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The chronic toxicity of molybdate to marine organisms. I. Generating reliable effects data.

A scientific research program was initiated by the International Molybdenum Association (IMOA) which addressed identified gaps in the enviro … nodon variegatus), echinoderms (Dendraster exentricus, Strongylocentrotus purpuratus) and molluscs (Mytilus edulis, Crassostrea gigas). Available NOEC/EC(10) levels ranged between 4.4 mg Mo/L (blue mussel M. edulis) and 1174 mg Mo/L (oyster C. gigas). Using all available reliable marine chronic effects data that are currently available, a HC(5,50%) (media …

Biogeography of ocean acidification: Differential field performance of transplanted mussels to upwelling-driven variation in carbonate chemistry.

Ocean acidification (OA) represents a serious challenge to marine ecosystems. Laboratory studies addressing OA indicate broadly negative eff … ty on seasonal growth, condition and shell thickness of the ecologically dominant intertidal mussel Mytilus californianus. In 2011 and 2012, ecological performance of adult mussels from local and commonly sourced populations was measured at 8 rocky intertidal sites between central Oregon and southern California. Sites coincided with a large-scale network …

Investigations from Northern Greece on mussels cultivated in areas proximal to wastewaters discharges, as a potential source for human infection with Giardia and Cryptosporidium.

Marine bivalves are usually cultivated in shallow, estuarine waters where there is a high concentration of nutrients. Many micro-pollutants, including the protozoan parasites Giardia duodenalis and Cryptosporidium spp., which also occur in such environments, may be concentrated in shellfish tissues during their feeding process. Shellfish can thus be considered as vehicles for foodborne infections, as they are usually consumed lightly cooked or raw. Therefore, the main objective of this study was to investigate the presence of both parasites in Mediterranean mussels, Mytilus galloprovincialis t…

THE PHYSIOLOGICAL BASIS OF NATURAL SELECTION AT THE LAP LOCUS.

An extensive research program was undertaken to evaluate the contribution of genetic variation at the Lap locus to variation in physiological traits under natural conditions. Rates of carbon and nitrogen metabolism were monitored in a population of the mussel Mytilus edulis near the center of the Lap allele frequency cline on the north shore of Long Island. The goal of this research was to establish whether the previously described genotype-dependent differences in physiological phenotype are meaningful in ecologically relevant circumstances. It was predicted from laboratory studies that, in n…

First application of a droplet digital PCR to detect Toxoplasma gondii in mussels.

Toxoplasmosis, caused by the protozoan Toxoplasma gondii, is one of the main food-, water- and soil-borne zoonotic disease worldwide. Over t … c/μL, 8 gc/μL of a T. gondii reference DNA were tested. DNA was extracted from 80 pools of mussels (Mytilus galloprovincialis). Forty pools were contaminated with T. gondii reference DNA and used as positive controls, while 40 pools were used as negative controls. DdPCR reaction was prepared using a protocol, previously developed by the authors, for detec …

Occurrence of Human Enteric Viruses in Retail Mussels Marketed in Burgos, Spain.

Bivalve mollusks are recognized as bioaccumulators of enteric viruses and, therefore, represent important environmental sentinels for microb … d to investigate the occurrence of HAV, HEV, NoV GI, and NoV GII in commercially available mussels (Mytilus galloprovincialis). A total of 78 pooled samples, each comprising digestive tissues from four to five mussels, were collected from retail markets between February and December 2025 and during January and February 2026 and were analyzed by reverse tr …

Antiviral Activity of Myticin C Peptide from Mussel: an Ancient Defense against Herpesviruses.

UNLABELLED: Little is known about the antiviral response in mollusks. As in other invertebrates, the interferon signaling pathways have not … lated from marine invertebrates. Myticin C, an antimicrobial peptide from the Mediterranean mussel (Mytilus galloprovincialis) that was identified by proteomic techniques in both mussel hemolymph and hemocytes, showed potential as an antiviral agent against ostreid herpesvirus 1 (OsHV-1), which represents a major threat to the oyster-farming sector. Both …

Matrix solid-phase dispersion combined with gas chromatography-mass spectrometry for the determination of fifteen halogenated flame retardants in mollusks.

