最新刊期
期 11 ， 1976
- 摘要：The distribution of the Brunt-V?is?l? frequency is one of the most important dynamical characteristics of the ocean. In this paper the space-time variations of Brunt-V?is?l? frequency on the continential shelf of the East China Sea in summer are considered. It has?been confirmed that the state of sea water is related to ,the static stability frequency. In shallow sea as well .as in deep-sea, states of the depths for which the static stability is the largest are the most likely to be unstable dynamically. The vertical structure of sea water over the shelf of the East China Sea is also closely related to the static stability frequency. It is shown that 1) the number of water mass vertically may be determined by the number of the maximum of the vertical distrihution of mean Brunt-V?is?l? frequency with formula (3), 2) the depth :of the vertical boundary of water mass corresponds to that of the maximum stability, and 3) the depth of the core of intermediate water mass can be identified by the depth of the minimum stability.
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发布时间：2023-04-28 - 摘要：The vertical structure of the water temperature in the Bohai Sea, Yellow Sea and East China Sea shows some hydro-physical characteristics which can only be found over the continential shelves in shallow sea. Its distribution and variation appear to be more complicated. We have made the descriptive statistic analysis based on observational data (1975-1980) offered by National Bureau of Oceanography. This paper consists of three aspects: (1) the distribution of the relative frequency of the value of the thermal gradient (divided by absolute value equals to or greater than 0.1℃/m) ; and (2) the horizontal plane distribution of the water temperature as distinguished from its type; ,and (3) the discussion of three characteristic values of thermocline under its generation, development, powerful and prosperous, and decline processes.关键词：STATISTICAL CHARACTERISTICS;VERTICAL STRUCTURE OF WATER TEMPERATURE
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发布时间：2023-04-28 - 摘要：In this paper, the tide, quasi-maximum velocity of tidal current and tidal energy flux in the Bohai and the Yellow Seas are calculated on the basis of the method used previously by the author[1].The results are shown in figs 1—12. In addition, the properties of the tides arid tidal currents, the propagation of the tide waves and the tidal energy flux in the Bohai Sea and the Yellow Sea arc also briefly discussed.关键词：CHARACTERISTICS;TIDES;TIDAL CURRENT
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发布时间：2023-04-28 - 摘要：This paper shows that the Yellow Sea (summer) Cold?water is formed from winter by the conservative property of the temperature in the deep water. The vertical distribution of various physic-chemical parameters in winter are in uniform condition. In summer, the vertical distribution of σt, P04-P and SiO3-Si increases with the depth and the maximum value of O2 and pH appears near the lower limit of thermocline. Causes of variation of various parameters are also discussed.关键词：THE VERTICAL DISTRIBUTION;CHEMICAL FACTORS;THE YELLOW SEA COLD WATER
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发布时间：2023-04-28 - 摘要：This research indicates that the trend of the distribution of inorganic nitrogen and N/P in the Bohai Sea are similar to that of the total phytoplankton in most months. The content of inorganic nitrogen in the coastal estuary waters is higher than that in the central region. The increment in ammonia-N content is relative to the activity of zooplankton. In winter, the maximum value of the nitrate-N/P is 7, and the transform of inorganic nitrogen is not sufficient. The content of inorganic nitrogen, which has certain effects on the reproduction of phytoplankton in this area, is lower that that of phosphate.
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发布时间：2023-04-28 - 摘要：In a paper of the former of the authors, the electrically connected hanging specimens method was suggested to simulate offshore conditions for screening steels for marine application. For further examining whether the method is reliable for the studies on corrosion process and corrosion mechanism in different marine corrosion environments, such as atmospheric zone, splash zone, tidal zone and submerged zone, a comparative study on the corrosion products and the desructive types of corrosion of Ni-Cu-P. steel by using the methods?of hanging specimens connected electrically ,and long scale hanging specimens was made. In present paper, a good correlation ,between the two methods was observed.
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发布时间：2023-04-28 - 摘要：A method for determination of D-galactose and 3,6-anhydrogalactose in red seaweed by gas chromatography is described. Results obtained in investigation may be summarized as follows。关键词：GAS CHROMATOGRAPHIC ANALYSIS;MONOSACCHARIDES
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发布时间：2023-04-28 - 摘要：Organic tin coatings have been in use world-wide in recent years, but most of antifouling paints for marine vessels now are still based on the successful use of cuprous oxide. The antifouling paint must release enough copper into sea water by dissolution of cuprous oxide and form a poisonous surface layer which repels the attachment of marine organisms. It is therefore necessary to maintain a steady leaching rate not too low nor too high. A low leaching rate may result in heavy fouling rapidly. There exist some relation between the copper leaching rate and the paint ingredients. If this relation is well balanced, the copper leaching rate will be improved ,and economic benefit be gained. In order to make a comparative study, we have designed a series of pair formulations in our present experimentation.关键词：ANTIFOULING PAINT;COPPER LEACHING RATE
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发布时间：2023-04-28 - 摘要：This paper presents the experimental results of feeding mussel larva with Phaeodactylum tricornutum, Chaetoceros muelleri,Platymonas subcordiformis, Nannochloris oculata, Dicrateria zhanjiangensis, live beer yeast, medicine yeast tablets and soy-bean powder. The triradiate form of Phaecodactylum can be used by early stage larvae, which can grow evenly in size and has higher survival rate. Fusiform Phaeodactylum cells are not so good as feed as the triradiate forms, but they have the advantage over the former of being able to tolerate higher temperature thus can serve as food for a longer duration. Minute fusiform Phaeodactylum, just 9一16μm in length, is a good food for early stage Larva. Chaetoceros muelleri can be used by young larva as well. The effect resulting from giving such a feed is similar to that of giving Phaeodactylum ,but it requires higher culture temperature. This algae can be used as an early food in autumn spat-rearing. Platymonas is only suitable for larger larva due ,to its bigger cell. It can not be used until -the shell-length of ,the larva attains 120μm and it is most effective as feed when the temperature ,of the water is above 15°C. Nannochloris oculata, although can be easily swallowed by mussel larvae, is not an effective. feed as it hardly promotes the larvae's growth. Dicrateria zhanjiangensis is an effective food, though not so good as Phaeodactylum. Soy-bean powder, although better than beer yeast and medicinal yeast in food value, is not so good as Phaeodactylum. Soy bean powder and yeast, which are readily available and easy to keep, can be resorted to whenever there is an insufficient supply of the better feeds.
