Determining the upper boundary of the cobalt-rich crust distribution of a guyot is important for estimating the mineral resources available, however, it has also long been an unsolved question. Correlations between th...Determining the upper boundary of the cobalt-rich crust distribution of a guyot is important for estimating the mineral resources available, however, it has also long been an unsolved question. Correlations between the sub-bottom structures, revealed by sub-bottom profiling, and crust distribution can be revealed for the first time by the synchronous application of sub-bottom profiling and deep-sea video recording. The lower boundary of the sediment corresponds with the upper boundary of the crust. By analysis of these two kinds of data, the lower boundary of the sediment can be determined; therefore, the upper boundary of the crust distribution can be deduced. According to this method of analysis, the upper boundary of water depth of crust distribution of a seamount in the western Pacific is about 1 560 m.展开更多
The living morphology and infraciliature of six spirotrichous ciliates collected from the coastal South China Sea were investigated using live observation and protargol impregnation. These are Euplotes woodruffi Gaw, ...The living morphology and infraciliature of six spirotrichous ciliates collected from the coastal South China Sea were investigated using live observation and protargol impregnation. These are Euplotes woodruffi Gaw, 1939, Hemigastrostyla enigmatica （Dragesco and Dragesco-Kerneis, 1986） Song and Wilbert, 1997, Neourostylopsis flavicana （Wang et al., 2011） Chen et al., 2013, Protogastrostyla pulchra （Perejaslawzewa, 1886） Gong et al., 2007, Pseudoamphisiella alveolata （Kahl, 1932） Song and Warren, 2000, and PseudokahlieUa marina （Foissner et al., 1982） Berger et al., 1985. Among these, Protogastrostyla pulchra, Pseudoamphisiella alveolata and PseudokahlieUa marina are reported from the South China Sea for the first time, which manifest obvious differences apart from other Chinese populations. As new contribution, the detailed description of isolates from mangrove habitat of E. woodruffi and 1t. enigmatica, and aquaculture pond isolate of N.flavicana, are present.展开更多
One new species of free-living marine nematode of the genus Curvolaimus, Curvolaimus filiformis sp. nov. from the Huanghai Sea is described and illustrated. This new species is characterized by the buccal cavity teeth...One new species of free-living marine nematode of the genus Curvolaimus, Curvolaimus filiformis sp. nov. from the Huanghai Sea is described and illustrated. This new species is characterized by the buccal cavity teeth, large amphids and two ventral seta at the conical part of tail. Meanwhile, two new records of genus Halalaimus, Halalaimus longicaudatus and H. isaitshikovi are fast reported in China. Types are deposited in the College of Marine Life Sciences, Ocean University of China.展开更多
Based on a comparison between the oxygen isotope records of benthic and plank tonic foraminifers from core 8KL of the South China Sea and sea-level change records derived from the Huon Peninsula, New Guinea, it is fou...Based on a comparison between the oxygen isotope records of benthic and plank tonic foraminifers from core 8KL of the South China Sea and sea-level change records derived from the Huon Peninsula, New Guinea, it is found that both records are very similar from 72 K a B.P. to the present, especially for the benthic oxygen isotope record. The linear regression shows that δ18O changes (0.9995‰ for benthic foraminifers and 1.022‰ for planktonic foraminifers) are equal to 100 m in sea-level fluctuation. After making temperature correction in the δ18O record of benthic foraminifers from 72 to 120 Ka B.P., the curve of sea-level oscillation of the South China Sea since 186 Ka B.P. has been reconstructed. The lowermost sea - level that occurred in the last glacial maximum and oxygen isotope stage 6 is approximately - 130 m.展开更多
In a study of species composition of marine nanoplanktonic diatoms ( < 20 μm) in water samples from the East China Sea and Huanghai Sea (Yellow Sea), four diatom species were identified by TEM as new records...In a study of species composition of marine nanoplanktonic diatoms ( < 20 μm) in water samples from the East China Sea and Huanghai Sea (Yellow Sea), four diatom species were identified by TEM as new records for China. They were Thalassiosira oceanica Hasle, Navicula britannica Hustedt et Aleem, Nitzschia leehyi Fryxell and Synedra indica Taylor. Detailed description of the taxonomic characteristics with TEM photographs of the four species and their ecological behavior and distribution is given in this paper.展开更多
A neritid species Vittina pennata （von Born, 1778） is reported for the first time from the South China Sea. This is also the first report of this genus from Chinese waters. The specimen was collected from the Sanya ...A neritid species Vittina pennata （von Born, 1778） is reported for the first time from the South China Sea. This is also the first report of this genus from Chinese waters. The specimen was collected from the Sanya Harbor, Hainan Province, China and deposited in Marine Biological Museum, Chinese Academy of Sciences. Detailed descriptions of its shell feature are presented. Differences between this species, Vittina coromandeliana and Neritina pulligera are compared and discussed.展开更多
