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146 results for “Mytilus”
РИС. 7. Спектры ЭнергодисперсионноЙ рентгеновскоЙ спектроскопии (ЭДС(х)) лигамента Замкового краЯ (обоЗначено стрелками) левоЙ (A, A1) и правоЙ (B, B1) створок раковины личинок мидии Mytilus galloprovincialis на стадии великонхи с "глаЗком". in Морфометрические особенности личинок мидии Mytilus galloprovincialis (Lamarck, 1819) (Bivalvia: Mytilidae) в онтогенеЗе
РИС. 7. Спектры ЭнергодисперсионноЙ рентгеновскоЙ спектроскопии (ЭДС(х)) лигамента Замкового краЯ (обоЗначено стрелками) левоЙ (A, A1) и правоЙ (B, B1) створок раковины личинок мидии Mytilus galloprovincialis на стадии великонхи с "глаЗком".
FIG. 3 in Морфометрические особенности личинок мидии Mytilus galloprovincialis (Lamarck, 1819) (Bivalvia: Mytilidae) в онтогенеЗе
FIG. 3. Larvae of the mussel Mytilus galloprovincialis at the veliger stage (A = 134.0 µm, B = 143.0 µm, C = 164.0 µm). Scale: 30 µm. A1, B1, C1 demonstrate SEM images of the hinge edge of the veliger shell: (a) left valve, (b) right valve (see description in text).
РИС. 1. Личинки мидии Mytilus galloprovincialis на стадиЯх: A – стерробластулы (стрелками обоЗначены три рЯда ресничек) и B – трохофоры (стрелкоЙ обоЗначены реснички апикального султанчика). МасШтаб: 15 мкм. FIG. 1. Larvae of the mussel Mytilus galloprovincialis at two different stages: (A) –sterroblastula (arrows indicate three rows of cilia) and (B) – trochophore (the arrow indicates cilia of the parietal plume). Scale: 15 µm. in Морфометрические особенности личинок мидии Mytilus galloprovincialis (Lamarck, 1819) (Bivalvia: Mytilidae) в онтогенеЗе
РИС. 1. Личинки мидии Mytilus galloprovincialis на стадиЯх: A – стерробластулы (стрелками обоЗначены три рЯда ресничек) и B – трохофоры (стрелкоЙ обоЗначены реснички апикального султанчика). МасШтаб: 15 мкм. FIG. 1. Larvae of the mussel Mytilus galloprovincialis at two different stages: (A) –sterroblastula (arrows indicate three rows of cilia) and (B) – trochophore (the arrow indicates cilia of the parietal plume). Scale: 15 µm.
РИС. 4. Личинки мидии Mytilus galloprovincialis на стадии великонхи (A – 190,0 мкм; B – 221,0 мкм; C – 253,0 мкм). МасШтаб: 30 мкм. A1; B1; C1 – СЭМ-иЗображениЯ Замкового краЯ раковины личинок на стадии великонхи: a – леваЯ створка; b – праваЯ створка. (Описание в тексте). in Морфометрические особенности личинок мидии Mytilus galloprovincialis (Lamarck, 1819) (Bivalvia: Mytilidae) в онтогенеЗе
РИС. 4. Личинки мидии Mytilus galloprovincialis на стадии великонхи (A – 190,0 мкм; B – 221,0 мкм; C – 253,0 мкм). МасШтаб: 30 мкм. A1; B1; C1 – СЭМ-иЗображениЯ Замкового краЯ раковины личинок на стадии великонхи: a – леваЯ створка; b – праваЯ створка. (Описание в тексте).
Figure 2 in First report of some parasites from Mediterranean mussel, Mytilus galloprovincialis Lamarck, 1819, collected from the Black Sea coast at Sinop
Figure 2. Parasites of M. galloprovincialis: A. Nematopsis legeri, B. Peniculistoma mytili, C. Urastoma cyprinae, D. Parvatrema duboisi, E. Polydora ciliata, F. burrow (Λ) on the inner side of mussel shell.
Figure 3 in Short-time salinity fluctuations are strong activators of oxidative stress in Mediterranean mussel (Mytilus galloprovincialis)
Figure 3. Short-time salinity fluctuations promote ROS formation in hemocytes. Mussels were acclimated to high (24 - 40 ‰, HS) and low (6-14 ‰, LS) environmental salinity. ROS levels were analyzed based on flow cytometric measurement of fluorescence levels of hemocytes stained with DCF-DA. Bars indicate mean±SE. Results were considered significant when p<0.05 by Mann-Whitney test (n=10).
