ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
Salmonoid fish bdellosis is caused by leech-like ectoparasites in the monogenetic order Acanthobdellida. Although Acanthobdella species have been known to infect several threatened species in Eurasia, little is known about their ecology and epidemiology. In this paper, we report on the mass affection ...
This paper relies on a vaccination-based control strategy for a SEIR (susceptible plus infected plus infectious plus removed populations) propagation disease model. The control objective is to asymptotically track the removed-by-immunity population to the total population while achieving simultaneously ...
Water temperature is considered as one of the most important parameters which influence the growth rate and development of sea cucumbers as well as their distribution within the pond environment. As the change process of water temperature is dependent on the complicated meteorological and geophysical ...
In the aquaculture industry, the content of ammonia and nitrite in water has a big effect on aquaculture organisms. In this study, the authors adopted with the spectrum information fusion theory as the core, then designed a new water analyzer which based on spectral analysis of the water body compounds ...
Presents the table of contents of the 2012 International Conference on Systems and Informatics (ICSAI2012) proceedings.
Base on the 201 groups of data that accepted in the last ten years, a 3 layer (3,8,1) BP artificial neural network model on quickly predicting chlorophyll-a concentration in marine cage fish farming area was established. The model was established in software MATLAB7.1 (MATTrix LABoratory) using BP network. ...
Based on theory and method of ecological footprint, this paper adopted ecological pressure index, ecological occupation index and ecological economy coordination index as evaluation indexes of regional ecological security. Then the paper constructed grade classification standard of ecological security ...
An analytical procedure based on capillary GC-MS was developed for the quantification and characterization of 2, 4-dimethylaniline and amitraz in fish muscle. It contained an n-hexane/methanol extraction step using accelerated solvent extraction (ASE), and a selected ion monitoring (SIM) detection system ...
The karyotype of Onychostoma rara, which is endemic to China, was investigated for the first time using the methods of culture of kidney cell in vivo, and the numbers, sizes and morphology of the chromosomes in the species were reported. A total of 210 mitotic metaphases from 10 individual fish of O. ...
The effects of the dried macro alga, Gracilaria lemaneiformis (Rhodophyta), on photosynthesis of a highly stress-resistant micro alga, Dunaliella sallina, were studied. D. sallina was cultured with dried G. lemaneiformis under controlled laboratory conditions. Photosynthetic oxygen evolution was measured ...
Located in the inland arid regions of northwest China, Malian River Basin suffers an intensive conflict of supply and demand of water resources. And it encounters an even worse situation because of its brackish water which affects the utilization of the water. The feasibility of desalination of the ...
The main pollutions of Xiangshan Harbor were inorganic nitrogen and inorganic phosphorus. The annual average value of inorganic nitrogen was 0.594 mg.dm-3, the lowest value was in spring (0.194 mg.dm-3), and the highest was in winter (2.212 mg.dm-3). The annual changing trend of inorganic nitrogen was ...
Lake eutrophication, a serious environmental issue in the world, especially in recent years. In Lake Yangzonghai, a plateau deepwater lake in China, the anthropogenic disturbances have increased the eutropication, while people has not as yet known the effects and the main contributors of this increase. ...
Coastal zone industrial activity as well as settlements development and attractiveness for tourism generate persistent coast waste contamination. Appropriate industrial and domestic waste management and utilization are essential for ensuring reduction of coastal zone environmental pollution. Furthermore, ...
In a study to determine whether or not the Northeast Monsoon has a major effect on the distribution of metals in sediments, total Al, Cr, Fe, Mn, Ni, Pb and Zn were measured in twenty six surface sediment samples were collected from the South China Sea in the near-shore area off Pahang State of peninsular ...
Artificial reefs (ARs) have been established in Malaysian fisheries waters since 1975 using various materials such as discarded tyres, derelict and confiscated fishing vessel, reinforced concrete, Polyvinyl Chloride (PVC), fiberglass reinforce concrete (FRC), fiberglass, ceramic, combination of several ...
Nutrient pollution of coastal environments particularly by nitrogen (N) sources can lead to harmful algal blooms. Ameliorating the incidence of such events requires an understanding of how harmful taxa respond to different N sources. In particular, the blooms of toxic Heterosigma have been known to ...
Mobile sensors provide important spatial information for environmental monitoring, but current solutions are not scalable due to cost, safety, and efficiency concerns. This paper describes a drifting, depth profiling platform in development with real-time data streaming and visualisation at a material ...
In order to monitor bred fish in an offshore aquaculture cage farm and the aquatic environment surrounding the farm daily, a centralized remote monitoring system was developed. The system is composed of a group of Remote Detecting Nodes (RDNs) and a Local Monitor and Control Center (LMCC). RDNs based ...
With the increase of applications on underwater wireless sensor networks (UWSN), reliability of underwater communication (UWC) has become increasingly demanding. In this paper, a new underwater acoustic modem prototype design based M-ary different chirp spread signals (MCSS) is presented. Through sea ...