共查询到20条相似文献，搜索用时 46 毫秒
1.
A combined numerical model of wind, wave, tide, and storm surges was built on the basis of the “wind field model in limited
sea surface areas”. When used to forecast the sea surface wind, wave height and water level, it can describe them very well.
Contribution No. 4108 from the Institute of Oceanology, Chinese Academy of Sciences.
This work supported by Stress Project (KZ952-S1-420), Chinese Academy of Sciences; 863 Project (863-818-06-05), and (863-818-Q-07) 相似文献
2.
In this study, the authors examined the relationship between monthly sea level data and concurrent large-scale monthly mean
sea level pressure and SST data for 1960 to 1990, which are reasonably well simulated by present day climate models; sea level
variations due to variations of regional atmospheric forcing and oceanic circulation, are not adequately simulated by a global
climate model because of insufficient spatial resolution. The authours applied a statistical “down scaling” strategy to sea
level along the Chinese coast. Two interrelated processes were identified: one process is the local wind or wave set-up of
water due to Asian monsoon wind anomalies; the other is the rainfall diluting effect in spring. At interdecadal time scale,
the later becomes more important and most likely plays a major role in the planetary scale atmosphere-ocean interaction taking
place in the eastern North Pacific.
Contribution No. 3236 from the Institute of Oceanology, Chinese Academy of Sciences.
Key project 39630060 and Project 49476274 supported by NSFC, and also supported by president's fund of Chinese Academy of
Sciences. 相似文献
3.
Zhu Qian 《中国海洋湖沼学报》1998,16(3):267-270
The orbit of the bowhead whale is quite modified, shows much more variation in comparison to that of the better studied mammals,
and is composed of the maxillary bone, lacrimal bone, frontal bone, temporal bone, zygomatic bone, parietal bone and sphenoid
bone. The whale’s eyeball usually protrudes beyond the bony orbital rim, based on the observation of this study. Our observation
in this study that the whale has an enclosed orbit differs from that of Prince (1956), who mentioned that the whale has an
open orbit.
Contribution No. 3455 from the Institute of Oceanology, Chinese Academy Sciences.
Cooperative research between Chinese Academy of Sciences, China and North Slope Borough,Barrow, Alaska, U.S.A. The research
funded by the Key Project (No. k2951-A1-245) of the Chinese Academy of Sciences. 相似文献
4.
A new species,Clathrocorys gracilis nov. spec. of Tripocyrtidae (Radiolarians: Nassellaria) from surface water in northern South China Sea, is described in this
paper. The new species has four radial beams arising from the cephalic base centre, each foot with cup-shaped structure and
ramified bar in the proximal section (near cephalic base), and each wing with a large mesh in the middle, a medium mesh and
a small mesh on each side respectively.
Project supported by the NSFC (No. 40276044) and the Chinese Academy of Sciences (No. KSCX2-SW-101B). 相似文献
5.
Triploidy was induced in Chinese shrimpFenneropenaeus chinensis by 30±0.5°C heat shock treatment (initiated at 20 min after fertilization) for 10 min to inhibit the release of PB2 at 18.0°C.
The highest triploid rate obtained was 84.5% in nauplius stage. The effect of heat shock treatment on meiosis and cleavage
of eggs was investigated in this work aimed to establish efficient procedures for triploid induction and to gain understanding
of the mechanism of triploid production. Three pronuclei that could be observed in the treated eggs under fluorescence microscope
developed into triploid embryos. Some abnormal chromosome behavior was observed in heat shocked eggs.
Contribution No. 4407 from the Institute of Oceanology, Chinese Academy of Sciences.
This work was supported by Project under Major State Basic Development Program (G1999012009) and Knowledge Innovation Program
of the Chinese Academy of Sciences (KZCX 2-211) 相似文献
6.
Ranlnoides longifions new species, off SE coast of Hainan Island, dorsal surface of carapace with an arched granular edge across carapace between the anterolateral teeth, median frontal tooth longest, second frontal teeth subquadrate. 相似文献
7.
Chemical means were used to extract polyphenols from healthy brown algae collected in littoral seawater. Experiments on corrosion
of A3 steel, the time-potential curve, and polarization curve in polyphenols seawater showed stronger cathodic polarization compared
with that in common seawater. This indicates that brown algae polyphenols might feasibly be used as corrosion inhibitor in
seawater.
Contribution No. 3763 from the Institute of Oceanology, Chinese Academy of Sciences.
Project 59471054 supported by NSFC and National “Nineth Five Year” Project 96-916-04-01. 相似文献
8.
