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Change in coral reef benthic communities in the Lembeh Strait and Likupang, North Sulawesi, Indonesia

Acta Oceanologica Sinica 2018年第12期37卷 45-54页

作者： HADI Tri Aryono SIHOUKA Jimmy SHI Xiaofeng BUDIYANTO Agus SUHARSONO Research Center for Oceanography Indonesian Institute of Sciences Conservation Unit for Bitung Marine Life Indonesian Institute of Sciences Third Institute of Oceanography Ministry of Natural Resources

Anthropogenic impacts and natural disturbances have been intense recently in the global scale, affecting the composition of coral reef benthic communities from coral to algal dominated reefs. However, this condition does not always occur considering corals are able to recover when the stressors falter. This study aims to investigate the change in coral reef benthic communities and the relationship among benthic categories. The study was carried out in 2014 and 2016 at five sites, three sites in the Lembeh Strait and two sites in Likupang, North Sulawesi Province. Underwater Photo Transect(UPT) was used at depth of around 4–6 m in slope areas. The result indicated that the benthic communities were slightly changing: the percent covers of hard corals, sponges, soft corals, macroalgae and substrate categories were not significantly different between the years but category of others, particularly seasonally growing hydroid, increased significantly, occupying the available substrates and overtopping other benthos surrounding. The study also found that there was a significant relationship between the change in benthic gradient and the number of hard coral colonies: when the composition becomes less complex, the number of colony declines. In contrast, the hard coral diversity remained unchanged, suggesting the coral reefs apparently have an ecological resilience(sustainable species diversity) against the change although ecological complexity declines. In addition, the hard coral cover was significantly correlated with soft coral and sponge covers, which did not change significantly among the years. In general, the coral reefs in North Sulawesi might experience a temporary blip due to the increasing percent cover of others, and be predicted to recover as there was no indication of soft corals and sponges to increase significantly. However, it is necessary to investigate the dynamic of benthic communities in different depth gradients to gain a comprehensive understanding as the communities respond differently to the light

关键词： coral reef benthic community percent cover Lembeh Strait Likupang

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Next-generation sequencing revealed specific microbial symbionts in Porites lutea with pigment abnormalities in North Sulawesi, Indonesia

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Acta Oceanologica Sinica 2018年第12期37卷 78-84页

作者： OU Danyun CHEN Bin HADI Tri Aryono SUHARSONO NIU Wentao ALFIANSAH Yustian Rovi Third Institute of Oceanography Ministry of Natural Resources Research Center for Oceanography Indonesian Institute of Sciences

Bacterial diseases affecting corals pose an enormous threat to the health of coral reefs. The relationship between certain bacterial species and coral diseases remain largely unknown. Pigment abnormalities are common in Porites lutea. Here we used Illumina 16S rRNA gene sequencing to analyze the bacterial communities associated with healthy P. lutea and P. lutea with pigment abnormalities. We observed an increase of alpha diversity of the bacterial community of P. lutea with pigment abnormalities, relative to healthy corals. We then identified changes in the abundance of individual operational taxonomic units(OTUs) between pigmented and healthy corals. We were able to identify eight OTUs associated with pigment abnormalities, which are possibly the causative agents of pigment abnormalities.

关键词： Porites lutea pigment abnormalities next-generation sequencing 16S rRNA bacterial diversity

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2种分子标记应用于澄黄滨珊瑚群体遗传多样性研究中的可行性

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应用海洋学学报 2014年第1期33卷 46-52页

作者：田鹏牛文涛林荣澄陈彬 SUHARSONO 国家海洋局第三海洋研究所福建厦门361005 印尼科学院海洋研究中心印尼雅加达14430

利用PCR技术对澄黄滨珊瑚的2种分子标记(线粒体细胞色素氧化酶亚基1基因COI和核糖体RNA内转录间隔区基因ITS)进行测序,探讨COI序列和ITS序列在澄黄滨珊瑚(Porites lutea)群体研究中的适用性,并从中选出最适合研究澄黄滨珊瑚群体遗传多... 详细信息

利用PCR技术对澄黄滨珊瑚的2种分子标记(线粒体细胞色素氧化酶亚基1基因COI和核糖体RNA内转录间隔区基因ITS)进行测序,探讨COI序列和ITS序列在澄黄滨珊瑚(Porites lutea)群体研究中的适用性,并从中选出最适合研究澄黄滨珊瑚群体遗传多样性的分子标记.结果显示COI序列变异位点少,成对序列差异在群体内、群体间都很小,不适于澄黄滨珊瑚的群体研究;而ITS区序列个体内成对的序列差异仅为0.35%,可以作为研究澄黄滨珊瑚群体遗传多样性的分子标记;通过对ITS1、ITS2、5.8S rRNA、ITS1+ITS2及ITS区序列的比较,认为ITS1+ITS2序列是最适合研究澄黄滨珊瑚群体遗传多样性的分子标记.本研究为以后研究我国沿岸造礁石珊瑚澄黄滨珊瑚的群体遗传结构提供方法依据,从而为保护管理和恢复受损珊瑚礁生态系统提供遗传学数据支持.

