Journal of The Japanese Coral Reef Society最新文献_第7页

Population structure of six sympatric species of Trapezia associated with the hermatypic coral Pociliopora damicornis with a hypothesis of mechanisms promoting their coexistence 六种与雌雄同体的大角poiliopora damicornis共域珊瑚的种群结构及其促进共存机制的假设

Journal of The Japanese Coral Reef Society Pub Date : 1999-10-20 DOI: 10.3755/JCRS.1999.9

M. Tsuchiya, A. Taira

{"title":"Population structure of six sympatric species of Trapezia associated with the hermatypic coral Pociliopora damicornis with a hypothesis of mechanisms promoting their coexistence","authors":"M. Tsuchiya, A. Taira","doi":"10.3755/JCRS.1999.9","DOIUrl":"https://doi.org/10.3755/JCRS.1999.9","url":null,"abstract":"Seasonal changes in species composition and size frequency distributions of six sympatric coexisting species of Trapezia associated with the hermatypic coral Pociliopora damicornis were investigated to analyze their population structure, mechanisms promoting coexistence, and the organizing processes of the symbiont community. All Trapezia species showed a long recruitment season, but they could be divided into two groups according to variations in their size frequency distribution pattern throughout the year: Young T. ferruginea and T. guttata occurred all year round, while young T. cymodoce, T. areolata, T. digitalis, and T. sp. were absent part of the time (a few months). Recruitment of T. cymodoce and T. areolata occurred from April to August and from February to March, respectively. Young T. digitalis were abundant only in July. Even among larger colonies, those harboring only one or two Trapezia species were rather common. This suggests that agonistic interactions occur among these crab species. Although it is also true that host colonies harboring several species are sometimes found. Since no conspicuous hierarchy in inter-specific agonistic interactions has been demonstrated (Tsuchiya and Yonaha, 1992), new crab recruits of any species can invade colonies lacking strong competitors.Although these crab species require very similar resources, i. e. pocilloporid corals as their habitat and mucus produced by host corals as food, their coexistence on larger single colonies is promoted by several mechanisms: 1) different recruitment seasons, 2) weak hierarchy of agonistic interactions among the six species, and 3) microhabitat segregation between adults and young on a colony.","PeriodicalId":432348,"journal":{"name":"Journal of The Japanese Coral Reef Society","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114431263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Effect of mass coral bleaching on the community structure of small animals associated with the hermatypic coral Pocillopora damicornis 大规模珊瑚白化对与雌雄同体的poillopora damicornis相关小动物群落结构的影响

Journal of The Japanese Coral Reef Society Pub Date : 1999-10-20 DOI: 10.3755/JCRS.1999.65

M. Tsuchiya

引用次数: 19

The mass-bleaching of coral reefs in the Ishigaki Lagoon, 1998 石垣潟湖珊瑚礁的大规模白化，1998年

Journal of The Japanese Coral Reef Society Pub Date : 1999-10-20 DOI: 10.3755/JCRS.1999.31

H. Hasegawa, K. Ichikawa, M. Kobayashi, T. Kobayashi, M. Hoshino, S. Mezaki

{"title":"The mass-bleaching of coral reefs in the Ishigaki Lagoon, 1998","authors":"H. Hasegawa, K. Ichikawa, M. Kobayashi, T. Kobayashi, M. Hoshino, S. Mezaki","doi":"10.3755/JCRS.1999.31","DOIUrl":"https://doi.org/10.3755/JCRS.1999.31","url":null,"abstract":"Coral bleaching occurred at various places around the Ryukyu Islands in summer 1998. Several researchers have suggested links to high sea surface temperature. However, the observation of coral bleaching around Ishigaki-jima of the Yaeyama Island Group where the bleaching has been extensive since July shows that there was already a sign of the event during the Baiu rainy season.The study of corals on Ishigaki-jima presents the following:1) Coral bleaching was probably caused by the continued high sea surface temperature from July through September 1998.2) The corals had already been severely damaged by the sedimentation of red soil from the disturbed land surface during the Baiu season of the year which had nearly twice as much rainfall as normal year. The subsequent high sea surface temperature in summer contributed to accelerated bleaching.The observation of bleaching in moats around Ishigaki-jima in summer 1998 suggests that the progress of bleaching be divided into the following three time stages:1) Early stage: from around June 20 through early August2) Mature stage: from middle August through early September3) Final stage: from middle September through middle OctoberThe bleaching process divided by these stages is synchronous, with a time lag, with the seasonal change in sea surface temperature and the prevailing weather conditions in Okinawa.","PeriodicalId":432348,"journal":{"name":"Journal of The Japanese Coral Reef Society","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129656383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Short-term changes in the structure of a fish community following coral bleaching at Ishigaki Island, Japan 日本石垣岛珊瑚白化后鱼类群落结构的短期变化

