Abstract:The biological study the aimed at stock of the Hemirhamphus sajori was carried out and supported by the samples of the commercial catch from the coastal waters of Qingdao. The result showed that there was more male (68%) in the catch, the age composition was mainly 1-2, and the fecundity was 290-4004 eggs/ind. The stock was in overfishing.

Abstract:Stock assessment and catch predicition of the filefish, Thamnaconus septentrionalis,have been carried out for more than 10 years by using Virtual Population Analysis (VPA) with the help of microcomputer. With the development of microcomputer technology,the assessment method was also improved. The results from practice showed that the present work is useful to both fishing industry and fishery management.

Abstract:通过静水试验法，用甲醛对中华绒螯蟹各期状幼体及隐藻进行急性毒性试验，结果分别为：Z1：24hLC50为41．214mg／L，48hLC50为33．364mg／L，SC为3．34mg／L。Z2：24hLC50为125．497mg／L，48hLC50为54．258mg／L，SC为5．43mg／L。Z3：24hLC50为143．617mg／L，48hLC50为93．817mg／L，SC为9．38mg／L。Z4：24hLC50为200．679mg／L，48hLC50为98．414mg／L，SC为9．84mg／L。甲醛对Z5的毒性状况比较特殊，虽经10次试验仍无规律性。试验表明，30mg／L以下的甲醛，24小时内波海红胞藻全部成活，甲醛对波海红胞藻的6hLC50为：90mg／L，12hLC50为：60．77mg／L，24hLC50为：57．5mg／L。一定浓度的甲醛可杀死苗池水中的赤潮生物，蓄水池中的赤潮生物可用含氯化合物杀灭，以降低赤潮生物对中华绒螯蟹幼体的毒性，提高幼体的变态成活率和育苗产量。

Abstract:本试验采用鱼类生物能量学的方法，对花鲈个体水平上的能量转换进行了研究。提出了不同温度、不同盐度条件下花鲈能量收支的实验方程，结果表明：盐度对大规格花钙鱼种能量收支各组分的影响大于温度；花鲈夏花鱼种和大规格鱼种分别在盐度５和１０时能获得最佳能量分配模式；温度对大规格花鲈鱼种的能量收支各组分的分配比例影响不大，在水温１５－３０℃范围内，其平均能量收支式为；１００℃＝１．７７３Ｆ＋１．１３５Ｕ＋４０．３

Abstract:本文研究了广东鲂人工繁殖的鱼苗在池塘育成亲鱼的方法，用ＬＲＨ－Ａ２与ＤＯＭ混合催们效果最优，人工授精的关键是效应时间的掌握，本研究提出广东鲂最小性成熟年龄为２龄，属一年我次产卵鱼类，可进行一次２次性成熟产卵，胚胎发育程序与家鱼基本相似，胚胎发育最适水温范围约为２４－２８℃，临界水温上、下限分别为３１℃和２０℃。

Abstract:The bacteriostatic effect of both free and combined bile salts from grass carp bile was studied in this paper. The experimental results show that both salts remarkably exerted their bacteriostasis to three species of such Gram positive bacteria as Staphylococus aureus,Sarcina lutea and Bacillus subtilis. The combined salt was quite similar to cow bile salt cultured in lactose bile medium, which showed bacteriostasis to Gram positive bacteria, but not to Gram negative ones like Bacillus coli. As to the free bile salt, it was similar to deoxycholic acid in GN-enriched medium and showed bacteriostasis to Gram positive bacteria, but no effect on the growth of Shigella dysenteriae.

Abstract:The clinical practice of chondroitin sulfate such as its therapeutic or inbibition effects on hearing barier, tumor and diseasses of liver, kidney, cardiovascular system and eyes was approached in this paper. In addition, in order to meet the required standard the redevelopment and processing technique of chondroitin sulfate are discussed in the selection of proper processing flow, control of temperature, purification of product, etc.

Abstract:The accuracy inspection criterion of the result of launching the guided missile is discussed in this paper. And a five circles inspection plan with sequential quantity being three is obtained on the basis of the method of sequential sampling inspection. And charactersitic of this plan is to bring the in formation got from every test into fully plan and to make the maximum average inspection measurements less than the existing double circless and three circles inspection plans so as to reduce the damage resulted from the inspection.