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| 1 | An Analysis and Modeling Study of a Sea Fog Event over the Yellow and Bohai Seas显示文摘In this study, a sea fog event which occurred on 27 March 2005 over the Yellow and Bohai Seas was investigated obser- vationally and numerically. Almost all available observational data were used, including satellite imagery of Geostationary Opera- tional Environmental Satellite (GOES)-9, three data sets from station observations at Dandong, Dalian and Qingdao, objectively reanalyzed data of final run analysis (FNL) issued by the National Center for Environmental Prediction (NCEP) and Regional At- mospheric Modeling System (RAMS) results. Synoptic conditions and fog characteristics were analyzed. The fog formed when warm, moist air was advected northwards over the cool water of the Yellow and Bohai Seas, and dissipated when a cold front brought northerly winds and cool, dry air. In order to better understand the fog formation mechanism, a high-resolution RAMS modeling with a 6 km×6 km grid, initialized and validated by FNL data, was designed. A 48 h modeling that started from 12 UTC 26 March 2005 reproduced the main characteristics of this sea fog event. The simulated lower visibility area agreed reasonably well with the sea fog region identified from the satellite imagery. Advection cooling effect seemed to play a significant role in the fog formation. | FU Gang GUO Jingtian Angeline Pendergrass LI Pengyuan | 2008 | Journal of Ocean University of China2008，7，1： | 26 |
| 2 | Analyzing the Flavor Compounds in Chinese Traditional Fermented Shrimp Pastes by HS-SPME-GC/MS and Electronic Nose显示文摘Shrimp paste is a type of condiments with high nutritional value.However,the flavors of shrimp paste,particularly the non-uniformity flavors,have limited its application in food processing.In order to identify the characteristic flavor compounds in Chinese traditional shrimp pastes,five kinds of typical commercial products were evaluated in this study.The differences in the volatile composition of the five products were investigated.Solid phase micro-extraction method was employed to extract the volatile compounds.GC-MS and electronic nose were applied to identify the compounds,and the data were analyzed using principal component analysis(PCA).A total of 62 volatile compounds were identified,including 8 alcohols,7 aldehydes,3 ketones,7 ethers,7 acids,3 esters,6 hydrocarbons,12 pyrazines,2 phenols,and 7 other compounds.The typical volatile compounds contributing to the flavor of shrimp paste were found as follows:dimethyl disulfide,dimethyl tetrasulfide,dimethyl trisulfide,2,3,5-trimethyl-6-ethyl pyrazine,ethyl-2,5-dimethyl-pyrazine,phenol and indole.Propanoic acid,butanoic acid,furans,and 2-hydroxy-3-pentanone caused unpleasant odors,such as pungent and rancid odors.Principal component analysis showed that the content of volatile compounds varied depending on the processing conditions and shrimp species.These results indicated that the combinations of multiple analysis and identification methods could make up the limitations of a single method,enhance the accuracy of identification,and provide useful information for sensory research and product development. | FAN Yan YIN Li-ang XUE Yong LI Zhaojie HOU Hu XUE Changhu | 2017 | Journal of Ocean University of China2017，16，2： | 25 |
| 3 | Phytoplankton Assemblage of Yangtze River Estuary and the Adjacent East China Sea in Summer, 2004显示文摘巡航与包括生物、化学、物理的题目获得长江河口的学科交差的理解的意愿从迟了的 8 月被进行到 2004 年 9 月上旬。水样品分析显示全部的浮游植物种类丰富是 137。他们, 81 在 Bacillariophyta 和 48 inPyrrophyta 被发现,为 59.1% 和 35.0% 的财务分别地。房间许多表水取样的一般水准是 8.8 x 10 ~ 4 房间L^(有最大值的-1),, 102.9 x 10 ~ 4 房间L^(在区域遇到的-1)( 31.75 °N , 122.33 °E )并且最小, 0.2 x 10 ~ 4 房间L^(-1),在( 30.75 °N , 122.17 °E )。Thedominant 种类至多驻扎是 Skeletonema 肋前缘弦音器和 Proboscia alata f。有 0.35 和 0.27 的优势的 gracillima。竖直分布分析显示房间丰富和优势种的明显的层化在 5, 18 和 33 .Shannon 牛肉熏香肠索引的代表性的车站被发现,浮游植物集合的平均与房间丰富介绍了否定关联,与出现在的最佳(30.75 ° N, 122.67 ° E ) 。为在这个区域的浮游植物花蕾主要根据通过河量的环境变量,硝酸盐的提高的营养素,硅酸盐和磷酸盐的 PCAanalysis 负责。 | LUAN Qingshan SUN Jun SHEN Zhilian SONG Shuqun WANG Min | 2006 | Journal of Ocean University of China2006，5，2： | 22 |
