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厦门海域赤潮现状与对策 总被引:1,自引:0,他引:1
厦门地处我国东南沿海——福建省东南部、九龙江入海处,西部与漳州毗邻,北接泉州,东南与金门岛隔海相望.厦门海域环绕厦门岛,主要由同安湾、西海域、东部海域组成,其中同安湾与厦门西海域由高集海堤隔开,并通过一闸口相连.近五年来,发生在厦门海域的赤潮呈多元化的趋势,以前从来没有出现过的冬季赤潮接连发生,引起赤潮的赤潮生物种类也不断出现以前未引起过赤潮的种类.
厦门海域的赤潮研究已有较多报道,但近五年来有关赤潮的研究报道较少,特别是没有较系统介绍近几年赤潮现状的报道.本文通过近五年厦门海域赤潮的发生情况,详细地分析赤潮现状并提出对策,以期为实现厦门海域赤潮研究和控制,海洋保护和管理,改善海洋环境提供科学依据. 相似文献
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本文运用2008年7月大小潮期间,厦门东、西海域海洋环境监测资料对该海区进行现状分析,并运用BP人工神经网络方法对该海域的海洋环境进行综合评价,结果表明:厦门西海域北部海域、同安湾、厦门西海域南部海域海水水质总体良好,除无机氮、磷酸盐(个别站位)超标外,其余监测指标均符合相应海水水质标准.综合评价分析表明:大潮期间厦门高集海堤两侧海域水质综合环境差异性明显,西海域的水质情况较为稳定,同安湾大小潮间差异较大;海堤打开后,势必会打破已趋于稳定的西海域生境.建议在海堤开口初期加强同安湾陆源污染物排放的监管与敏感生物的保护. 相似文献
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通过2016年8月开展的厦门海域表层沉积物中石油类含量调查,分析了厦门海域表层沉积物石油类的含量水平与分布情况。结果表明:本次调查厦门海域表层沉积物中石油类含量范围在(6.6~1 762.5)×10~(-6)之间,平均值为350.5×10~(-6);石油类含量呈现明显的分布特点:五缘湾海域至五通湾口区域的石油类含量最高,其次为九龙江口中部海域、鼓浪屿东南侧至招银港区、厦门东部水道小部分区域和五通湾口北侧海域,其余海域的沉积物质量较好,这与厦门近年来航运发展、西海域整治和五缘湾海域周边的开发建设有关。 相似文献
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ECOMSED模式在厦门湾海域潮流场模拟中的应用 总被引:3,自引:0,他引:3
本研究基于ECOMSED模式,引入变边界技术,建立厦门湾三维动边界潮流模型,以模拟具有大面积滩涂的厦门湾水动力过程.模型综合考虑九龙江上游径流和M2,S2,N2,K1,P1,O1等6个主要分潮的作用,对整个厦门湾及其毗邻海域进行了一个多月的模拟,最后将模拟结果与实际观测资料进行对比验证,结果表明本研究所建立的模型可以较好地反映厦门湾海域的潮流运动过程,为进一步研究河口海湾地区提供了可靠的技术基础. 相似文献
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近年福建海域赤潮的特点及防治对策 总被引:6,自引:3,他引:6
赤潮是由小型的浮游植物、浮游动物和原生动物大量繁殖和聚集引起的。引发赤潮的浮游生物有数十种,每种不同赤潮生物引起的赤潮,其特点和所需的环境条件都有差异。必须对我省的主要赤潮生物的生态习性利大量繁殖的规律,逐一进行研究,才能预测预报赤潮,减轻赤潮火害。自祸建省海洋与渔业局成立以米,赤潮监控已成为海洋环境保护和减灾防灾的重点,目前闽尔四(石霜)海域、三沙湾、厦门湾已列入赤潮重点监测海域,其它海域也全面开展赤潮监视监测,努力减轻赤潮灾害。全省有福建省渔业环境监测站、厦门海洋环境监测中心站、宁德海洋环境监测站、宁德海洋与渔业环境监测站、闽东海洋环境监 相似文献
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从2007年3月至2008年2月,对厦门海域的同安湾和九龙江河口的溶解氧进行每30 min的连续监测。结果表明,厦门海域的溶解氧含量随潮汐的运动表现出很强的规律性。其表现形式有双峰双谷、单峰单谷和双齿状特征,特别是溶解氧随潮汐下降的过程中回带现象明显。从湾内和河口的统计比较看,湾内的溶解氧日平均含量高于河口3.2%,而日差平均值低河口26.4%。 相似文献
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人工鱼礁建设是指在自然海区营造适宜于水产经济生物生长繁殖的环境,从而吸引野生或人工放养的海洋生物定居,促进水生生态系统健康发展与海洋渔业资源的增殖与养护。青岛崂山湾公益性人工鱼礁区位于崂山湾南部海域,建设周期三年(2012年~2015年),工程建设采用了混凝土和废旧渔船两类鱼礁体,共建设三处人工鱼礁群,每处人工鱼礁群使用海域200 hm2。项目建设期间需要采取多项安全防治和环保治理措施,后期管理工作也要同步展开。该项目建成后具有显著的生态效益、经济效益和社会效益,并将为修复海洋生态环境和渔业资源、发展生态休闲渔业、实现渔业可持续发展发挥重要的促进作用。 相似文献
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福建近海若干个拟投放深水网箱海湾理化环境调查与评估 总被引:1,自引:0,他引:1
根据2000和2001年福建主要港湾调查所获得的海洋水文和海洋化学环境资料,对拟投放深水抗风浪网箱海域的海水理化因子作了较详细的分析研究,以评估该海域是否适合于投放深水网箱。结果表明,三都澳、官井洋、东吾洋、罗源湾、福清湾、兴化湾,湄州湾和东山湾水深在25m以上,湾外有岛屿屏障,环境隐蔽、水流稳定,水温、盐度和透明度有显著的季节变化,pH和DO符合国家渔业水质标准,COD一般符合一类海水水质标准,局部海域达到二类海水水质标准,IN、PO3-P一般符合二类海水水质标准,在秋季有些港湾达到三类海水水质标准。从理化环境的角度分析,上述海湾可作为投放深水网箱之场所。 相似文献
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The types of pressures evident in coastal regions are typified by the Jervis Bay region in south-eastern Australia which, despite a long history of human occupation, remains largely undisturbed. How much longer those values and the ecological processes which sustain them will remain viable is questionable. This paper describes the development of a conservation management strategy which sought an integrated approach to management of the terrestrial and marine resources of the Bay region. A geographical information system (GIS) was developed for the region, using the