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ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57

Shipbuilding Docks as Experimental Systems for Realistic Assessments of Anthropogenic Stressors on Marine Organisms

Abstract Empirical investigations of the impacts of anthropogenic stressors on marine organisms are typically performed under controlled laboratory conditions, onshore mesocosms, or via offshore experiments with realistic (but uncontrolled) environmental variation. These approaches have merits, but ...

The Prevalence of Plasmid-mediated Quinolone Resistance Genes in Escherichia coli Isolated from Hospital Wastewater Sources in Tehran, Iran

Background: Considering the importance of hospital wastewaters as potential reservoirs for the dissemination of bacterial pathogens such as Escherichia coli and antibiotic resistance genes in the environment, the need for such information becomes imperative. Methods: E. coli strains were isolated ...

Spatial Distribution and Fuzzy Health Risk Assessment of Trace Elements in Surface Water from Honghu Lake

Previous studies revealed that Honghu Lake was polluted by trace elements due to anthropogenic activities. This study investigated the spatial distribution of trace elements in Honghu Lake, and identified the major pollutants and control areas based on the fuzzy health risk assessment at screening level. ...

Occurrence of Extended-Spectrum and AmpC-Type β-Lactamase Genes in Escherichia coli Isolated from Water Environments in Northern Thailand

Sixty-eight cefotaxime-resistant Escherichia coli isolates were recovered from different water environments in Northern Thailand. Isolates were mostly resistant to ceftazidime and aztreonam (>90%). The most common extended-spectrum β-lactamase-encoding gene was blaCTX-M-group 1 (75%) followed by ...

Stepped-wedge cluster-randomised controlled trial to assess the cardiovascular health effects of a managed aquifer recharge initiative to reduce drinking water salinity in ...

Introduction Saltwater intrusion and salinisation have contributed to drinking water scarcity in many coastal regions globally, leading to dependence on alternative sources for water supply. In southwest coastal Bangladesh, communities have few options but to drink brackish groundwater which has been ...

Identification of an essential virulence gene of cyprinid herpesvirus 3

The genus Cyprinivirus consists of a growing list of phylogenetically related viruses, some of which cause severe economic losses to the aquaculture industry. The archetypal member, cyprinid herpesvirus 3 (CyHV-3) causes mass mortalities worldwide in koi and common carp. A CyHV-3 mutant was described ...

Non-Mammalian Vertebrates: Distinct Models to Assess the Role of Ion Gradients in Energy Expenditure

Animals store metabolic energy as electrochemical gradients. At least 50% of mammalian energy is expended to maintain electrochemical gradients across the inner mitochondrial membrane (H+), the sarcoplasmic reticulum (Ca++), and the plasma membrane (Na+/K+). The potential energy of these gradients can ...

Change detection of land use and land cover using remote sensing techniques

Land use and Land cover plays a vital role in the aspect of change detection studies. Land use represents how the land is being used. It includes categories like agriculture, industrial lands. Land cover refers to natural or manmade properties. It includes waterbodies and vegetation. The ratio of Land ...

Design of off grid trigeneration system using renewable energy sources for residential purpose in India

This paper refers to an integrated trigeneration systems dedicated for isolated residents with energy independence. It is about solar photovoltaic and solar thermal systems based micro-combined cooling, heating and power systems in the 1 to 10 kW scale for residential and light commercial applications. ...

Assessment of water parameters using Z-test for planning of aqua monitoring system using underwater sensor

Aquaculture planning and development is a very important process that will enhance and mentor the growth of the sector, while ensuring its long-term sustainability with environmentally and economically. In this proposed work, we have considered two rivers; Netravati and Sita which flows west coastal ...

Design and deployment of a WSN for water turbidity monitoring in fish farms

Fish farms pretend to be the sustainable option to provide fish. The water quality is very important to ensure the fish performance. Thus, the monitoring of the water quality is crucial in order to automatize different process in facilities. In this paper, we present a system to monitor the turbidity ...

Design of an autonomous aerator

Aquaculture has resorted to the use of technology to make control of important variables and improve production. There were two problems observed in the Marine Aquaculture Station — EMA of the Federal University of Rio Grande, more specifically related to the aeration of the culture tanks to pisciculture ...

Development and validation of robotic cleaning system for fish processing plants

This paper presents the development of a robotic cleaning solution for a fish processing plant. The project is currently at the stage of a first prototype consisting of a serial manipulator, a vertical linear axis and a rotational axis for the vertical axis. The purpose of the prototype is to validate ...

The evolution of ocean acidification observing efforts in Alaska and the development of an Alaska Ocean acidification network

Data and models show that Alaska waters are highly vulnerable to low saturation states of aragonite, an indicator of increasing ocean acidification conditions for this high-latitude region. With Alaskans heavily reliant on the ocean for their lives and livelihoods, both direct and indirect effects of ...

Online fish tracking with portable smart device for ocean observatory network

Nowadays, ocean observatory networks, which gather and provide multidisciplinary, long-term, 3D continuous marine observations at multiple temporal spatial scales, play a more and more important role in ocean investigations. In this paper, we try to develop a portable smart device with online fish detection ...

Fish recognition using convolutional neural network

Studying fish recognition has important realistic and theoretical significance to aquaculture and marine biology. Fish recognition is challenging problem because of distortion, overlap and occlusion of digital images. Previous researchers have done a lot of work on fish recognition, but the classification ...

Fluorometers: Integration experiences with unmanned vehicles

The development of revolutionary tools such as AUVs and other unmanned vehicles has offered oceanographers a chance to explore areas that are not easily accessible and address questions that have yet to be answered. The ability of unmanned vehicles to reach these under-sampled parts of the ocean is ...

FaaS — Fish as a service biomimetic fish drone for ocean monitoring

Fish-as-a-Service (FaaS) is a business-to-business model offering monitoring services performed by a biomimetic fishlike drone. FaaS considers environmental, scientific, and business concerns when addressing marine monitoring, providing alternative methodology while preserving ocean resources. The key ...

Simulation of marine entanglement a software tool used to predict entanglement of leatherback turtles

A software tool has been developed to simulate the entanglement of leatherback sea turtles (Dermochelys coriacea) in fishing and aquaculture gear. Entanglements are well documented and are increasing in frequency due to greater fishing effort and with the use of synthetic materials in marine applications. ...

A novel low cost ROV for aquaculture application

Marine aquaculture is deeply rooted in Norwegian national economics and traditions, especially in the MØre og Romsdal region. This paper presents the development of a novel ROV for aquaculture inspection in marine application to provide first-hand information in fishery nets. The ROV is a part of so ...

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