Comparison between zooplankton data collected by the Continuous Plankton Recorder survey in the English Channel and by WP-2 nets at station L4, Plymouth (UK)     

Eurgain H. John  Sonia D. Batten  Roger P. Harris  Graeme C. Hays 《Journal of Sea Research》2001,46(3-4)

Zooplankton sampling has been carried out by the Continuous Plankton Recorder (CPR) survey since the 1930s enabling the study of long-term changes in plankton populations, the elucidation of seasonal patterns of abundance, and more recently providing zooplankton biomass estimates for ecosystem models. Data for zooplankton abundance collected by CPR tows in the Western English Channel (between 1988 and 1998) were compared to vertically integrated samples collected from station L4 off Plymouth, UK. Comparisons were made for locally abundant copepods (including Acartia, Calanus, Para/Pseudocalanus, Centropages, Oithona and Temora) collected by CPR and WP-2 nets. All dominant species recorded at L4 were also common to the CPR data. However, the position of the taxa in the two datasets was not equivalent. Seasonal cycles revealed by CPR data were significantly similar to those recorded throughout the water column at L4 for most taxa. However, absolute levels of abundance differed for the two datasets: abundances were underestimated by CPR samples when compared to those of vertically integrated samples by a factor of between 2 and 35, with the exception of Centropages. The differing mesh sizes (200 and 270 μm) of the WP-2 net and CPR mesh could only partially explain these differences in abundance, implying that the behaviour of individual taxa and their depth in the water column also influenced the abundance recorded.  相似文献   

Eastern English Channel fish assemblages: measuring the structuring effect of habitats on distinct sub-communities   总被引：1，自引：0，他引：1  

Vaz  S.; Carpentier  A.; Coppin  F. 《ICES Journal of Marine Science》2007,64(2):271-287

  相似文献   

高校GIS专业课程设置的探索   总被引：8，自引：4，他引：4  

朱庆伟 《测绘科学》2008,33(4)

通过对高校地理信息系统(简称GIS)专业基础理论、基本方法、应用技术、与学科最新发展前沿的深入分析,结合GIS专业学生的知识结构体系,提出了一种新的GIS专业基础课和专业课的设置,在对GIS人才的特点和能力培养途径提出了自己建议的同时,对课程内容及教学形式等相关问题进行了相应地探讨。  相似文献   

精品课程教学基本建设与教学改革研究——以《遥感概论》省级精品课程建设为例   总被引：4，自引：1，他引：3  

张安定  张丽  孔祥生 《测绘科学》2008,(Z1)

以《遥感概论》省级精品课程建设为例,探讨精品课程教学基本建设与教学改革。认为高素质的教师队伍是精品课建设的基础,课程体系和教学内容的设计是精品课建设的关键,课程网站是精品课程建设的必备条件,学生综合能力提高是精品课建设的目标,并结合课程教学实践,提出了相应的建设措施。  相似文献   

建立影像地图集生产系统,提高实践性教学质量     

唐三林  王光霞  谢耕 《测绘工程》2008,17(2):77-80

结合《苏州市影像地图集》的设计和研制,着重讨论基于新技术进行影像地图集生产的软硬件环境,以及通过对新技术的生产流程、过程控制方法等关键环节的技术研究和实践,建立了影像地图集生产实践教学系统。该系统为教师提供了先进的科学研究、技术开发和技术应用环境和条件,为开展实践性教学和进行地图集设计、生产提供理论和技术指导。  相似文献   

科技论文英文部分的书写规范化探讨   总被引：1，自引：0，他引：1  

王凤梅 《沙漠与绿洲气象(新疆气象)》2002,25(3):27-28

为方便与国际交流，许多科技期刊都要求论文的题名、摘要、关键词等翻译成英文。本文对科技论文英文部分的规范化进行了一些探讨。  相似文献   

高职GIS专业实践教学及实践基地建设     

张立  陈波 《现代测绘》2003,26(6):45-46

高职教育是GIS人才培养的重要组成部分。本文通过介绍职教GIS专业的建设，探索GIS实践教学与实践基地建设模式、方法及对人才培养的影响。  相似文献   

Computer-assisted teaching and learning in photogrammetry     

Joachim Höhle 《ISPRS Journal of Photogrammetry and Remote Sensing》1997,52(6):266-276

The advanced personal computer models, new storage media such as CD-ROMs, new authoring tools and especially the Internet will influence the production of learning software for photogrammetry. Some examples of learning programs are presented, including experience from the development and use of these programs in the education of land surveyors. They demonstrate the progress made over the years as well as the potential and possibilities of computer-assisted teaching and learning in photogrammetry.  相似文献   

Productivity Profiles of PhD-Granting Geography Departments in the Unites States: 1980–1994     

Richard E. Groop  Randall J. Schaetzl 《The Professional geographer》1997,49(4):451-464

In our study, 48 U.S. departments that grant geography PhDs are compared along four measures of academic productivity. Using 1980–1994 as the base period, research productivity of faculty was assessed by counting book titles, as well as authorships in 77 journals. Teaching productivity was determined by placement of PhDs in graduate programs of geography in North America, and by a weighted index of teaching outcomes. Data were summed for departments, but are reported primarily as productivity per person (per FTE count). The results point to a wide variety of departmental profiles, from those departments that appear to emphasize teaching outcomes to those that are more productive in book publishing and journal authorship, with several exhibiting a balance between teaching and research.  相似文献   

Traces of the secondary Geography curriculum     

Lex Chalmers 《New Zealand geographer》2005,61(2):148-157

Abstract: Expressions of dissatisfaction about the post‐compulsory Geography curriculum in the early 1970s were unusually concerted, leading to the creation of a National Geography Curriculum Committee. This essay reviews this history and the resulting Syllabus for Schools: Geography Forms 5–7 as a prelude to a discussion of contemporary curriculum development. The essay argues that curriculum development from 1975 and the ‘education reforms’ of the late 1980s failed to produce conditions in which satisfactory outcomes for a Geography curriculum can be assured in 2005, and that a new and concerted period of participation in curriculum discussion is required. Some goals for this process are outlined in the final section of the paper.  相似文献