raster-based E-RMS GIS software system. A continuum of conservation management options for the region was defined, ranging from no change to the presently limited protected area system (which covers only 7.5% of the region), to almost complete reservation. The preferred option, known as the Jervis Bay Conservation Zone, was derived using a landscape ecology approach. This involves a coordinated approach to conservation management by private and public agencies and individuals, with variable levels of control on the use of core habitat and adjacent land/sea areas. Three specific findings of relevance to the management of coastal aquatic resources elsewhere were that (1) traditional ‘reservation-based’ approaches to conservation management in isolation are not likely to be effective in conserving biodiversity over time; (2) the planning process should be open for review by non-technical audiences to facilitate community understanding and support; and (3) GIS can be a very useful tool for data organization and analysis. 相似文献
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海域使用论证中,用海范围界址点的测量成果是海域使用者合法利益的保障基础,也是海洋管理部门管理海域的重要依据,因此必须认真对待用海面积测量和计算过程中遇到的相关问题。本文在总结海域使用宗海界址点野外实测的一些经验,特别是根据实际情况界定海岸线。在实测的基础上,对内业工作常见问题进行分析,重点讨论了坐标转换的三种参数转换方法,并对其计算结果进行比较分析,最后得到适合海域使用论证面积测算的系统方法。 相似文献
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Sea lice treatments, management practices and sea lice sampling methods on Atlantic salmon farms in the Bay of Fundy, New Brunswick, Canada 总被引:4,自引:0,他引:4
Proper monitoring of all stages of sea lice is imperative to ensure the strategic timing of treatments. Although sea lice receive close attention and management for production purposes, there are no regulations for the reporting of lice burdens on salmon farms in Atlantic Canada, nor are there officially standardized protocols for conducting sea lice counts in the field. The purpose of this study was to complete a survey of Atlantic salmon farms in the Bay of Fundy, NB, Canada. The survey addressed many aspects of sea lice monitoring and control, including methods for sea lice sampling at the site, types of treatments administered for control of sea lice and management practices and decisions regarding the control of sea lice. A total of 83 surveys were completed from July to December 2002. Twelve of the 60 respondents owned and/or operated more than one site and completed a survey for each of their sites at the time of the interview. The position of individuals surveyed included 48 site managers (representing 63 sites), three site owners (representing 11 sites), eight individuals who were both owner and manager (representing nine sites) and one site veterinarian (representing one site). Surveys were completed on 30 sites from the Limekiln Bay and surrounding areas, 23 sites from Grand Manan Island, 18 sites from Deer Island, six sites from Campobello Island and six sites from Passamaquoddy Bay. Fish farmers, in concert with their veterinarians, generally perform intensive monitoring and control practices. However, there is a continued reliance on emamectin benzoate (SLICE®) for sea lice control on Atlantic salmon farms in the Bay of Fundy, which raises concerns regarding the potential for sea lice to develop resistance to the drug. 相似文献