关键词：保护生物学澄黄滨珊瑚群体遗传分子标记 COI ITS1+ITS2

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Mud Volcano: Revealing the Stratigraphy of Kendeng Basin, Indonesia

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Open Journal of Yangtze Oil and Gas 2022年第1期7卷 48-64页

作者： Ardian Novianto Sutanto SUHARSONO Carolus Prasetyadi Wahyu Hidayat Geological Engineering Department UPN “Veteran” Yogyakarta Indonesia Geophysics Engineering Department UPN “Veteran” Yogyakarta Indonesia

The Kendeng Basin, the major depocenter of the East Java Basin, has been filled with deep-sea clastic volcanic deposits since the Middle Tertiary, which developed into volcanic deposits in the Quaternary. With thick Quaternary volcanic deposits covering almost the entire basin, outcrops are only found in the north, forming a fold-thrust belt structure. The oldest known stratigraphic unit is the early Miocene Pelang Formation, which was deposited in the lower to the upper bathyal zone. Rocks older than the Pelang Formation have not been identified in this basin either from outcrops or drill-hole data. However, the geochemical analysis of oil seepage proves to be different because the oil source rock in Kendeng Basin was interpreted to be of older lithology than the Pelang Formation, indicating a potentially older stratigraphic unit in the Kendeng Basin that has not been revealed to date. Mud volcanoes transported rock material from the Kendeng Basin to the surface, uncovering the stratigraphy that has been an enigma. The material in question includes Nummulites limestones, conglomerates, and quartz sandstones. Paleontological analysis results on rock fragments indicate that they belong to the Middle Eocene age, so they are older than the Pelang Formation. Mud volcano also carried younger limestones to the surface identified as Miocene Age (equivalent with the Pelang Formation), which were deposited in a middle neritic environment, so they provided information that shallow areas possibly formed a horst-graben structure during the Miocene in the Kendeng Basin. The appearance of Eocene and Miocene rock fragments can be used to complement the stratigraphy and it also provides a potentially new concept of source-reservoir rock in the Kendeng Basin.

关键词： Mud Volcano Stratigraphy of Kendeng Basin Eosen Sediment

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蓝碧海峡澄黄滨珊瑚群体遗传多样性

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应用海洋学学报 2015年第3期34卷 419-426页

作者：牛文涛田鹏林荣澄陈彬 SUHARSONO 施晓峰郑新庆国家海洋局第三海洋研究所福建厦门361005 印尼科学院海洋研究中心印尼雅加达14430

通过对印度尼西亚蓝碧海峡3个澄黄滨珊瑚(Porites lutea)地理群体(YM、YN、YS)的79个样本核糖体RNA转录单元内间隔区ITS基因(包括ITS1区和ITS2区)片段进行克隆、测序,探讨澄黄滨珊瑚的群体遗传多样性和遗传分化.结果表明:79条序列共获... 详细信息

通过对印度尼西亚蓝碧海峡3个澄黄滨珊瑚(Porites lutea)地理群体(YM、YN、YS)的79个样本核糖体RNA转录单元内间隔区ITS基因(包括ITS1区和ITS2区)片段进行克隆、测序,探讨澄黄滨珊瑚的群体遗传多样性和遗传分化.结果表明:79条序列共获得63个单倍型,3个群体呈现出高的单倍型多样性(Hd=0.991 56)和高的核苷酸多样性(Pi=0.026 81).Tajima'D检验、Fu's Fs检验和岐点分布检验(mismatch analysis)推测种群经历了群体扩张事件.单倍型邻接关系树和单倍型网络图表明澄黄滨珊瑚群体没有明显的地理谱系结构.分子方差分析(AMOVA)表明群体间遗传变异占1.22%,群体内遗传变异占98.78%.群体间固定指数(Fst)的绝对值为0.012 2,表明群体间遗传分化较弱.各群体间的基因流值均大于4,说明澄黄滨珊瑚在当地群体间随机交配,基因交流十分充沛,各珊瑚群体间没有地理隔离,可以互相作为造礁珊瑚修复用的来源补充地.

关键词：海洋生物学澄黄滨珊瑚遗传多样性基因流转录间隔区蓝碧海峡

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Structural Model of Kendeng Basin: A New Concept of Oil and Gas Exploration

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Open Journal of Yangtze Oil and Gas 2020年第4期5卷 200-215页

作者： Ardian Novianto Sutanto SUHARSONO Carolus Prasetyadi Tavip Setiawan Geological Engineering Department UPN “Veteran” Yogyakarta Yogyakarta Indonesia Geophysics Engineering Department UPN “Veteran” Yogyakarta Yogyakarta Indonesia Research & Technology Center (RTC) Pertamina Yogyakarta Indonesia

Kendeng Basin stretches in an E-W direction from the Quaternary Merapi-Ungaran Volcano range in the West to the Madura Strait East of Jawa Timur Province, Indonesia. With Quaternary volcanic deposits covering this basin, its subsurface configuration has not been accurately identified. Several scholars suggest that its configuration forms an asymmetrical basin deepening to the south as a result of volcanic deposits and extending E-W direction. This paper answers what configuration Kendeng Basin has, including whether it consists of a simple asymmetrical shape as previous studies have interpreted or other patterns due to tectonic processes that took place during its formation. The research employed Gravity and Magnetic method, and the results were processed by spectral and gradient analyses. Both analyses revealed that Kendeng Basin formed Horst-Graben structures extending in an E-W direction based on a response to compression and strain forces during its formation. A structure with an E-W direction controls the shape of the Horst-Graben and is transected by a structural pattern extending in a NE-SW direction or known as the Meratus pattern. These findings provide an alternative to the concept of oil and gas exploration, which, until today, is merely known from the emergence of oil seepages in Kendeng Basin.

关键词： Kendeng Basin Structure Gravity-Magnetic

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