Porcellanasteridae is a group of starfish that live in the deep ocean around the world. The type species of this family, Porcellanaster ceruleus Wyville Thomson, 1878, is cosmopolitan as well as polymorphic. The first...Porcellanasteridae is a group of starfish that live in the deep ocean around the world. The type species of this family, Porcellanaster ceruleus Wyville Thomson, 1878, is cosmopolitan as well as polymorphic. The first record of its occurrence in the South China Sea is reported in this paper. One specimen was caught in the South China Sea on June 6, 2015 by trawl and identified to be a P. ceruleus. The morphological characteristics of this specimen are described and detailed pictures are provided. The discovery of this specimen further expands the distribution of P. ceruleus in the Pacific Ocean. The world distribution records of P. ceruleus and its synonymic species are reviewed in this paper.展开更多
The male of Candacia varicans Giesbrecht, 1892 from the South China Sea was recorded and described. In general, the male of C. varicans is morphologically similar to those of C. arrnata and C. curta. However, it is di...The male of Candacia varicans Giesbrecht, 1892 from the South China Sea was recorded and described. In general, the male of C. varicans is morphologically similar to those of C. arrnata and C. curta. However, it is distinguished with them by below several morphological characters： （1） posterolateral corners of the fifth thoracic segment prominently sharp and symmetrical; （2） right side of posterior edge of genital segment with a small backward protuberance; and （3） the dorsal surface of the third segment of the fifth pereiopod with a squamashaped protuberance.展开更多
Four species of caridean shrimps collected from the East China Sea and South China Sea represent new records for the Chinese waters： Lysmata kempi Chace, 1997; Lysmata lipkei Okuno and Fiedler, 2010; Chlorocurtisjact...Four species of caridean shrimps collected from the East China Sea and South China Sea represent new records for the Chinese waters： Lysmata kempi Chace, 1997; Lysmata lipkei Okuno and Fiedler, 2010; Chlorocurtisjactans （Nobili, 1904） and Rhynchocinetes conspiciocellus Okuno and Takeda, 1992. The diagnostic characters and illustrations of these four species are presented, with remarks on their taxonomy. The identification keys of these species from Chinese waters are provided.展开更多
The results obtained in this study highlight that further the macroalgae diversity in this region is even higher than what is reported to date. Here we present eight new records of marine macroalgae collected from the...The results obtained in this study highlight that further the macroalgae diversity in this region is even higher than what is reported to date. Here we present eight new records of marine macroalgae collected from the Caribbean coast of Costa Rica between March 2011 and May 2019. The morphological characteristics of Bryocladia cuspidata, Ceratodictyon variabile, Gracilaria hayi, Padina boergesenii, Zonaria tournefortii, Sargassum furcatum, Chaetomorpha aerea, and Bryopsis pennata var. secunda are described. The genera Bryocladia and Zonaria are reported for the first time for this region.展开更多
This study reviews all species belonging to the families Laodiceidae, Lovenellidae, Malagazziidae, and Mitrocomidae in the South China Sea. Two new species, Eucheilota carinata sp. nov. and Halopsis nanhaiensis sp. no...This study reviews all species belonging to the families Laodiceidae, Lovenellidae, Malagazziidae, and Mitrocomidae in the South China Sea. Two new species, Eucheilota carinata sp. nov. and Halopsis nanhaiensis sp. nov., are described and illustrated. One genus, Staurostorna, and two species, Staurostorna sp. and Octophialueiurn aphrodite （Bigelow, 1928）, are first recorded in China seas. The key to all medusa genera and species of Lovenellidae and Malagazziidae are presented. Other data are briefly summarized to the list and distribution of species presented on the family Laodiceidae, Lovenellidae, Malagazziidae and Mitrocomidae in the South China Sea. The type specimens are deposited in the Third Institute of Oceanography, State Oceanic Administration, China.展开更多
文摘Determining the upper boundary of the cobalt-rich crust distribution of a guyot is important for estimating the mineral resources available, however, it has also long been an unsolved question. Correlations between the sub-bottom structures, revealed by sub-bottom profiling, and crust distribution can be revealed for the first time by the synchronous application of sub-bottom profiling and deep-sea video recording. The lower boundary of the sediment corresponds with the upper boundary of the crust. By analysis of these two kinds of data, the lower boundary of the sediment can be determined; therefore, the upper boundary of the crust distribution can be deduced. According to this method of analysis, the upper boundary of water depth of crust distribution of a seamount in the western Pacific is about 1 560 m.