| 4 | A Review of Interaction Between Neon Flying Squid(Ommastrephes bartramii) and Oceanographic Variability in the North Pacific Ocean显示文摘The neon flying squid(Ommastrephes bartramii) is a short-lived opportunistic species widely distributed in subtropical and temperate waters in the North Pacific Ocean. The life cycle of O. bartramii from planktonic eggs to nektonic adults is closely linked to oceanographic conditions. The fluctuations in O. bartramii abundance and distribution tend to increase and widen continuously due to the heavy influences of ocean-climate events on various spatio-temporal scales. In this study, we reviewed the interaction between O. bartramii and oceanography variability in the North Pacific with respect to large-scale climatic-oceanic phenomena including El Ni?o, La Ni?a, Kuroshio, Oyashio and Pacific Decadal Oscillation(PDO), as well as regional environmental variables such as sea surface temperature(SST), sea surface height(SSH), sea surface salinity(SSS), chlorophyll-a(Chl-a) concentration, and plankton density. The population dynamics of O. bartramii is mediated mainly by meso- and large-scale climatic-oceanic events(e.g., Kuroshio and Oyashio Currents) rather than other local environmental conditions(e.g., SST and Chl-a concentration), because all of the oceanographic influences are imposed on the context of large-scale climate changes(e.g., PDO). An unstructured-grid finitevolume coastal ocean model coupled with an individual-based model is proposed to simulate relevant physical-biological oceanographic processes for identifying ocean-climate influence and predicting O. bartramii distribution and abundance in the North Pacific. Future research needs to be focused on improving the knowledge about early life history of O. bartramii and evaluating the relationship between marine physical environment and two separate passive drifting life stages of O. bartramii including free-floating eggs and planktonic paralarvae. | YU Wei CHEN Xinjun YI Qian TIAN Siquan | 2015 | Journal of Ocean University of China2015，14，4： | 23 |
| 5 | Three-Dimensional Ocean Sensor Networks:A Survey显示文摘The past decade has seen a growing interest in ocean sensor networks because of their wide applications in marine research,oceanography,ocean monitoring,offshore exploration,and defense or homeland security.Ocean sensor networks are generally formed with various ocean sensors,autonomous underwater vehicles,surface stations,and research vessels.To make ocean sensor network applications viable,efficient communication among all devices and components is crucial.Due to the unique characteristics of underwater acoustic channels and the complex deployment environment in three dimensional(3D) ocean spaces,new efficient and reliable communication and networking protocols are needed in design of ocean sensor networks.In this paper,we aim to provide an overview of the most recent advances in network design principles for 3D ocean sensor networks,with focuses on deployment,localization,topology design,and position-based routing in 3D ocean spaces. | WANG Yu LIU Yingjian GUO Zhongwen | 2012 | Journal of Ocean University of China2012，11，4： | 20 |
| 6 | Sedimentary Evolution of the Holocene Subaqueous Clinoform off the Southern Shandong Peninsula in the Western South Yellow Sea显示文摘Based on the stratigraphic sequence formed since the last glaciation and revealed by 3000 km long high-resolution shallow seismic profiles and the core QDZ03 acquired recently off the southern Shandong Peninsula, we addressed the sedimentary characteristics of a Holocene subaqueous clinoform in this paper. Integrated analyses were made on the core QDZ03, including sedimentary facies, sediment grain sizes, clay minerals, geochemistry, micro paleontology, and AMS 14 C dating. The result indicates that there exists a Holocene subaqueous clinoform, whose bottom boundary generally lies at 15–40 m below the present sea level with its depth contours roughly parallel to the coast and getting deeper seawards. The maximum thickness of the clinoform is up to 22.5 m on the coast side, and the thickness contours generally spread in a banded way along