivity.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Fisheries
Alfredo Loor, Peter Bossier, Nancy Nevejan
Summary: The study found that Delta mnn9 cells can be efficiently ingested and digested by Pacific oyster spat, serving as a suitable alternative to microalgal diets and potentially improving the growth performance of Pacific oysters.
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
Fisheries
Yong Chi, Gaowei Jiang, Yuanxin Liang, Chengxun Xu, Qi Li
Summary: Selective breeding has shown promising results in improving summer survival in Pacific oysters. The study found that summer survival has a moderate heritability and a positive correlation with growth traits. The realized genetic gain of summer survival increased over generations, indicating the effectiveness of the breeding program.
Article
Environmental Sciences
Xuekai Zhang, Chao Fan, Jinlong Li, Xingzhi Zhang, Qiongzhen Li, Zhaoping Wang
Summary: This study analyzed the molecular processes in hybrids of Pacific oyster under hypoxia stress and identified significant differentially expressed genes related to cell survival and immune response.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Arno Bringer, Jerome Cachot, Emmanuel Dubillot, Gregoire Prunier, Valerie Huet, Christelle Clerandeau, Louise Evin, Helene Thomas
Summary: This study focused on the impacts of aged aquaculture microplastics (MPs) on Pacific oysters. The results showed that MPs had no significant effect on the growth of adult oysters, but significantly increased the mortality rate of bivalves exposed to MPs. In addition, ingestion of MPs in oyster tissues and the presence in biodeposits were observed. Furthermore, the study found that MPs had effects on the swimming behavior, development, and growth of the offspring of exposed oysters.
ENVIRONMENTAL POLLUTION
(2022)
Article
Chemistry, Applied
Han Li, Xiaoyu Xia, Zhenyu Wang, Jiachen Zang, Ming Du
Summary: The study investigated the structure and stability characteristics of oyster ferritin by adding Fe2+ to it. The results showed that the protein structure of ferritin remained largely unchanged after adding Fe2+ and the sample with 1000 Fe2+ exhibited good stability under storage and high temperature conditions.
Article
Environmental Sciences
Rodrigo Alvarez-Ruiz, Yolanda Pico, Julian Campo
Summary: This study assessed the bioaccumulation of 20 chemical substances catalogued as ECs in Mytilus galloprovincialis, showing the accumulation of certain substances in the visceral mass and haemolymph of mussels, with MPs acting as a vector for the accumulation of PFASs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Deliang Yu, Zheng Peng, Huifeng Wu, Xiaoying Zhang, Chenglong Ji, Xiao Peng
Summary: In this study, differentially expressed miRNAs in blue mussels exposed to cadmium were identified through small RNA sequencing. The research revealed significant changes in the expression of known and novel miRNAs, as well as target genes related to immune defense, apoptosis, lipid and xenobiotic metabolism under Cd stress. This study provides insights into the role of miRNAs in mollusk species under environmental stress, particularly in response to heavy metal exposure.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Environmental Sciences
Joanna M. Goncalves, Vania Serrao Sousa, Margarida Ribau Teixeira, Maria Joao Bebianno
Summary: This study examined the effects of polystyrene nanoplastics on marine mussels and found that nanoplastics induce genotoxicity and oxidative damage in these organisms, overwhelming antioxidant enzymes and causing tissue-dependent toxicity over time. The results suggest that mussel tissues are incapable of coping with the adverse effects of nanoplastics.
Article
Environmental Sciences
Joanna Giannessi, Lucia De Marchi, Valentina Meucci, Luigi Intorre, Gianfranca Monni, Mariella Baratti, Carlo Pretti
Summary: This study investigated the effects of fluoroquinolone antibiotics on Mytilus galloprovincialis. In vitro exposure to environmentally relevant concentrations of Ciprofloxacin, Enrofloxacin, and Danofloxacin resulted in cellular damage, decreased antioxidant enzyme activity, neurotoxicity, and DNA single-strand breaks in the mussel's digestive gland and gills.
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
(2023)
Article
Fisheries
Joseph P. Dietrich, Mary Beth Rew Hicks, Jeffrey J. Hard, Krista M. Nichols, Christopher J. Langdon, Konstantin Divilov, Blaine Schoolfield, Mary R. Arkoosh
Summary: Marine bivalves account for 14% of global aquaculture production, with oysters representing about 33% of this production. Disease outbreaks caused by Vibrio coralliiyticus pose a major problem in oyster hatchery production. This study demonstrates that selective breeding can enhance the resistance of oyster larvae to Vibrio coralliiyticus, but multiple generations of breeding are expected for significant improvement.
