Biomass and estimated production rates of metazoan zooplankton community in a tropical coral reef of Malaysia
Biomass and estimated production rates of metazoan zooplankton community in a tropical coral reef of Malaysia
复制标题
马来西亚热带珊瑚礁后生浮游动物群落的生物量和估计生产率
DOI：
10.1111/maec.12062
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Tatsuki Toda
中科院分区：
文献类型：
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作者：
Ryota Nakajima;Teruaki Yoshida;Bin Haji Ross Othman;Tatsuki Toda
定量研究浮游动物群落的组成、生物量和生产力对于了解珊瑚礁远洋生态系统的营养结构是至关重要的。本研究对马来西亚铁曼岛边缘珊瑚礁中的微型(35-100gμm)和网状(>；100gμm)后生浮游动物进行了调查。在2004年8月和10月以及2005年2月和6月在白天和夜间进行了采样。浮游动物总生物量(微型浮游+净浮游动物)的平均值为3.42±0.64 mg C·m−3，从10月的2.32±0.75 mg C·m−3到8月的3.26±1.77 mg C·m−3。净浮游动物的生物量比白天增加了131-264%，这是由于浮游动物和与珊瑚礁相关的浮游动物都加入了水柱。后生浮游动物群落的日平均生产量为1.80±0.57 mg C·m−3·day−1，但如果考虑到幼虫的家庭生产量，这一数字将增加到2.51±1.06 mg C·m−3·day−1。在总产率中，二产和三产分别为2.20±1.03和0.30±0.06 mg C·m−3·d−1。为了研究远洋生态系统的营养结构，我们估算了浮游动物的食物需求量。仅靠浮游植物可能不能满足研究区次生生产力的需求，不足之处可由碎屑等其他有机来源补充。
Quantitative research on composition, biomass and production rates of zooplankton community is crucial to understand the trophic structure in coral reef pelagic ecosystems. In the present study, micro‐ (35–100 μm) and net‐ (>100 μm) metazooplankton were investigated in a fringing coral reef at Tioman Island of Malaysia. Sampling was done during the day and night in August and October 2004, and February and June 2005. The mean biomass of total metazooplankton (i.e. micro + net) was 3.42 ± 0.64 mg C·m−3, ranging from 2.32 ± 0.75 mg C·m−3in October to 3.26 ± 1.77 mg C·m−3in August. The net‐zooplankton biomass exhibited a nocturnal increase from daytime at 131–264% due to the addition of both pelagic and reef‐associated zooplankton into the water column. The estimated daily production rates of the total metazooplankton community were on average 1.80 ± 0.57 mg C·m−3·day−1, but this increased to 2.51 ± 1.06 mg C·m−3·day−1if house production of larvaceans was taken into account. Of the total production rate, the secondary and tertiary production rates were 2.20 ± 1.03 and 0.30 ± 0.06 mg C·m−3·day−1, respectively. We estimated the food requirements of zooplankton in order to examine the trophic structure of the pelagic ecosystem. The secondary production may not be satisfied by phytoplankton alone in the study area and the shortfall may be supplied by other organic sources such as detritus.