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668 results for “Mussels”
Parasitism dramatically alters the ecosystem services provided by freshwater mussels
<p>Parasites can indirectly affect ecosystem function by altering host phenotype, but the trait-mediated impacts of parasitism at an ecosystem level remain poorly characterised. However, understanding the influence of parasites is central to understanding the ecosystem services provided by host species, especially in an era of global environmental change.</p> <p>We examined the effect of native (the trematode <em>Rhipidocotyle campanula</em>) and invasive (the bitterling fish <em>Rhodeus amarus</em>) parasites, and their interaction, on the clearance rates of unionid mussels, a dominant ecosystem-engineering group that modifies freshwater ecosystems worldwide. We used a combination of field experiments, laboratory experiments, and ecological simulations to demonstrate the phenotypic impact of parasites on the functional response of two mussel species across an environmental gradient (suspended particle concentration), and extended this with host and parasite community data to demonstrate the consequences for a real-world ecosystem, the Old West River in Cambridgeshire, England.</p> <p>Both parasites altered the clearance rates of their hosts but in contrasting fashion: while <em>R. campanula</em> increased host clearance rates relative to uninfected conspecifics under all conditions, <em>R. amarus</em> suppressed clearance rates at high suspended particle concentrations (eutrophic conditions) but elevated them otherwise. The parasites displayed different infection patterns in the two host species, and the invasive <em>R. amarus</em> rarely co-infects mussels with <em>R. campanula</em>.</p> <p>Given their disparate effects, the parasites' distributions reversed the relative filtration capacity of the two host species under high vs. low concentrations of suspended particles, demonstrating how differences between the infection patterns of native and invasive parasites, as well as their individual effects, need to be considered. Overall, the proportion of daily river discharge filtered by the combined mussel community changed by up to 96% in the presence of parasites. By incorporating multiple host species and multiple parasite species, we provide ecologically relevant evidence for the trait-mediated effects of parasites on ecosystem processes.</p> <p>Our study demonstrates that parasitism can significantly alter wider ecosystem processes by changing the phenotype of their host. Future work on ecosystem function should take parasitism into account, and consider both trait-mediated and density-mediated effects.</p>
CS9 - Mussel offshore farm technology Sweden - profitability model 2022
<p>The dataset contains a standard profitability analysis of a mussel farm in Sweden utilising a novel farming method of tube and net technology with potential to be used in exposed and offshore areas. The profitability of the farm is analysed by estimating net present value and sensitivity analysis to calculate variations in financial returns under different conditions. Data on costs and productivity was classified as confidential for industrial property protection and will not uploaded in any public repository</p>
Fig. 1 in Caddisflies Stenopsyche marmorata (Trichoptera: Hydropsychidae) exploit river mussels as anchors for their nets
Fig. 1. Last instar larva of the caddysfly Stenopsyche marmorata from Komarovka River.
Fig. 2 in Caddisflies Stenopsyche marmorata (Trichoptera: Hydropsychidae) exploit river mussels as anchors for their nets
Fig. 2. Live specimens of Middendorffinaia mongolica used as anchor by net-spinning
Data and Code for: Biogeographic variation in mussel shell thickness and drilling predation on rocky shores
<p><strong><u><span>Abstract: </span></u></strong></p> <p><span>Predator and prey species are often distributed over broad geographic ranges where reciprocal selection can shape the interactions between them. However, few studies have addressed how environmentally-driven variation in prey traits might create a landscape of selection that shapes the evolution of predator traits. We investigated whether variation in the drilling capacity of a predatory snail (the channeled dogwhelk, <em>Nucella canaliculata</em>) is associated with variation in prey defenses (mussel shell thickness) over ~1,000 km of coastline in the northeast Pacific. To test this hypothesis, we first hatched and raised snails from 6 populations under common laboratory conditions for a year. We then challenged these naïve snails with a series of mussels (<em>Mytilus californianus</em>) of increasing shell thickness to quantify their maximum drilling capabilities. Dogwhelks from California drilled mussels that were up to 3.4 times thicker than those handled by dogwhelks from Oregon. To quantify the spatial mosaic of mussel shell thickness, we analyzed <em>M. californianus</em> shells collected from the same six sites during