Growth of black porgy,Sparus macrocephalus, was studied experimentally at four ration levels from starvation to satiation and four temperatures ranging from 14.8 to
26.8°C. At maximum rations, the specific growth rate (SGR) increased with temperature and was a negative linear function of
body weight. The relationship between SGR and ration levels was a decelerating curve. Stepwise regression was used to develop
the predictive models for the specific growth rates. Maintenance rations and optimum rations both increased with increased
temperature. The relationship between maintenance, optimum rations and body weight was influenced by temperature. Conversion
efficiencies increased with ration from zero at maintenance ration to a peak at the optimum ration, then declined with further
increased ration.
Contribution No. 3127 from the Institute of Oceanology, Chinese Academy of Sciences.
Project 39370542 supported by NSFC and study also supported by National Key Laboratory in the Institute of Hydrobiology, Chinese
Academy of Sciences. 相似文献
9.
Tetraploid induction was carried out by inhibiting mitosis I in fertilized eggs ofChlamys farreri. Mitosis I was blocked with cold shock (5–7°C), Cytochalasin B (0.75 mg/L) and 6-dimethylaminopurine (6-DMAP) (60–75 mg/L)
when 60% fertilized eggs released polar body II at 20°C. At 4-cells embryo stage, the ploidy was determined by counting chromosome
number. In control groups, most embryos were diploids (72.22%) and aneuploids (24.78%). In Cytochalasin B, cold shock and
6-DMAP treated groups, tetraploids were respectively 10.51%, 4.08%, and 13.34%; aneuploids were 43.10%, 35.93% and 29.16%,
and triploids were 7.84%, 8.52% and 18.33%. At D-larva stage, ploidy was determined by flow cytometry (FCM). The ploidy analysis
of day 2 larvae showed diploids in control group and also in three treated groups. Juvenile scallops (0.2–0.3cm) which were
harvested in two control groups and two CB treated groups were all diploids through checking ploidy individually by FCM.
Contribution No. 3648 from the Institute of Oceanology, Chinese Academy of Sciences.
Contribution No. 238 from the Experimental Marine Biology Laboratory, Chinese Academy of Sciences.
Project funded by grant (No. 819-01-07) from the Chinese Science and Technology Ministry and also by “Hundred Talents Plan”
grant from the Chinese Academy of Sciences. 相似文献
10.
Heat shocks effectively produced triploids inPenaeus chinensis. Fertilized eggs heat shocked (28–32°C) for 8 to 16 minutes, starting from 8 to 20 minutes after spawning, resulted in triploidy
induction rates of 39%–75%. Several triploid populations were cultured to 10 cm. In a triploid population, two kinds of ovaries
were observed. Histological examination showed apparent differences between these two kinds of ovaries, whereas among male
shrimp, there were no such differences.
Contribution No. 3465 from the Institute of Oceanology. Chinese Academy of Sciences.
The study was supported by the International Foundation for Science, Asian Fisheries Society and Chinese Climbing Project
PDB 6–2, and Chinese National 863 Project (No. 863-819-01-05). 相似文献
11.
ZOOPLANKTON COMMUNITY STRUCTURE OF THE SEA SURFACE MICROLAYER NEAR NUCLEAR POWER PLANTS AND MARINE FISH CULTURE ZONES IN DAYA BAY 总被引：1，自引：0，他引：1
ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｓｅａｓｕｒｆａｃｅｍｉｃｒｏｌａｙｅｒ (ＳＭ)ｗｉｔｈｓｐｅｃｉａｌｐｈｙｓｉｃａｌ,ｃｈｅｍｉｃａｌａｎｄｂｉｏｌｏｇｉｃａｌｐｒｏｐｅｒｔｉｅｓ,ｈａｄｂｅｅｎｗｅｌｌｄｅｓｃｒｉｂｅｄａｓａｓｉｔｅｏｆｉｎｔｅｎｓｉｖｅａｃｃｕｍｕｌａｔｉｏｎｏｆｄｉｓｓｏｌｖｅｄａｎｄｐａｒｔｉｃｕｌａｔｅｏｒｇａｎｉｃｍａｔ ｔｅｒｉｎｖｏｌｖｉｎｇｐｈｙｔｏｐｌａｎｋｔｏｎａｎｄｂａｃｔｅｒｉａ (Ｈａｒｄｙ,1 982 ) .Ｔｈｉｓｅｎｖｉｒｏｎｍｅｎｔｈａｓｇｒｅａｔｉｍｐｏｒ… 相似文献
12.
Study on the organic compounds and stable isotope composition of a sediment section in Dabusu Lake revealed that the organic materials in the sediments came mainly from terrestrial plants brought into the lake by rtmoff.The δ^13 C of the organic materials had high values during warm-dry climatic stages and decreased in cold-wet stages.Analysis of data on carbonate content and ^14C age showed that the lake basin had experienced several wet-cold and warm-dry climatic cycles since 15000 a BP. Since 6700 a BP, the climate reached a relatively stable warm-dry stage,so that the lake water was gradually condensed and finally a saline lake was formed. 相似文献
13.