基金jointly supported by a Strategic Project of the Chinese Academy of Sciences[grant number XDA19070402]the National Natural Science Foundation of China[grant number 41790473]the Post-doctoral Innovation Foundation of Hubei Province。
基金The National Natural Science Foundation of China under contract Nos 31401954 and 41476144China Postdoctoral Science Foundation under contract Nos 2014M550378 and 2015T80753
文摘The living morphology and infraciliature of six spirotrichous ciliates collected from the coastal South China Sea were investigated using live observation and protargol impregnation. These are Euplotes woodruffi Gaw, 1939, Hemigastrostyla enigmatica （Dragesco and Dragesco-Kerneis, 1986） Song and Wilbert, 1997, Neourostylopsis flavicana （Wang et al., 2011） Chen et al., 2013, Protogastrostyla pulchra （Perejaslawzewa, 1886） Gong et al., 2007, Pseudoamphisiella alveolata （Kahl, 1932） Song and Warren, 2000, and PseudokahlieUa marina （Foissner et al., 1982） Berger et al., 1985. Among these, Protogastrostyla pulchra, Pseudoamphisiella alveolata and PseudokahlieUa marina are reported from the South China Sea for the first time, which manifest obvious differences apart from other Chinese populations. As new contribution, the detailed description of isolates from mangrove habitat of E. woodruffi and 1t. enigmatica, and aquaculture pond isolate of N.flavicana, are present.
文摘One new species of free-living marine nematode of the genus Curvolaimus, Curvolaimus filiformis sp. nov. from the Huanghai Sea is described and illustrated. This new species is characterized by the buccal cavity teeth, large amphids and two ventral seta at the conical part of tail. Meanwhile, two new records of genus Halalaimus, Halalaimus longicaudatus and H. isaitshikovi are fast reported in China. Types are deposited in the College of Marine Life Sciences, Ocean University of China.
基金Project 49206062 funded by the National Natural Science Foundation of China
文摘Based on a comparison between the oxygen isotope records of benthic and plank tonic foraminifers from core 8KL of the South China Sea and sea-level change records derived from the Huon Peninsula, New Guinea, it is found that both records are very similar from 72 K a B.P. to the present, especially for the benthic oxygen isotope record. The linear regression shows that δ18O changes (0.9995‰ for benthic foraminifers and 1.022‰ for planktonic foraminifers) are equal to 100 m in sea-level fluctuation. After making temperature correction in the δ18O record of benthic foraminifers from 72 to 120 Ka B.P., the curve of sea-level oscillation of the South China Sea since 186 Ka B.P. has been reconstructed. The lowermost sea - level that occurred in the last glacial maximum and oxygen isotope stage 6 is approximately - 130 m.
基金National Basic Research Prorities Programme("973" Project)of China under contract No.G1999043706 and No. 2001CB409701.
文摘In a study of species composition of marine nanoplanktonic diatoms ( < 20 μm) in water samples from the East China Sea and Huanghai Sea (Yellow Sea), four diatom species were identified by TEM as new records for China. They were Thalassiosira oceanica Hasle, Navicula britannica Hustedt et Aleem, Nitzschia leehyi Fryxell and Synedra indica Taylor. Detailed description of the taxonomic characteristics with TEM photographs of the four species and their ecological behavior and distribution is given in this paper.
基金The National Natural Science Foundation of China under contract No.41406185the Special Funds for the Young Scholars of Taxonomy of the Chinese Academy of Sciences under contract No.ZSBR-010the Special Program for Basic Research of the Ministry of Science and Technology,China under contract No.2013FY111200
文摘A neritid species Vittina pennata （von Born, 1778） is reported for the first time from the South China Sea. This is also the first report of this genus from Chinese waters. The specimen was collected from the Sanya Harbor, Hainan Province, China and deposited in Marine Biological Museum, Chinese Academy of Sciences. Detailed descriptions of its shell feature are presented. Differences between this species, Vittina coromandeliana and Neritina pulligera are compared and discussed.
