CAJ | 학술논문

珊瑚与虫黄藻的共生是珊瑚礁生态系统最基本的生态特征,虫黄藻光合作用效率直接决定着珊瑚的健康状况。本研究对海南三亚鹿回头珊瑚礁礁坪上5种典型珊瑚(澄黄滨珊瑚Porites lutea、丛生盔形珊瑚Galaxea fascicularis、标准蜂巢珊瑚Favia speciosa、多弯角蜂巢珊瑚Goniastrea favulus和伞房鹿角珊瑚Acropora corymbosa)共生藻的实际光量子产量ΦPSⅡ进行了连续5日的现场监测,并同时监测了该海域的7种环境参数(温度、盐度、溶解氧、pH、海水中二氧化碳分压pCO2、辐射和潮位),旨在探索鹿回头海域珊瑚共生虫黄藻光合作用的日变化规律及其调控因素。结果表明,珊瑚共生虫黄藻光合作用效率和各环境参数都存在明显的日变化,但共生藻光合作用效率主要受光合有效辐射强度(photosynthetic active radiation, PAR)所调控,其次是温度和潮位变化。澄黄滨珊瑚的共生藻光合作用最易受到环境因素的影响。
산호여충황조적공생시산호초생태계통최기본적생태특정,충황조광합작용효솔직접결정착산호적건강상황。본연구대해남삼아록회두산호초초평상5충전형산호(징황빈산호Porites lutea、총생회형산호Galaxea fascicularis、표준봉소산호Favia speciosa、다만각봉소산호Goniastrea favulus화산방록각산호Acropora corymbosa)공생조적실제광양자산량ΦPSⅡ진행료련속5일적현장감측,병동시감측료해해역적7충배경삼수(온도、염도、용해양、pH、해수중이양화탄분압pCO2、복사화조위),지재탐색록회두해역산호공생충황조광합작용적일변화규률급기조공인소。결과표명,산호공생충황조광합작용효솔화각배경삼수도존재명현적일변화,단공생조광합작용효솔주요수광합유효복사강도(photosynthetic active radiation, PAR)소조공,기차시온도화조위변화。징황빈산호적공생조광합작용최역수도배경인소적영향。
Symbiosis of coral and zooxanthellae is the primary ecological characteristic of coral reef ecosystem, and photosynthetic efficiency of zooxanthellae decides the health of symbiont. The present study monitored the photochemical efficiency of zooxanthellae within tissues of five typical species of scleractinian corals, Porites Lutea, Galaxea fascicularis, Favia speciosa, Goniastrea favulus and Acropora corymbosa, in a Sanya fringing reef for five consecutive days, and recorded the environmental parameters of the area. Aiming at exploring the potential diurnal change of photosynthetic efficiency, we analyzed the pivotal factors that impede the photosynthesis of symbiotic algae. The results suggested that photosynthetic active radiation (PAR) determines the diurnal variation of ΦPSⅡ, an indicator of actual photochemical efficiency. Temperature and tidal height also had prevalent influences on corals. In addition, Porites lutea showed the biggest amplitude of dailyΦPSⅡthan the other four species.