海洋通报：英文版
海洋通報：英文版
해양통보：영문판
Marina Science Bulletin
2012年
1期
68-79
,共12页
林更铭%杨清良%林维含%王雨
林更銘%楊清良%林維含%王雨
림경명%양청량%림유함%왕우
浮游甲藻：分布特征%变化趋势%台湾海峡
浮遊甲藻：分佈特徵%變化趨勢%檯灣海峽
부유갑조：분포특정%변화추세%태만해협
planktonic dinoflagellate%distribution characteristics%variation trendTaiwan Strait
根据2006-2007年“国家908”专项台湾海峡4个航次调查，分析该海域浮游甲藻的种类组成、群落结构和时空分布特征。共鉴定甲藻18属131种，其中高温高盐种为主体，占总种数的72．52％，其次为广温广盐种，占总种数的25．19％，近岸种仪占2．29％。夏季甲藻的种类最丰富，而春季甲藻的丰度最高。平均丰度为404．96×10^2cells／m3，其平面分布呈现从近岸向外海、从北向南递增的趋势。与1984-1985年的调查结果相比较，甲藻丰度的平面分布格局和季节变化趋势没有明显变化，但丰度增加3．01倍。从季节变化看，冷季甲藻丰度增加较为显著；从平面分布看，台湾海峡北部增加较多。此外，该海域甲藻群落结构也发生变化，种类多样性指数和均匀度上升，其丰度占浮游植物总丰度的比例由0．55％上升到1．02％。
根據2006-2007年“國傢908”專項檯灣海峽4箇航次調查，分析該海域浮遊甲藻的種類組成、群落結構和時空分佈特徵。共鑒定甲藻18屬131種，其中高溫高鹽種為主體，佔總種數的72．52％，其次為廣溫廣鹽種，佔總種數的25．19％，近岸種儀佔2．29％。夏季甲藻的種類最豐富，而春季甲藻的豐度最高。平均豐度為404．96×10^2cells／m3，其平麵分佈呈現從近岸嚮外海、從北嚮南遞增的趨勢。與1984-1985年的調查結果相比較，甲藻豐度的平麵分佈格跼和季節變化趨勢沒有明顯變化，但豐度增加3．01倍。從季節變化看，冷季甲藻豐度增加較為顯著；從平麵分佈看，檯灣海峽北部增加較多。此外，該海域甲藻群落結構也髮生變化，種類多樣性指數和均勻度上升，其豐度佔浮遊植物總豐度的比例由0．55％上升到1．02％。
근거2006-2007년“국가908”전항태만해협4개항차조사，분석해해역부유갑조적충류조성、군락결구화시공분포특정。공감정갑조18속131충，기중고온고염충위주체，점총충수적72．52％，기차위엄온엄염충，점총충수적25．19％，근안충의점2．29％。하계갑조적충류최봉부，이춘계갑조적봉도최고。평균봉도위404．96×10^2cells／m3，기평면분포정현종근안향외해、종북향남체증적추세。여1984-1985년적조사결과상비교，갑조봉도적평면분포격국화계절변화추세몰유명현변화，단봉도증가3．01배。종계절변화간，랭계갑조봉도증가교위현저；종평면분포간，태만해협북부증가교다。차외，해해역갑조군락결구야발생변화，충류다양성지수화균균도상승，기봉도점부유식물총봉도적비례유0．55％상승도1．02％。
Based on 4 cruise surveys from July 2006 to October 2007 in the Taiwan Strait, the species composition, community structure and spatio-temporal distribution of dinoflagellate were studied. A total of 131 dinoflagellates belonging to 18 genera were identified. The population was dominated by hyperthermal and hyperhaline species accounting for 72.52% of the total species. Eurythermal and euryhaline species were the second most common one accounting for 25.19% of the total species. It was only 2.29% for neritic species. The maximum species number occurred in summer, while the maximum cell density appeared in spring. The average dinoflagellate cell density was 404.96x104 cells/m3. It showed that the dinof]agellate cell density increased from the nearshore waters to the open sea and from the north to the south. Compared with the results during 1984-1985, the horizontal distribution pattern and seaeonal variation of the dinofiagellate have not changed significantly, but the dinoflagellate cell density increased by 3.01 times. Further analysis of the dinoflagellate abundance variations both in the spatial and temporal aspects, indicated that the abundance of dinoflagellate increased more significantly in cold seasons, and there was a larger increase in the north of the Taiwan Strait. Besides, the dinoflagellate community structure changed notably. It showed that the diversity and evenness index were relatively high, and the proportion of dinoflageliate cell density to the total phytoplankton increased.
