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Progress in Natural Science:Materials International 2005年第2期15卷 62-66页

作者： FANG Yongqiang*, WENG Youzhu, YE Rongzhong and LIU Lili(The Third institute of oceanography of the state oceanic administration, Xiamen 361005, china) Third Inst. of Oceanogr. State Oceanic Admin. Xiamen 361005 China

Immunohistochemical localization of aromatase, estrogen and estrogen receptor in the digestive tract and enteric neurons of amphioxus is investigated. It was found that immunoreactive proteins of aromatase, estrogen and ER-α and β are expressed in hepatic diverticulum, epithelial cells of anterior and posterior region of midgut, as well as in enteric neurons, while hindgut showed immunonegative. The results suggest that digestive tract of amphioxus may be able to synthesize estrogen and possess endocrine function, like rat gastric epithelium and enteric neurons in mammals. The present study provides authentic morphological evidence for explaining the action mechanism of estrogen in regulating the digestive function of gut and the functional evolution of estrogen, which has important theoretical significance in amphioxus.

关键词： amphioxus digestive tract estrogen estrogen receptor α and β aromatase

The computation of maximum wind speeds of typhoon

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Acta Oceanologica Sinica 1990年第1期9卷 69-79页

作者： Chen Kongmo and Qin Zenghao Third institute of oceanography, state oceanic administration, Xiamen, china Shanghai Typhoon institute, Shanghai, china

-At present, it is still difficult to obtain an accurate maximum wind speed of typhoon with modern means,such as satellite survey , radar tracing and airplane reconnaissance. The performance of statistical equation established with observational maximum wind speed and the central pressure of typhoon is unstable ,and it is unreliable in operational use. Therefore a general pressure field model of typhoon is introduced in this paper based on atmospheric motion equations and formulas are derived for computing the maximum wind speed around typhoon center over sea surface . The theoretical curves derived from these formulas are in good agreement with those using the statistic empirical curves of typhoon pressure-wind relations over the western Pacific. Tests were conducted for typhoons which occurred in 1973 and in 1983 and the strongest typhoons selected each year during 1970 and 1978,the results were satisfactory. Meanwhile the analyses of computing results showed that the effect of Coriolis force could be negligible and the eccentric-elliptical pressure structure of typhoon could be treated as circular symmetric.

关键词： over

Variability of the Kuroshio in the East china Sea in 1995

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Acta Oceanologica Sinica 1999年第4期18卷 459-475页

作者： Liu Yong gang and Yuan Yao chu (Second institute of oceanography, state oceanic administration, Hangzhou 310012, china) Second institute of oceanography State Oceanic Administration Hangzhou 310012 China

A modified inverse method is ed to compute the Kuroshio in the East china Sea with the CTD andwind data collected by R/V Chofu Maru during four cruises of 1995. The computed results show that: (1) The volume transport (hereafter VT) of the Kuroshio through fortion PN is 23. 3×106, 34. 1× 106,21. 1× 106 and 26. 7 ×106 m3/s, respectively , during winter, spring, summer and autumn, i. e., its VT is largest in spring but smallest inthe summer of 1995. However, from the statistical average results [e. g., Yuan et al. (1993) ], its VT is largest insummer but smallest in autumn. This means that the year 1995 is an anomalous year, which can also be shown from the T - S distributions. The heat transport (hereafter HT ) through Section PN is 1. 6×1015, 2. 5× 1015, 1. 7 x1015 and 2.1× 1015 W, respectively, during winter, spring, summer and autumn. This shows also that the year 1995is an anomalous year. VT through Section TK (at the Tokara Staik) is the largest in the spring of 1995. (2) Thereare two current cores at Section PN during winter, spring and summer, and three cores in autumn. (3) The Kuroshiovelocities at Section PN are stronger in spring and autumn than those in the winter and summer of 1995. (4) Thereare countercurrents under and east of the Kuroshio at Section PN. (5 ) The average rate of heat transfer in the computed area from the ocean to the atmosphere is 6.28×103, -0.83× 103, -2.09×103 and 2.49×103J/(cm2.d), respectively, during winter, spring, summer and autumn.

关键词： East china Sea Kuroshio seasonal variation

Hydrographic features of the plume front in the Hangzhou Bay

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Acta Oceanologica Sinica 1993年第1期12卷 17-28页

作者： Wang Kangshan and Su Jilan Second institute of oceanography, state oceanic administration, Hangzhou 310012, china Second institute of oceanography State Oceanic Administration Hangzhou 310012 China China

A description is given of the distribution , spacial and temporal variation , mixing and transportation processes about the plume front in the Hangzhou Bay. This front is performed as a group of interfaces among, the water masses situated in the bay. A discussion is also given of the circulation feature in the frontal zone ence of the front.

关键词： plume front Hangzhou Bay kinematic feature

Distribution and ecological aspects of the Siphonophora in the middle of South china Sea

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Acta Oceanologica Sinica 1993年第2期12卷 317-322页

作者： Lin MaoThird institute of oceanography, state oceanic administration, Xiamen, china

This paper reports species composition, horizontal distribution and seasonal variation of total individual and dominant species of the Siphonophora and their relationship to the environmental factors. Materials from the water layers within 0～200 m were collected during the periods of September, 1983, April and May, July and August, and December, 1984 in the study region (12°-19°30′N, 111°-118°E, Fig. 1).

