南麂列岛海域原甲藻种群动态及其环境影响因子分析
DYNAMICS OF PROROCENTRUM POPULATION AND ITS RELATION WITH ENVIRONMENTAL FACTORS IN NANJI ISLANDS SEA AREA
-
摘要: 研究了2006年4月至2007年3月之间,南麂海域原甲藻种群的种类组成、季节动态、空间分布及其与水温、盐度、氮磷营养盐等环境因子的关系。原甲藻种类有三角棘原甲藻、东海原甲藻、海洋原甲藻和反曲原甲藻,前两者是南麂海域最为优势的种类,它们的分布季节集中在春季(4-6月),并先后于5月12日和5月25日形成赤潮。原甲藻细胞数量在表层水体中的数量显著高于底层,这与原甲藻种类能够自主运动,具有明显的昼夜垂直移动特性有关。三角棘原甲藻较高细胞数量相对集中出现在水温为18.5-19.5℃,盐度为29.58‰-30.95‰的水体中;东海原甲藻较高细胞数量则相对集中出现在水温为18.5-21.3℃,盐度为29.03‰-30.92‰的水体中。氮盐和磷酸盐浓度与原甲藻细胞数量之间呈负相关,磷营养盐浓度的高低对原甲藻种群动态影响更甚。对原甲藻细胞数量和环境因子之间进行相关性分析,发现原甲藻细胞数量与N:P值之间存在显著的正相关性,并与磷酸盐浓度之间存在显著的负相关性。原甲藻细胞具有较强储备氮磷营养物质能力的生物学特性使其能够在低营养条件下取得生长竞争的优势。
-
关键词:
- 原甲藻 /
- 种群动态 /
- 环境因子 /
- 南麂列岛海洋自然保护区
Abstract: Prorocentrum is a kind of very common dinoflagellate species in China coastal waters,and P.donghaiense Lu is the most key bloom causative species in East China Sea in recent years.Better understanding and analysis about the dynamics of Prorocentrum population in Nanji Islands Sea Area may support many useful data and provide helpful guides for the ecological studies and protection of Nanji Islands National Nature Reserve.A series of water samples were collected from four stations in Nanji Islands National Nature Reserve from April 2006 to March 2007.During this investigation period,monthly samples were gathered from July 2006 to March 2007,which including and corresponding the summer,autumn and winter periods.And in the spring,from April to June,2006,in which period the Prorocentrum blooms occurred frequently in recent several years,water samples were collected nearly every week.Both surface and bottom samples were got respectively.Species composition,seasonal variations and vertical distribution of Prorocentrum population as well as several chemical parameters were investigated.And the connections between Prorocentrum dynamics and several environmental factors,such as water temperature,salinity,nitrogen and phosphorus nutrition concentration,were analyzed.Totally,four Prorocentrum species have been found,P.triestinum Schiller,P.donghaiense Lu,P.micans Ehrenberg and P.sigmoides Bohm,in which,P.triestinum and P.donghaiense were the dominant species of phytoplankton,especially in spring and induced blooms in 12 May and 25 May respectively.During Prorocentrum blooms periods,Prorocentrum cell abundances distributing in the surface water levels were much higher than that in the bottom water levels.It was the result that Prorocentrum cells had the ability to move anywhere through their flagella swinging.So they could shift their vertical distribution based on different times in a day,moving to and distributing near the upper water levels in the daylight for better sunshine and removing to the bottom water levels during the dark.Peak abundances of P.triestinum occurred under the water temperature 18.5-19.5℃ and salinity 29.58‰-30.95‰.And the peak abundances of P.donghaiense occurred under the water temperature 18.5-21.3℃ and salinity 29.03‰-30.92‰.Higher Prorocentrum population cell abundances