筑巢引风地生金

近年来，江苏省金桥盐业有限公司徐圩盐场勇立潮头，敢为人先。抢抓机遇．硕果累累。全场通过3年的开发建设．现己建成对外招商引资窗口——张港海水养殖高新技术开发区，拥有标准化养殖池300余块，净养殖面积达0．1万hm^2.     

实施“四大创新”战略 推动金桥盐业跨越发展

江苏省金桥盐业有限公司是1998年由江苏省盐业集团公司投资成立的国有独资公司,以海水制盐、水产养殖、盐化工为主业．集工农经贸为一体。公司下辖5个盐场和8个直属单位，分布于连云港市两区两县．总面积360km^2。全公司1．8万余名职工.     

江苏盐场现阶段水产养殖模式探讨

为适应市场经济发展要求，近年来，江苏盐业实施了大规模的以退盐转养为主要内容的产业结构调整。目前已拥有3．3万hm^2余的水产养殖面积，其中制盐生产单元内初级蒸发区改造的养殖池近0．87万hm^2。，产盐工人每人都有一块1．3hm^2余的养殖池塘，     

盐场改制中的历史变迁

江苏省金桥盐业有限公司,是在盐业改革的浪潮中诞生的一家国有独资大中型企业。该公司北起海州湾．南至灌河口,拥有360km^2的土地,1.8万名员工,固定资产6.18亿元．注册资本3.45亿元,是江苏省盐业集团有限责任公司中最大的子公司。     

舟山提出2000年渔业发展目标和措施

到2000年舟山渔业发展的目标是:水产品总产量达到120万吨;年平均递增9％;其中养殖产量达到5.5万吨,比1994年翻一番以上;渔业总产值达到87亿元,年平均增长20％;水产品出口创汇     

渔业结构调整看城阳

一、海洋与渔业是城阳区大农业的重头戏城阳区是1994年青岛市行政区划后成立的新区,地处青岛近郊,胶州湾北岸,是青岛市的城乡结合处,域内交通发达,经济实力雄厚,流亭国际空港、济青、青银、环胶州湾高速公路及胶济铁路纵横交错,加之青岛港、黄岛前湾港等港口,构成了陆海空立体交通网络,地理条件十分优越。全区海岸线长78km,浅海滩涂总面积1.07万hm2,辖5处渔业街道,共有渔民3万余人。2002年,全区水产品总产量达到30.6万t,实现产值16.8亿元,占全区大农业的60%以上,渔业二、三产总产值达45亿元,出口创汇2.8亿元。城阳区已开发养殖面积0.8万hm2…     

城阳区水产品加工业优势明显、作用突出

青岛市城阳区充分发挥当地资源、人才、交通、技术、资金、区位优势，积极搞活、搞大水产品加工业，优势越来越明显，作用越来越突出，己成为带动城阳区农产品加工业快速发展的中坚力量。2007年1月至6月，规模以上水产品加工业企业完成总产值53．1亿元，占全区规模以上农产品加工业总产值的80．1％；实现销售收入40．2亿元，占规模以上企业销售收入的79．3％；[第一段]     

关于加强南通市海水养殖污染控制的思考

改革开放20余年来,江苏省南通市海水养殖业发展迅速,尤其是自20世纪90年代以来,海水养殖发展更为迅猛,海水养殖面积从1990年的3.67万hm2发展到2002年的6.67万hm2,产量也由1990年的1.75万t增加到2002年的14.64万t。目前,海水养殖已成为全市海洋经济的重要组成部分,成为沿海地区农业(渔业)结构性调整的重要手段。然而南通市在海水养殖发展进程中也经历了不少挫折,如1993年全国中国对虾疾病流行,直接经济损失35亿元以上,南通市的中国对虾养殖当年也几乎绝收,至今海水对虾养殖也未能恢复,不管哪种对虾都未能形成海水规模化养殖。近几年,南通市沿…     

深入贯彻落实科学发展观 不断开创海域管理的全新局面

过去的一年,在国家加强宏观调控和沿海地方经济迅速发展的大背景下,全国的海域管理工作以贯彻落实科学发展观和构建社会主义和谐社会为指针,以配套法规和技术支撑两大体系建设为基础,以加强养殖用海和同填海管理为重点,各项工作都取得了重大进展。全国共颁发海域使用权证书6037本,确权海域面积24．46万hm^2,其中江苏、山东、辽宁三省确权海域面积都超过4万hm^2。全国共征收海域使用金29．59亿元,其中广东、山东、辽宁、江苏、福建、浙江等六省海域使用金都超过3亿元。     

推行标准化养殖 促进渔业经济健康发展

荣成市是山东省乃至全国县级第一渔业大市，三面临海，海岸线近５００km，浅海海域和滩涂超过１３万ha，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…     

中国鱼类名录Ⅻ--鳚亚目、(鱼衔)亚目、喉盘鱼亚目、鰕虎鱼亚目、微体鱼亚目、刺尾鱼亚目、带鱼亚目、鲭亚目、鲳亚目、金枪鱼亚目、攀鲈亚目、刺鳅亚目

鳚亚目 4 科 33 属 95 种，鰕虎鱼亚目 5 科 98 属 259 种，刺尾鱼亚目 5 科 11 属 65 种，鲈形目 19亚目 104 科 535 属 1799 种。     

