2种坛紫菜品系栽培生长参数及CNP固定效率比较
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摘要
以洞头海区养殖的"洞头本地菜"和"浙东1号"2种坛紫菜品系为研究材料,测定其不同收割期叶状体长度、干质量、CNP含量等参数,核算了S值、产量及CNP固定效率等指标。结果显示:随着收割期延长,2种坛紫菜品系的叶状体长度逐渐下降,单条叶状体干质量与S值逐渐增加,产量先升后降,CNP固定效率整体呈上升趋势。一水至四水"洞头本地菜"的单条叶状体长度、干质量均高于"浙东1号",二水至四水"洞头本地菜"的产量、CNP固定效率均高于"浙东1号",2种坛紫菜品系S值之间无明显差异。一水至四水"洞头本地菜"CNP总固定效率分别为900.74 kg/hm~2、110.16 kg/hm~2和14.16 kg/hm~2,"浙东1号"CNP总固定效率分别为683.34 kg/hm~2、84.3 kg/hm~2和10.75 kg/hm~2。上述指标在不同收割期均呈极显著差异(P<0.01),在不同品系间均无显著差异(P>0.05),研究结果有助于进一步认知坛紫菜养殖的生长性状与生态效益。
Two strains of Pyropia haitanensis("Native Dongtou" and "Eastern Zhejiang NO.1") were selected as research materials in Dongtou aquaculture district. The thallus length, dry weight, CNP content were determined at different harvest stages, as well as the S value, yield, and sequestration efficiency of carbon, nitrogen and phosphorus were calculated. The results showed that with the extension of harvest time, the thallus length of two strains of Porphyra haitanensis decreased gradually, the dry weight and S value of single thallus increased gradually, the yield increased first and then decreased, and the sequestration efficiency of CNP increased as a whole. The length and dry weight of single thallus of "Native Dongtou" from the first harvest to the fourth harvest were higher than those of "Eastern Zhejiang No.1". The yield and CNP sequestration efficiency of "Native Dongtou" from the second harvest to the fourth harvest were higher than those of "Eastern Zhejiang No.1". There was no significant difference in S value between the two strains of Porphyra haitanensis. The total sequestration efficiency of CNP for "Native Dongtous" from the first harvest to the fourth harvest was 900.74 kg/hm~2, 110.16 kg/hm~2, 14.16 kg/hm~2,respectively. The total sequestration efficiency of CNP for "Eastern Zhejiang NO.1" was 683.34 kg/hm~2, 84.3 kg/hm~2 and 10.75 kg/hm~2, respectively. The above indexes showed extremely significant difference among different harvest stages(P<0.01), but no significant difference between different strains(P>0.05). The results are helpful to further understand the growth characteristics and ecological benefits of Porphyra haitanensis culture.
Two strains of Pyropia haitanensis("Native Dongtou" and "Eastern Zhejiang NO.1") were selected as research materials in Dongtou aquaculture district. The thallus length, dry weight, CNP content were determined at different harvest stages, as well as the S value, yield, and sequestration efficiency of carbon, nitrogen and phosphorus were calculated. The results showed that with the extension of harvest time, the thallus length of two strains of Porphyra haitanensis decreased gradually, the dry weight and S value of single thallus increased gradually, the yield increased first and then decreased, and the sequestration efficiency of CNP increased as a whole. The length and dry weight of single thallus of "Native Dongtou" from the first harvest to the fourth harvest were higher than those of "Eastern Zhejiang No.1". The yield and CNP sequestration efficiency of "Native Dongtou" from the second harvest to the fourth harvest were higher than those of "Eastern Zhejiang No.1". There was no significant difference in S value between the two strains of Porphyra haitanensis. The total sequestration efficiency of CNP for "Native Dongtous" from the first harvest to the fourth harvest was 900.74 kg/hm~2, 110.16 kg/hm~2, 14.16 kg/hm~2,respectively. The total sequestration efficiency of CNP for "Eastern Zhejiang NO.1" was 683.34 kg/hm~2, 84.3 kg/hm~2 and 10.75 kg/hm~2, respectively. The above indexes showed extremely significant difference among different harvest stages(P<0.01), but no significant difference between different strains(P>0.05). The results are helpful to further understand the growth characteristics and ecological benefits of Porphyra haitanensis culture.
引文
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[19] 蔡继晗,陈高峰,吕永林,等.申福二号等7个坛紫菜养殖群体的生长性能分析[J].水产养殖,2011,32(8):1-3.CAI J H,CHEN G F,LV Y L,et al.Growth performance analysis of seven Porphyra haitanensis breeding populations such as Shenfu No.2[J].Aquaculture,2011,32(8):1-3.
[2] 李纯厚,齐占会,黄洪辉,等.海洋碳汇研究进展及南海碳汇渔业发展方向探讨[J].南方水产,2010,6(6):81-86.LI C H,QI Z H,HUANG H H,et al.Review on marine carbon sink and development of carbon sink fisheries in South China Sea[J].South China Fisheries Science,2010,6(6):81-86.
[3] 高学文.CDM机制下的碳汇渔业发展思考[J].中国城市经济,2011(8):41,43.GAO X W.Thoughts on the development of carbon sink fisheries under the CDM mechanism[J].China Urban Economy,2011(8):41,43.