the coastline and becomes thinner towards the sea. At the mouths of some bays along the coast, the clinoform stretches in the shape of a fan and its thickness is evidently larger than that of the surrounding sediments. This clinoform came into being in the early Holocene(about 11.2 cal kyr BP) and can be divided into the lower and upper depositional units(DU 2 and DU 1, respectively). The unit DU 2, being usually less than 3 m in thickness and formed under a low sedimentation rate, is located between the bottom boundary and the Holocene maximum flooding surface(MFS), and represents the sediment of a post-glacial transgressive systems tract; whereas the unit DU 1, the main body of the clinoform, sits on the MFS, belonging to the sediment of a highstand systems tract from middle Holocene(about 7–6 cal kyr BP) to the present. The provenance of the clinoform differs from that of the typical sediments of the Yellow River and can be considered as the results of the joint contribution from both the Yellow River and the proximal coastal sediments of the Shandong Peninsula, as evidenced by the sediment geochemistry of the core. As is controlled mainly by coactions of multiple factors such as the Holocene sea-level changes, sediment supplies and coastal dynamic conditions, the development of the clinoform is genetically related with the synchronous clinoform or subaqueous deltas around the northeastern Shandong Peninsula and in the northern South Yellow Sea in the spatial distribution and sediment provenance, as previously reported, with all of them being formed from the initial stage of the Holocene up to the present. | QIU Jiandong LIU Jian SAITO Yoshiki YANG Zigeng YUE Baojing WANG Hong KONG Xianghuai | 2014 | Journal of Ocean University of China2014，13，5： | 17 |
| 7 | Growth and Mortality of Small Yellow Croaker(Larimichthys polyactis) Inhabiting Haizhou Bay of China显示文摘Length frequency data of small yellow croaker(Larimichthys polyactis) were acquired from the survey vessel in May,July,September and December,2011 in Haizhou Bay of China.In this study,921 fish individuals were analyzed for the estimation of growth and mortality parameters.Between length and weight,the power coefficient b was 2.7321,2.9703,3.0418 and 2.7252 for the 4 surveying months,respectively.The estimated von Bertalanffy growth function parameters were 230mm(L ∞) and 0.26yr-1(K) as were calculated with ELEFAN method equipped in FiSAT computer package.With length-converted catch curve analysis,the total mortality rate(Z) and its 95% confidence interval were 2.16(1.69-2.64) yr-1,0.59(0.15-1.04) yr-1,1.16(0.80-1.52) yr-1 and 0.96(0.70-1.23) yr-1 for the 4 surveying months,respectively,with the pooled data the value was 1.15(0.81-1.48) yr-1.The natural mortality rate(M) was 0.516 yr-1 as was calculated with Pauly's equation(the annual average sea water temperature was 11℃).Therefore,fish mortality rate was 0.634 yr-1.The yield-per-recruit analysis indicated that when t c was 1,F max was 0.7 and F 0.1 was 0.55.Currently,the age at first capture is about 1 year and F current was 0.634.Therefore,F current was larger than F 0.1 and less than F max.This indicates that current fish mortality is at a dangerously high level.With Gulland method,the biological reference point for fishery(F opt) was estimated as 0.516 yr-1,lower than current fish mortality.Accordingly,reducing catch in the region was strongly recommended. | LIU Qun XU Binduo YE Zhenjiang REN Yiping | 2012 | Journal of Ocean University of China2012，11，4： | 17 |
| 8 | Promotive Effects of Alginate-Derived Oligosaccharides on the Inducing Drought Resistance of Tomato显示文摘In order to determine the role of alginate-derived oligosaccharides (ADO) in drought stress resistance of tomato (Ly-copersicon esculentum Miller) seedlings, the leaves were exposed to different concentrations of ADO (0.05%, 0.10%, 0.20%, 0.30% and 0.50%) after drought stress was simulated by exposing the roots to 0.6 molL-1 PEG-6000 solution for 6 h. Changes in biomass, electrolyte leakage and malondialdehyde (MDA), free proline, total soluble sugars (TSS) and abscisic acid (ABA), the enzyme activities of catalase (CAT), superoxide dismutase (SOD), peroxidase (POD) and phenylalanine ammonia-lyase (PAL) were measured to investigate the effects of ADO treatment. The results showed that the treatment with an ADO concentration of 0.20% exhibited the highest performance of drought stress resistance in the tomato seedlings by decreasing the electrolyte leakage and the concentration of MDA, increasing the contents of free proline, TSS and ABA, and increasing the activities of CAT, SOD, POD and PAL after treatment with ADO. It is suggested that changes in electrolyte leakage, MDA, osmotic solutes, ABA, anti-oxidative enzyme and PAL activities were responsible for the increased drought stress resistance in tomato seedlings. To our best knowledge, this is the first report of the effect of ADO treatment on enhancing the drought stress resistance of tomato seedlings. | LIU Ruizhi JIANG Xiaolu GUAN Huashi LI Xiaoxia DU Yishuai WANG Peng MOU Haijin | 2009 | Journal of Ocean University of China2009，8，3： | 16 |
| 9 | Analysis on Long-Term Change of Sea Surface Temperature in the China Seas显示文摘Long-term change of sea surface temperature (SST) in the China Seas from 1900 to 2006 is examined based on two different observation datasets (HadISST1 and HadSST3). Similar to the Atlantic, SST in the China Seas has been well observed dur-ing the past 107 years. A comparison between the reconstructed (HadISST1) and un-interpolated (HadSST3) datasets shows that the SST warming trends from both datasets are consistent with each other in most of the China Seas. The warming trends are stronger in winter than in summer, with a maximum rate of SST increase exceeding 2.7℃ (100 year)-1 in the East China Sea and the Taiwan Strait during winter based on HadISST1. However, the SST from both datasets experienced a sudden decrease after 1999 in the China Seas. The estimated trend from HadISST1 is stronger than that from HadSST3 in the East China Sea and the east of Taiwan Island, where the difference in the linear SST warming trends are as large as about 1℃ (100 year)-1 when using respectively HadISST1 and HadSST3 datasets. When compared to the linear winter warming trend of the land surface air temperature (1.6℃ (100 year)-1), HadSST3 shows a more reasonable trend of less than 2.1℃ (100 year)-1 than HadISST1's trend of larger than 2.7℃ (100 year)-1 at the mouth of the Yangtze River. The results also indicate large uncertainties in the estimate of SST warming patterns. | LIU Qinyu ZHANG Qi | 2013 | Journal of Ocean University of China2013，12，2： | 16 |
| 10 | Expression Detection of DMRTs and Two sox9 Genes in Takifugu rubripes (Tetraodontidae, Vertebrata)显示文摘Sex determination and sex differentiation are important phenomena in fish, but the mechanisms of sex determination in Takifugu rubripes are poorly understood. In our study, the expression patterns of genes for DMRTs (DMRT1, DMRT2 and DMRT3), sox9a and sox9b in T. rubripes tissues were verified with the Reverse Transcription (RT)-PCR detection. It is showed that DMRT1 expressions in testis and ovaries were much lower, and no expressions were found in muscle, blood and tailfin. However, expressions for DMRT2 and DMRT3 were not found in the tissues stated above. Transcripts of sox9a were detected in muscle, fin, ovary and testis, but not in blood, whereas sox9b expression was only detected in ovary. The expression patterns of DMRTs, sox9a and sox9b in T. rubripes gonads suggest that these genes may not be sex-specific. | SHEN Xueyan CUI Jianzhou YANG Guanpin GONG Qingli GU Qianqun | 2007 | Journal of Ocean University of China2007，6，2： | 15 |
