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Vampyroteuthis pseudoinfernalis ***.:the second extant widespread deep sea squid species of Vampyromorpha(Cephalopoda:Coleoidea)

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Zoological Systematics 2024年第3期49卷 246-257页

作者： Dajun Qiu Bilin Liu Yupei Guo Wijesooriya A.S.W.Lakmini Yehui Tan Gang Li Zhixin Ke Kaizhi Li liangmin huang CAS Key Laboratory of Tropical Marine Bio-resources and Ecology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China University of Chinese Academy of Sciences Beijing 100049China College of Marine Sciences Shanghai Ocean UniversityShanghai 200090China

The vampire squid,Vampyroteuthis infernalis Chun,1903,is currently the only extant species in the family Vampyroteuthidae Chun,***,specimens from the Gulf of Guinea,Africa,and California suggested the possibility of additional ***,we report the second species of Vampyroteuthis,collected from the South China Sea,China,which differs from *** by its tail shape,lower beak,photophores position,and the phylogenetic analysis of mitochondrial COI and nuclear large subunit ribosomal DNA(LSU)sequences:*** present by the lacking of the tail,photophores located approximately one-third of the points between the fins and end,and the lower beak with a broad,short wing;*** Qiu,Liu&huang,*** by an acuate tail,a pair of photophores located at the midpoints between the fins and tail,and a lower beak with a broad,elongate wing.

关键词： Nuclear gene mitochondrial COI phylogeny morphology South China Sea

Coral reef ecological pump for gathering and retaining nutrients and exporting carbon:a review and perspectives

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Acta Oceanologica Sinica 2023年第6期42卷 1-15页

作者： Linbin Zhou Yehui Tan liangmin huang CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Provincial Key Laboratory of Applied Marine Biology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 511458China University of Chinese Academy of Sciences Beijing 100049China

How coral reefs with high productivity and biodiversity can flourish in oligotrophic tropical oceans has inspired substantial research on coral reef *** evidence shows that similar to water in an oasis in the desert,there are stable nutrient supplies to coral reefs in oligotrophic ***,with emphasis on the fluxes of organic matter,we summarize at the ecosystem level(1)the multiple input pathways of external nutrients,(2)the storage of nutrients in reef organisms,(3)the efficient retaining and recycling of dissolved and particulate organic matter within coral reef ecosystems,(4)the distinctly high phytoplankton productivity and biomass inside and near oceanic coral reefs,and(5)the export of reef-related organic carbon to adjacent open *** properties enable coral reefs to function as ecological“pumps”for gathering nutrients across ecosystems and space,retaining and recycling nutrients within the ecosystem,supporting high phytoplankton productivity,and exporting organic carbon to adjacent open ***,the high phytoplankton productivity and biomass make waters around coral reefs potential hotspots of carbon export to ocean depths via the biological *** demonstrate that organic carbon influx is vital for coral reef ecosystems’carbon budget and carbon *** concept of the coral reef ecological pump provides a framework to improve the understanding of the functioning of the coral reef ecosystem and its responses to *** of the coral reef ecological pump in coral reef studies are discussed in changing oceans driven by human activities and global change in the Anthropocene.

关键词： Darwin’s Paradox coral reef nutrients coral reef ecological pump carbon export ocean carbon cycle

Phytoplankton Assemblage Structure Shaped by Key Environmental Variables in the Pearl River Estuary, South China

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Journal of Ocean University of China 2014年第1期13卷 73-82页

作者： ZHANG Xia ZHANG Jingping huang Xiaoping huang liangmin Key Laboratory of Tropical Marine Bio-resources and Ecology South China Sea Institute of OceanologyChinese Academy of Sciences

Spatial distribution and temporal dynamics of phytoplankton community and their relationships with environmental factors were studied in the Pearl River Estuary(PRE), South China, in three seasons. Salinity was considered as the key environmental variable controlling horizontal distributions of phytoplankton community composition. A transition from dominance of freshwater diatoms(Aulacoseira granulata and A. granulata v. angustissima) to estuarine species(Skeletonema costatum and Pseudonitzschia delicatissima) was observed in the high flow season(summer) along the estuary gradient; in the low flow season(spring), the inner estuary was relatively homogeneous and some typical estuarine species could be found near the river mouth. In the normal flow season(autumn), a potentially toxic bluegreen species, Microcystis spp. was predominant in the middle reaches of the estuary, which should be seeded from upstream and transported downstream by river discharges. Phytoplankton abundance was negatively correlated with suspended solid content and nutrient concentration in the PRE, suggesting that turbidity and nutrient availability were the crucial factors regulating the algal biomass. Phytoplankton abundance in the outer estuary was enhanced by increasing irradiance and continued to be enhanced until phosphorus-limitation.

