摘要
用解剖镜镜检的方法鉴定和分析了2001年2、5、8月,2002年5、8、11月以及2003年2月在胶州湾7个航次中浅海Ⅲ型网垂直拖网样品中的砂壳纤毛虫。结果表明,各个航次优势种(丰度)为:2001年2月,Tintinnopsis brasiliensis1500-23900个/m3;2001年5月,Codonellopsis mobilis80600-624000个/m3,Leprotintinnus neriticus920-13842个/m3,Fav-ella campanula184-2728个/m3,T.kofoidi0-368个/m3;2001年8月,Stenosemella sp.0-982个/m3,T.radix98-19114个/m3,L.neriticus0-5932个/m3,E.panamensis0-1318个/m3,T.gracilis0-317个/m3,L.nordqvisti O-158个/m3;2002年5月,C.mobilis22400-1567500个/m3,L.neriticus900-96300个/m3,C.parvicollis0-75600个/m3;2002年8月,E.panamensis0-2604个/m3,C.mobilis0-992个/m3,T.gracilis0-256个/m3,L.nordqvisti0-102个/m3;2002年11月,C.ostenfeldi0-13003个/m3,L.neriticus0-713个/m3,T.schotti0-316个/m3;2003年1月,砂壳纤毛虫丰度低干50个/m3。下列5种是新记录种:C.ostenfeldi,T.schotti,T.kofoidi,L.neriticus,Stenosemella sp.。
Abundance and spatial distribution of tintinnid ciliates in Jiaozhou Bay, Qingdao, north China, were studied in several cruises in the year 2001 through 2003. Tintinnids were collected by vertical towing using shallow sea type Ⅲ plankton net （open area 0.1 m^2, mesh size 76μm） onboard of R/V Kejiao H in February, May and August 2001, May, August, November 2002 and February 2003, separately. Tintinnid species were identified according to Yin （1952）, Nieet al （1947）, Wang et al （1932） and Yoo et al （1988）. Temperature varied significantly in four seasons in the area： 3.87-4.72℃ in February, 14.59-18.74℃ in May, 25.11-26.39℃ in August, and 10.31-15.58℃ in November. Different species of tintinnids dominated in different seasons. The dominant species occurred in these cruises were： in February 2001： Tintinnopsis brasiliensis （1500-23900 ind/m^3）; in May 2001： Codonellopsis mobilis （80600-624000 ind/m^3）, Leprotintinnus neriticus （920-13842 ind/m^3）, Favella campanula （184-2728 ind/m^3）, T. kofoidi （0-368 ind/m^3）; in August 2001： Stenosemella sp. （0-982 ind/m^3）, T. radix （98-19114 ind/m^3）, L. neriticus （0-5932 ind/m^3）, F panamensis （0-1318 ind/m^3）, T. gracilis （0-317 ind/m^3）, L. nordqvisti （0-158 ind/m^3）; in May 2002： C. mobilis （22400-1567500 ind/m^3）, L. neriticus （900-96300 ind/m^3）, C. parvicollis （0-75600ind/m^3）; in August 2002： F. panamensis （0-2604 ind/m3）, C. mobilis （0-992 ind/m^3）, T. gracilis （0-256 ind/m^3）, L. nordqvisti （0-102 ind/m^3）, and in November 2002： C. ostenfeldi （0-13003 ind/m^3）, L. neriticus （0-713 ind/m^3）, T. schotti （0-316 ind/m^3）. The abundance of tintinnids was below 50 ind/m^3 in February 2003.
Tintinnid assemblies in Mays of both 2001 and 2002 were featured by high abundance （maximum 1740000 ind/m^3）, and the dominant species were C. mobilis and L. neriticus. The largest number of species appeared in Augusts of both 2001 and 2003 with dominanting T. radix, F. panamensis, T. gracilis, L. nordqvisti. Five species （C. ostenfeldi, T. schotti, T. kofoidi, L. neriticus, Stenosemella sp.） were found to be new records in this area. Ecological data indicated that different spatial distribution patterns might be related to water exchange inside and outside of the bay. Chlorophyll a concentration was not the key factor influencing the occurrence of tintinnids.
出处
《海洋与湖沼》
CAS
CSCD
北大核心
2007年第5期468-475,共8页
Oceanologia Et Limnologia Sinica
基金
国家自然科学基金资助项目
40106017号
中国科学院知识创新工程重要方向资助项目
KZCX3-SW-214号。
关键词
砂壳纤毛虫
丰度
水平分布
胶州湾
Tintinnid ciliates, Abundance, Horizontal distribution, Jiaozhou Bay
