中国启动首次帆船环球航海公开招募60名船员

以＂海洋·海峡·海员＂为主题的2010年中国航海日庆祝大会7月11日上午在海峡西岸文化名城福建泉州隆重举行。来自全球30个国家和港澳台地区的5000多名嘉宾参加了盛会。     

海峡情——2010年中国航海日

<正>7月11日上午,随着全国人大常委会副委员长陈至立一声令下,2010年中国航海日庆祝大会在福建泉州海峡体育馆隆重开幕。本届航海日主题为"海洋·海峡·海员"。交通运输部部长李盛霖在致辞中说,今天既是大陆的航海日,也是台湾的航海节。在庆祝航海日的同时,我们也把深情     

兴海护海 舟行天下——第七届中国航海日活动在全国各地隆重举行

本刊讯(记者张涛)7月11日,2011年中国航海日庆祝大会在我国首个以海洋经济为主题的国家战略层面新区——浙江舟山群岛新区举行。这是继北京、上海、青岛、太仓、大连、泉州之     

2010年中国航海日庆祝活动在泉州隆重举行

<正>2010年中国航海日主会场庆祝活动7月11日在福建泉州海峡体育馆隆重举行,活动主题为"海洋·海峡·海员"。中共中央政治局委员、国务院副总理张德江发来贺信,全国人大常委会副委员长陈至立出席主会场活动,并宣布201 0年中国航海日庆祝活动正式启动。     

2009年航海日活动庆祝大会将在大连举行

2009年航海日活动庆祝大会将于7月11日在辽宁省大连市举行，活动主题为“庆祝新中国60周年·迎接航海新挑战”。 在4月26日举行的2009年中国航海日活动新闻发布会上，航海日活动组委会常务副主任、交通运输部副部长徐祖远表示，航海日作为我国海洋领域由政府主导、全民参与的全国性法定活动日，     

海洋·海峡·海员中国航海日庆祝大会在泉州举行

继2010年中国航海日珠江片区活动在广东珠海隆重举办后,7月11日上午,福建泉州,随全国人大常委会副委员长陈至立一声令下,2010年中国航海日庆祝大会继续存海峡体育馆隆重开幕.     

多姿多彩的“中国航海日”

南宁珠江片区2012＂中国航海日＂精彩纷呈以＂黄金水道·绿色水城·蓝色海洋＂为主题的2012年珠江片区＂中国航海日＂庆祝活动,于7月6日在广西首府南宁圆满落幕。广西壮族自治区副主席杨道喜、交通运输部安全总监宋家慧、交通运输部珠江航务管理局局长任建华、南宁市市长周红波等出席了当天上午的庆祝大会并致辞。     

中国航海日十年回顾

<正>2005年,国务院批准将郑和下西洋的首航日7月11日确定为我国的航海日,至今已十年整。十年来,中国航海日活动一路经历北京、上海、青岛、太仓、大连、泉州、舟山、南京,南通,日照,宁波等地,将"郑和精神"所凝聚的开放进取、经略海洋、和平友好、平等交流和敢为天下先的品质发扬光大。2005年,北京, 主题:"热爱祖国、睦邻友好、科学航海"2005年7月11日,首届中国航海日活动暨郑和下西洋600周年纪念大会在北京人民大会堂隆重举行,活动以"热爱祖国、睦邻友好、科学航海"为主题。来自全国航海界、海洋界、造船界和海军等代表出席庆祝大会。当天上午,中国籍民用船舶和由中国航运公司经营管理的非中国籍船舶鸣笛1分钟。     

海洋·海峡·海员中国航海日庆祝大会在泉州举行

继2010年中国航海日珠江片区活动在广东珠海隆重举办后，7月11日上午，福建泉州，随全国人大常委会副委员长陈至立一声令下，2010年中国航海日庆祝大会继续在海峡体育馆隆重开幕。中共中央政治局委员、国务院副总理张德江向大会发来贺信，航海日活动组织工作委员会主任、交通运输部部长李盛霖出席会议并致辞。     