关键词： the Pearl River Estuary phytoplankton ecological associations turbidity salinity gradient

Seasonal variations in diversity and abundance of surface ichthyoplankton in the northern South China Sea

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Acta Oceanologica Sinica 2014年第12期33卷 145-154页

作者： LI Kaizhi YIN Jianqiang huang liangmin LIN Zhaojin Key Laboratory of Tropical Marine Bio-resources and Ecology South China Sea Institute of OceanologyChinese Academy of Sciences South China Sea Fisheries Research Institute Chinese Academy of Fishery Sciences

The objective of this study was to investigate the seasonal variations of ichthyoplankton diversity and abun-dance in the northern South China Sea based on the data collected during summer, winter and spring. In total, 95 taxa of larval fishes were identified. The greatest number of species was recorded in spring, followed by summer and winter. The number of species was distributed mainly in the coastal waters from the east of Leizhou Peninsula to the southeast of Hainan Island during the surveyed periods of summer and spring, but in the offshore waters during winter. The abundance of larval fish was lowest in winter, increased in spring, and reached the maximum in summer. High abundance of larval fish was generally restricted to coastal waters with the isobaths less than 50 m. Seasonal variations of larval fish richness, abundance and diversity index were significant （P〈0.001）. Carangidae was the most common and abundant taxon in summer and winter, whileSardinella sp.,Thrissa mystax andLeiognathus sp. were dominant in spring. High diversity and abundance of larval fish might be attributed to increased temperature and coastal upwelling in spring and summer.

关键词： species composition abundance ichthyoplankton Carangidae northern South China Sea

Striking taxonomic differences in summer zooplankton in the northern South China Sea: implication of an extreme cold anomaly

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Acta Oceanologica Sinica 2017年第10期36卷 87-96页

作者： LIAN Xiping TAN Yehui huang liangmin ZHOU Linbin Key Laboratory of Marine Bio-resource Sustainable Utilization (LMB) South China Sea Institute of OceanologyChinese Academy of Sciences

An extreme persistent cold anomaly was prevailing in the South China Sea in February 2008. In order to understand the effect of the cold anomaly on zooplankton community, the zooplankton composition, abundance and biomass were analyzed in the northern South China Sea in August 2007 and August 2008. A total of 467 zooplankton species representing 16 groups were identified, with 275 species in August 2007 and 351 in August2008. Copepods were the most dominant zooplankton group in the study area. Compared with 2007, a dramatic decline was observed in the abundance of four dominant copepod species： Subeucalanus subcrassus, Temora discaudata, Nannocalanus minor and Temora turbinata in 2008. Moreover, zooplankton abundance declined from 133.37 ind./m^3 in August 2007 to 75.49 ind./m^3 in August 2008. In contrast, the abundance of medusa, such as Diphyes chamissonis, and tunicate, such as Doliolum denticulatum and Dolioletta gegenbauri, increased during the same season. Cluster analysis showed that there was a difference in zooplankton community structure between the two years. These variations in zooplankton communities were indicative of an anomalous oceanographic condition along with the extreme cold event in 2008.

关键词： zooplankton community cold anomaly northern South China Sea

Environmental Drivers of Temporal and Spatial Fluctuations of Mesozooplankton Community in Daya Bay, Northern South China Sea

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Journal of Ocean University of China 2021年第4期20卷 1013-1026页

作者： LI Kaizhi MA Jie huang liangmin TAN Yehui SONG Xingyu Key Laboratory of Tropical Marine Bio-Resources and Ecology(LMB)Guangdong Provincial Key Laboratory of Applied Marine Biology(LMB)South China Sea Institute of Oceanology Chinese Academy of SciencesGuangzhou 510301China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou)Guangzhou 511458 China School of Life Sciences East China Normal UniversityShanghai 200241China University of Chinese Academy of Sciences Beijing 100049China Nansha Marine Ecological and Environmental Research Station South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China

The response of zooplankton to the ecological environment in Daya Bay is unclear under the influence of both climate changes and anthropogenic activities on a seasonal to inter-annual *** on monthly surveys and historical data,we found the zooplankton community had changed temporally and spatially.A total of 134 species was recorded during the study,and copepods dominated numerically in terms of diversity and *** copepods and cladocerans were the main contributors to zooplankton *** community structure of zooplankton was temporally classified into the warm and cold groups,and spatially into the three groups located in the marine cage-culture area(MCCA),the outflow of nuclear power plants(ONPP)and unpolluted waters(UPW).The zooplankton was characterized by low biomass(dry weight),high diversity and abundance in the warm period in contrast to that in the cold *** with the other two groups,the MCCA group of zooplankton showed high abundance,low diversity and *** in dominant species were closely related to temperature,salinity and chlorophyll a *** diversity and dry weight decreased in comparison with 30 years ago,while zooplankton abundance *** seasonal variation in zooplankton was affected mainly by temperature that was controlled by monsoon,while the spatial difference in the community structure was probably due to eutrophication in the MCCA and thermal water discharge from *** zooplankton community is undergoing great changes with the tendency of miniaturization and gelatinization in recent 30 years in Daya Bay.

