大力实行标准化养殖 促进渔业经济健康发展

荣成市是全省乃至全国县级第一渔业大市，三面临海，海岸线近千华里，浅海海域和滩涂１０多万公顷，与陆地面积相当，是耕地面积的２倍多。近年来，荣成市充分发挥这一得天独厚的自然条件优势，大力发展标准化养殖，全面提高水产品质量和产出效益，有力促进了渔业经济的持续快速健康发展。全市现有渔业企业４００多处，渔业资产近百亿元，渔工１０万人。去年，全市水产品总产量１１５万ｔ，水产品产值５４亿元（现价），渔业经济总收入１６８．８亿元，水产品产值、渔业经济总收入分别占农业总产值和农村经济总收入的７７％和４５％。 其中…     

海洋灾害系统研究及预测预报

一、海洋灾害系统研究的意义海洋灾害是全球性灾害,也是系统性灾害,在全部自然灾害中,海洋灾害系统占据70％。近年来,我国由于海洋灾害系统造成的直接经济损失达60亿元/年以上,1990年仅浙江省因台风灾害损失41亿元以上。随着经济的发展,受害程度亦将日益加重,研究、预报海洋灾害,把灾害程度降低到最低限度,是一项必要的、十分紧迫的任务。不同形式的海洋灾害(海面上升、风暴潮、地震、海啸、台风、巨浪、海雾、海冰、厄尼诺、新构造运动、海岸侵蚀、海底滑坡、海岸风沙、生物资源灾害以及由海洋灾害所衍生的陆地自然灾害),在超长期及中、短期形成过程中,不仅有时空上的连续、复杂的表现形式,又有成因上的内在联系。     

海岛调查档案超前控制质量管理与开发利用初探

海岛调查档案是指在海岛资源综合调查与开发试验活动中直接形成的,具有查考利用和保存价值的文字、图表、音像、软盘等形态的历史记录,是海岛调查的终端成果,是花费了大量资金、人力、物力换来的宝贵财富。     

海洋结构地震响应及参数的影响

本文采用自由度凝聚方法和响应谱方法分析海洋导管架式固定平台的动力特性及其地震响应,还初步考察了桩基刚度、平台荷重分布等参数变化的影响。此外,本文还对堆聚质量法和自由度凝聚法计算的结果进行了比较。     

热线流速仪的理论和原理

热线流速仪因其检测元件小、热惯性小、频响快、灵敏度高、分辨率好、对流体干扰小,能测量动态随机变量,已成为流体流动机理定量研究的主要量测仪器之一,本文论述热线流速仪的理论、原理以及热线探针的构造等。     

一种新型经济海藻--冈村枝管藻

介绍了1种新型经济海藻冈村枝管藻。阐明了引进新型经济海藻，对进一步发展我国海藻栽培业的经济意义和生态意义，综述了该物种的生物学特性、栽培和加工情况、应用价值，以及作者在这方面初步的研究工作，并展望了在我国发展枝管藻栽培业的前景。     

江苏省射阳经济开发区与创业者同创伟业业

江苏省射阳经济开发区位于射阳县城东部，与射阳岛公园、国际高尔夫球场、射阳港港口、射阳港电厂连成一线。规划面积１１８ｋｍ２，启动区４５ｋｍ２。建区７年来，射阳经济开发区努力创造自身局部优势，坚持滚动发展策略，已完成启动区和县城过渡带３５ｋｍ２的“五通一平”，能够满足多种类型项目进区的需要。目前在区工业企业已达６７家。——日臻完善的基础设施基础设施是开发区招商的物质保证。几年来，我们坚持集中规划、适度超前的原则，努力提高资金的投入效应，提高基础设施配套水平，走出了一条“区中建园”的运作模式。●…     

Freshening of the Intermediate Waters in the Northern South China Sea over the PastSix Decades

The properties of salinity in the South China Sea (SCS), a significant marginal sea connecting the Pacific andIndian Oceans, are greatly influenced by the transport of fresh water flux between the two oceans. However, the long-termchanges in the intermediate water in the SCS have not been thoroughly studied due to limited data, particularly in relationto its thermodynamic variations. This study utilized reanalysis data products to identify a 60-year trend of freshening in theintermediate waters of the northern South China Sea (NSCS), accompanied by an expansion of low-salinity water. Thestudy also constructed salinity budget terms, including advection and entrainment processes, and conducted an analysis ofthe salinity budget to understand the impacts of external and internal dynamic processes on the freshening trend of theintermediate water in the NSCS. The analysis revealed that the freshening in the northwest Pacific Ocean and theintensification of intrusion through the Luzon Strait at intermediate levels are the primary drivers of the salinity changes inthe NSCS. Additionally, a weakened trend in the intensity of vertical entrainment also contributes to the freshening in theNSCS. This study offers new insights into the understanding of regional deep sea changes in response to variations in boththermodynamics and oceanic dynamic processes.     

Irish on the move

Trends in emigration from Ireland over time are reviewed. "During the eighteenth and nineteenth centuries overseas migration to the United States and seasonal harvest migration to Britain were the main types of movement, but over the past 100 years the Irish have developed a special affinity for settling in British towns. Although the outflow was halted for a time during the 1970s, when return migration took over, the 1980s have seen a renewal of the exodus. This time, however, the character of the flow has changed from predominantly low-skill construction and factory workers to embrace better-educated emigrants, including many graduates. This shift reflects Ireland's changing position in the international market for labour."     

Shock chemistry in the molecular clouds associated with SNR IC 443

Several interstellar molecules have been detected toward the highly perturbed B and G clouds associated with the supernova remnant IC 443 via their 3 mm transitions, including N2H+, SiO, SO, CN, HNC, and H13CO+. The (J, K) = (1, 1) and (2, 2) inversion lines of metastable ammonia have also been observed, as well as the J = 3-2 transition of HCO+ at 1.2 mm. Analysis of the (1, 1) and (2, 2) inversion lines of NH3 indicates minimum gas kinetic temperatures of TK = 70 K toward cloud B, and TK = 33 K in cloud G. Modeling of the J = 1-0 and J = 3-2 transitions of HCO+ implies densities greater than 10(5) cm-3 toward both positions. These data clearly show that hot and dense material is present in IC 443, and they suggest the presence of shocks in both regions. A careful analysis of the HCO+ lines indicates that the HCO+ abundance is at most enhanced by factors of a few over that found in cold, quiescent gas. This conclusion contradicts past claims of HCO+ abundance enhancements of several orders of magnitude in the perturbed regions. The N2H+ abundance was also found to be similar to that in cold gas, suggesting that there is no increase in ionization in the clouds. The abundances of SO and CS, as well as CN and NH3, do not appear to differ significantly from those found in cold dark clouds, although chemistry models predict sulfur-containing species to undergo high-temperature enhancements. SiO, however, is found to have an abundance in the perturbed gas 100 times larger than the upper limits observed in the dark cloud TMC 1, a result in agreement with high temperature chemistry models. In addition, the HNC/HCN ratio in both IC 443 B and G was found to be approximately 0.1--far from the ratio of 1 predicted by low-temperature ion-molecule chemistry, but similar to the values observed in clouds where elevated temperatures are present.