Figure 5 in Short-time salinity fluctuations are strong activators of oxidative stress in Mediterranean mussel (Mytilus galloprovincialis)
Figure 5. Activity of the antioxidant enzymes in gills of mussels following exposure to short-time salinity fluctuations. Activity of SOD (a), Activity of CAT (b). Mussels were acclimated to high (24-40‰, HS) and low (6-14 ‰, LS) environmental salinity. The control group was held at 18‰. Each bar represents the mean value from 10 samples with the standard error. Results were considered significant when p<0.05 by Mann-Whitney test (n=10). (p <0.05).
Figure 2 in Short-time salinity fluctuations are strong activators of oxidative stress in Mediterranean mussel (Mytilus galloprovincialis)
Figure 2. Mortality of mussels exposed to short-time salinity fluctuations. The diagram shows the percentage of dead mussels acclimated to high (24-40 ‰, HS) and low (6-14‰, LS) environmental salinity. The control group was held at 18 ‰. Bars indicate mean±SE (n=10).
Fig. 4 in Filtration and respiration responses of mussels (Mytilus edulis) to trematode parasite infections (Renicola roscovita) and transient heat exposure
Fig. 4. Filtration rate in relation to infection intensity (metacercariae mussel– 1) for small (A) and large (B) mussels. Generalized Additive Mixed Models (GAMMs) predictions (lines) and 95 % CIs (shaded area) are conditioned on the average time points. Each point represents filtration measurement per minute and each stratum shows temporal filtration of one mussel.
Fig. 3 in Filtration and respiration responses of mussels (Mytilus edulis) to trematode parasite infections (Renicola roscovita) and transient heat exposure
Fig. 3. Linear mixed models of filtration and respiration rates of small (A, C) and large (B, D) M. edulis, either uninfected (light blue) or infected (light pink) with Renicola roscovita under a constant temperature of 17 ◦C. The bottom red line in the subplot B indicates the interval of significant difference between smoothers. The shaded area represents 95 % CIs. Each point represents the filtration or respiration rate measured minutely. The sample size for each group of small or large mussels was 9–18 and 9–16 for infected and uninfected, respectively. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 2 in Filtration and respiration responses of mussels (Mytilus edulis) to trematode parasite infections (Renicola roscovita) and transient heat exposure
Fig. 2. Post-warming scaled mussel filtration (A) and respiration (B) in relation to infection intensity. Generalized Additive Mixed Models (GAMMs) predictions (lines) and 95 % CIs (shaded area) are conditioned on the average post-warming time points. Individual points represent filtration or respiration measured every 5 min and each stratum represents measurements of one mussel.
Fig. 1. Mussel filtration and respiration responses during Experiment 1 in Filtration and respiration responses of mussels (Mytilus edulis) to trematode parasite infections (Renicola roscovita) and transient heat exposure
Fig. 1. Mussel filtration and respiration responses during Experiment 1. Generalized Additive Mixed Models (GAMMs) of responses of small size mussels uninfected and infected with Renicola roscovita during exposure to a constant mild temperature (for 5 h) followed by a 24-h thermal fluctuation. Each point represents filtration or respiration measurement per 5 min (shaded areas represent 95 % CIs). Sample size for each group was 8 and 11 for infected and uninfected, respectively. The negative values recorded during the metabolic depression phase are due to extra random variation in the measurement, variability between individuals and the white noise of oximeter device.
Figure 2 in Sex inversion in cultivated mussels Mytilus galloprovincialis Lam. (Crimea, Black Sea) under influence of external environmental factors
Figure 2. Sex inversion in females of the cultivated mussel M. galloprovincialis after a one-month-long laboratory experiment and three-months-long conditioning at the mussel-and-oyster farm, 2016–2017.
