A Study on the Fish Diversity of Sanhuanpao Wetland in Heilongjiang Province

The current situation of fish in Sanhuanpao Wetland was investigated for the first time in this paper. In May (Spring), July (summer), September (autumn) 2016, it was sampled three times for investigation, and based on the investigation data about the fish caught by net 45 times in 9 sampling points, the species composition of fish community in the water was analyzed. The results showed that a total of 12 fish species were caught in this investigation, belonging to 4 orders, 6 families and 12 genera. There were 5 fish species for Cyprinidae, accounting for 41.7% of total species, followed by Cobitidae with 3 species, accounting for 25% of total species; Siluridae, Esocidae, Eleotridae and Channidae each had 1 species, accounting for 8.3% of total species. The fish with index of relative importance (IRI) greater than 1000 is the dominant species, and it was calculated that the dominant species were Carassius auratus gibelio, Rhynchocypris percnurus, Misgurnus mohoity, Cobitis taenia Linnaeus, and Perccottus glenii. In this paper, based on the number of individuals, by calculating Margalcf abundance index (D), Shannon-Wiener diversity index (H') and Pielou evenness index (J') for the fish in the water, the current situation of fish resources in Sanhuanpao Wetland was analyzed and the corresponding protection recommendations were put forward

Current Development and Prospects of Pond Smelt (Hypomesus olidus) Farming Industry in China

The pond smelt (Hypomesus olidus), originally transplanted from North Korea, was introduced to China in 1938 and gradually distributed to various areas of China. The pond smelt was the first fish species introduced to the water of China. It not only has the function of protecting water quality, and also has high economic and nutritional values which are helpful for diversifying the fishery productive activities of China. The present review analyzed the transplantation and production status of pond smelt in China, described the key situations and factors influencing the establishment and current level of aquaculture development. Since its introduction, the pond smelt transplantation in China was distributed in Northeast of China. From the 1980s, reservoirs and lakes all over China began to transplant pond smelt, and the transplantation of pond smelt went into the outbreak period. In order to improve the efficiency of transplantation, scientific and technical personnel studied the simple and practical technology of artificial breeding and transplantation, the medicine for preventing and controlling saprolegniasis which often leads to death of fertilized eggs. To meet the demand of market, more and more pond smelt processing products have been studied and developed, such as grilled, milk flavor, fish sauce, ham-sausage, and brew vinegar of pond smelt. The pond smelt farming in China has broad prospects development, yet there are also challenges to overcome. It is recommended to take proper policies for pond smelt development, strengthen pond smelt scientific research, transplantation technology training, establish pond smelt fisheries association, support dominant enterprises, and implement brand strategy

Haze Control by Industrialization: A Win-win Mode of Ecological Civilization and Economic Development

Haze control is a difficult and arduous battle, and it is a major decision concerning the people's livelihood and national ecological civilization construction. Taking Heilongjiang Province as an example, this paper introduced a new idea for haze control. Haze in Heilongjiang Province was mainly resulted from straw burning. Market-oriented, large-scale, and industrialized haze control relying on science and technology is new opportunity and challenge for realizing ecological civilization and revitalizing the economy of Heilongjiang Province

A Study of Phytoplankton Community Structure in Duobukuer Nature Reserve

In spring, summer, autumn 2015, we studied the seasonal variation of phytoplankton community structure in six rivers within Duobukuer Nature Reserve, and made preliminary evaluation of the water quality in Duobukuer Nature Reserve based on phytoplankton diversity. The results showed that a total of 7 phyla, 41 genera, 66 species and varieties of phytoplankton were identified in Duobukuer Nature Reserve; the annual species composition was dominated by diatom (59%) which also preponderated in dominant species (84.3%), biomass (68%) and abundance (75%), with no significant seasonal variation. Shannon-Wiener diversity index (H') and Pielou evenness index (J) were used to evaluate the water quality in 13 sampling points, and the results showed that the water quality was good in Duobukuer Nature Reserve, the sampling points 5, 6 and 12 presented β-pollution, and other sampling points were in an oligosaprobic-clean state