This study presents the development and validation of a new analytical method for the simultaneous determination of fifteen analytes classif … method was applied to the determination of HFRs in different kind of freeze-dried mollusks: mussel (Mytilus galloprovincialis), cockle (Cerastoderma edule) and clam (R. philippinarum). Raft cultured mussels showed the highest concentrations of HFRs (up to 0.8ngg(-1) wet weight of BDE-209).

Untargeted Metabolomics Approach for the Discovery of Environment-Related Pyran-2-ones Chemodiversity in a Marine-Sourced Penicillium restrictum.

Very little is known about chemical interactions between fungi and their mollusc host within marine environments. Here, we investigated the metabolome of a Penicillium restrictum MMS417 strain isolated from the blue mussel Mytilus edulis collected on the Loire estuary, France. Following the OSMAC approach with the use of 14 culture media, the effect of salinity and of a mussel-derived medium on the metabolic expression were analysed using HPLC-UV/DAD-HRMS/MS. An untargeted metabolomics study was performed using principal component analysis (PCA), orthogonal projection to latent structure discr…

Studies on a widely-recognized snail model species (Lymnaea stagnalis) provide further evidence that vertebrate steroids do not have a hormonal role in the reproduction of mollusks.

Experiments were carried out to determine whether, as with other mollusks that have been studied, the snail, Lymnaea stagnalis, can absorb, … radiol (albeit with an absorption rate about four times slower, on a weight basis, than the mussel, Mytilus edulis). We also found that not only anti-human aromatase, but also anti-human nuclear progesterone receptor (nPR) and anti-human gonadotropin-releasing hormone antibodies immunohistochemically stained snail neural cells. However, further experiment …

Toxic elements and speciation in seafood samples from different contaminated sites in Europe.

The presence of cadmium (Cd), lead (Pb), mercury (THg), methylmercury (MeHg), arsenic (TAs), inorganic arsenic (iAs), cobalt (Co), copper (Cu), zinc (Zn), nickel (Ni), chromium (Cr) and iron (Fe) was investigated in seafood collected from European marine ecosystems subjected to strong anthropogenic pressure, i.e. hotspot areas. Different species (Mytilus galloprovincialis, n=50; Chamelea gallina, n=50; Liza aurata, n=25; Platichthys flesus, n=25; Laminaria digitata, n=15; and Saccharina latissima, n=15) sampled in Tagus estuary, Po delta, Ebro delta, western Scheldt, and in the vicinities of a…

Expression regulation of Fad and Mboat gene families to cold stress in the noble scallop Chlamys nobilis: A comparative analysis across bivalves.

Cold waves exacerbated by global warming and the resultant sharp drops in coastal water temperature pose serious threats to the sustainabili … lies, respectively. Phylogenetic analysis revealed a significant expansion of the Fads subfamily in Mytilus and Venerida, lineage-specific expansion of Scd in Ostreida, and expansion of the Lpcat subfamily in Pectinida, Adapedonta, and Cardiida, suggesting adaptive evolution of lipid metabolic pathways in bivalves. Focusing on the noble scallop Chlamys no …

Residue profiles of brodifacoum in coastal marine species following an island rodent eradication.

The second-generation anticoagulant rodenticide brodifacoum is an effective tool for the eradication of invasive rodents from islands and fe … ncentrations were also found in whole-body samples of 4 of 24 mussels (range=0.001-0.022 µg/g, n=4; Mytilus edulis) and 4 of 24 limpets (range=0.001-0.016 µg/g, n=4; Cellana ornata). Measured residue concentrations in all three species were assessed as unlikely to have eventually caused mortality of the sampled individuals. We also conducted a literature …

Emerging regulatory roles of opioid peptides, endogenous morphine, and opioid receptor subtypes in immunomodulatory processes: Metabolic, behavioral, and evolutionary perspectives.

Integrated behavioral paradigms such as nociceptive processing coupled to anti-nociceptive responsiveness include systemically-mediated stat … y linkage to similar physiological events in prokaryotic cells. A subpopulation of immunocytes from Mytilus edulis and Leucophaea maderae and human granulocytes respond to low opioid concentrations, mediated by the adherence-promoting role of (D-Ala2-D-Met5)-enkephalinamide (DAMA), which is blocked by naloxone in a dose-dependent manner. Neutral endopepti …

Izmit Bay (Turkey) ecosystem after Marmara earthquake and subsequent refinery fire: the long-term data.

