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Drupella outbreak in a large coral community off the coast of Cape Toi, Miyazaki, Japan 日本宫崎角Toi海岸外的大型珊瑚群落爆发核桃病
Pub Date : 1900-01-01 DOI: 10.3755/GALAXEA.19.1_31
T. Koido, Yutaro Oku, M. Fukuda, A. Nakano, H. Fukami
Off the coast of Cape Toi, Miyazaki, Japan (31°21′N 131°19′E), thousands of colonies of the tabular coral species Acropora hyacinthus densely inhabits an area of approximately 300×300 m at depths of 3-5 m (Fig. 1A). This coral community was discovered in March 2012 by one of the co-authors (M. Fukuda) and is believed to be one of the largest communities of A. hyacinthus off the coast of Kyushu. In southern Miyazaki, reef-building corals had been found in abundance before the outbreak of the coral-eating snails Drupella fragum in 1987, which drastically diminished the coral population in this region (Takayama and Shirasaki 1990; Uchida 1994). Therefore, rediscovery of the coral community in southern Miyazaki Drupella outbreak in a large coral community off the coast of Cape Toi, Miyazaki, Japan
在日本宫崎的Toi角海岸外(31°21′n 131°19′e),在3-5米深的大约300×300米的区域,密集地栖息着数以千计的板状珊瑚群Acropora hyacinthus(图1A)。这个珊瑚群落是2012年3月由作者之一(福田先生)发现的,被认为是九州海岸最大的风信子珊瑚群落之一。在宫崎南部,在1987年吃珊瑚的蜗牛(Drupella fragum)爆发之前,已经发现了大量的造礁珊瑚,这大大减少了该地区的珊瑚数量(Takayama和Shirasaki 1990;田1994)。因此,在日本宫崎角Toi海岸外的一个大型珊瑚群落中重新发现了南部宫崎Drupella珊瑚群落的爆发
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引用次数: 4
A carbonate platform associated with shallow cold methane seeps in Golfo Dulce, Pacific Costa Rica 一个碳酸盐岩台地与浅层冷甲烷渗漏有关,在太平洋哥斯达黎加的多尔塞湾
Pub Date : 1900-01-01 DOI: 10.3755/GALAXEA.17.13
C. Wild, T. Rixen, Celeste Sánchez-Noguera, A. Merico, C. Jiménez, J. Cortés, M. Naumann
formation. These observations and preliminary analytical findings may thus provide first indication of a
形成。因此,这些观察和初步分析结果可能提供了a的初步迹象
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引用次数: 4
A coral spawning calendar for Sesoko Station, Okinawa, Japan 日本冲绳雪子站的珊瑚产卵日历
Pub Date : 1900-01-01 DOI: 10.3755/galaxea.g2021_s10o
A. Baird, A. Edwards, J. Guest, S. Harii, M. Hatta, Liam Lachs, Hanaka Mera, F. Sinniger, D. Abrego, Or Ben-Zvi, O. Bronstein, P. Cabaitan, V. Cumbo, G. Eyal, L. Eyal-Shaham, Bar Feldman, J. Figueiredo, Jean‐François Flot, Mila Grinblat, A. Heyward, M. Hidaka, M. Hirose, Akira Iguchi, N. Isomura, R. Kinzie, Seiya Kitanobo, Alyson Kuba, O. Levy, Y. Loya, T. Mezaki, Amin R. Mohamed, M. Morita, S. Nojima, Y. Nozawa, Rian Prasetia, E. Puill-Stephan, C. Ramírez-Portilla, Hanna Rapuano, Y. Rosenberg, Y. Sakai, K. Sakai, T. Shlesinger, T. Terraneo, I. Yakovleva, H. Yamamoto, K. Yamazato
Sesoko Station, Okinawa, has been the site of many significant advances in coral reproductive research and it continues to be a preferred destination for both Japanese and international researchers. Consequently, there are decades of spawning observations, which we present and explore here with the aim of making it easier to predict when species spawn at Sesoko Station. The data include over 700 spawning observations from 87 species of reef-building hermatypic corals. Almost all spawning occurred between dusk and dawn, with most spawning activity concentrated in the 2 to 4 hours after sunset. Some phylogenetic patterns were evident: most Acropora species spawn on or around the 6 full moon after December 21 (the northern hemisphere winter solstice); spawning in common species of merulinids and Porites appears to be concentrated around the 7 full moon and spawning in the fungiids around the 8 and subsequent full moons. The night of peak spawning with respect to the night of the full moon varied considerably among years in common Acropora species, but was dependent on the calendar date of the full moon in May or June. Therefore, despite Journal homepage: http://www.jstage.jst.go.jp/browse/galaxea/-char/en Galaxea, Journal of Coral Reef Studies 24: 1-9(2022) Special issue: Coral reef research in Sesoko Island -50 years anniversary of Sesoko Station, University of the Ryukyus Galaxea, Journal of Coral Reef Studies 2 Baird et al.: A coral spawning calendar for Sesoko Station an extended spawning season of over three months and considerable variation in the calendar date of spawning in many species among years, the month and night of spawning are reasonably predictable for many species enhancing the value of Sesoko Station as a site for coral reproductive research.
