ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
We used microsatellite markers to assess the population genetic structure of the scribbled rabbitfish Siganus spinus in the western Pacific. This species is a culturally important food fish in the Mariana Archipelago and subject to high fishing pressure. Our primary hypothesis was to test whether the ...
Shoreline, which is also known as coastline is the boundary between land and sea keeps changing its shape and position continuously due to dynamic environmental condition. This change is mainly associated with waves, tides, winds, periodic storms, sea level change, and the geomorphic processes of erosion ...
Simulation is known to be a powerful technique to analyze the dynamic behavior of a variety of systems. Dynamic programming is a technique to solve sequential decision making problems. The numerical solution of a dynamic program is a table with an optimal decision for all feasible states of the system. ...
In order to overcome the shortcoming of being trapped in local minima in basic FSOA(an optimization approach on using fishing strategy), an improving FSOA is presented based on stochastic search. The improving algorithm makes use of the stochastic searh approach and do not adopt the strategy of constricting ...
Wetlands are valuable habitats that provide important social, economic, and ecological services such as flood control, water quality improvement, carbon sequestration, pollutant removal, and primary/secondary production export to terrestrial and aquatic food chains. There is disagreement about the need ...
Traditional salt farming in Goa, India has been practised for the past 1,500 years by a few communities. Goa’s riverine estuaries, easy access to sea water and favourable climatic conditions makes salt production attractive during summer. Salt produced through this natural evaporation process also played ...
The decommissioning activities for fixed offshore platforms in Malaysia are expected to rise significantly. For many of the approximate 300 oil platforms, their service life is approaching the end. Thus far, only a handful of offshore platforms in Malaysian waters have been decommissioned mainly due ...
The purposes of this study in multi-robot systems is in the implementation of self-controlled multi-robot systems that operate without human aid in order to eliminate potential human risk by letting them deal with complex and dangerous operations that can't be done by a single robot system. In case ...
In this paper development and deployment of wireless network for water quality measurement units in multiple fish ponds is presented. The developed portable water quality measurement units are installed on a floating platform to measure water quality parameters such as dissolved oxygen, pH, temperature, ...
Un-ionized ammonia (UIA) in freshwater is a primary source of toxins that kill freshwater fish. Concentrations as low as 0.03 mg/L can harm fish and concentrations of more than 2.00 mg/L can kill them. The availability of water quality monitoring systems that can directly measure UIA without any chemical ...
This paper introduces theories related to 3S technology, i.g., remote sensing (RS), geographic information system (GIS) and global positioning system (GPS). We mainly discuss the application of 3S technology in the fishing, aquaculture, marine environmental monitoring, firshing boat navigating and other ...
Monitoring important aquatic processes like harmful algal blooms is of increasing interest to public health, ecosystem sustainability, marine biology, and aquaculture industry. This paper presents a novel approach to spatiotemporal aquatic field reconstruction using inexpensive, low-power, mobile sensing ...
We study the use of simulated Hyper-S pectral Imaging sensor (HSI) on Environmental Satellite 1A (HJ-1A) satellite remote sensing data for estimating Secchi depth of coastal waters. Field data such as Secchi depth of the Sishili Bay in Yantai's coastal waters were collected, meanwhile, hyperspectral ...
Hyperspectral images are spectrally over determined, which means that they provide ample spectral information to identify and distinguish spectrally unique materials. With the development and perfection of the hyperspectral remote sensing technologies, it has been the major technique applied for various ...
In order to help data providers make informed decisions regarding the availability and accessibility of Earth observations for societal benefit, a cross-sectoral meta-analysis of observation priorities was conducted from the perspective of users. The analysis was organized around the Group on Earth ...
The low sound speed in water makes propagation delay (PD)-based range estimation attractive for underwater acoustic localization (UWAL). However, due to the long channel impulse response and the existence of reflectors, PD-based UWAL suffers from significant degradation when PD measurements of nonline-of-sight ...
Undergraduate research is widely regarded as a high impact practice. However, usually only the highest achieving students are rewarded with undergraduate research opportunities. This paper reports on the successful implementation of a student research program offering the weakest 10% of incoming freshmen ...
Objective To explore ways of controlling Chrysomya putoria, the African latrine fly, in pit latrines. As pit latrines are a major source of these flies, eliminating these important breeding sites is likely to reduce village fly populations, and may reduce the spread of diarrhoeal pathogens. Methods We ...
African pit latrines produce prodigious numbers of the latrine fly, Chrysomya putoria, a putative vector of diarrhoeal pathogens. We set out to develop a simple, low-cost odour-baited trap for collecting C. putoria in the field. A series of field experiments was carried out in The Gambia to assess the ...