关键词： zooplankton monsoon eutrophication thermal water discharge Daya Bay South China Sea

Relationship between phytoplankton composition and environmental factors in the surface waters of southern South China Sea in early summer of 2009

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Acta Oceanologica Sinica 2012年第3期31卷 109-119页

作者： KE Zhixin TAN Yehui huang liangmin ZHANG Jianlin LIAN Shumin Key Laboratory of Marine Bio-resources Sustainable Utilization South China Sea Institute of OceanologyChinese Academy of ScienceGuangdong 510301China

Horizontal distributions of phytoplankton abundance,species composition as well as environmental factors were investigated in the surface waters of southern South China Sea (SCS) in early summer (May 16 to June 7) of *** most areas of southern SCS,the concentrations of nitrogen and phosphorus were very low and DIN/DIP ratios usually were lower than the Redfield N/P Ratio of 16∶*** nutrients were significant lower in the upwelling region off Vietnam.A total of 144 taxa of phytoplankton were identified in the study *** dominant genera were Prorocentrum,Gonyaulax,Gyrodinium,Scrippsiella and Chaetoceros,*** patterns of early-summer phytoplankton abundance and species composition should be mainly controlled by the upwelling off Vietnam and the discharge of Mekong River in the southern *** dominated in the nutritious Mekong River Estuary or upwelling region off Vietnam; while dinoflagellates dominated in the oligotrophic pelagic *** canonical correspondence analysis (CCA) indicates that most of diatoms favor higher levels of silicate and phosphorus,as well as lower temperature; while most of dinoflagellates favor the lower silicate and phosphorous and higher *** and CCA results indicate that silicate,nitrate and temperature were the most relevant environmental factors to regulate the horizontal pattern of early-summer phytoplankton in the surface waters of southern SCS.

关键词： phytoplankton species composition nutrient canonical correspondence analysis South China Sea

Radiolarian transfer function for paleo-primary productivity in the South China Sea

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Chinese Science Bulletin 1999年第13期44卷 1232-1237页

作者： Muhong Chen liangmin huang Xia Tu Fan Zheng Chinese Acad Sci S China Sea Inst Oceanol Guangzhou 510301 Peoples R China

Basic data of radiolarian group and primary productivity were from 46 investigation stations of the South China Sea. The factor analysis of principal component and the least squares estimation in both linear regression and nonlinear estimation were applied to establishing the radiolarian transfer function for paleo-primary productivity in this sea area. The results show that the transfer function of nonlinear regression analysis for the radiolarian assemblage and primary productivity has much better parameters. Factors analysis has accumulating variance of 83.6% and communalities of more than 0.940347. Nonlinear regression analysis gives multiple correlation coefficient as 0.84888 and explained variance as 72.059%. The equation of transfer function is with an average estimated error of about 53.778 mg·C/m^2·d, which is 14.69% in average observed values. Calculation accuracy is 85.31% for the system of transfer function.

关键词： radiolarian paleo-primary productivity transfer function paleoceanography South China Sea.

A Comparison of the Zooplankton Community in the Bay of Bengal and South China Sea During April-May, 2010

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Journal of Ocean University of China 2017年第6期16卷 1206-1212页

作者： LI Kaizhi YIN Jianqiang huang liangmin TAN Yehui LIN Qiang Key Laboratory of Tropical Marine Bio-Resources and Ecology Chinese Academy of Sciences Guangzhou 510301P. R. China South China Sea Institute of Oceanography Chinese Academy of Sciences Guangzhou 510301 P. R. China

This study compares the structure of the zooplankton community in the Bay of Bengal(BoB) and South China Sea(SCS) during the period of spring inter-monsoon, 2010. A total of 215 species of zooplankton were identified, of which 187 species were present in the BoB and 119 in the SCS. Of the taxonomic groups recorded, Copepoda was the most diverse group in all samples followed by pelagic Tunicata, Siphonophorae and Chaetognatha. Flaccisagitta enflata, Cosmocalanus darwinii, Euchaeta larva, Macrura larva and Candacia truncata were predominant both in the BoB and SCS. Moreover, the distribution of some dominant species differed regionally, such as Cypridina dentata, Pleuromamma robusta and Mesosagitta decipiens only in the BoB, and Pleuromamma gracilis, Neocalanus gracilis and Eudoxoides spiralis in the SCS. The average zooplankton abundance was 33.37 ± 7.19 ind. m^(-3) in the BoB and 35.08 ± 2.07 ind. m-3 in the SCS. Copepoda was one of the most abundant groups in the Bo B and SCS. Based on multivariate analysis, it was possible to distinguish the zooplankton in the BoB and SCS communities at the similarity level of approximately 55%, and the dissimilarity was mainly due to C. dentata, P. robusta, M. decipiens, C. darwinii, N. gracilis and P. gracilis. The relationships between zooplankton and temperature, salinity and chlorophyll a were not statistically significant. Zooplankton community structure in the BoB and SCS was observed to be generally similar in terms of species composition and abundance, but the differences observed may be the result of species-specific geographical distribution and local hydrographic conditions.

关键词： zooplankton community inter-monsoon Bay of Bengal South China Sea