冲绳的雪子站在珊瑚繁殖研究方面取得了许多重大进展,它仍然是日本和国际研究人员的首选目的地。因此,有几十年的产卵观察,我们在这里展示和探索的目的是使它更容易预测物种何时在Sesoko站产卵。这些数据包括来自87种造礁两性珊瑚的700多个产卵观察。几乎所有的产卵都发生在黄昏和黎明之间,大部分产卵活动集中在日落后的2至4小时。一些系统发育模式是明显的:大多数Acropora物种在12月21日(北半球冬至)之后的6个满月上或前后产卵;在常见种类的牛角鱼和波利特鱼中,产卵似乎集中在满月7前后,而在真菌类中产卵则集中在满月8前后。在常见的鹿角螺物种中,产卵高峰的夜晚与满月的夜晚有很大的不同,但这取决于五月或六月满月的日历日期。因此,尽管期刊首页:http://www.jstage.jst.go.jp/browse/galaxea/-char/en Galaxea, Journal of Coral Reef Studies 24: 1-9(2022)特刊:濑子岛珊瑚礁研究-濑子岛站50周年,琉球大学Galaxea, Journal of Coral Reef Studies 2 Baird et al.:Sesoko Station的珊瑚产卵日历一个延长的产卵季节超过三个月,许多物种的产卵日期在历年中有相当大的变化,对许多物种来说,产卵的月份和夜晚是可以合理预测的,这增强了Sesoko Station作为珊瑚繁殖研究地点的价值。
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引用次数: 7
A hanging life of acroporids in success after COT outbreaks 在COT暴发后成功的acroporids悬命
Pub Date : 1900-01-01 DOI: 10.3755/GALAXEA.11.33
M. Hatta
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引用次数: 1
Developmental changes in the intensity and distribution pattern of green fluorescence in coral larvae and juveniles 珊瑚幼虫和幼鱼绿色荧光强度和分布模式的发育变化
Pub Date : 1900-01-01 DOI: 10.3755/galaxea.21.1_13
D. Haryanti, M. Hidaka
Coral larvae and juveniles often exhibit green fluorescence due to green fluorescence proteins (GFP). Ontogenetic changes in the distribution pattern of green fluorescence in coral are not fully understood. We investigated changes in the intensity and distribution pattern of green fluorescence of the corals Acropora tenuis, Pocillopora damicornis, and Isopora palifera during early developmental stages. Green fluorescence distribution in larvae differed among the three species studied and changed after the larvae metamorphosed into primary polyps. Green fluorescence distributed mainly in the epidermis of P. damicornis and I. palifera larvae but in the gastrodermis in A. tenuis larvae. In P. damicornis and A. tenuis primary polyps, green fluorescence was present around the oral opening and in a ring structure below the tentacular ring. Green fluorescence was also present on the tips of the tentacles of P. damicornis and I. palifera primary polyps. Furthermore, green fluorescence intensity in A. tenuis primary polyps increased significantly after inoculation of symbionts, irrespective of the success of symbiont acquisition. In I. palifera, the fluorescence in­ tensity decreased and, in some cases, disappeared after the acquisition of symbionts. Moreover, bleaching stress increased green fluorescence in P. damicornis juveniles. The present observations suggest that green fluorescence intensity in juvenile corals is influenced by the presence or acquisition of symbiont cells as well as by stressful conditions. This study also suggests that GFP might have different functions among coral species and at different developmental stages of the corals.