| 11 | A FVCOM-Based Unstructured Grid Wave, Current,Sediment Transport Model,I.Model Description and Validation显示文摘An effort was made to couple FVCOM (a three-dimensional (3D),unstructured grid,Finite Volume Coastal Ocean Model) and FVCOM-SWAVE (an unstructured grid,finite-volume surface wave model) for the study of nearshore ocean processes such as tides,circulation,storm surge,waves,sediment transport,and morphological evolution.The coupling between FVCOM and FVCOM-SWAVE was achieved through incorporating 3D radiation stress,wave-current-sediment-related bottom boundary layer,sea surface stress parameterizations,and morphology process.FVCOM also includes a 3D sediment transport module.With accurate fitting of irregular coastlines,the model provides a unique tool to study sediment dynamics in coastal ocean,estuaries,and wetlands where local geometries are characterized by inlets,islands,and intertidal marsh zones.The model was validated by two standard benchmark tests: 1) spectral waves approaching a mild sloping beach and 2) morphological changes of seabed in an idealized tidal inlet.In Test 1,model results were compared with both analytical solutions and laboratory experiments.A further comparison was also made with the structured grid Regional Ocean Model System (ROMS),which provides an insight into the performance of the two models with the same open boundary forcing. | WU Lunyu CHEN Changsheng GUO Peifang SHI Maochong QI Jianhua GE Jianzhong | 2011 | Journal of Ocean University of China2011，10，1： | 15 |
| 12 | Adsorption of Heavy Metal Ions,Dyes and Proteins by Chitosan Composites and Derivatives-A Review显示文摘Chitosan composites and derivatives have gained wide attentions as effective biosorbents due to their low costs and high contents of amino and hydroxyl functional groups.They have showed significant potentials of removing metal ions,dyes and proteins from various media.Chemical modifications that lead to the formation of the chitosan derivatives and chitosan composites have been extensively studied and widely reported in literatures.The aims of this review were to summarize the important information of the bioactivities of chitosan,highlight the various preparation methods of chitosan-based active biosorbents,and outline its potential applications in the adsorption of heavy metal ions,dyes and proteins from wastewater and aqueous solutions. | LIU Bingjie WANG Dongfeng YU Guangli MENG Xianghong | 2013 | Journal of Ocean University of China2013，12，3： | 15 |
| 13 | Response to Selection for Fast Growth in the Second Generation of Pacific Oyster (Crassostrea gigas)显示文摘Mass selection for fast growth was conducted in three Pacific oyster (Crassostrea gigas) stocks from China, Japan and Korea using previously established lines (CS1, JS1, and KS1). To determine whether continuous progress can be achieved by selection for growth, the progeny of three second-generation Pacific oyster lines was selected for shell height and evaluated via a 400-day farming experiment. When harvested at the end of the experiment, the selected crosses of CS2, JS2, and KS2 lines grew by 9.2%, 10.2% and 9.6% larger than the control crosses, respectively. During grow-out stage, the genetic gain of three selected lines was (10.2 ± 1.4)%, (10.4 ± 0.3)%, and (8.4 ± 1.6)%, respectively; and the corresponding realized heritability was 0.457 ± 0.143, 0.312 ± 0.071 and 0.332 ± 0.009, respectively. These results indicated that the selection for fast growth achieved steady progress in the second generation of oyster. Our work provides supportive evidence for the continuity of the Pacific oyster selective breeding program. | WANG Qingzhi LI Qi KONG Lingfeng YU Ruihai | 2012 | Journal of Ocean University of China2012，11，3： | 15 |
| 14 | Study on the Seasonal Variation of the Suspended Sediment Distribution and Transportation in the East China Seas Based on SeaWiFS Data显示文摘The monthly mean suspended sediment concentration in the upper layer of the East China Seas was derived from the retrieval of the monthly binned SeaWiFS Level 3 data during 1998 to 2006. The seasonal variation and spatial distribution of the suspended sediment concentration in the study area were investigated. It was found that the suspended sediment distribution presents apparent spatial characteristics and seasonal variations,which are mainly affected by the resuspension and transportation of the sus-pended sediment in the study area. The concentration of suspended sediment is high inshore and low offshore,and river mouths are generally high concentration areas. The suspended sediment covers a much wider area in winter than in summer,and for the same site the concentration is generally higher in winter. In