2011中国航海日庆祝大会在浙江舟山举行

7月11日上午8点45分,以"兴海护海舟行天下"为主题的2011中国航海日庆祝大会在浙江舟山隆重举行。来自美国、希腊、葡萄牙等国家和港澳台地区、全国各地的2600多名嘉宾参加了盛会。大会在气势磅礴的《敬海·远航》歌舞情景演绎中拉开序幕。上午9点整,全国政协     

杭州余杭武林头水域交通流量调查

运用海上交通工程的基本理论,以对杭州市余杭区武林头水域进行的为期7天的水上交通流量统计为依据,得出武林头水域交通流特点,并在此基础上提出提高武林头水域安全通航的相应建议,即从自然条件、航道条件、船舶条件、交通条件和船员条件等5方面提高武林头水域通航安全。     

Sediment geochemistry and mineralogy in Milos bay, SW Kyklades, Aegean Sea, Greece

This work aims at studying the geochemistry and mineralogy of Milos bay surface sediments. The bay forms an enclosed marine area, supplied totally by volcanic formations. Totally 16 samples were subjected to sedimentological (grain size), mineralogical (microscope examination and X-ray diffraction of the bulk sample and the pelitic fraction), and geochemical analyses (X-ray fluorescence in the pelitic fraction). Also the carbonate content was determined. Sediments were sandy with a high carbonate content (14–58%). The dominant minerals recognized in the pelitic fraction were smectite, kaolinite and illite, followed by chlorite, quartz, calcite, Mg-calcite and feldspars. In general, element concentrations appeared to be within the normal range, except Pb and Zn, which exhibited relatively high values. The Index of Geoaccumulation I_geo was computed, in order to investigate a possible enrichment of the surface sediments in metals. The analysis revealed again high values of I_geo class for both Pb and Zn. A careful study of the area, in relation to the quality of the catchment basins petrology, lead to a non-anthropogenic origin of these high concentrations. The enrichment of the surface sediments in Pb and Zn is attributed to the weathering of several mineral deposits, pyroclastic rocks and lavas, covering almost all Milos vicinity. A study of the geochemical data correlation coefficient matrix revealed three major groups of elements: (i) the elements of detrital origin represented by Si, Al, K and a part of the metals; (ii) the carbonates group; and (iii) a Fe–Mn oxyhydroxides–oxides group, which attracts a part of Pb, Cr and Ni.     

Coastal Tourist Interest in Value-Added,Aquaculture-Based,Culinary Tourism Opportunities

Despite increasing focus on sustainable aquaculture investment in the U.S. coastal zones, the aquaculture industry continues to face skepticism among consumers due to perceived negative environmental impacts, and health and food safety concerns. Partnering with culinary tourism and local food promotion efforts has potential for improving public outreach about the benefits of aquaculture, especially in coastal destinations where sustainable marine aquaculture and tourism are both occurring. Culinary tourism implies that local foods reflect the local livelihood and culture, and may be important to the tourist's experience. Aquaculture is becoming increasingly valuable to coastal destinations for assuring the steady availability of local seafood to meet demand and retaining commercial fisheries as a means to differentiate themselves to tourists. This study examined the role of subjective knowledge and attitude about aquaculture, and their effect on intention to participate in value-added culinary aquaculture tourism experiences. The study found that tourists' subjective knowledge and attitude about aquaculture influenced intentions to participate in culinary aquaculture tourism. In order for farmers or tour operators to be successful in diversifying with value-added culinary aquaculture, attention needs to be paid to educating consumers, which may be possible through strategic partnerships with tourism organizations, chefs, and restaurants.     

Coastal Erosion in Ghana: Causes,Policies, and Management

Coastal erosion is a serious problem that affects the safety and livelihoods of many coastal dwellers along Ghana's coast. Despite the fact that coastal erosion is a natural phenomenon, erosion trends have been largely aggravated by human-induced factors. This study analyzed shoreline change rates for three neighbouring coastal communities in the Central region of Ghana; Elmina, Cape Coast and Moree. Two epochs were analyzed, 1974–2012 (medium-term) and 2005–2012 (short-term), using ArcGIS and Digital Shoreline Analysis System. Overall, the entire study area recorded average shoreline change rates of ?1.24 myear^?1 and ?0.85 myear^?1 in the medium-term and short-term period respectively. Less consolidated shoreline segments recorded higher erosion rates in both periods while cliffs and rocky segments experienced very little erosion or high stability. Because shorelines undergoing chronic erosion do not fully recover after short-term erosion events such as storms, facilities located close to such shorelines are threatened. Taking a proactive approach to coastal erosion management, such as coastal sand mining prevention, inter-sectoral land use management and adopting a construction setback approach may be prudent for the long-term management of the coast since this recognizes future shoreline changes and safeguards coastal landscape for other uses.     