corresponded to both lower phosphorus and nitrogen nutrition concentrations.Using correlate analysis by SPSS,it is revealed that the dynamics of Prorocentrum population has obvious positive correlation with the ratio of DIN to PO4-P,and obvious negative correlation with the phosphorus concentrations.The phosphorus concentration is the key role influencing on the variation of Prorocentrum population.The nutritional storage ability of Prorocentrum cells is much higher than that of many diatom species.Maybe it is the actual reason why Prorocentrum cells could grow better and cause blooms under lower nutrition concentration in spring in Nanji Islands National Nature Reserve. -
-
[1] ZhouM J, ZhuM Y, Zhang J. S tatus of h arm fu l algal b loom s andrelated research act ivities in Ch ina[J]. Ch inese Bu lletin of Lif eSc iences, 2001, 13(2): 54-59[周名江, 朱明远, 张经. 中国赤潮的发生趋势和研究进展. 生命科学, 2001, 13(2): 54-59]
[2] Lu D D. F ive red tide species in genusP rorocentrum in clud ing thedescript ion ofP rorocen trum donghaiense Lu sp. nov. from the E astCh in a Sea[J]. Ch inese Jou rnal of O ceanology and Limnology,2001, 19(4): 337-344
[3] W ang JH. Th eHAB speciesP rorocentrum den ta tum and its characteristics in EastCh in a Sea[J]. Journal of Zh ejiangO cean Un iversity,2003, 22(2): 128-331[王金辉. 东海赤潮生物具齿原甲藻及其特征. 浙江海洋学院学报(自然科学版), 2003, 22(2): 128-331]
[4] Tang D L, D i B P, Wei G F, et al. Spatia,l seasonal and speciesvariat ion of h arm fu l algal b loom s in the Sou th Y ellow Sea andE ast Ch in a S ea[J].H yd robiology, 2006, 568(1): 245-253
[5] J iH H, Y e S F, Liu X, et al. Eco log ical characterist ics of phytoplanktonand causes for frequ ent occu rrence of din oflagellates redt ide in the N an ji Islands S ea A rea[J]. Advances inM arin e S cience,2008, 26(2): 234-242[纪焕红, 叶属峰, 刘星, 等. 南麂列岛海域浮游植物生态特征及甲藻赤潮频发原因. 海洋科学进展, 2008, 26(2): 234-242]
[6] JiH H, Ye S F, LiuX, et al. Th e species com position and d ivers-ity of zoop lank ton inN an ji Islands NationalN ature Reserve[J].B iod iversity S cience, 2006, 14(3): 206-215[纪焕红, 叶属峰,刘星, 等. 南麂列岛海洋自然保护区浮游动物的物种组成及其多样性. 生物多样性, 2006, 14(3): 206-215]
[7] Zhang X H, Zhou Y, Long H, et al. In vestigation on zoop lanktonin Nan jiM arine ProtectedA rea[J]. Ch ine se Journal of Z oology,2006, 41(4): 83-86[张晓辉, 周燕, 龙华, 等. 南麂列岛海洋保护区浮游动物调查. 动物学杂志, 2006, 41(4): 83-86]
[8] G ao A G, Zeng J N, Chen Q Z, et al. T ime and space d istribut ionofM olluscas of intertidal zone inN an jiA rch ipalegoMarin eNatureReserve[J]. A cta Oceanolog ica S in ica, 2007, 29(2): 105-311[高爱根, 曾江宁, 陈全震, 等. 南麂列岛海洋自然保护区潮间带贝类资源时空分布. 海洋学报, 2007, 29(2): 105-311]
[9] Y aoW M, Lu Y B. Red t ide and red t ide p lankton in the cen terand sou th coastal area of Zhejiang[J]. Journal of W enzh ouN ormalC ollege(N aturalS cien ce), 2005, 26(5): 59-62[姚伟民,卢益炳. 浙江中、南海域的赤潮和赤潮生物. 温州师范学院学报(自然科学版), 2005, 26(5): 59-62]
[10] G rasshoffK, K rem ling K, Ehrhard tM. M ethod s ofS eaw ater Analysis(Th ird E dit ion)[M]. W einhein: W ILEY-VCH Verlag GmbH,1999, 203-223.