Data from: Multimodal in situ datalogging quantifies inter-individual variation in thermal experience and persistent origin effects on gaping behavior among intertidal mussels (Mytilus californianus)
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Data from: Adaptive genetic variation distinguishes Chilean blue mussels (Mytilus chilensis) from different marine environments
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Data from: A genome-wide approach to the phylogeography of the mussel Mytilus galloprovincialis in the Adriatic and the Black Seas
Connectivity between populations shapes the genetic structure of species being crucial for an effective management of environmental resources. Genetic approaches can provide indirect measures of connectivity, allowing the identification of genetically differentiated - unconnected - populations. In this study, we applied a 2b-RAD approach based on hundreds of polymorphic loci to provide the first detailed insight into the population genomics of the Mediterranean mussel Mytilus galloprovincialis in part of its native geographical range. We sampled 19 localities within the Mediterranean and Black Seas, and analyzed a total of 478 samples. We detected strong differences between the two seas, whereas no differences were found between samples from the Western and Central Mediterranean and within Western Mediterranean samples. In the Central Mediterranean a significant differentiation emerged comparing Central Adriatic samples with those from South Adriatic and Ionian Seas. Furthermore, an East-to-West genetic structuring was found in the Central Adriatic Sea, which was not present in the Southern Adriatic and Ionian Seas. These results possibly reflect the local oceanography, with a Middle Adriatic gyre unable to prevent genetic differentiation in this species, and a Southern Adriatic gyre that effectively mixes propagules in Southern areas. In the Black Sea, no signal of genetic structure was found, although samples were spaced at similar distances as in the Adriatic-Ionian area. Genetic connectivity patterns of M. galloprovincialis reveal peculiar species-specific features respect to other species with similar larval duration, suggesting caution in using genetic connectivity data of single species in defining conservation units. We recommend of using genetic connectivity data of many species representing a variety of life history traits, and we call for new investigations using high resolution population genomics, particularly in the Black Sea, to understand if areas separated by hundreds of kilometers can be considered genetically connected as mussels' data suggest. This information will be critical to ensure "a well-connected system of protected areas" according to Aichi Target 11 of the Convention on Biological Diversity.
Data from: Plasticity of thermal tolerance and its relationship with growth rate in juvenile mussels (Mytilus californianus)
Complex life cycles characterized by uncertainty at transitions between larval/juvenile and adult environments could favor irreversible physiological plasticity at such transitions. To assess whether thermal tolerance of intertidal mussels (Mytilus californianus) adjusts to post-settlement environmental conditions, we collected juveniles from their thermally buffered microhabitat from high and low-shore locations at cool (wave-exposed) and warm (wave-protected) sites. Juveniles were transplanted to unsheltered cages at the two low sites or placed in a common garden. Juveniles transplanted to the warm site for one month in summer had higher thermal tolerance, regardless of origin site. In contrast, common-garden juveniles from all sites had lower tolerance indistinguishable from exposed-site transplants. After six months in the field plus a common garden period, there was a trend for higher thermal tolerance at the protected site, while reduced thermal tolerance at both sites indicated seasonal acclimatization. Thermal tolerance and growth rate were inversely related after one but not six months; protected-site transplants were more tolerant but grew more slowly. In contrast to juveniles, adults from low-shore exposed and protected sites retained differences in thermal tolerance after common garden treatment in summer. Both irreversible and reversible forms of plasticity must be considered in organismal responses to changing environments.
Распространение средиЗемноморской мидии Mytilus galloprovincialis Lamarck, 1819 в Японском море. in The extension of the distributional range of an invasive mussel, Mytilus galloprovincialis (Bivalvia: Mytilidae) in the Sea of Japan
Распространение средиЗемноморской мидии Mytilus galloprovincialis Lamarck, 1819 в Японском море.
Individual volumes and masses of 50 mussels (Mytilus edulis), collected at Agon (France) the 4th april 2018
<p>Individual volumes (ml) and masses (g) of 50 mussels (<em>Mytilus edulis</em>), collected at Agon (France) the 4th april 2018 . the volume was measured by overflow by reading the volumes difference obtained when an individual is immersed in a known volume of water (20ml). The mass is measured with an electronic scale. This dataset was used to convert mussel volume (Hectolitre) in mass (Kilogram) in an historical time series during my Matser 1 thesis in 2018 : Study of commercial fishs in Seine Bay by use the historical administrative reports for 1866 at 1980 - UFR Sciences et Techniques du Havre (France). The associated model (a linear regression : weight = a*Volume + b) is presented in the R script "ana_mussel.R".</p>
Figure 1 in First report of some parasites from Mediterranean mussel, Mytilus galloprovincialis Lamarck, 1819, collected from the Black Sea coast at Sinop
Figure 1. Map of the sampling areas.
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