Article
Fisheries
Qiuran Yu, Fenglu Han, Maoxian Huang, Xiaodan Wang, Jian G. Qin, Liqiao Chen, Erchao Li
Summary: This study found that different doses of myo-inositol can significantly affect the growth performance, body composition, serum metabolite composition, hepatopancreatic metabolite content, and digestive enzyme activity in juvenile Pacific white shrimp. It suggests that myo-inositol can promote shrimp growth by improving lipid utilization.
Article
Environmental Sciences
Yiwen Yang, Qiuran Yu, Cong Zhang, Xiaodan Wang, Long He, Yuxing Huang, Erchao Li, Jianguang Qin, Liqiao Chen
Summary: The study found that thiamethoxam, a neonicotinoid insecticide, can be toxic to crustaceans, leading to hepatotoxicity and neurotoxic effects. The toxicity is related to the activation of antioxidant and detoxification systems, regulation of immune-related gene expression, and potential inflammatory response. High concentrations of thiamethoxam also cause decreased acetylcholinesterase activity and downregulation of synaptic transmission-related genes, affecting neurotoxicity in crustaceans.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Biochemistry & Molecular Biology
Jiadai Liu, Cong Zhang, Xiaodan Wang, Xinyu Li, Qincheng Huang, Han Wang, Yixin Miao, Erchao Li, Jianguang Qin, Liqiao Chen
Summary: This study investigated the potential of high dietary methionine levels in alleviating chronic heat stress in Chinese mitten crab Eriocheir sinensis. The results showed that under high water temperatures, the crabs exhibited decreased feed conversion ratio and increased weight gain, specific growth rate, molting frequency, and protein efficiency ratio. However, survival rate decreased. The high-methionine diet was found to reduce lipid accumulation and increase protein content, while also mitigating oxidative stress and activating immune function.
Article
Fisheries
Jingyu Pan, Liqiao Chen, Yuzhou Ji, Yuxing Huang, Xianyong Bu, Jiahua Zhu, Erchao Li, Jianguang Qin, Xiaodan Wang
Summary: This study aimed to investigate the relationship between inositol metabolism and carbohydrate metabolism in Nile tilapia under acute hyperosmotic stress. Glucose solution and PBS were injected into the experimental and control group fish, respectively, followed by exposing them to brackish water for different time points. The hyperosmotic stress increased osmotic pressure, glucose content, and metabolic processes in the liver of fish. Genes related to inositol synthesis and transport were induced by hypertonicity in gill, kidney, and liver tissues. Glucose injection decreased inositol synthesis and apoptosis in the liver, but increased Na+K+-ATPase activity and osmoregulation ability in the gill.
AQUACULTURE REPORTS
(2023)
Article
Fisheries
Qincheng Huang, Xiaodan Wang, Zhideng Lin, Jiadai Liu, Han Wang, Cong Zhang, Zhenyu Du, Jianguang Qin, Liqiao Chen
Summary: The present study investigated the effect of vitamin A on growth performance, lipid metabolism, fatty acid composition, antioxidant ability and inflammatory response of crabs fed different vegetable oils. The interaction between vitamin A and lipid source did not influence the survival rate, final body weight, weight gain and specific growth rate of crabs. Crabs fed perilla oil showed optimal growth performance with the lowest body lipid content and hemolymph triglyceride, while crabs fed coconut oil showed the worst growth performance and aggravating inflammation. Dietary vitamin A improved growth performance and relieved inflammation of crabs fed different lipid sources, enhancing antioxidant activity and mitigating lipid peroxidation.
Article
Fisheries
Xianyong Bu, Qincheng Huang, Ying Song, Changle Qi, Zhideng Lin, Xiaodan Wang, Meiling Zhang, Chuanjie Qin, Jian G. Qin, Liqiao Chen
Summary: This study evaluates the effects of dietary myo-inositol (MI) on the ovarian development of female Chinese mitten crab (Eriocheir sinensis). The results showed that feeding crabs diets supplemented with 1600 and 3200 mg/kg MI significantly promoted ovarian development, increased gonadosomatic index and yolk granule deposition. MI supplementation also enhanced vitellogenin synthesis, lipid metabolism, and transport-related gene expression in the hepatopancreas and ovary. Thus, feeding a diet with 1600mg/kg MI can effectively promote ovarian development in Chinese mitten crabs.
Article
Fisheries
Ying Song, Xinyu Cai, Xianyong Bu, Shubin Liu, Mingqi Song, Yiwen Yang, Xiaodan Wang, Qingchao Shi, Jianguang Qin, Liqiao Chen
Summary: This study evaluates the effects of dietary iron and vitamin C on the growth performance, iron utilization, antioxidant capacity, and nonspecific immunity of the Chinese mitten crab. The results show that dietary supplementation of 700.90 mg/kg of vitamin C can improve iron absorption and utilization, thereby increasing the growth, immunity, and disease resistance of the crab.