基金The Ocean Public Welfare Scientific Research Project,State Oceanic Administration of the People’s Republic of China under contract No.201505004the State Key Development Program of Basic Research of China under contract No.2015CB755902
文摘Porcellanasteridae is a group of starfish that live in the deep ocean around the world. The type species of this family, Porcellanaster ceruleus Wyville Thomson, 1878, is cosmopolitan as well as polymorphic. The first record of its occurrence in the South China Sea is reported in this paper. One specimen was caught in the South China Sea on June 6, 2015 by trawl and identified to be a P. ceruleus. The morphological characteristics of this specimen are described and detailed pictures are provided. The discovery of this specimen further expands the distribution of P. ceruleus in the Pacific Ocean. The world distribution records of P. ceruleus and its synonymic species are reviewed in this paper.
基金The National Key Research and Development Program of China under contract No.2018YFC1406304the National Key Research and Development Program of China under contract No.2016YFC0304105the National Program on Global Change and Air-Sea Interaction-Biological Classification System Research under contract No.03-01-07-01
文摘The male of Candacia varicans Giesbrecht, 1892 from the South China Sea was recorded and described. In general, the male of C. varicans is morphologically similar to those of C. arrnata and C. curta. However, it is distinguished with them by below several morphological characters： （1） posterolateral corners of the fifth thoracic segment prominently sharp and symmetrical; （2） right side of posterior edge of genital segment with a small backward protuberance; and （3） the dorsal surface of the third segment of the fifth pereiopod with a squamashaped protuberance.
基金The National Natural Science Foundation of China under contract No.41506171the Public Science and Technology Research Funds Projects of Ocean under contract No.201505004partly,the Scientific and Technological Innovation Project of the Pilot National Laboratory for Marine Science and Technology(Qingdao)under contract No.2015ASKJ01
文摘Four species of caridean shrimps collected from the East China Sea and South China Sea represent new records for the Chinese waters： Lysmata kempi Chace, 1997; Lysmata lipkei Okuno and Fiedler, 2010; Chlorocurtisjactans （Nobili, 1904） and Rhynchocinetes conspiciocellus Okuno and Takeda, 1992. The diagnostic characters and illustrations of these four species are presented, with remarks on their taxonomy. The identification keys of these species from Chinese waters are provided.
文摘The results obtained in this study highlight that further the macroalgae diversity in this region is even higher than what is reported to date. Here we present eight new records of marine macroalgae collected from the Caribbean coast of Costa Rica between March 2011 and May 2019. The morphological characteristics of Bryocladia cuspidata, Ceratodictyon variabile, Gracilaria hayi, Padina boergesenii, Zonaria tournefortii, Sargassum furcatum, Chaetomorpha aerea, and Bryopsis pennata var. secunda are described. The genera Bryocladia and Zonaria are reported for the first time for this region.
基金The National Natural Science Foundation of China under contract No.41406216the Global Climate Change and Ocean Atmosphere Interaction Research under contract Nos GASI-01-02-02-03,GASI-01-02-04 and GASI-01-02-02-01+2 种基金the National Special Project on Gas Hydrate under contract No.GZH201100311the Marine Biological Sample Museum of the Chinese Offshore Investigation and Assessmentthe National Basic Research Program(973 Program)of China under contract No.2011CB403604
文摘This study reviews all species belonging to the families Laodiceidae, Lovenellidae, Malagazziidae, and Mitrocomidae in the South China Sea. Two new species, Eucheilota carinata sp. nov. and Halopsis nanhaiensis sp. nov., are described and illustrated. One genus, Staurostorna, and two species, Staurostorna sp. and Octophialueiurn aphrodite （Bigelow, 1928）, are first recorded in China seas. The key to all medusa genera and species of Lovenellidae and Malagazziidae are presented. Other data are briefly summarized to the list and distribution of species presented on the family Laodiceidae, Lovenellidae, Malagazziidae and Mitrocomidae in the South China Sea. The type specimens are deposited in the Third Institute of Oceanography, State Oceanic Administration, China.