由于绿色荧光蛋白(GFP)的作用,珊瑚幼虫和幼体经常表现出绿色荧光。珊瑚中绿色荧光分布模式的个体发生变化尚不完全清楚。本研究研究了三种珊瑚(Acropora tenuis、Pocillopora damicornis和Isopora palifera)发育早期绿色荧光强度和分布模式的变化。三种幼虫的绿色荧光分布不同,且在幼虫蜕变为初级水螅体后发生变化。绿色荧光主要分布在大角棘球蜂和白斑棘球蜂的表皮,而在细棘球蜂的胃表皮。damicornis和a . tenutis的原发息肉,在口口周围和触手环下的环状结构中存在绿色荧光。damicornis和I. palifera初级珊瑚虫的触须顶端也存在绿色荧光。此外,接种共生体后,与共生体获取成功与否无关,柽柳原生水螅体的绿色荧光强度显著增加。在获得共生体后,植物的荧光强度下降,有的甚至消失。此外,漂白胁迫增加了damicornis幼鱼的绿色荧光。目前的观察结果表明,幼珊瑚的绿色荧光强度受到共生细胞的存在或获取以及应激条件的影响。该研究还表明,绿色荧光蛋白可能在不同珊瑚种类和不同发育阶段具有不同的功能。
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引用次数: 6
Reef status in the Mandapam group of Islands, Gulf of Mannar 马纳尔湾曼达帕姆群岛的珊瑚礁状况
Pub Date : 1900-01-01 DOI: 10.3755/GALAXEA.12.65
N. Marimuthu, J. J. Wilson, A. Kumaraguru
Manoli Reef Complex (MRC) and Kurusadai Reef Complex (KRC) of the Gulf of Mannar, southeast coast of India were taken for this study to estimate the biophysical status of the coral reef ecosystems. This study was conducted between the years 2006 and 2008. About 25 sites all around the islands were chosen for this study. Among them, good Live Coral (LC) cover was recorded in fourteen sites. The other categories like Dead coral with algae, Exposed reef and Rubble, Seagrass, Algal assem-blage, Muddy flat and Sandy flat were also considered in this study. The estimated sedimentation rate of this area was higher in seaward sides than the shoreward sides.
以印度东南沿海马纳尔湾的马诺里珊瑚礁复合体(MRC)和库鲁萨岱珊瑚礁复合体(KRC)为研究对象,对珊瑚礁生态系统的生物物理状况进行了评估。这项研究是在2006年到2008年之间进行的。这些岛屿周围大约有25个地点被选为这项研究的地点。其中14个地点录得良好的活珊瑚覆盖。其他类别,如死珊瑚带藻类,暴露的珊瑚礁和碎石,海草,藻类集合,泥地和沙地也在本研究中被考虑。该区向海两侧的沉积速率比滨岸两侧的沉积速率高。
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引用次数: 10
SIDIF: Spatial Information Databases Integration Framework 空间信息数据库集成框架
Pub Date : 1900-01-01 DOI: 10.3755/GALAXEA.15.66
M. Mustafa, Zailani Ms, Zaidi Mz
As common practices, evaluation process is done by special dive task force unit to conduct diving activity to observe on how Artificial Reefs (AR) growth. This evaluation for effectiveness and efficiency of AR development is quite difficult and troublesome. In this paper, the framework architecture for databases integration process using location coordinate data (longitude and latitude) of AR will matches with the fish catches data from identified fish landing port that using SIDIF. With SIDIF, the data of fish catches will be mapped with data on location coordinate of AR as a whole via mapping and integration of these two different databases. Using this methodology, the effectiveness and efficiency of AR development will be achieved as well as the evaluation will be measured.
