ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
The neurotoxic amino acid, domoic acid (DA), is naturally produced by marine phytoplankton and presents a significant threat to the health of marine mammals, seabirds and humans via transfer of the toxin through the foodweb. In humans, acute exposure causes a neurotoxic illness known as amnesic shellfish ...
Studies of coordinated movement have found that, in many animal species, bolder individuals are more likely to initiate movement and shyer individuals to follow. Here, we show that in pairs of foraging stickleback fish, leadership is not merely a passive consequence of temperamental differences. Instead, ...
Health risks associated with sewage-contaminated recreational waters are of important public health concern. Reliable water monitoring systems are therefore crucial. Current recreational water quality criteria rely predominantly on the enumeration of bacterial indicators, while potentially dangerous ...
The aims of the study were to determine total mercury concentrations in “rainbow trout Oncorhynchus mykiss (Walbaum)” at their embryo-larval and juvenile stages and to assess mercury concentration dynamics in individual tissues. Samples of rainbow trout were collected at two-month intervals over a period ...
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 ...