ABUNDANCE AND PRODUCTION OF LIMNODRILUS HOFFMEISTERI （OLIGOCHAETA ： TUBIFICIDAE） IN ALGAE-DOMINATED LAKE HOUHU （WUHAN, CHINA） 总被引：1，自引：0，他引：1
April, 1996 to March, 1997 studies on the abundance and secondary production of Limnodrilus hoffmeisteri in an algae-dominated lake showed that the worm density and biomass peaked in December at 152 ind/m^2 and 0.087 g/m^2 , respectively. The secondary production of the animal was 0.294g/m^2 fresh wt/a. The turnover rate (P/B ratio) was 11.4. 相似文献
14.
Ｓｔｕｄｉｅｓｓｈｏｗｔｈａｔｔｈｅｇｌｏｂａｌｓｕｒｆａｃｅｔｅｍｐｅｒａｔｕｒｅｗｉｌｒｉｓｅａｔａｒａｔｅｏｆ０．３℃ｐｅｒ１０ａｉｎｔｈｅｎｅｘｔｓｅｖｅｒａｌｄｅｃａｄｅｓ（Ｈｏｕｇｈｔｏｎｅｔａｌ．，１９９０，１９９２；Ｓｈｉ，１９９５；... 相似文献
15.
The layered model in Part I was used to simulate the internal tide in a stratified, two layer, and rectangular sea area with
step-like topography. The internal tide current velocities of the upper and lower layers and the interfacial elevations were
computed and the effect of the upper layer water depth and density difference were studied. Numerical experiments verified
that the model can correctly simulate internal tides. The model was also applied to the northwestern part of the South China
Sea to simulate the internal tides there with real topography. The distributions of internal tide amplitude in interfaces
were delineated.
Contribution No. 3590 from the Institute of Oceanology, Chinese Academy of Sciences.
Project 49676275 supported by NSFC and also supported by National Special Research Program 97-926-05-02. 相似文献
16.
EFFECTS OF AGRICULTURE RECLAMATION ON THE HYDROLOGIC CHARACTERISTICS IN THE SANJIANG PLAIN, CHINA 总被引：1，自引：1，他引：0
1 THE NATURAL ENVIRONMENTAL CHARACTERISTICS The Sanjiang Plain is located in the northeast of Heilongjiang Province, China. Russia borders this region in the north and east. Its total area is 1.088×107ha. The area of plain occupies 61.21％of the total land area and that of hill and mountain amounts to 38.79％of the total land area. It is not only one of the most important regions with large area of fresh water wetlands and with varieties of rare migratory waterfowls, but a… 相似文献
17.
The spermatozoon ultrastrucmre of left-eye flounder, Paralichthys olivaceus, was ob-served by electronic microscopy, and shown to consist of head, midpiece and tail. Some nuclear vacuoles were observed inside and along the outer part of the nucleus and double-membrane structures were ob-served between the nuclear membrane and plasma membrane. The sperm sleeve consisted of four indepen-dent parts and had more than four mitochondria. Along the sperm tail there were wing-like lateral tins. 相似文献
18.
Scrippsiella trochoidea (Stein) Loeblich III was grown in a nitrogen-or phosphorus-limited batch culture system in laboratory. Growth rates and cellular
Chl-a were measured as functions of nitrate and phosphate concentrations. Growth rates were hyperbolic with both nitrate and
phosphate concentration and fit the Monod equation. The minimum cell quota of nitrogen and phosphorus and then the optimum
N∶P ratio ofS. trochoidea were estimated in this study. Measurement of phosphate concentration in Jiaozhou Bay suggest that phosphorus is the limiting
factor ofS. trochoidea growth.
Contribution No. 3679 from the Institute of Oceanology, Chinese Academy of Sciences.
Project 39790110 supported by NSFC, the study aslo supported by the National Climbing Project B (PDBG-7-2) and partly supported
by an MF grant from Hong Kong University of Science and Technology. 相似文献
19.
Luan Xi-wu 《中国海洋湖沼学报》1998,16(4):381-384
The start depth in gravity anomaly inversion is discussed in this paper, and a new method called “test comparing method” is
presented to determine the start depth when both boring data and seismic data are not available. Anticline and syncline density
interface models are designed to test the method; the calculated result agreed well with the designed value, which proved
that the new method can be used to determine the start depth in the gravity anomaly inversion when boring data and seismic
data are not available.
Contribution No. 3370 from the Institute of Oceanology, Chinese Academy of Sciences.
Project 49625609 supported by NSFC, and Young Scientist Lab. of Submarine Hydrothermal Activity Research. 相似文献
20.
The present paper reports 7 species of pontoniine shrimps collected from Hainan Island,South China Sea,by the Joint Chinese-German Marine Biology Expeditions,in which,Conchodytes nipponensis(De Haan,1844)and Coralliocaris brevirostris Borradaile,1898 are new records from Chinese waters. 相似文献