Journal of The Japanese Coral Reef Society Pub Date : 1999-10-20 DOI: 10.3755/JCRS.1999.51

T. Shibuno, K. Hashimoto, O. Abe, Y. Takada

引用次数: 35

Mass destruction of the hermatypic corals during a bleaching event in Ishigaki Island,southwestern Japan 在日本西南部石垣岛的白化事件中，雌雄同体的珊瑚被大规模破坏

Journal of The Japanese Coral Reef Society Pub Date : 1999-10-20 DOI: 10.3755/JCRS.1999.41

Y. Fujioka

{"title":"Mass destruction of the hermatypic corals during a bleaching event in Ishigaki Island,southwestern Japan","authors":"Y. Fujioka","doi":"10.3755/JCRS.1999.41","DOIUrl":"https://doi.org/10.3755/JCRS.1999.41","url":null,"abstract":"The bleaching of hermatypic corals that occurred in the summer of 1998 throughout the Nansei Islands, southwestern Japan, was the most extensive one in recent years. Field investigations using a large quadrat (10×10m) method distinguished this bleaching from prior episodes as (1) the largest in scale, (2) the most severe, and (3) causing the highest mortality. At two shallow reef flat sites, a total of 85.9 and 92.2% in coverage of hermatypic corals were bleached and mortality reached 60.7 and 78.7% in the most thermally susceptible acroporids. Bleaching damage varied among species and habitats. Dominant coral species were classified into four categories of bleaching; I. both rates of bleaching and mortality were high (e. g. Acropora hyacinthus, A. pulchra), II. rate of bleaching was high, but mortality was low (e. g. A. digitifera, Montipora digitata), III. both rates of bleaching and mortality were low (e. g. Platygyra ryuhyuensis, Porites cylindrica), IV. mortality (due to bleaching) was higher than rate of bleaching (Leptoseris gardineri). Acroporids in Category I were thermally more susceptible than those in Category II as the surface area per volume of skeleton was larger. Species categorized into Category II and III were considered to be best adapted to severe thermal environments such as the shallow reef flat and moat. The mass bleaching during the summer to autumn of 1998 was considered to be caused mainly by extraordinary high thermal stress. Meteorological data showed that average sea water temperatures have risen by 0.7°C in summer and 2.0°C in winter over the past 85 years, resulting in more frequent and serious disturbance by bleaching on coral reefs in recent years.","PeriodicalId":432348,"journal":{"name":"Journal of The Japanese Coral Reef Society","volume":"55 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125973823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 51

Coral bleaching, geological ranges, and adaptation to high sea surface temperatures 珊瑚白化，地质范围，以及对高海面温度的适应

Journal of The Japanese Coral Reef Society Pub Date : 1999-10-20 DOI: 10.3755/JCRS.1999.89

K. Sugihara, Y. Iryu, T. Nakamori

引用次数: 14

Observations of bleaching patterns and recovery of massive Porites in the moat of Kudaka Island, Okinawa 冲绳久田岛护城河中大量孔隙的白化模式和恢复观察

Journal of The Japanese Coral Reef Society Pub Date : 1999-10-20 DOI: 10.3755/JCRS.1999.103

