Chinese Journal of Applied Ecology ›› 1994, Vol. 5 ›› Issue (4): 396-402.
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Tang Qisheng, Qiu Xianyin, Wangjun, Guo Xuewu, Yang Aiguo
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Abstract: In this paper, a study of resource enhancement of one oceanic shellfish, Scapharca (Anadara) broughlonii is reported, which includes artificial seed-breeding, mid-culture of young arkshell, bottom releasing as well as enhancement biology etc.. The results show that: 1)a complete industrialization of artificial seed-breeding can be realized by means of drying in the shadow, water running, raising water temperature, stimulating with sperm and bleaching agent etc., 2) the inland bays and prawn culture ponds with abundant forage and no rough waves are the suitable mid-culture waters for young arkshell. The main growth period of larvae is from July to November. Age 0 arkshell will grow better at the temperature little higher than the upper limit of the optimum temperature for adult, but the overwintered young arkshell cannot survive when the water temperaure is over 26℃; 3) the key point of enhancement releasing is to choose few predators and stable bottom area. The shell length of 2.0-2.5cm is the ideal releasing size, and the recapture rate one year after releasing is more than 50%. The releasing arkshell can reach the commercial size when their shell length grows to 5 cm. 1.5 years after releasing, and the enhancement effect is remarkable.
Key words: Scapharca broughtonii, Resource enhancement, Industrial seed-breeding, Mid-culture, Bottom releasing
Tang Qisheng, Qiu Xianyin, Wangjun, Guo Xuewu, Yang Aiguo . Resource enhancement of arkshell(Scapharca(Anadara) broughtonii) in Shandong offshore waters[J]. Chinese Journal of Applied Ecology, 1994, 5(4): 396-402.
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https://www.cjae.net/EN/Y1994/V5/I4/396