最新刊期
期 11 ， 1976
- 摘要：The Taiwan Strait is a very important sea region for ship-sailing and fishery activities, but the current data in the Strait are very scant up to now. In this paper, based on the historical data at hand, the co-relative relations between the monthly average surface currents in the Strait and the monthly M. S. L. differences across the Strait, the monthly M. S. L. differences across the Strait and the monthly M. S. L. at the western coast were analysed. The resu1ts show that a positive co-relative relation of sufficient significance exists between the former two sets data, and while a negative co-relative relation of relative significance exists between the latter two sets data. Therefore, it is possible to forecast the tendency of variations of the monthly average surface current in the Strait according to the monthly M. S. L. at the western coast (for example, Amoy). These empirical relations may be useful for the study of the tendency-forecast of the current in the Strait.关键词：MONTHLY AVERAGE SURFACE CURRENTS;TAIWAN STRAIT;THE MONTHLY MEAN SEA LEVEL DIFFERENCES
- 118
- |
- 61
- |
- 0
发布时间：2023-04-28 - 摘要：The Storm surge modele proposed by Jelesnianski as a means for forecasting and adopted by the U. S. National Weather Service has drawn much attention internationally in recent years. We tried to determine the relationship between the maximum velocity values and. its barometric fluctuations of centre of typhoon under the cyclostrophic wind condition, to obtain the depth profile correction factor in some Chinese ports by similarity method, and to forecast experimentally the continental-bound typhoon off the Chinese southeast coasts with the nomograph as proposed by Jelesnianski. The accuracy of this method as shown by our experiments is fairly good as long as all the requirements of this modele are satisfied. However, this modele has not taken into consideration the wind stress, abnormality of the sea surface, wave set-up and rainfalls, The forecaster is required to pay attentions to such factors as their effects cannot be neglected.关键词：THE JELESNIANSKI'S PROFILE;Storm surge forecasting
- 103
- |
- 57
- |
- 0
发布时间：2023-04-28 - 摘要：Surface sediments were analyzed for mineralogical composition, grain size and chemical content, from these data, it is possible to draw the following conclusions. The primary source of both the coarse sediments (> 0.01mm) and the fine sediments (< 0.01mm) is the Hai He (Hai River). The influence of Hai He on the settlement of mud-sands in the Port of Tanggu is as follows: mud-sands discharged from the Hai He move southward and mix with those discharged from the Huang He (Yellow River) to form a mud-shoal, some of them, however, move northward to meet with those discharged from Luan He (Luanho River) to accumulate there. Some of those mud-sands, under the flow action of the Hai He, move toward the sea to reach at a depth of 15m, approximately 20km from the present shoreline. The formation of huge mud-shoal off the New port is the direct action of the mud-sands discharged from the Hai He.
- 155
- |
- 68
- |
- 0
发布时间：2023-04-28 - 摘要：In present paper, based on the study of Xinhe paleo-ostracean reefs in the littoral plain of the southern part of Laizhou Wan (the Gulf of Bohai), we consider that the ostracean reefs are typical of a peculiar palaeoecological environment and are a good criteria which may be used both to identify paleo-coastline and to reconstruct palaeogeographic environment. According to the indicator of paleo-ostracean reefs, the existence of the Xinhe paleo-coastline is confirmed. The Xinhe paleo-ostracean reefs existed at 5000 to 6000yrs. ago (C14 dating), i.e. the relatively resistant stage of transgression during the post-glacial period. The characteristic of this stage is the development of ostracean reefs, therefore here termed "the stage of ostracean reefs". The sea level, at that time, would stand 2 to 3 m higher than at present.关键词：THE XINHE PALEO-COASTLINE;ostracean reefs
- 109
- |
- 66
- |
- 0
发布时间：2023-04-28 - 摘要：The small hole electrodes, silicon controlled D.C. light source and pure graphite powder two times the amount of the sample are used in the determination. Such amount of graphite may act broth as a buffer and a carrier, diminishing the influence of increased intensity caused by the impurities of the additional buffer and carrier, increasing the intensity of spectral line of V and Ni and decreasing the differences in the fundamental elements between the base and the sample at the same time. The error of average square-root for Ga, Ti, Ba, V, Ni, Cu, Mn and Cr are ±5 .4, ±5 .4, ±5.0, ±10.4, ±7.8, ±9.0. ±10 and ±8.1% respectively.关键词：QUANTITATIVE SPECTROMETRIC DETERMINATION;MINOR ELEMENTS;MARINE SEDIMENTS
- 115
- |
- 63
- |
- 0
发布时间：2023-04-28 - 摘要：This paper is the third of a series of studies on the intra-specific variation of fecundity of the Large Yellow Croaker. It presents the results of a comparison of the fecundities of two different spring spawning populations (the Taichu Yang and Kuanching Yang spring spawning populations, belonging to the Tai-chu race and Min Uehtung race, respectively). The samples consisting of 304 and 173 specimens, respectively of the above two populations were collected in 1959 during the period from May-June in their respective spawning grounds. Therefore, a11 the data are fully comparable.关键词：Large Yellow Croaker;ntra-specific variation of fecundity
