Rapid Biomonitoring Method of Chrysanthemum Sanmao toxins in Water
A technology of golden algae and toxins, applied in the field of breeding, can solve the problems of lack of physical and chemical analysis methods, difficult observation, and economic losses of farmers
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Embodiment 1
[0045] On the morning of November 20, 2017, in a bream breeding pond in Yancheng, Jiangsu Province (average body length 6cm), it was found that there were bream swimming under the water surface on the edge of the pond. ; On November 21, several breams were found to be dead; 4 breams that were on the verge of death were randomly selected, and the base of the surface fins was observed to be congested, and the color of the rear of the fish became lighter; There were no parasites on the gill filaments, and the gill filaments were normal (slightly rotten); the fish body was dissected, the intestinal tract was devoid of food, and there were no obvious lesions; the color of the pond water was brown, the pH value was 9.0, and almost no ammonia nitrogen and nitrite were detected ( close to 0). Based on the analysis of the above situation, there is a problem with the water quality. Combined with the normal results of the water quality test, the possibility of algae poisoning in the wate...
Embodiment 2
[0050]In a farm in Taizhou, Jiangsu Province, grass goldfish (average body length 10cm) were raised in winter in the outer earthen pond, and a large number of fish died. Water quality testing: pH dropped significantly, ammonia nitrogen and nitrite were normal, but the water hardness was 1000mg / L, which was high. Detection of algae in aquaculture water: there are a large number of golden algae, cryptoalgae and some zooplankton. Compared with Table 1, the following experimental design scheme was adopted and relevant results were recorded. The results are shown in Table 3.
[0051] The test result of table 3 embodiment 1
[0052]
[0053] Looking up Table 1, it is found that the toxicity of golden algae in cultured water is greater than or equal to 25ITU / mL.
Embodiment 3
[0055] On April 13, 2016, in Taizhou, Jiangsu Province, a breeding base of scallop seedlings (average body length 3cm), one of the 6 mu ponds was full of yellow water, the transparency was less than 20cm, and there were a lot of golden algae in the microscopic examination. Compared with Table 1, the following experimental design scheme was adopted and relevant results were recorded. The results are shown in Table 4.
[0056]
[0057] According to Table 1, the toxicity of golden algae in aquaculture water is equal to 1ITU / mL, and continuous monitoring is recommended.
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