摘要:The numerous Darwin’s harmonic constituents can be combined into four constituents O1, K1, M2, and S2,as Doodson did in [2] and [3]. The amplitudes and speeds of this sort of constituents are no longer unchangeable, and therefore these constituents are called “quasi-harmonic constituent” in the present paper. The major errors of the method suggested by Doodson are (a) to use right ascensions instead of longitudes,(b) to leave the parallax age out of consideration. In this paper, a method with higher accuracy is proposed and shallow-water quasi-harmonic constituents are introduced.
关键词:tides;Quasi-Harmonic Constituent Metho;analysis and prediction
摘要:The sonar equation for sub-bottom profiling measurement was introduced. Following this equation, some accoustic considerations about testing of profiling system were given. The system provides a sub-bottom profiling record with a higher resolution by using a “boomer” as source. It penetrates the un-consolidated sediment up to a depth of tens of meters.
摘要:The present paper is the second part of our studies on the planktonic copepods of the Yellow Sea and the East China Sea. Of the 66 species herewith described 32 are for the first time recorded from our waters (marked each with an asterisk in the list of species).
摘要:The present paper deals with the pelagic copepods collected during 1959-1960, chiefly from the northern part of the South China Sea ranging. from the Hsi-sha Islands to the coastal waters of Kwangtung and southern Fukien, including the surrounding waters of Hainan Island. Results of our systematic studies on the material obtained will be published in a series of paper. This is the first part of Calanoida, enumerating 48 species, belonging to four families, with 9 species of Calanidae, 11 species of Eucalanidae, 19 species of Paracalanidae and 9 species of Pseudocalanidae. Calocalanits monospinus of Paracalanidae is described as new to science and 9 other species (marked each with an asterisk in the list to species) are new records from China Seas.
摘要:This is the second part of a series of papers dealing with marine copepods of the South China Sea collected not far off the coast of Kwangtung Province. It comprises of 31 species of Calanoida, of which 8 species belong to two genera of the family Euchaetidae and 23 belong to 5 genera of the family Pontellidae. The majority of the species are tropical in nature, but 16 of them extend to the East China Sea, 11 to the southern Yellow Sea and only 4 are restricted to the South China Sea. A species of Pontellopsis is found to be new to science, and Pontellopsis macronyx A. Scott and Euchaeta spinosa Giesbrecht are for the first time recorded from the South China Sea. Besides descriptions of the above mentioned species, some supplementary notes for the males of Euchaeta wolfendeni A. Scott, Euchaeta longicornis Giesbrecht and Pontellopsis regalis (Dana), which have not been previously obtained from the East China Sea and the Yellow Sea (Chen & Zhang, 1965) are also given.
摘要:During 1971-1973 the present writer took part in the artificial culture of Chinese prawn Penaeus Orientalis Kishinouye in Jiaonan District, Shantung Province and found that several invertebrates are good basic food for the prawn. We were especially interested in a bottom dwelling form of amphipod Crustacean which is very abundant. It grows rapidly and has a short reproductive cycle.
After careful examination, the writer is certain that it is a new species belonging to the genus Corophium, Family Corophiidae (Amphipoda, Gammaridea). I designate it Corophium sinense sp. n.
The morphological characteristics of this species are presented in the following description.
关键词:Corophium;the Southern Coast of Shantung Peninsula