- 160
- |
- 64
- |
- 0
发布时间：2023-04-28 - 摘要：This paper presents the results of a study of the morphology, ecology and larval development of Phoronis ijima Oka collected from the littoral zone of the Huang Hai (Yellow Sea). Phoronis ijima Oka is most abundantly distributed in the Huang Hai (Qingdao). Judging from its geographical distribution, it can be considered as a Warm temperate species. Adult worms live on muddy stone near low tide level in relatively quiet water; Usually in dense clumps, occasionally in a thin encrusting layer. The spawning season of Phoronis ijima Oka in Qingclao is in November to May:when the temperature of the sea water is between 4-16℃. The fertilized eggs, the two-cell stage and eight-cell stage of cleavage, the larva 'with two tentacles and the larva with four tentacles are obtained from the tentacle crown. We observed larvae of specimen in the dish freeing themselves with four and six tentacles. These larvae (Actinotrocha) swim quickly, rise to the surface, then dive to the bottom of the dish; this movement is frequently repeated. But all larvae died later under laboratory conditions. The larvae with eight tentacles were collected by means of plankton net from Jiaozhou Bay (Qingdao) were reared in the laboratory to complete their metamorphosis. As a result of which, we are able to identify the species as Phoronis ijima Oka. Egg to larva with two tentacles: about four days. Free-swimming period: 10-12 days. Metamorphosis: about two hours.
- 130
- |
- 63
- |
- 0
发布时间：2023-04-28 - 摘要：Three species of the Genus Rapata are found to occur in Chinese waters, namely, Rapana bezoar (L.), R. rapiformis (Born) and R. venosa(Valenciennes). R. bezoar(L.) is found in the Nan Hai (the South China Sea) and the Dong Hai (the East China Sea). We ohserved that there is latitudinal variation in the relative. breadth of its pseudo-umbilicus. Specimens found in the Dong Hai have a narrower pseudo-umbilicus far less typical than those found in the Nan Hai where the typical form with wider pseudo-umbilicus occurs. But so far we have not observed any morphological breaks within its geographic range,so we are inclined to consider them as representing two different local populations (eline) rather than as geographic subspecies. R. rapiformis (Born) occurs only in the Nan Hai. R. venosa (Valenciennes) is distributed mainly in the Huang Hai (the Yellow Sea.) and in the Bo Hai Wan (the Pohai Bay) and is also encountered as far south as Xiamen. Specimens collected from the open sea have rather small spines or even no spines, whereas those from the bay or :inshore areas are strongly spined. R. peichiliensis Grabau et King is merely an ecological form of R.venosa (Valenciennes). In addition to previously mentioned differences between R. venosa (Valenciennes) and R. bezoar (L.),we supply two more distinguishing features:(1) in R. venosa (Valenciennes) the spiral ribs on the expbsed surface of the shell are rather depressed, and the fine spiral ribs between them number 8-9 or more, while in R. bezoar (L.) they are rather raised, and the fine spiral ribs usually number 6-7 or 1ess. (2) In R. venosa(Valenciennes) ，the anterior end of the tip of the egg capsule is complete, while in R..bezoar (L.) it is truncate.关键词：Rapata;MURIDIDAE
- 101
- |
- 64
- |
- 0
发布时间：2023-04-28 - 摘要：In working on the Scleractinian corals commensal with sipunculid worms collected from the Chinese waters during 1958-1960, we found one remarkable specimen of the genus Heteropsammia (Scleractinia, Dendrophylliidae), from the Nan Hai (South China Sea) Which differs from the recorded species of the genus in outline. After careful examination, we are certain that it is a species new to science.
- 119
- |
- 79
- |
- 0
发布时间：2023-04-28 - 摘要：The material upon which this study is based was collected over a period of 22 years (1954-1976) from the littoral and sublittoral zones.A total of 11 species belonging to 4 genera is identified. Two species are for the first time recorded from Chinese waters.
- 121
- |
- 64
- |
- 0
发布时间：2023-04-28 - 摘要：A qualitative analysis of the foraminiferal content of three underwater samples from the Zhongsha Islands yielded a total of 212 species，of which 198 species are benthonic and 14 species are planktonie. . Of the benthonie species， the calcareous perforate forms constitute 57.1% (113 species) , the calcareous imperforate forms,28.3% (56 species) and the arenaceous agglutinate forms 14.6% (29 species). They belong to 40 families and 113 genera，of which 1 genus and 23 species are new;.Of the 14 planktonic species belonging to 3 families and 9 genera，none are different from those previously reported by us from the East China Sea.and the South China Sea.关键词：RECENT FORAMINIFERA;Zhongsha Islan
- 133
- |
- 58
- |
- 0
发布时间：2023-04-28
- Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09064830号-19
京公网安备11010802024621 - It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
- Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
0