[4] 应苗苗,施文正,刘恩玲.不同收割期坛紫菜挥发性成分分析[J].食品科学,2010,31(22):421-426.YING M M,SHI W Z,LIU E L.Analysis of volatile components in laver harvested in different time points[J].Food Science,2010,31(22):421-426.
[5] 李钧,谢双如.坛紫菜藻场生态系统修复技术[J].齐鲁渔业,2012,29(10):37-38.LI J,XIE S R.Ecosystem restoration technology of Porphyra haitanensis farm[J].Shandong Fisheries,2012,29(10):37-38.
[6] 翁琳,陈昌生,纪德华,等.冷藏和恢复培养温度对坛紫菜存活生长的影响[J].集美大学学报(自然科学版),2007,12(2):97-102.WENG L,CHEN C S,JI D H,et al.Effects of cold preservation and recuperative temperature on the survival and growth of Porphyra haitanensis[J].Journal of Jimei University (Natural Science),2007,12(2):97-102.
[7] 丁柳丽,刘露,邹定辉.不同温度与CO2浓度对坛紫菜生长和光合作用温度反应特性的影响[J].生态科学,2013,32(2):151-157.DING L L,LIU L,ZOU D H.Effects of different temperature and CO2 concentrations on the growth and photosynthetic response to temperature in Porphyra haitanensis[J].Ecological Science,2013,32(2):151-157.
[8] 陈昌生,梁艳,徐燕,等.坛紫菜薄叶新品系选育及经济性状的比较[J].渔业科学进展,2009,30(2):100-105.CHEN C S,LIANG Y,XU Y,et al.Selective breeding and comparison of economic traits of the new thin-thallus strain Porphyra haitanensis[J].Progress in Fishery Sciences,2009,30(2):100-105.
[9] 宋金明,李学刚,袁华茂,等.中国近海生物固碳强度与潜力[J].生态学报,2008,28(2):551-558.SONG J M,LI X G,YUAN H M,et al.Carbon fixed by phytoplankton and cultured algae in China coastal seas[J].Acta Ecologica Sinica,2008,28(2):551-558.
[10] 宋金明.中国近海生态系统碳循环与生物固碳[J].中国水产科学,2011,18(3):703-711.SONG J M.Carbon cycling processes and carbon fixed by organisms in China marginal seas[J].Journal of Fishery Sciences of China,2011,18(3):703-711.
[11] 权伟,应苗苗,康华靖,等.中国近海海藻养殖及碳汇强度估算[J].水产学报,2014,38(4):510-515.QUAN W,YING M M,KANG H J,et al.Marine algae culture and the estimation of carbon sink capacity in the coastal areas of China[J].Journal of Fisheries of China,2014,38(4):510-515.
[12] 严立文,黄海军,陈纪涛,等.我国近海藻类养殖的碳汇强度估算[J].海洋科学进展,2011,29(4):537-545.YAN L W,HUANG H J,CHEN J T,et al.Estimation of carbon sink capacity of algal mariculture in the coastal areas of China[J].Advances in Marine Science,2011,29(4):537-545.
[13] 岳冬冬.海带养殖结构变动与海藻养殖碳汇量核算的情景分析[J].福建农业学报,2012,27(4):432-436.YUE D D.Correlation between kelp aquaculture and carbon sinks[J].Fujian Journal of Agricultural Sciences,2012,27(4):432-436.
[14] 陆勤勤,周伟,邓银银.条斑紫菜栽培的经济效益与生态效益概述[J].中国水产,2016(1):53-54.LU Q Q,ZHOU W,DENG Y Y.Summary of economic benefits and ecological benefits of Porphyra yezoensis cultivation[J].China Fisheries,2016(1):53-54.
[15] NALDI M,VIAROLI P.Nitrate uptake and storage in the seaweed Ulva rigida C.Agardh in relation to nitrate availability and thallus nitrate content in a eutrophic coastal lagoon (Sacca di Goro,Po River Delta,Italy)[J].Journal of Experimental Marine Biology and Ecology,2002,269(1):65-83.
[16] NEORI A,KROM M D,ELLNER S P,et al.Seaweed biofilters as regulators of water quality in integrated fish-seaweed culture units[J].Aquaculture,1996,141(3/4):183-199.
[17] HAGLUND K,PEDERSéN M.Outdoor pond cultivation of the subtropical marine red alga Gracilaria tenuistipitata in brackish water in Sweden.Growth,nutrient uptake,co-cultivation with rainbow trout and epiphyte control[J].Journal of Applied Phycology,1993,5(3):271-284.
[18] 柴召阳,何培民.我国海洋富营养化趋势与生态修复策略[J].科学,2013,65(4):48-52.CAI Z Y,HE P M.Trends of marine eutrophication in China and ecological restoration strategy[J].Science,2013,65(4):48-52.
[19] 蔡继晗,陈高峰,吕永林,等.申福二号等7个坛紫菜养殖群体的生长性能分析[J].水产养殖,2011,32(8):1-3.CAI J H,CHEN G F,LV Y L,et al.Growth performance analysis of seven Porphyra haitanensis breeding populations such as Shenfu No.2[J].Aquaculture,2011,32(8):1-3.