关键词： Distribution and ecological aspects of the Siphonophora in the middle of South china Sea

Application of the four models of directional spectra in the Bohai Sea

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Acta Oceanologica Sinica 1995年第1期14卷 15-22页

作者： Wu Xiujie and Teng Xuechun(first institute of oceanography, state oceanic administration, Qinghao 266003, china)

According to the wind-wave individual case directional spectra obtained from the instrument array and'956' wave buoy measures, the wind-wave directional spectra presented by Mitsuyasu, Donelan and Hasselmann onthe basis of the observations as well as theoretical wind-wave directional spectra by Wen Shengchang on the basis ofanalytic method are compared and checked from the pointview of total energy. Results show that Mitsuyasu's directional spectra are well identical with the measured wind-wave directional spectra developing fully in the Bohai ***'s and theoretical wind-wave directional spectra are also quite consistent with the measured results in the development of the wind waves, especially best with the measured results in the initial stage of the development of thewind waves.

关键词： Wind-wave directional spectrum wave energy ratio analytic method developing state instrument array.

Study on chemical forms of fluorine enrichment of Antarctic krill

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Acta Oceanologica Sinica 2000年第4期19卷 63-71页

作者： Pan Jianming, Zhang Haisheng, Liu Xiaoya (Second institute of oceanography, state oceanic administration, Hangzhou 310012, china) Second institute of oceanography State Oceanic Administration Hangzhou 310012 China

The different forms fluoine in different parts of molting process of krill was analyzed by culture of Antarctic krill (Euphausia superba). The results shaw that fluorine amount in cuticle is up to 90% of total in the krill. During the krill molting process, the fluorine content in cuticle and muscle varies alternatively. This is to say, the fluorine content in new cuticle and muscle is much lower after molted, the fluorine in krill comes from seawater by biological absorption of the krill, and the fluorine absorbed by krill lost with the old cuticle at the end stage of molting process. Meanwhile, the new molting process starts again. The evidence is proved by the change of different forms fluorine content in cuticle and muscle during krill's molting process. At last the author proposes the fluorine enriching process model of Antarctic krill.

关键词： Antarctic krill fluorine enrichment chemical forms

Study of aquatic chemical characteristic in some bays along the coastal region of Zhejiang Province

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Acta Oceanologica Sinica 1990年第4期9卷 547-554页

作者： Wang Yuheng,Dong Henglin and Jiang Guochang The Second institute of oceanography,state oceanic administration ,Hangzhou,china The Second Inst. of oceanography State Oceanic Administration Hangzhou China. China

In this paper,the aquatic chemical characteristics in the Hangzhou Bay,Xiangshan Bay and Leqing Bay along the coastal region of Zhejiang Province are discussed . Results show that the seasonal variations of chemical elements are obvious. The distribution of silicate in Hangzhou Bay and contents of dissolved oxygen and nutrient in the Xiangshan Bay are found to be unusual in winter. Correlations among the elements are complex. The content of nutrient in the Hangzhou Bay is higher than that in Xiangshan Bay and the content of nutrient in the Xiangshan Bay is higher than that in the Leqing Bay . The variation of the ratio of N/P is obvious. This reflects the aquatic chemical characteristics in the bay. Finally, this paper also discusses the reason why the aquatic chemical characteristics in the bays are unusual.

关键词： Study of aquatic chemical characteristic in some bays along the coastal region of Zhejiang Province Bay

A model of the formation and development of ocean shear wave

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Acta Oceanologica Sinica 1994年第3期13卷 345-359页

作者： Qiao Fangli and Zhang Qinghua(first institute of oceanography,state oceanic administration,P.O.Box 98,qingdao 266003,china)

From quasi-geostrophic vorticity equation, we simulate the formation of ocean shear wave in western boundary strong current area with the pseudospectral method, and idealize the initial velocity into hyperbolictangent velocity profile, with the unsteady little perturbation developed by means of getting energy from meanmotion. The change of isovorticity shows two vortexes merging or splitting between them. The evolving processof material lines reflects cold water's invading and warm water's turning, which is agreeable to satellite *** effect makes a new energy distribution in all kinds of motion scale. One important phenomenon is that Reynolds stress will change its sign when the perturbation amplitude is large enough.

关键词： Shear wave pseudospectral method large eddy simulation

Zonal discrepancy of iodine in the West Pacific Ocean and its adjacent seas

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Acta Oceanologica Sinica 1993年第3期12卷 405-415页

作者： Cheng Xianhao, Yu Guohui and Zhang Ping Second institute of oceanography state oceanic administration, Hangzhou 310012 china

The species of iodine in the water samples collected from the west Pacific Ocean and its adjacent seas were analysed. Results show that the concentration of total inorganic iodine appears higher in the south than that in the north of the Equator. The iodide concentration is distributed symmetrically on both sides of the Equator in tropic and subtropic zones and it decreases away from the Equator. Around the Antarctic Divergence iodide concentration approaches its minimum in the surface waters .which only accounts for 10% of the total iodine. The dissolved organic iodine concentration keeps constant generally either in horizontal or in vertical. Discussions on the relationships of iodine with chemical, biological and hydrological factors reveal that iodine has a transitional behavior between conservative and biodepleting elements; I/S ratio is of a certain stability on a vast scale, however, it may be largely affected by organism activity in some zones. Besides, evidence shows that iodine is adsorbed by organic particles in surface water but released as the remineral-ization of the organic particles occurs near the bottom of euphotic layer, which makes iodine look as if it is depleted by organisms like the nutrients.

关键词： West Pacific Ocean seawater iodine