Long-term growth rates of four Mediterranean cold-water coral species maintained in aquaria
Long-term growth rates of four Mediterranean cold-water coral species maintained in aquaria
复制标题
水族馆中维持四种地中海冷水珊瑚物种的长期增长率
DOI：
--
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
J. Gili
中科院分区：
文献类型：
--
作者：
C. Orejas;C. Ferrier‐Pagès;S. Reynaud;A. Gori;E. Béraud;G. Tsounis;D. Allemand;J. Gili
在受控条件下（12°C黑暗中，每周喂食5次），通过浮重技术测量了冷水珊瑚（CWC）的生长率，包括Madelia oculata、Lophelia pertusa、Desmophyllum dianthus和Dendrophyllia cornigera，时间超过8个月。此外，在M中测量线性生长速率。oculata和L. pertusa分别为2年和1年。体重测量显示，M的生长速率（以每天生长百分比（平均值± SD）表示）为0.11 ± 0.04。oculata为0.02 ± 0.01; pertusa，D.石竹为0.0 4 ± 0.0 2% d-1; cornigera。生长在M。oculata显著高于其他3种CWC物种（p < 0.0001）。支原体oculata和L. pertusa，也记录到线性生长。M的这些值（平均值± SD）分别为0.014 ± 0.007和0.024 ± 0.018 mm d-1。oculata和L. pertusa，分别。这是首次在相同的水流、温度、盐度和食物供给条件下比较4种不同的CWC鱼类的生长速率。这些珊瑚有不同的增长率，无论是在总重量增加和线性增长，这些增长率可以与种间生理差异。生长速率数据对于了解CWC的种群动态以及这些群落在干扰后的恢复能力是必不可少的。
Growth rates of the cold-water corals (CWC) Madrepora oculata, Lophelia pertusa, Desmophyllum dianthus and Dendrophyllia cornigera were measured over 8 mo under controlled conditions (12°C in the dark, fed 5 times a week) by means of the buoyant weight technique. Addi- tionally, linear growth rates were measured in M. oculata and L. pertusa for 2 and 1 yr, respectively. The weight measurements revealed growth rates, expressed as percent growth per day (mean ± SD), of 0.11 ± 0.04 for M. oculata, 0.02 ± 0.01 for L. pertusa, 0.06 ± 0.03 for D. dianthus and 0.04 ± 0.02 % d -1 for D. cornigera. Growth in M. oculata was significantly higher (p < 0.0001) than in the other 3 CWC species. For M. oculata and L. pertusa, also linear growth was recorded. These values (mean ± SD) were 0.014 ± 0.007 and 0.024 ± 0.018 mm d -1 for M. oculata and L. pertusa, respectively. This is the first study that compares the growth rates of 4 different CWC species under the same experimen- tal conditions of water flow, temperature, salinity and food supply. These corals have different growth rates, both in terms of total weight increase and linear increase, and these growth rates can be related to interspecific physiological differences. Data on growth rates are essential to understand the popu- lation dynamics of CWC as well as the recovery capacity of these communities after disturbance.