按照惯例,评估过程由专门的潜水工作小组进行,以观察人工鱼礁的生长情况。对AR开发的有效性和效率进行评估是相当困难和麻烦的。本文利用AR的位置坐标数据(经纬度)进行数据库集成过程的框架体系结构,与利用SIDIF识别的鱼港渔获量数据进行匹配。利用SIDIF,通过绘图和整合这两个不同的数据库,将渔获量数据与AR的位置坐标数据作为一个整体进行映射。使用这种方法,将实现AR开发的有效性和效率,并将对评估进行测量。
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引用次数: 0
Dark survival of Oulastrea crispata 乌拉斯特里亚的黑暗生存
Pub Date : 1900-01-01 DOI: 10.3755/GALAXEA.14.117
V. Denis, J. K. Leung, Chia-Min Hsu, H. Hsieh, W. Tsai, Chaolun Allen Chen
2012, after more than one year in total darkness and being exposed to temperature from 10.7 to 31.3oC, this colony was still alive and visually seemed unaffected by such conditions (Fig. 1a). Moreover, extra-tentacular buddings suggested that this colony continues to grow over this period. Lack of chlorophyll fluorescence (
2012年,经过一年多的完全黑暗和10.7到31.3摄氏度的温度,这个群体仍然活着,并且在视觉上似乎没有受到这些条件的影响(图1a)。此外,触角外的萌芽表明这个群体在这段时间内继续生长。缺乏叶绿素荧光(
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引用次数: 7
Mg/Ca and Sr/Ca ratios in a coral from Koh Chueak, Surat Thani, Thailand 在泰国素叻他尼岛的Koh Chueak珊瑚中Mg/Ca和Sr/Ca比值
Pub Date : 1900-01-01 DOI: 10.3755/GALAXEA.14.63
Wararat Sirianansakul, N. Pumijumnong, T. Mitsuguchi, S. Putchakarn, N. Boontanon
Abstract The Mg/Ca and Sr/Ca ratios were determined for Porites lutea specimens that were collected from Koh Chueak, Surat Thani Province, Thailand, using inductively coupled plasma optical emission spectrometry. The ele­mental analyses were performed from the surface to the interior of the coral specimen along its growth axis at 1­mm intervals, generating the near­monthly resolved time series for the Mg/Ca and Sr/Ca ratios. The ratios demonstrate clear annual cycles, which are assumed to reflect variations in the sea surface temperature (SST). Comparing with the annual maximum and minimum values of SST, the following Mg/Ca -SST and Sr/Ca-SST relations were determined: Mg/Ca (mmol/mol)=−1.72+0.193×SST and Sr/Ca (mmol/mol)=11.83−0.098× SST. These relations are different than those of previously published studies. The reason for this difference is unclear; however, it may be related to vital effects that have been observed for geochemical proxies in coral skeletons and to differences in chemical composition of seawater and in sampling procedure.
摘要:采用电感耦合等离子体发射光谱法测定了采自泰国素叻他尼省Koh Chueak的黄岩样品的Mg/Ca和Sr/Ca比值。从珊瑚标本的表面到内部沿其生长轴以1毫米的间隔进行元素分析,生成近月分辨率的Mg/Ca和Sr/Ca比值时间序列。这些比值显示出明显的年循环,假定这反映了海表温度(SST)的变化。对比海温的年最大值和最小值,得到Mg/Ca -SST和Sr/Ca-SST的关系:Mg/Ca (mmol/mol)=−1.72+0.193×SST, Sr/Ca (mmol/mol)=11.83−0.098× SST。这些关系与之前发表的研究结果不同。造成这种差异的原因尚不清楚;然而,这可能与在珊瑚骨骼中观察到的地球化学代用物的重要影响有关,也可能与海水化学成分和取样程序的差异有关。
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引用次数: 2
Presence of Alveopora tizardi (Scleractinia: Acroporidae) as an epibiont on molluscan shells in an anchialine lake of a raised atoll, Kakaban Island, East Kalimantan, Indonesia: An opportunist or a survivor? 在印度尼西亚东加里曼丹卡卡班岛的一个凸起的环礁上,作为软体动物壳上的表面生物的Alveopora tizardi(核虫纲:Acroporidae)的存在:一个机会主义者还是幸存者?
Pub Date : 1900-01-01 DOI: 10.3755/galaxea.g25-5
T. Tomascik, A. J. Mah
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引用次数: 0
期刊
Galaxea, Journal of Coral Reef Studies
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