the Yellow and East China Seas the suspended sediment spreads farther to the open sea in winter than in summer,and May and October are the transitional periods of the extension. Winds,waves,currents,ther-mocline,halocline,pycnocline as well as bottom sediment feature and distribution in the study area are important influencing factors for the distribution pattern. If the 10 mg L-1 contour line is taken as an indicator,it appears that the transportation of suspended sedi-ment can hardly reach 124°00′E in summer or 126?00′E in winter,which is due to the obstruction of the Taiwan Warm Current and the Kuroshio Current in the southern Yellow Sea and the East China Sea. | WANG Wenjuan JIANG Wensheng | 2008 | Journal of Ocean University of China2008，7，4： | 14 |
| 15 | Recent Advances in Researches on Physiologically Active Substances in Holothurians显示文摘In this report, we reviewed recent literature on physiologically active substances from sea cucumbers (SCs) andtheir activities together with results obtained from our study. Preventive properties against lipid metabolism were reported inrats using a whole SC preparation with no particular constituent specified. Administration of the preparation lowered serumand hepatic cholesterol levels and improved the HDL/LDL ratio. These functions may be attributed to the stimulatory effectof the extract on the secretion of cholesterol in feces. Novel fucosylated chondroitin sulfates (FCSs) from Ludwigothureagrisea significantly induced fibroblast growth factor 2-dependent angiogenesis in human umbilical vein endothelial cells (HU-VECs). The proangiogenetic activity seemed attributable to the action of the sulfated fucose branches on the polysaccharide.SCs contain mycosporine-like amino acids (MAAs) that are capable of absorbing UV. A biogenetic precursor of MAAs wasfirst reported in SCs. The anti-proliferative effects of a branched chain fatty acid from a sea cucumber on prostate cancercells was reported with the activity of 5-lipoxygenase. Glycosphingolipid constituents in SCs have been systematically ana-lyzed over the past ten years. The results showed that the gangliosides in several SCs differed from those of mammals in thata sialic acid of SC gangliosides directly binded to glucose of cerebroside. Neuritogenic activity of the glycosphingolipids wasdemonstrated in vitro experiments and may lead to the development of therapeutic products for neurological disorders. Ourstudy also showed that sphingoid bases, the hydrolyzed products of glycosphingolipids from SCs, induced significant apoptosisin several tumor cell lines. | Hirata Takashi Zaima Nobuhiro Yamashita Kyoko Noguchi Ryoko XUE Changhu Sugawara Tatsuya | 2005 | Journal of Ocean University of China2005，4，3： | 14 |
| 16 | Reconsidering Melt-water Pulses 1A and 1B: Global Impacts of Rapid Sea-level Rise显示文摘Re-evaluation of the post-glacial sea level derived from the Barbados coral-reef borings suggests slightly revised depth ranges and timing of melt-water pulses MWP-1A (96-76 m, 14.3-14.0 ka cal BP) and 1B (58-45 m, 11.5-11.2 ka cal BP), respectively. Ages of non-reef sea-level indicators from the Sunda Shelf, the East China Sea and Yellow Sea for these two intervals are unreliable because of the well-documented radiocarbon ( 14C) plateau, but their vertical clustering corresponds closely with MWP-1A and 1B depth ranges. Close correlation of the revised sea-level curve with Greenland ice-core data suggests that the 14C plateau may be related to oceanographic-atmospheric changes due to rapid sea-level rise, fresh-water input, and impaired ocean circulation. MWP-1A appears to have occurred at the end of Blling Warm Transition, suggesting that the rapid sea-level rise may have resulted from lateral heat transport from low to high-latitude regions and subsequent abrupt ice-sheet collapses in both North America-Europe and Antarctica. An around 70 mm a -1 transgression during MWP-1A may have increased freshwater discharge to the North Atlantic by as much as an order of magnitude, thereby disturbing thermohaline circulation and initiating the Older Dryas global cooling. | J. Paul Liu John D. Milliman | 2004 | Journal of Ocean University of China2004，3，2： | 13 |