Synoptic transects on the distribution of trace elements (Hg,Pb, Cd,Cu, Ni,Zn, Co,Mn, Fe,and Al) in surface waters of the Northern- and Southern East Atlantic

Surface seawater samples were taken in the framework of the GEOTRACES program on “POLARSTERN” expedition ANT XXIII/1 in the Eastern Atlantic in 2005 to study the distribution of the trace elements Hg (mercury), Pb (lead), Cd (cadmium), Cu (copper), Ni (nickel), Zn (zinc), Co (cobalt), Mn (manganese), Fe (iron), and Al (aluminium). With the exception of Hg, results were compared to earlier datasets from 1989 to 1990. The particulate fraction averaged over the transect was calculated to be 49% for Cd, 23% for Mn and 50% for Fe indicating a release of these TEI's (trace elements and their isotopes) from a leachable SPM fraction in the stored and acidified samples.Total Pb concentrations ranged between 5 and 20 pmol kg^? 1 in 2005 with highest values in the ITCZ (intertropical convergence zone). In 1989 Pb concentrations were twice as high in the region of the ITCZ, while by a factor of 10–15 higher values were obtained in the North Atlantic.Total Cd and Co are dominated, by different seasonal upwelling regimes (Equatorial upwelling, Guinea Dome, Angola Dome).Total Cu, Ni, Fe, Mn and Al show nearly identical concentrations in 1990 and 2005. For total manganese and aluminium strong maxima (3–4 nmol kg^? 1 and 55 nmol kg^? 1 respectively) are observed between 23°N and 0°, while the Fe maximum (6–9 nmol kg^? 1) is located at 7°N. Total Hg concentrations ranged between 0.5 and 4.5 pmol kg^? 1.     

江苏如东人工岛建设对周边水动力及泥沙冲淤的影响

在南黄海辐射沙洲这样一个水动力和泥沙环境都相当复杂的区域建设浅水人工岛,不仅要考虑人工岛本身的稳定型问题,还要深入地认识浅水人工岛建设引起的流场和泥沙冲淤是否造成目前潮流动力场和"水道—沙洲"系统格局的较大变异、自然演变的趋势性过程是否因人工岛建设而加速或逆转。通过整体潮流泥沙物理模型研究了西太阳沙人工岛工程对滩槽演变趋势的影响和工程区滩冲槽淤的短期波动,探讨了如东人工岛工程建设后,岛周围水动力和泥砂冲淤的变化规律,提出了相应的防冲措施。结果表明,拟建人工岛工程建设引起的水流动力变化主要在西太阳沙附近的浅水区,并局限在1.5倍人工岛直径范围内,对邻近水道深槽区的潮流动力没有影响。人工岛工程没有改变西太阳沙周边各水道潮流动力场格局,没有引致水道间潮流动力此消彼长的变化、未改变控制西太阳沙"水道-沙洲"系统演变的动力泥沙环境,西太阳沙核心部位的稳定主要取决于西太阳沙北侧潮流动力增强的自然演变过程。就人工岛建设而言,东北岛壁前沿有效的防冲护底措施对沙洲核心部位稳定和减少北水道深槽淤积泥沙来源均有积极意义。     

Hydrology, sediment yield, erosion and sedimentation rates in the estuarine environment of the Ria de Vigo, Galicia, Spain