AQUACULTURE NUTRITION
(2023)
Article
Fisheries
Cong Zhang, Jiadai Liu, Xiaodan Wang, Erchao Li, Mingqi Song, Yiwen Yang, Chuanjie Qin, Jianguang Qin, Liqiao Chen
Summary: Previous research has shown that hypoxia can be harmful to the neural system of Chinese mitten crabs, but this study found that GABA can provide neuroprotection against hypoxia-induced damage. Through feeding and hypoxia challenge experiments, it was discovered that GABA can protect the neural system of Chinese mitten crabs and regulate their metabolism.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Chemistry, Medicinal
Trung T. T. Nguyen, Thanh Hoang, Tuyet Pham, Vi Khanh Truong, Xuan Luo, Jian Qin, Wei Zhang
Summary: Shell wastes impose burdens on the shellfish industry, but they can be used for commercial chitin production to minimize negative impacts and maximize economic value.
Article
Ecology
Shirin Akter, Melissa L. Wos-Oxley, Sarah R. Catalano, Md Mahbubul Hassan, Xiaoxu Li, Jian G. Qin, Andrew P. A. Oxley
Summary: Pacific oysters and Mediterranean mussels have gut microbiota that plays an important role in their health and nutrition. The composition of their gut microbiota is influenced by both the host and the environment, as revealed by studying their bacterial assemblages in seawater and gut samples.
Article
Agriculture, Dairy & Animal Science
Jiahua Zhu, Fan Zhang, Yuxing Huang, Jingyu Pan, Erchao Li, Jian G. Qin, Liqiao Chen, Xiaodan Wang
Summary: This research explores the influence of myo-inositol on the hypertonic stress adaptation of Nile tilapia by increasing lipid utilization and improving osmotic regulation ability. It was found that myo-inositol supplementation improved growth performance, promoted protein deposition, reduced fat accumulation, and alleviated liver lipid accumulation. Additionally, it reduced serum lipids and upregulated the expression of ion transporter-related genes. The findings suggest that dietary supplementation with myo-inositol can regulate lipid metabolism and improve the physiological response of Nile tilapia to hypertonic stress.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2023)
Article
Fisheries
Xiaochen Zhu, Penny Miller-Ezzy, Mark Gluis, Yingying Zhao, Jianguang Qin, Youhong Tang, Yibing Liu, Xiaoxu Li
Summary: Pacific oysters are important in aquaculture, and this study investigated how to improve larval cryopreservation techniques. The results showed that adding the lipid POPC to the base CPA significantly increased larval development after thawing. Adding tocopherol alone had no significant effect. However, combining POPC and tocopherol improved survival rates and doubled the spat production compared to the base CPA.
Article
Fisheries
Yang Zhou, Li Xu, Zhongtang He, Weijie Cui, Qun Lu, Jianguang Qin, Shengqi Su, Tao He
Summary: This study successfully differentiated different stocks of Schizothorax grahami in the Chishui River by analyzing otolith morphology, providing important evidence for the scientific management of these fish resources.
Article
Fisheries
Xiaochen Zhu, Penny Miller-Ezzy, Mark Gluis, Jianguang Qin, Youhong Tang, Yibing Liu, Yingying Zhao, Xiaoxu Li
Summary: This study investigated the effect of adding lipids and antioxidants on the survival rate of frozen mussel oocytes. The results showed that supplementing phospholipids or antioxidants in the base cryoprotectant agent significantly increased the survival rate of mussel larvae. Additionally, adding salmon lipid extract resulted in the highest survival rate and increased the number of mussel spat.
Article
Ecology
Katja J. Geiger, Julio Arrontes, Antonella Rivera, Consolacion Fernandez, Jorge Alvarez, Jose Luis Acuna
Summary: A two-year experiment was conducted to investigate the impact of Pollicipes pollicipes harvest on intertidal community structure and ecological diversity. The study found that intensive exploitation resulted in a decrease in P. pollicipes and Mytilus spp. coverage, while Chthamalus spp. and Corallina spp. increased. The recovery of P. pollicipes aggregations was slow and variable, but their coverage increased under non-extracted conditions.
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
(2024)
Article
Ecology
Daniel Castro Martignago, Leandro Godoy, Amanda Pereira Amaral, Guendalina Turcato Oliveira
Summary: This study evaluates the effects of bleaching on the oocytes of the Mussismilia harttii coral and investigates the strategies employed by these cells to maintain antioxidant balance and cellular homeostasis. The research finds that bleached coral oocytes experience lipid damage, but are still able to maintain their quality and potentially elongate their lifespan and fertilization capability. This response may be linked to an intensification of heterotrophy in bleached corals.
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
(2024)