The distribution of Mn,Fe, Cu,Ni, Co,Ga, Cr,V, Ba,Sr, Sn,Zn, and Pb,in some soil-sized particulates from the lower troposphere over the world ocean

Soil-sized particulates have been collected on board ship by a mesh technique from the lower troposphere of the North, Equatorial and South Atlantic Ocean, northern and southern Indian Ocean, South and East China Sea and various coastal localities.Spectrographic analysis reveals that, on average, the particulates have concentrations of Mn, Ni, Co, Ga, Cr, V, Ba, and Sr which are of the same order of magnitude as those in average crustal material. In contrast, the average concentrations of Pb, Sn, and Zn are one order of magnitude higher than those in average crustal material.Within this “world-wide” average there are significant geographical variations in the distributions of Pb, Sn, and Zn which may be related to anthropogenic sources.On the basis of trace-element distributions lower tropospheric soil-sized marine particulates have been divided into four genetic components; local, zonal, inter-zonal, and global. The proportions of these components vary geographically, and each component may have both a natural and an anthropogenic fraction.     

Distribution, abundance, and growth of larval tautog, Tautoga onitis, in Buzzards Bay, Massachusetts, USA

Tautog, Tautoga onitis, is an abundant species of fish in estuaries of the northeastern United States. Planktonic tautog larvae are abundant in summer in these estuaries, but there is little information on rates of growth of tautog larvae feeding on natural assemblages of food in the plankton. We examined abundance and growth of larval tautog and environmental factors during weekly sampling at three sites along a nearshore‐to‐offshore transect in Buzzards Bay, Massachusetts, USA during summer 1994. This is the first study of a robust sample size (336 larvae) to estimate growth rates of field‐caught planktonic tautog larvae feeding on natural diets, using the otolith daily‐growth‐increment method. The study was over the entire summer period when tautog larvae were in the plankton. The sampling sites contrasted in several environmental variables including temperature, dissolved oxygen (DO), and chlorophyll a concentration. There was a temporal progression in the abundance of tautog larvae over the summer, in relation to location and temperature. Tautog larvae were first present nearshore, with a pronounced peak in abundance occurring at the nearshore sites during the last 2 weeks in June. Larvae were absent at this time further offshore. From late June through August, larval abundance progressively decreased nearshore, but increased offshore although never approaching the abundance levels observed at the nearshore sites. The distribution and abundance of tautog larvae appeared to be related to a nearshore‐to‐offshore seasonal warming trend and a nearshore decrease in DO. Otoliths from 336 larvae ranging from 2.3 to 7.7 mm standard length had otolith increment counts ranging from 0 to 19 increments. Growth of larval tautog was estimated at 0.23 mm·day^?1, and length of larvae prior to first increment formation was estimated at 2.8 mm indicating that first increment formation occurs 3–4 days after hatching at 2.2 mm. Despite spatial and temporal differences in environmental factors, there were no significant differences in growth rates at any of three given sites over time, or between sites. Because larval presence only occurred at a narrow range of temperature (17–23.5 °C) and DO (6.5–9.3 mg·l^?1), in situ differences in growth did not appear to be because of differences in larval distribution and abundance patterns relative to these parameters.     

The behavior of Zn,Cd, Cu,Ni, Co,Fe, and Mn in anoxic baltic waters

In June 1981, dissolved Zn, Cd, Cu, Ni, Co, Fe, and Mn were determined from two detailed profiles in anoxic Baltic waters (with extra data for Fe and Mn from August 1979). Dramatic changes across the O₂H₂S interface occur in the abundances of Cu, Co, Fe, and Mn (by factors of ?100). The concentrations of Zn, Cd, and Ni at the redox front decrease by factors between 3 to 5.Equilibrium calculations are presented for varying concentrations of hydrogen sulfide and compared with the field data. The study strongly supports the assumption that the solubility of Zn, Cd, Cu, and Ni is greatly enhanced and controlled by the formation of bisulfide and(or) polysulfide complexes. Differences between predicted and measured concentrations of these elements are mainly evident at lower ΣH₂S concentrations.Cobalt proved to be very mobile in anoxic regions, and the results indicate that the concentrations are limited by CoS precipitation. The iron (Fe²⁺) and manganese (Mn²⁺) distribution in sulfide-containing waters is controlled by total flux from sediment-water interfaces rather than by equilibrium concentrations of their solid phases (FeS and MnCO₃). The concentrations of these metals are therefore expected to increase with prolonged stagnation periods in the basin.     