The aim of this study is to provide a budget study with calculated erosion rates. Three methods have been used to calculate sediment yield and denudation rates in the Ria de Vigo: (1) measurements of sediment loads, (2) measurements of sediment accumulation rates at the coast, (3) theoretical calculations of potential denudation. Sediment loads and water discharge were measured over a period of 14 months from May 1997 to July 1998. Two of the tributaries entering the Ria de Vigo were monitored for 12 more months, from May 2000 to May 2001, to observe changes in discharge and sediment loads. This period corresponded with atypical precipitation, with peak monthly values (600 mm) three times higher than those on record.Water rating curves are typically exponential. Suspended and dissolved loads vary for different rivers, showing values of 1.5 to 130 mg/l during 1997/1998. For 2000/2001, these values are twice as high. Suspended load versus discharge relationships for 1997/1998 were logarithmic, but data from 2000/2001 does not fit the same equation. Dissolved loads are several times higher than suspended loads in almost all cases. Dissolved load concentrations vary more widely with discharge than suspended loads. This is probably due to local pollution and contamination from marine spray in areas closer to the sea.Second, erosion rates and bed load sediment yields were calculated from accumulation rates at the Ramallosa Complex. Well-preserved estuarine and tidal sediments, associated with the Minor River, have accumulated in this area during the Holocene. ¹⁴C ages allow calculation of sedimentation rates (SR) for two intervals. The lower interval extends from 2001 to 484 years BP and yields an SR of 1.12 mm/a. The upper interval extends from 484 years BP to the present and has an SR of 3.3–4.4 mm/a. These differences may be explained by basin dynamics as the beach progressively encloses the area and also by human interference. From sedimentary facies analysis it is concluded that 90% to 95% of the accumulated deposits were transferred to the basin as bed load. Muddy deposits (mostly marshes) are better developed at the upper part of the sediment pile, and inner areas, indicating a progressive shallowing and filling up of the basin. Most of suspended load is exported to the ria, whereas the Ramallosa Complex acts as a sediment sink for bed load derived material.Calculated potential erosion rates using Ahnert's [Am. J. Sci. 268 (1970) 243] equation show lower values than those estimated from river load concentrations. Potential erosion rates for the Minor River are higher than for the Lagares River which contrast with mechanical denudation rate values from river loads during 1997/1998 which are higher for the Lagares River. During 2000/2001 MDR values were higher than those of the potential erosion rates for both rivers, in line with the extremely high precipitation. Higher values in the Lagares could be in part due to human interference.     

Economic value of fish,wildlife, and recreation in Michigan's coastal wetlands

On the basis of annual expenditures by recreational participants and standard values of recreation days, as well as estimated sport and commercial harvests, the gross annual return from Michigan's 105,855 acres of coastal wetlands has been estimated. Analysis of fish, wildlife, and recreational values revealed that in 1977 these wetland areas generated an economic value of $489.69 per wetland acre, for a direct annual gross of $51.8 million. Specifically, these average return values per wetland acre/year, in descending order, are sport fishing ($286), nonconsumptive recreation ($138.24), waterfowl hunting ($31.23), trapping of furbearers ($30.44), and commercial fishing ($3.78). These gross annual return values were calculated in an effort to sensitize the general public to the diversity and possible magnitude of selected wetland functions.     

Particle flux, and composition of sedimenting matter, in the Greenland Sea

Vertical flux of particulate material was recorded with moored sediment traps during 1988/1989 in the Greenland Sea at 72°N, 10°W. This region exhibits pronounced seasonal variability in ice cover. Annual fluxes at 500 m water depth were 22. 79, 8.55, 2.39, 3.81 and 0.51 g m⁻² for total flux (dry weight), carbonate particulate biogenic silicate, particulate organic carbon and nitrogen, respectively. Fluxes increased in April, maximum rates of all compounds occurred in May–June, and consistently high total flux rates of around 100 mg m⁻²d⁻¹ prevailed the summer. The increasing flux of biogenic particles measured in April is indicative of an early onset of algal growth in spring. Small pennate diatoms dominated in the trap collections during April, and were still numerous during the high flux period when Thalassiosira species were the most abundant diatoms. During May–June, up to 22% of the Thalassiosira cells collected were viable-looking cells. The faecal pellet flux increased after the May–June event. Therefore we conclude that the diatoms settled as phytodetritus, most likely in rapidly sinking aggregates. From seasonal nutrient profiles it is concluded that diatoms contribute 25% to new production during spring and 50% on an annual basis. More than 50% of newly produced silicate particles are dissolved above the 500 m horizon. High new production during spring does not lead to a pronounced sedimentation pulse of organic matter during spring but elevated vertical export is observed during the entire growth period.