As a part of Marmara Sea, Izmit Bay (Turkey) has been one of the most polluted sites in the region for the last 25 years. On 17 August 1999, … , ortho-phosphate and silicate), dissolved oxygen and chlorophyll a. Surface sediments and mussels, Mytilus galloprovincialis, have been analysed for total PAH (T-PAH) contents in April and September 1999 (before and after the Marmara Earthquake) for the samples collected from eight coastal stations of the Bay. Biomarker (Lysosomal stability and feeding r …

An obesogenic diet enriched with blue mussels protects against weight gain and lowers cholesterol levels in C57BL/6 mice.

Obesity is linked to several health complications, such as cardiovascular disease, insulin resistance, and hypertension. Dyslipidemia in obesity is one of the prime causes for health complications. We have previously shown that blue mussels (BM) are a rich source of omega (n)-3 polyunsaturated fatty acids (PUFA) and increase the mRNA expression of peroxisome-proliferator activated receptor and adiponectin, thereby inducing anti-obesity and insulin sensitizing effects in vitro. However, the in vivo effects of BM on obesity and metabolic regulation are not known. We hypothesized that dietary int

A high fat-high sucrose diet enriched in blue mussels protects against systemic inflammation, metabolic dysregulation and weight gain in C57BL/6 mice.

High fat-high sucrose (HF-HS) diet, known as the western diet, has been shown to induce the onset of obesity via increasing metabolic inflammation, insulin resistance and adipose tissue dysfunction. Hyperleptinemia, hyperglycemia and dyslipidemia are also the primary observations of obesogenic diet induced obesity. We have previously reported anti-adipogenic and insulin sensitizing effects of blue mussels (BM) using 3T3-L1 cells. BM is a rich source of omega-3 polyunsaturated fatty acids, phytosterols and other micronutrients that has been shown to elicit benefits under obese conditions using

Harmful algal blooms and their effects in coastal seas of Northern Europe.

Harmful algal blooms (HAB) are recurrent phenomena in northern Europe along the coasts of the Baltic Sea, Kattegat-Skagerrak, eastern North … sis spp., intermittently yield concentrations of Diarrhetic Shellfish Toxins (DST) in blue mussels, Mytilus edulis, above regulatory limits along the coasts of Norway, Denmark and the Swedish west coast. On average, DST levels in shellfish have decreased along the Swedish and Norwegian Skagerrak coasts since approximately 2006, coinciding with a decrease …

CRISTISPIRA IN NORTH AMERICAN SHELLFISH. A NOTE ON A SPIRILLUM FOUND IN OYSTERS.

Ten varieties of North American shellfish were examined for the occurrence of Cristispira in their styles. A cristispira was found in various numbers in Ostrea virginiana, Venus mercenaria, and Modiola modiolus, but none in Ensis americana, Mya arenaria, Mactra solidissima, Pecten irradians, Mytilus edulis, Fulgur canaliculatus, or Nassa obsoleta. Of 298 oysters, only 128 showed the crystalline styles, in which cristispiras were present in 99. Active cristispiras were found in 59 styles only and degenerated forms in the remaining 40. In 110 clams (Venus mercenaria) 70 styles were found, and on…

Chondroprotection and Molecular Mechanism of Action of Phytonutraceuticals on Osteoarthritis.

Osteoarthritis (OA) is a degenerative joint disease and an important cause of incapacitation. There is a lack of drugs and effective treatments that stop or slow the OA progression. Modern pharmacological treatments, such as analgesics, have analgesic effects but do not affect the course of OA. Long-term use of these drugs can lead to serious side effects. Given the OA nature, it is likely that lifelong treatment will be required to stop or slow its progression. Therefore, there is an urgent need for disease-modifying OA treatments that are also safe for clinical use over long periods. Phytonu

Совпадение в полном тексте источника
… Protective effects of a lipid extract from hard-shelled mussel (Mytilus coruscus) on intestinal integrity after lipopolysaccharide challenge in mice. Nutrients. 2018;10:860. doi: 10.3390/nu10070860. 61. …