M. Nishihira, N. Higa

{"title":"Observations of bleaching patterns and recovery of massive Porites in the moat of Kudaka Island, Okinawa","authors":"M. Nishihira, N. Higa","doi":"10.3755/JCRS.1999.103","DOIUrl":"https://doi.org/10.3755/JCRS.1999.103","url":null,"abstract":"Coral bleaching is whitening of corals due to loss of zooxanthellae and/or their pigments caused by various environmental stressors (see review Brown 1997, and references therein). In Okinawan coral reefs, Yamazato (1981) reported that the extent of bleaching was different in different species, and suspected that the cause of the coral bleaching was elevated sea water temperature. In the summer of 1998, intense and extensive coral and coral reef bleaching events occurred in various regions in the Ryukyu Islands. The event was more severe than that in 1980 (Yamazato, 1981). It seems that the proximal cause of the 1998 bleaching was also unusual high sea water temperature observed over the wide area. When we visited Kudaka Island (26° 09' N, 127° 53' E) in late July 1998, corals were not bleached in the shallow moat (about 2 m maximum depth at low tide). On October 25, 1998, however, many of coral colonies were already bleached. The coral bleaching was suspected to have started in late August to September as was observed in other localities (Nishihira pers obs, see also Nishihira 1999). Since we found distinct bleaching patterns in some colonies of massive Porites in October 1998, we thereafter photographed them repeatedly to monitor recovery process until March 1999. Although the proximal cause of the bleaching was suspected to be elevated sea water temperature, data records were not available for Kudaka Island.","PeriodicalId":432348,"journal":{"name":"Journal of The Japanese Coral Reef Society","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127577493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of short-term illumination on calcification of the coral Galaxea fascicularis 短期光照对束状星系珊瑚钙化的影响

Journal of The Japanese Coral Reef Society Pub Date : 1999-10-20 DOI: 10.3755/JCRS.1999.19

M. Hidaka, T. Minei

{"title":"Effects of short-term illumination on calcification of the coral Galaxea fascicularis","authors":"M. Hidaka, T. Minei","doi":"10.3755/JCRS.1999.19","DOIUrl":"https://doi.org/10.3755/JCRS.1999.19","url":null,"abstract":"Time course of enhancement of calcification of the coral Galaxea fascicularis in light and decay of light-enhanced calcification in darkness were studied. The hourly rates of calcification and of photosynthesis/respiration of isolated polyps of G. fascicularis were measured successively in light or in darkness using the alkalinity anomaly technique. Corals were kept in darkness for 15-19h before experiments. Calcification rate during 50min incubations in light was about four times higher than that during previous incubation in darkness. Light-enhanced calcification did not decrease abruptly when the coral was returned to darkness but decayed gradually to about 46%, 3h after illumination was terminated. The rate of light-enhanced calcification increased gradually when corals were incubated in light. The photosynthetic uptake of CO2 by corals held in light was 3.7 times faster than CO2 uptake due to calcification. Dark respiration increased after 50min incubation in light. The slow decay of light-enhanced calcification in darkness suggests that there is an internal pool of substances which enhance calcification, and that accumulation of the substances might sustain high rates of calcification in darkness.","PeriodicalId":432348,"journal":{"name":"Journal of The Japanese Coral Reef Society","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114264546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Coral bleaching around Akajima, Okinawa 冲绳赤岛附近的珊瑚正在白化

Journal of The Japanese Coral Reef Society Pub Date : 1999-10-20 DOI: 10.3755/JCRS.1999.59

H. Taniguchi, K. Iwao, M. Omori

引用次数: 12

A reason of taxonomic classication of the families Mussidae and Faviidae (Cnidaria: Anthozoa: Scleractinia) Mussidae和Faviidae的分类原因(刺胞纲:珊瑚虫纲:刺胞纲)

Journal of The Japanese Coral Reef Society Pub Date : 1900-01-01 DOI: 10.3755/JCRS.15.107

H. Fukami

引用次数: 0