摘要:Taiwan is the largest island of China. It faces the Pacific Ocean on the east where the bottom relief is very steep and most of the isobaths run parallel to the coast. At the places several tens of sea miles away from the coast, the depth increases abruptly to several thousands of meters. But at the northeastern corner, that is, to the east of Sandiao Jiao-Suao, there is an abrupt change in bottom topography, the isobaths are nearly perpendicular to the coast and run in the direction ESE, and the depth decreases rapidly from both the north and the south. Here is the submarine ridge as shown in Fig.1.
North of the Philippines,the North Equatorial Current is divided into two parts, the main current(the Kuroshio) flows northward along the east coast of Taiwan, while the branch, besides partly entering into the South China Sea, flows northwestward and then northeastward along the west coast of Taiwan in summer. Accordingly, it may be considered that Taiwan Island is situated in the circumfluence of the Kuroshio and its branch in summer.
The width of the main axis of the North Equatorial Current east of the Philippines is about 45 to 90 sea miles, and the east to west scale of Taiwan is about 80 sea miles, therefore, the latter is about 1.8 to 0.9 times as wide as the former. It goes without saying that, such a large island as the Taiwan Island,standing out against the flow pattern of the North Equatorial Current and the Kuroshio, must have a noticeable effect on the flow pattern of the Kuroshio.
In the present paper, the hydrographical data collected in the period from 1927- 1973 in the region near Taiwan Island were analyzed mainly by qualititative treatment in order to study the topographic effects of Taiwan Island and adjacent bottom relief on the path of the Kuroshio.
摘要:The degree of unsaturation of several ions (include unstable complex) of trace metals in sea water and its control factor are studied. It is concluded that the ions are unsaturated in sea water and are at thermodynamic unstable state (nonequilibrium concentration and nonequilibrium state). The control factor is that the continent (natural processes) not to supply the sea water with sufficient ion content (no suspended matter) which reach the saturation. Chemical, biological and physical processes affect the ion content wíth a degree.
摘要:The mullet, Mugil so-iuy Basilewsky,is one of the important fishes cultured in sea and brackish waters. Its acclimatization and cultivation in fresh waters have been successfully done in China.
The present paper reports the resu1ts of observatioos on the natural propagation and of experiments on the artificial propagation of this species ill Guangang Lake, a brackish water lake in Tianjin, from 1967 to 1972.
关键词:mullet;artificial propagation;sea and brackish waters
摘要:This paper deals with a systematic study of Mesodesmatidae off the Chinese coast,5 species are described namely:Atactodea striata (Gmelin),Davila planum (Hanley) , Anapella retroconvexa sp. nov.Coecella chinensis Deshayes and Coecella turgida Deshayes.
摘要:During the years 1958—1960 the Oceanology Survey Team collected a large number of marine benthonic invertebrate specimens of which the Brachyura Crustacea is a conspicuous member. The Family Leucosiidae alone amounts to more than 70 species. There are 16 species belonging to the Genus Leucosia,of which five are new.
摘要:The present study is based upon the collections oF Haliotidae made by the Institute of Oceanology, Academia Sinica during the last 25 years from the Chinese coast. Out of a total number of 670 specimens examined, seven species of the genus H aliotis were identified, namely, H aliotis discus hannai Ino. H. diversicolor Reeve, H. asinine Linnaeus, H. ovina Gmelin, H. varia Linnaeus, H. clathrata Reeve, and H. planate Sowerby. of these species, H. planate Sowerby is recorded for the first time from China.
A description as well as a key to the identification of each species is given and the propagation and ecology of two artificially cultured species, H. discus hannai Ino, and H. diversicolor Reeve is briefly discussed.
摘要:Samples of pteriid molluscs from extensive collections made in the South China Sea and the East China Sea from 1950 to 1976 serve as material for this study.
The family Pteriidae consists mainly of warm-water species. With the exception of Pinctada radiate (Leach) which is a cosmopolitan species, all the other species are restricted to the Indo-West-Pacific region. They are found to occur mainly in the South China Sea, with only a few occurring in the East China Sea,none being found northwards.
A total of 17 species belonging to 4 genera is identified, of which 7 species are first recorded in Chinese waters. Six species, namely, Pteria (Austropteria), antelata (Iredale), P. (A.) cypsellus (Dunker), P. (A.) chinesis (Leach) Pinctada maxima (Jameson) , P. margaritifera(Linnaeus) , and Electroma ovata (Quoy and Gaimard) are found to occur in the Xisha Islands. Of these, Pinctada maxima (Jameson), Pteria (Austropteria), cypsellus (Dunker) and Electroma ovata(Quoy and Gaimard) are found as far north as the coast of Hainan Island, Pinctada margaritifera (Linnaeus) as far north as the coast of Guangdong Province, Pteria (Austropteria) chinensis (Leach) as far north as the East China Sea, while P. (A.) antelata (Iredale) is not found elsewhere other than the Xisha Islands. Two species--Pinctada nigra (Gould) and P. anomioides (Reeve) are found to occur only in Hainan Island. Six other species, namely P. martensi (Dunker), P. chemnitzi (Philippi), P. radiate (Leach), Pteria (Magnavicula) penguin (R?ding), P. (A.) lata (Gray) and P.(A.) contunix (Dunker) are distributed along the coast of Guangdong Province and Guangxi Zhuang Autonomous Region. Of these, the first two species are more abundant than the other species and may be distributed as far north as Dongshan in Fujian Province. Two species--P. (A.) brevialata (Dunker) and P. (A.) dendronephthya Habe are found only in the deeper waters of the South China Sea. Only one species--Pterelectroma zebra (Reeve) is found in the deeper waters off the eastern and northern coast of the Hainan Island and extends its distribution further northwords to as far as the East China Sea.
摘要:The present paper deals with 4 species of parasitic red algae belonging to 2 genera and 2 ordres. Of these, one is new and three are recorded for the first time from Chinese waters. The spermatangial conceptacles of Gracilariophila infidelis (Weber-van Bosse) Weber-van Bosse and detailed structure of cystocarp of G. deformans Weber-van Bosse are newly described.
The specimens studied, including the type specimens, are all deposited in the herbarium of the Institute of Oceanology, Academia Sìnica at Qingdao.
摘要:Hainan Island lies between lat.18°09'一20°02'N and 1oog.108°36"-112°02'E.Its sea temperature at surface is rather high, the February monthly mean is 22℃ while August is 29℃. Both of its seasonal and annual variations are small. The types of tides are irregular or rather mixed, the tidal range is not over 3 m usually.
Taking Maling (Yaxian) as an exemple, basing 'On the principles of Vaillant,we have discussed the zonation of the rocky coast between tide marks of Hainan Island. The belt from the highest high water (H. H. W.) to the lowest high water (L.H.W.) is called upper littoral belt, that from L. H. W. to highest low water (H.L.W.) is called mid-littoral belt, whereas that from H.L.W. to datum point is called lower littoral belt. Judging from the different cases each belt may be subdivided into several sub-belts.