ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
The relative importance of genetic versus epigenetic changes in adaptive evolution is a hotly debated topic, with studies showing that some species appear to be able to adapt rapidly without significant genetic change. Epigenetic mechanisms may be particularly important for the evolutionary potential ...
Habitat structure plays an important mediating role in predator-prey interactions. However the effects are strongly dependent on regional predator pools, which can drive predation risk in habitats with very similar structure in opposite directions. In the Mediterranean Sea predation on juvenile sea ...
An underwater detection apparatus is provided. The underwater detection apparatus includes a transmitter (2), a receiver (2), a target detector (11), a density index value estimator (12, 15, 16) and a size index value calculator (13). The transmitter (2) transmits a transmission wave. The receiver (2) ...
The invention relates to a brake unit (3) for a catching device (2) of elevator systems (1) having a rolling element (28) on a rolling disk (27), which rolling element rolls on a stationary rolling track (20) of a braking and guiding rail (7) at least in some sections in the event of an activation. ...
A buoyant but submersible fish monitoring apparatus (1) castable on a fishing line (4) towards an area of water to be monitored, such as a river bed or a sea bed and associated method, the apparatus comprising or including an elongated housing (21,2b) having at the forward end thereof line connection ...
Currently, the chemical fingerprint comparison and analysis is mainly based on professional equipment and software, it’s expensive and inconvenient. This study aims to integrate QR (Quick Response) code with quality data and mobile intelligent technology to develop a convenient query terminal for tracing ...
High iron and eutrophic conditions are reported as environmental factors leading to accelerated low-water corrosion, an enhanced form of near-shore microbial induced corrosion. To explore this hypothesis, we deployed flow-through colonization systems in laboratory-based aquarium tanks under a continuous ...
Abstract In the Bohai Oilfield in China, the water injectors with sand control completion are characterized by multiple layers (2-6 layers), high single-layer injection rate (300-700 m3/d) and large borehole deviation (30-60°). The conventional wire fishing and the high-efficiency measuring and adjusting ...
The rate at which active animals can expend energy is limited by their maximum aerobic metabolic rate ( MMR). Two methods are commonly used to estimate MMR as oxygen uptake in fishes, namely during prolonged swimming or immediately following brief exhaustive exercise, but it is unclear whether they ...
Background Myxozoa is a well-known economically and ecologically important group of metazoan parasites, phylogenetically related to Cnidaria. High diversity of myxosporeans has been recorded in Russia and China; however, most of the species were solely morphologically characterised. Here, we identified ...
The genetic homogeneity of the Monterey Spanish mackerel Scomberomorus concolor population in the Gulf of California was confirmed using nine nuclear microsatellite loci in combination with mitochondrial cytochrome b gene sequences. Samples were collected from the upper and central Gulf areas, representing ...
Abstract The use of a probabilistic estimation analysis system that applies Monte Carlo simulation techniques to generate a deeper understanding of the risks inherent in well operations. The software and the process associated with its application represent a step forward in providing operators with ...
Worldwide growth of offshore renewable energy production will provide marine organisms with new hard substrate for colonization in terms of artificial reefs. The artificial reef effect is important when planning offshore installations since it can create habitat enhancement. Wind power is the most advanced ...
Indo-Pacific humpback dolphins (Sousa chinensis) have attracted considerable attention due to their critically endangered status and related conservation issues, but their trophic relationships and ecological significance in coastal ecosystems are poorly understood. For instance, this species is noticeably ...
Abstract The IOR is permanently issue for oil development. Zonal Water Injection Technology is a key technic about IOR. The zonal water injection technology faces several challenges for offshore oil field, such as numerous highly-deviated wells, complicated inter-layer contradiction, high cost, low ...
Abstract The innate immune system plays a pivotal role in defending invasion of microorganisms for scallops. Previous studies on immune-related genes in the Yesso scallop, Patinopecten yessoensis (Jay, 1857) have mainly focused on characterization and expression pattern in response to bacterial challenge, ...
Worldwide coral reef decline appears to be accompanied by an increase in the spread of hard coral diseases. However, whether this is the result of increased direct and indirect human disturbances and/or an increase in natural stresses remains poorly understood. The provision of baseline surveys for ...
The regionally endemic Galapagos Grouper, locally known as bacalao, is one of the most highly prized finfish species within the Galapagos Marine Reserve (GMR). Concerns of overfishing, coupled with a lack of fishing regulations aimed at this species raises concerns about the current population health. ...
Marine biodiversity is recognized by a wide and unique array of fascinating structures. The complex associations of marine microorganisms, especially with sponges, bryozoans, and tunicates, make it extremely difficult to define the biosynthetic source of marine natural products or to deduce their ecological ...
Metalloprotease Vsm is a major extracellular virulence factor of Vibrio splendidus. The toxicity of Vsm from V. splendidus strain JZ6 has been characterized, and production of this virulence factor proved to be temperature-regulated. The present study provides evidence that two forms (JZE1 and JZE2) ...