Arsenic,barium, germanium,tin, dimethylsulfide and nutrient biogeochemistry in Charlotte Harbor,Florida, a phosphorus-enriched estuary

Concentrations of dissolved nutrients (NO₃, PO₄, Si), germanium species, arsenic species, tin, barium, dimethylsulfide and related parameters were measured along the salinity gradient in Charlotte Harbor. Phosphate enrichment from the phosphate industry on the Peace River promotes a productive diatom bloom near the river mouth where NO₃ and Si are completely consumed. Inorganic germanium is completely depleted in this bloom by uptake into biogenic opal. The $\text{Ge}\text{Si}$ ratio taken up by diatoms is about 0·7 × 10^?6, the same as that provided by the river flux, confirming that siliceous organisms incorporate germanium as an accidental trace replacement for silica. Monomethylgermanium and dimethylgermanium concentrations are undetectable in the Peace River, and increase linearly with increasing salinity to the seawater end of the bay, suggesting that these organogermanium species behave conservatively in estuaries, and are neither produced nor consumed during estuarine biogenic opal formation or dissolution. Inorganic arsenic displays slight removal in the bloom. Monomethylarsenic is produced both in the bloom and in mid-estuary, while dimethylarsenic is conservative in the bloom but produced in mid-estuary. The total production of methylarsenicals within the bay approximately balances the removal of inorganic arsenic, suggesting that most biological arsenic uptake in the estuary is biomethylated and released to the water column. Dimethylsulfide increases with increasing salinity in the estuary and shows evidence of removal, probably both by degassing and by microbial consumption. An input of DMS is observed in the central estuary. The behavior of total dissolvable tin shows no biological activity in the bloom or in mid-estuary, but does display a low-salinity input signal that parallels dissolved organic material, perhaps suggesting an association between tin and DOM. Barium displays dramatic input behavior at mid-salinities, probably due to slow release from clays deposited in the harbor after catastrophic phosphate slime spills into the Peace River.     

Cadmium,cobalt, copper,iron, lead,nickel and zinc in Indian Ocean water

Results of trace-metal analyses of water samples obtained during a cruise with the Soviet R.V. “Akademik Kurchatov” in the Indian Ocean are presented. The determinations were performed on board with atomic absorption spectrophotometry after a two-stage dithiocarbamate—Freon extraction procedure. Trace-metal concentrations found are in the same range as those found recently for similar open-ocean areas by other workers. The values for lead and zinc are probably high due to contamination. Vertical profiles indicate biogenic processes as controlling factors for the increase of cadmium, copper and nickel concentrations with depth. Iron shows an irregular depth distribution as a result of large random variations in concentration.     

Northstar-Geology,Exploration History,and Development Status,Beaufort Sea,Alaska

Exploration for oil at Northstar has been long and costly. Northstar leases were first acquired in 1979 at a joint state and federal sale by Shell Oil, Amerada Hess, and Texas Eastern. The Northstar Unit is 6 mi offshore and about 4 mi northeast of the Point McIntyre Field. Oil was first discovered in Shell's Seal Island 1 in 1983. Five additional appraisal wells were drilled (1983-1986) from two man-made gravel islands in 40 ft of water. Early engineering estimates put the cost of development at $ 1.6 billion. In February 1995, BP Exploration (Alaska) acquired a 98 % interest in the Northstar Unit from Amerada Hess and Shell Oil. When developed by BP, Northstar will be the first oil produced from federal leases in Alaska. To date, the oil industry has invested in excess of $ 140 million in exploration and appraisal operations. An additional $ 90 million was spent on lease bonus bids. The giant Prudhoe Bay and Kuparuk Fields lie along the Barrow Arch. This arch is bounded to the north by a rift margin that deepens into the present-day offshore region. Northstar is located among a series of down-stepping faults off this northern rift margin of the Prudhoe Kuparuk high. The structure is a gently south-dipping northwest-trending faulted anticline. The crest of the structure is located near 10,850 ft subsea. The primary reservoir is the Ivishak Formation (325 ft thick) of the Sadlerochit Group. This is the same primary reservoir at Prudhoe Bay, approximately 12 mi to the south. At Northstar the Ivishak is a high-energy, coarse-grained conglomeratic facies of the Ivishak Formation. The primary lithology is a pebbly chert to quartz conglomerate with occasional sandstone. This very high net to gross reservoir appears to contain no regionally continuous permeability barriers. Cementation has reduced primary porosity to less than 15 %. Accurate porosity estimates are difficult to make due to the coarse-grained nature of the lithology and the presence of kaolinite and microporous chert. Permeability is highly variable, but averages 10 to 100 mDarcies. Oil is a very light and volatile 42 API crude with approximately 2,100 ft3 of gas per stock tank barrel of oil. This oil is very different from the heavier oils (26) found to the south in Prudhoe Bay. Estimated recoverable oil reserves range from 100 to 160 million barrels. A free-standing drilling rig is required at Northstar because the reserves are beyond extended-reach drilling techniques from shore-based facilities. The current development plan is to expand the existing Seal Island to about 5 acres. This is significantly less than Endicott's 40-acre island. The proposed drilling and produc tion island will be accessed by summer barges and winter ice roads. Oil, gas, and water will be processed at a stand-alone facility and then sent to shore via a subsurface pipeline. Northstar will have the first Arctic subsea pipeline in Alaska to transport oil to shore facilities (TAPS). Preliminary tests in Spring 1996 were very successful in demonstrating the technology to successfully bury a subsea pipeline safely in the Arctic.