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Production and sinking rates for bio-deposits of abalone (Haliotis discus hannai Ino)

文献类型： 外文期刊

作者： Zhang, Jihong 1 ; Ren, Lihua 2 ; Wu, Wenguang 2 ; Gao, Yaping 2 ; Du, Meirong 2 ; Fang, Jianguang 3 ;

作者机构： 1.Chinese Acad Fishery Sci, Dept Mariculture Ecol, Qingdao 266071, Peoples R China

2.Chinese Acad Fishery Sci, Dept Mariculture Ecol, Qingdao 266071, Peoples R China; Chinese Acad Fishery Sci, Carrying Capac Lab, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China

3.Chinese Acad Fishery Sci, Dept Mariculture Ecol, Qingdao 266071, Peoples R China; Chinese Acad Fishery Sci, Carrying Capac Lab, Yellow Sea Fisheries Res Inst, Qingdao 266071,

关键词： abalone Haliotis discus hannai Ino;bio-deposit;sinking velocity;dispersal characteristics;Sungo Bay

期刊名称：AQUACULTURE RESEARCH （ 影响因子：2.082； 五年影响因子：2.415 ）

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收录情况： SCI

摘要： Particle size distribution, organic content and the sinking velocity of bio-deposits of abalone Haliotis discus hannai Ino were evaluated. The abalone was divided into three size classes according to shell length: Group B: 68.8 +/- 2.8 mm, group M: 56.1 perpendicular to 2.3 mm and group S: 42.4 +/- 2.8 mm. The faecal pellets had an amorphous shape, with a cross-sectional area ranging from 0.01 to 2.64 mm 2. The mean cross-sectional area varied among the size classes: 0.59 (B), 0.21 (M) and 0.12 (S) mm 2. The bio-deposit organic content was similar among the groups (B: 18.3 +/- 1.1%; M: 19.9 +/- 0.9%; S: 19.3 +/- 1.0%). Sinking velocity ranged from 0.5 to 2.3 cm s(-1). Larger abalone tended to have larger and thus faster-sinking faecal pellets. The median sinking velocity for groups B, M and S was 0.9, 0.5 and 0.7 cm s(-1) respectively. The mean daily production rates for groups S, M and B were 2.8 +/- 1.2, 3.4 +/- 1.3 and 4.3 +/- 1.8 g ind.(-1) respectively. Bio-deposit production rate estimated to be between 134.4 and 206.4 mg m(-2) day(-1) in the bay. Our results suggest that the pellet size was within the appropriate size range for filter-feeding bivalves.

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[1]Assessment of the local environmental impact of intensive marine shellfish and seaweed farming-Application of the MOM system in the Sungo Bay, China. Zhang, Jihong,Fang, Jianguang,Wang, Wei,Jiang, Zengjie,Zhang, Jihong,Fang, Jianguang,Wang, Wei,Jiang, Zengjie,Hansen, Pia Kupka.

[2]Effects of freshwater input and mariculture (bivalves and macroalgae) on spatial distribution of nanoflagellates in Sungo Bay, China. Lu, Jiachang,Wu, Linnan,Huang, Lingfeng,Luo, Yuanrong,Xiao, Tian,Jiang, Zengjie.

[3]Study on the potential of suspended longline mariculture of the scallop Chlamys farreri in offshore areas. Zhang, Jihong. 2011

[4]Growth and loss of mariculture kelp Saccharina japonica in Sungo Bay, China. Zhang, Jihong,Fang, Jianguang,Wang, Wei,Du, Meirong,Gao, Yaping,Zhang, Mingliang,Zhang, Jihong,Fang, Jianguang,Wang, Wei,Du, Meirong,Gao, Yaping,Zhang, Mingliang.

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