[11] Zh ang C S, W ang J T, Zhu D D, e t al. The prelim inary an alysis ofnu trien ts in h arm fu l algal b loom s in the East China Sea in thesp ring and summ er of 2005[J]. Ac ta Oceanolog ica S in ica, 2008,30(2): 153-359[张传松, 王江涛, 朱德弟, 等. 2005 年春夏季东海赤潮过程中营养盐作用初探. 海洋学报, 2008, 30(2):153-359]
[12] LiD J, Cao Y, Zhang J. Con tinuous observat ion of ch lorophylLinP rorocen trum triestinum of th e Chang jiang(Yangtze R iver)E stuaryin the red t ide dying t im e[J]. Ch ina Env ironm en tal Sc ience,2002, 22(5): 400-403[李道季, 曹勇, 张经. 长江口尖叶原甲藻赤潮消亡期叶绿素连续观测. 中国环境科学, 2002, 22(5): 400-403]
[13] Chen H L, L?S H, Zhang C S, et al. A su rvey on the red tide ofP rorocen trum d onghaiense in East Ch ina S ea, 2004[J]. EcologicS cien ce, 2006, 25(3): 226-230[陈翰林, 吕颂辉, 张传松, 等.2004年东海原甲藻赤潮爆发的现场调查和分析. 生态科学,2006, 25(3): 226-230]
[14] Wang JH, Hu ang X Q. Eco log ical characterist ics ofProrocentrumd en ta tum and th e cause ofharm fu l algalb loom form ation in Ch inaSea[J]. Chinese Jou rnal of Applied E cology, 2003, 14(7):1065-3069[王金辉, 黄秀清. 具齿原甲藻的生态特征及赤潮成因浅析. 应用生态学报, 2003, 14(7): 1065-3069]
[15] L?SH, LiY. Nutritional storage ab ility of four harm fu l algal fromth e East Ch ina Sea[J]. Th eCh inese Journal of P rocessE ng ineering,2006, 6(3): 439-444[吕颂辉, 李英. 我国东海4 种赤潮藻的细胞氮磷营养储存能力对比. 过程工程学报, 2006, 6(3): 439-444]
[16] Anderson T, SchartauA K L, Paasche E. Quan tifying external andinternal n itrogen and phosphorus pools as w el l as n itrogen andphosphoru s supp lied through rem in eralization, in coastal m arinep lank ton by m eans of a d ilu tion techn ique[J].M arin eE colog icalP rog ress Series, 1991, 69: 67-80
[17] K ilham P, H ecky R E. Com parative ecology of m arin e and freshwater phytop lank ton[J]. Lim nology and Oceanog raphy, 1988,33: 776-795
[18] Dortsch Q, C layton J JR, Thoresen S S. Sp ecies d ifferences in accumulat ion of nitrogen pools in phytop lank ton[J].M arine B iology,1984, 81: 237-250
[19] Thom pson P A, Oh H M, Rhee G Y. S torage of ph osphoru s in n-itrogen-fix ing Anabaena f los-aqua e(Cyanophyceae)[J]. Journalof Phycology, 1994, 30: 267-273
[20] H ou J L, Zhang C S, Sh iX Y, et al. E ffect of phosphate in tw otyp icalHAB species in E astChina Sea by m esocosm experim ents[J]. Periodical of Ocean University of Ch ina, 2006, 36(Sup.):163-369[侯继灵, 张传松, 石晓勇, 等. 磷酸盐对两种东海典型赤潮藻影响的围隔实验. 中国海洋大学学报, 2006, 36(Sup.): 163-369]
[21] Zhang C L, Shi X Y, Han X R, et al. M esocosm experim en ts of theeffects of u trien ts on th e growth of dom inan tHAB species in theE ast Ch in a Sea[J]. M arine F isheries R esearch, 2006, 27(4):29-35[张春雷, 石晓勇, 韩秀荣, 等. 营养盐对东海赤潮优势藻种生长影响的船基围隔实验. 海洋水产研究, 2006, 27(4):29-35]
[22] LiY B, H an X R, Hu Y C, et al. T est on effects of nu trien ts ongrowth of phytoplankton in E ast Ch ina Sea in situ[J]. M arin eE nvironm en talS cience, 2008, 27(2): 113-317[李雁宾, 韩秀荣, 胡跃诚, 等. 营养盐对东海浮游植物生长影响的现场培养实验. 海洋环境科学, 2008, 27(2): 113-317]
[23] Sh iY J, H uH H, M a R Y, et al. N itrogen and phosphorus ab sorption and growth characterist ics of A lexand rium tam aren se[J].Chinese Journal of Applied E cology, 2003, 14(7)-3143-3146[石岩峻, 胡晗华, 马润宇, 等. 塔玛亚历山大藻对氮和磷的吸收及其生长特性. 应用生态学报, 2003, 14(7): 1143-3146]
[24] J iang T J, Xu Y X. Study on the growth ofA lexand rium tam arenseB alech[J]. ActaHydrobiolog ica S in ica, 2006, 30(4): 472-476[江天久, 徐轶肖. 塔玛亚历山大藻的生长研究. 水生生物学报, 2006, 30(4): 472-476]
计量
- 文章访问数: 865
- HTML全文浏览量: 0
- PDF下载量: 562
下载: