Sipunculus nudus is an important economic species because of its high nutritional and medicinal values. The exploitation and utilization of S. nudus primarily occur in the coastal regions of the Beibu Gulf. However, w...Sipunculus nudus is an important economic species because of its high nutritional and medicinal values. The exploitation and utilization of S. nudus primarily occur in the coastal regions of the Beibu Gulf. However, wild resource of S. nudus is rapidly decreasing because of the overexploitation, which has led to considerable developments of artificial breeding techniques. The cultivation scale of S. nudus has increased in response to successful artificial breeding; however, methods for culturing S. nudus in tidal flats or ponds require further study. Most studies have focused on the breeding, nutrition, medical value and ecological impact of these worms. Studies on the distribution, sediment requirements, nutrition characteristics, breeding techniques and aquaculture ecology of this species are summarized in this paper to promote the development of the aquaculture industry for S. nudus. The high biomass of S. nudus in the Beibu Gulf is positively correlated with the sediment characteristics and water quality of the region. The production of peanut worm has improved to some extent through culturing; however, the nutrient value and ecological environment problems have been observed, which reflect the over exploitation of trace elements and the sediment. These problems will worsen unless they are resolved, and the release of organic materials, nitrogen and phosphorus during harvesting impacts the coastal environment. Moreover, genetic erosion is a potential risk for larvae in artificial breeding programs in tidal flats. Therefore, culturing and collecting methods should be improved and the wild resource conservation should be implemented to promote the sustainable development of the peanut worm.展开更多
In the coming decades,plant agriculture must produce the food needed to sustain the world＇s burgeoning population.This challenge is made more daunting in light of a changing climate,scarcity of inputs such as water a...In the coming decades,plant agriculture must produce the food needed to sustain the world＇s burgeoning population.This challenge is made more daunting in light of a changing climate,scarcity of inputs such as water and fertilizer,and the need to grow more crops on increasingly marginal land.To achieve food security,we will need to fully exploit plant genetics to develop new crop varieties that produce higher yields of healthier food.展开更多
基金the National Natural Sci-ence Foundation of China (No. 41606137)Natural Science Foundation of Guangdong Province (No. 2015A030 310260)+2 种基金the Scientific Research Funds for Central Non-profit Institutes, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (Nos. 2014ZD01, 2013ZD01)the Marine Fishery Science and Technology Industry Projects from Guangdong Province (Nos. B201601-01, B201500B 04)the Science and Technology Plan Projects from Guangdong Province (Nos. 2013B090500081 and 2013B 040500020)
文摘Sipunculus nudus is an important economic species because of its high nutritional and medicinal values. The exploitation and utilization of S. nudus primarily occur in the coastal regions of the Beibu Gulf. However, wild resource of S. nudus is rapidly decreasing because of the overexploitation, which has led to considerable developments of artificial breeding techniques. The cultivation scale of S. nudus has increased in response to successful artificial breeding; however, methods for culturing S. nudus in tidal flats or ponds require further study. Most studies have focused on the breeding, nutrition, medical value and ecological impact of these worms. Studies on the distribution, sediment requirements, nutrition characteristics, breeding techniques and aquaculture ecology of this species are summarized in this paper to promote the development of the aquaculture industry for S. nudus. The high biomass of S. nudus in the Beibu Gulf is positively correlated with the sediment characteristics and water quality of the region. The production of peanut worm has improved to some extent through culturing; however, the nutrient value and ecological environment problems have been observed, which reflect the over exploitation of trace elements and the sediment. These problems will worsen unless they are resolved, and the release of organic materials, nitrogen and phosphorus during harvesting impacts the coastal environment. Moreover, genetic erosion is a potential risk for larvae in artificial breeding programs in tidal flats. Therefore, culturing and collecting methods should be improved and the wild resource conservation should be implemented to promote the sustainable development of the peanut worm.
基金supported in part by grants from the National Science Foundation(Nos.IOS-1444511and IOS-1339209)
文摘In the coming decades,plant agriculture must produce the food needed to sustain the world＇s burgeoning population.This challenge is made more daunting in light of a changing climate,scarcity of inputs such as water and fertilizer,and the need to grow more crops on increasingly marginal land.To achieve food security,we will need to fully exploit plant genetics to develop new crop varieties that produce higher yields of healthier food.
