Article
Environmental Sciences
Diana M. Gomes, Susana Galante-Oliveira, Isabel Benta Oliveira, Italo Braga Castro, Fiamma E. L. Abreu, Gilberto Fillmann, Carlos M. Barroso
Summary: The study found that after the ban on OT-based antifouling systems by the EU, there was a decrease in Nucella lapillus imposex in Aveiro Estuary, but a recent upsurge was observed with some sites showing a slight increase instead of a continuous decline. The percentage of females with imposex varied greatly, but the vas deferens sequence index did not differ significantly across stations.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
K. R. Bandara, S. D. M. Chinthaka, S. G. Yasawardene, Pathmalal M. Manage
Summary: This study found that TBT concentrations varied in coastal water and sediment, with the highest levels found in Colombo port. Additionally, a positive correlation was observed between TBT levels in Perna viridis and body weight. The presence of TBT may lead to reproductive impairment in aquatic animals.
MARINE POLLUTION BULLETIN
(2021)
Article
Multidisciplinary Sciences
Maria Skazina, Nelly Odintsova, Maria Maiorova, Angelina Ivanova, Risto Vainola, Petr Strelkov
Summary: The study identified two lineages of bivalve transmissible neoplasia (BTN), BTN1 and BTN2, in blue mussels Mytilus, with BTN2 being reported for the first time in its original host species M. trossulus in the Sea of Japan. The presence of BTN2 in M. trossulus suggests a common origin of BTN2 diversity in populations of M. trossulus outside the Northeast Pacific, possibly in the Northwest Pacific.
SCIENTIFIC REPORTS
(2021)
Article
Marine & Freshwater Biology
Millena Araujo Franca, Mariana Beatriz Paz Otegui, Gabriela Carvalho Zamprogno, Joao Marcos F. Schuab Menario, Mercia Barcellos da Costa
Summary: This study evaluates tributyltin (TBT) pollution and environmental quality using imposex occurrence in Stramonita brasiliensis in southeast Brazil. The results indicate an improvement in TBT pollution levels over time, but contamination is still present along the coastline of Espirito Santo.
JOURNAL OF SEA RESEARCH
(2021)
Article
Engineering, Marine
Valentina Vladimirovna Slobodskova, Victor Pavlovich Chelomin, Sergey Petrovich Kukla, Andrey Alexandrovich Mazur
Summary: The pollution of coastal water areas by heavy metals is an increasing problem. This study focused on investigating the impact of copper (Cu2+) accumulation and tissue depuration on genome integrity and DNA repair ability in the gill cells of Mytilus trossulus. While the biochemical detoxification system was functional, destructive processes such as the accumulation of lipid peroxidation products (MDA) and DNA damage were observed. However, in the process of depuration from Cu2+, the levels of DNA damage and MDA content were significantly reduced, albeit at a slower rate.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Marine
Victor Pavlovich Chelomin, Andrey Alexandrovich Mazur, Valentina Vladimirovna Slobodskova, Sergey Petrovich Kukla, Nadezda Vladimirovna Dovzhenko
Summary: This study investigated the potential risk of polystyrene microspheres on the genome integrity of filter-feeder mollusk cells, and found that these microspheres caused DNA damage in the cells of the mussel's digestive gland. These findings provide a basis for studying specific biomarkers of microplastic contamination.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Developmental Biology
Maryna P. Lesoway, Jonathan Q. Henry
Summary: Sexual systems display diversity despite the prevalence of sexual reproduction, with sequential hermaphroditism emerging independently multiple times across the animal kingdom. In molluscs, shifts between ancestral separate sexes and hermaphroditism occur at the family level, suggesting recruitment of deeply conserved mechanisms. The role of retinoid signaling in molluscan male development and shifts in timing may have been important for the origins of sequential hermaphroditism within molluscs.