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发布时间：2023-04-28 - 摘要：The present paper presents the results of a taxonomic and ecological study of the Acantharia of the northern South China Sea. Specimens were collected by means of plankton net in May 1959 (0一200 m, 38 samples) and January, February 1960 (0一20 m, 22+33 samples) from the northern ,South China Sea. Forty-three species were identified (see Table I), of which 8 species belonging to 7 genera .and 5 families are recorded for the first time from Chinese waters. They are Acanthochiasma rubescens Krohn, Acanthostaurus nordgaardi J?rgensen, Astrolithium bulbiferum Haeckel. Dictyacantha tabulata (Haeckel) (?), Dictyacantha tetragonopa (Haeckel), Gigartacon fragilis Haeckel, Heteracon biformis (Popofsky), Heliolithium aureum Schewiakoff. Description of these species is given in the Chinese text.关键词：ACANTHARIA
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发布时间：2023-04-28 - 摘要：The present paper recommends two new methods of permanent preparation of acantharian specimens which can preserve well both soft and hard parts. The procedure of preparation is as follows.关键词：PERMANENT PREPARATION;ACANTHARIAN SPECIMENS
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发布时间：2023-04-28 - 摘要：This paper deals with 10 species o.f the Genus Caulibugula Veriill, 1900 collected from the Chinese seas, with the exception of one species, all are first records and 6 are new species. The type specimens of these new species are preserved in the Institute of Oceanology, Academia Sinica (Qingdao). Descriptions of the new species are given as follows.关键词：CAULIBUGULA VERRILL
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发布时间：2023-04-28 - 摘要：This paper deals with the species of the Subfamily Striarcinae found from China coasts. The materials were mainly collected by the Institute of Oceanology, Academia Sinica, in the past 28 years. It includes 8 species belonging to 4 genera. of these, 2 species (marked with an asterisk) are recorded for the first time from China coasts.关键词：ARCIDAE;STRIARCINAE
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发布时间：2023-04-28 - 摘要：The present paper is a result of a study on the seasonal distribution of Sciaenoid fishes, which arc the interesting material for fish fauna study, and some of them are the most irnportont food fishes in China. Monthly samples of Sciaenoid fish, Pseudosciaena crocea, P. polyactis, Miichthys miiuy, Collichtys lucidus, Atrobucca nibe, Johnius belengerii, Wak tingi, Nibea albiflora, N. diacanthus, Argyrosomus argentatus,A. macrocephalus, were caught with double draggers from 45 different locations at Lat. 27°30'N to 31°30'N in marine sanctuaries off Zhejiang during March 1960—Febuary 1961. Total annual catch of 11 species of Sciaenoid fishes makes up about 33% of the total catch of 220 species. Catches of all these Sciaenoicl fishes have ,a seasonal variation in this area, some of them owing to spawning migration were high in spring and low in winter, such as Pseudosciaena crocea, P. polyactis, Miichthys miiuy etc. The seasonal change of sea water temperature is reflected on the seasonal change in species number and abundance of the Sciaenoid fishes, such as Atrobucca nibe,Nibea diacanthus, Wak tingi etc.关键词：SEASONAL DISTRIBUTION;SCIAENOID FISHES
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发布时间：2023-04-28 - 摘要：The present :paper, dealing with the pedunculate. Cirripedia (Suborder Lepadomorpha) , is the sixth part of a systematic study?of the cirripedian fauna of Chinese waters．The material for study was collected by the Institute of Oceanology, Academia Sinica during the period from 1950 to 1980, a great deal of them are from the continental shelf of the East China Sea during the years 1975一1980. Fifty-five species belonging to seven families and twenty-six genera arc identified. of these one species is described as new, and twenty.four species are recorded for the first time from Chinese waters. The type specimens of new species are deposited in the Institute of Oceanology, Academia Sinica at Qingdao,关键词：CIRRIPEDIA;SUBORDER LEPADOMORPHA
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发布时间：2023-04-28
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