| 17 | Changes in the Contents of ATP and Its Related Breakdown Compounds in Various Tissues of Oyster During Frozen Storage显示文摘The changes in the contents of adenosine 5’-triphosphate (ATP) and its related breakdown compounds were investigated in the adductor muscle, mantle, gill and body trunk of oyster (Crassostrea gigas) during frozen storage at -20℃ and -30℃ and compared with that of the fresh oyster. The investigation was performed using an HPLC system. Different extents of ATP decomposi- tion were found in various tissues frozen at the two temperatures. The K, K’ and A.E.C values were calculated as the chemical fresh- ness indices. Considering the results of sensory evaluation, the A.E.C. value in body trunk at -20℃ and -30℃ could be used as the best freshness index for frozen oyster. | WANG Qi XUE Changhu LI Zhaojie FU Xueyan XU Jie XUE Yong | 2007 | Journal of Ocean University of China2007，6，4： | 13 |
| 18 | Isolation and Characterization of Pathogenic Listonella anguillarum of Diseased Haft-Smooth Tongue Sole(Cynoglossus semilaevis Günther)显示文摘Studies were conducted to determine the cause of the acute mortality of half-smooth tongue sole Cynoglossus semilaevis Günther juveniles in a fish farm in Jimo,Shandong Province,China,in June 2006. Gross signs of the diseased tongue sole included several petechiae and ecchymoses on the body and fin necrosis and hemorrhagic lesion at the base of the fin. Bacteria were isolated from kidney,liver and hemorrhagic lesions of the diseased tongue sole. Among14 strains,SJ060621 was proved to be highly virulent to juvenile tongue sole with LD50 value of <1.0×105 colony forming units(CFU) mL-1,while the remaining 13 were avirulent. Among the 16 antibiotics tested,SJ060621 was sensitive to gentamicin and nitrofurantoin. It was identified as Listonella anguillarum with conventional plate and tube tests in combination with API 20E analysis. 16S rRNA gene and partial HSP60 gene sequenceing analysis revealed that the strain was highly homologous with L. anguillarum. Examination of the infected musculature by electron microscopy indicated numerous bacteria and lots of macrophages containing phagocytosed bacteria. Histopathological investigations revealed severe necrotic degenerative changes in the infected organs. Indirect immunofluorescence assay(IFA) was employed to detect the location of occurrence of bacteria,and bacteria were found in aggregations in the inflammatory areas in musculature. | TANG Xiaoqian ZHOU Li ZHAN Wenbin | 2008 | Journal of Ocean University of China2008，7，3： | 13 |
| 19 | Antioxidation Activities of Low-Molecular-Weight Gelatin Hydrolysate Isolated from the Sea Cucumber Stichopus japonicus显示文摘Gelatin extracted from the body wall of the sea cucumber (Stichopus japonicus) was hydrolyzed with flavourzyme.Low-molecular-weight gelatin hydrolysate (LMW-GH) of 700-1700 Da was produced using an ultrafiltration membrane bioreactor system.Chemiluminescence analysis revealed that LMW-GH scavenges high free radicals in a concentration-dependent manner;IC50 value for superoxide and hydroxyl radicals was 442 and 285 μg mL-1,respectively.LMW-GH exhibited excellent inhibitory characteristics against melanin synthesis and tyrosinase activity in B16 cells.Furthermore,LMW-GH notably increased intracellular glutathione (GSH),which in turn suppressed melanogenesis.LMW-GH performs antioxidation activity,holding the potential of being used as a valuable ingredient in function foods,cosmetics and pharmaceuticals or nutriceuticals. | WANG Jingfeng WANG Yuming TANG Qingjuan WANG Yi CHANG Yaoguang ZHAO Qin XUE Changhu | 2010 | Journal of Ocean University of China2010，9，1： | 13 |
| 20 | Assessment of South Pacific Albacore Stock (Thunnus alalunga) by Improved Schaefer Model显示文摘基于钩子和金枪鱼多钩长线渔业在南方太平洋操作的努力数据,南方太平洋青花鱼科的海产鱼股票被一个改进 Schaefer 模型估计。结果表明内在的生长率是大约 1.28374 并且从 73734 ~ 266732 公吨在范围带 capacitiesvareied。这种的生长能力是显著的。股票动力学主要取决于环境条件。股票仍然处于好状况。然而,在最近的年里的生物资源的连续减少应该被注意。 | Wang Chien-Hsiung Wang Shyh-Bin | 2006 | Journal of Ocean University of China2006，5，2： | 12 |
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