DEVELOPMENTAL BIOLOGY
(2021)
Review
Ecology
Ricardo A. Scrosati
Summary: Predators can influence prey demography not only through consumption but also through triggering behavioral changes in prey. Recent research using intertidal invertebrates as prey and dogwhelks as predators showed that the presence of predators can affect recruitment and reproductive output of prey species by inducing avoidance behavior. This study provides evidence of nonconsumptive effects of predators on prey demography in coastal marine systems.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2021)
Article
Environmental Sciences
Solomia M. Bushell, Bruce A. Wright, Jacqueline Knue, Patrick L. Tomco
Summary: Paralytic shellfish poisoning is a global issue that requires additional screening methods and rapid testing capacities. This study used 1H NMR spectroscopy-based metabolomics to identify biomarkers of Paralytic Shellfish Toxin (PST) exposure in Alaskan mussels. The research found that high levels of PST contamination in mussels led to alterations in energy and amino acid metabolism, as well as disturbances in osmoregulation. This study demonstrates the effectiveness of 1H NMR-based metabolomics in understanding the biological effects of PST on mussel populations and identifying PST contamination in Mytilus trossulus.
MARINE POLLUTION BULLETIN
(2022)
Article
Chemistry, Medicinal
Alina P. P. Filshtein, Irina V. V. Chikalovets, Tatyana O. O. Mizgina, Pavel A. A. Lukyanov, Kuo-Feng Hua, Oleg V. V. Chernikov
Summary: Most proteins can form homooligomeric protein complexes through self-association. Molecular modeling methods are widely used to study biologically active molecules. In this study, computer simulation was used to describe the spatial organization of a lectin from M. trossulus, revealing that its dimerization provides six ligand binding sites that may contribute to its biological properties. The ability of MTL to form dimeric and oligomeric structures was confirmed by dynamic light scattering and SDS-PAGE methods.
Article
Biology
Katie E. Marshall, Kathryn M. Anderson, Norah E. M. Brown, James K. Dytnerski, Kelsey L. Flynn, Joey R. Bernhardt, Cassandra A. Konecny, Helen Gurney-Smith, Christopher D. G. Harley
Summary: This study tested the assumptions that thermal performance can be predicted from constant temperatures in fluctuating temperature conditions using two latitudinally matched populations of Mytilus trossulus. The results showed that performance in fluctuating temperatures could not be accurately predicted from constant temperatures, with important interactions with the population of origin. The findings emphasize the need for caution when using TPCs generated under constant temperature conditions for predicting wild population responses to fluctuating conditions.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Environmental Sciences
Xiao-wen Tang, Rong Yu, Mei-hua Fan, Zhi Yang, Zhi Liao, Zong-xin Yang, Chen-ying Xie, Yu-kun Xuan, Jian-xin Wang, Xiao-lin Zhang, Xiao-jun Yan
Summary: This study investigated the effects of microplastics and Prorocentrum lima exposure on the digestive gland of Mytilus coruscus. The results showed physiological and molecular changes, and a synergistic toxic effect between the two pollutants.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Evolutionary Biology
Kati Michalek, David L. J. Vendrami, Michael Bekaert, David H. Green, Kim S. Last, Luca Telesca, Thomas A. Wilding, Joseph Hoffman
Summary: The study reveals that the dominant genotype across different depths at a mussel farm on the West coast of Scotland is ME, and introgression of MT leads to unfavorable traits such as weaker and more elongate shells.
EVOLUTIONARY APPLICATIONS
(2021)
Article
Chemistry, Organic
Hiroyoshi Takamura, Yuya Kinoshita, Takefumi Yorisue, Isao Kadota
Summary: In this study, hybrid molecules combining the structural motifs of geraniol and furan were synthesized, demonstrating enhanced antifouling activity against barnacle cypris larvae. The EC50 values of the nine synthetic hybrids ranged from 1.65 to 4.70 μg mL(-1), outperforming both geraniol and the reference furan compound. This approach of hybridization holds promise for increasing antifouling activity and can be applied to other active structural units as well.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Ecology
Alexa Mutti, Iris Kubler-Dudgeon, Steve Dudgeon
Summary: The study found that predation can reduce spatial variability in community structure, and as environmental changes accelerate, the variability effects of ecological processes and responses are likely to become increasingly important determinants of community dynamics.