three time periods (2000-2001, 2008-2009 and 2019). In the two earlier sampling periods, mussels from the central Oregon coast were consistently and substantially thicker than those from California. Thus, our findings are consistent with the hypothesis that prey defenses vary across the overlapping geographic ranges of these species, with the potential for strong prey-driven selection on the predator in California, and a co-evolutionary cold spot on the Oregon coast. However, relative to prior decades, mussel shells appear to be thinning, particularly on the Oregon coast. These changes are consistent with recent ocean acidification research in the northeast Pacific and may signal shifts in the selective landscape that has shaped the evolution of this dogwhelk-mussel interaction. Given the rapid pace of global environmental change, our study highlights the importance of studying species interactions within an explicit geographic context of shifting selection pressures. </span></p>
Dataset: Stable oxygen and carbon isotopes in freshwater pearl mussels from ultrastructurally distinct shell portions
<p>Oxygen isotopes in stream water can serve as natural tracers of watershed dynamics. Freshwater pearl mussels provide δ<sup>18</sup>O<sub>water</sub> estimates that overcome temporal and spatial limitations of instrumental records. The reliability of shell‑based δ<sup>18</sup>O<sub>water</sub> reconstructions depends on understanding which shell layer biomineralizes closer to oxygen isotopic equilibrium with ambient water<em>.</em></p> <p>This dataset contains isotope data obtained from freshwater pearl mussel shells<em>,</em> as discussed in the article titled "Biologically driven isotope fractionation in ultrastructurally different shell portions of freshwater pearl mussels <em>(Margaritifera margaritifera):</em> Implications for stream water δ<sup>18</sup>O reconstructions".</p> <p>The dataset includes δ<sup>18</sup>O and δ<sup>13</sup>C values from field-collected and tank-reared bivalve shells, complemented by <em>in-situ</em> δ<sup>18</sup>O<sub>water</sub> measurements from the tanks and shell growth rates of the tank-reared specimens.</p>
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.
Fig 2 in The effect of sulphur goatfish, sesarma, and green mussel as feed on the growth and survival of mud crab (Scylla paramamosain) in recirculation systems
Fig 2: Histogram of Survival Growth Rate (SGR)
Fig 1 in The effect of sulphur goatfish, sesarma, and green mussel as feed on the growth and survival of mud crab (Scylla paramamosain) in recirculation systems
Fig 1: Histogram of Food Conversion Ratio (FCR) Calculation
Fig 3 in The effect of sulphur goatfish, sesarma, and green mussel as feed on the growth and survival of mud crab (Scylla paramamosain) in recirculation systems
Fig 3: Histogram of Survival Rate (SR)
Fig. 1 in Study on sperm heteromorphism in some mussels (Bivalvia: Mytilidae) from the Sea of Japan
Fig. 1. Map of the studied area and position of sampling site in Vostok Bay (Sea of Japan).
Рис. 1. Карта района исследованиЯ и место сбора материала in Study on sperm heteromorphism in some mussels (Bivalvia: Mytilidae) from the Sea of Japan
Рис. 1. Карта района исследованиЯ и место сбора материала
Effects of the Invasive Freshwater Mussel Limnoperna fortunei on Sediment Properties and Accumulation Rates
<p>Environmental data and results of an experiment conducted in the vicinity of the Río de la Plata Estuary (Argentina), aimed at assessing the influence of the invasive mussel <em>Limnoperna fortunei</em> on sediment properties and accumulation rates. In the experiment, eighteen 20 L flow-through experimental units with and without mussels were used monitoring where changes in the mass and characteristics of the sediments accumulated throughout a yearly cycle in monthly, biannual and annual intervals.</p>
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.
Figure 1 in Validation of reference genes for quantitative expression analysis by qPCR in various tissues of date mussel (Lithophaga lithophaga)
Figure 1. Distribution of Cq values of candidate reference genes in date mussel (L. lithophaga).
Figure 2 in Validation of reference genes for quantitative expression analysis by qPCR in various tissues of date mussel (Lithophaga lithophaga)
Figure 2. Average expression stability (M-value) of reference genes evaluated by geNorm.
Figure 5 in Structural and biological characterization of two freshwater mussel shells (Bivalvia: Unionidae)
Figure 5. SEM image of the nacreous layer of the shells of (A) P. semirugata and (B) L. wheatleyi.
Figure 6 in Structural and biological characterization of two freshwater mussel shells (Bivalvia: Unionidae)
Figure 6. The growth front of the nacre of (A) P. semirugata and (B) L. wheatleyi.
Figure 2 in Structural and biological characterization of two freshwater mussel shells (Bivalvia: Unionidae)
Figure 2. (A) Potomida semirugata and (B) Leguminaia wheatleyi.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.