台湾海峡微微型浮游植物的生态研究——Ⅰ.时空分布及其调控机制   总被引：10，自引：3，他引：10       下载免费PDF全文

黄邦钦  洪华生  林学举  陈纪新 《海洋学报》2003,25(4):72-82

1997年8月、1998年2～3月和1998年8月,调查分析了台湾海峡微微型浮游植物的时空分布(平面、垂直、总日和季节)及其调控机制。结果表明,微微型浮游植物丰度的平面分布不均匀,各类群具有不同的密集区,并存在明显的地理差异,垂直分布存在6种模式,以标准单峰和弱单峰为主,分布类型的多样化是由于微微型浮游植物固有的垂直分布模式和研究海域复杂的地形及水动力(如跃层等)条件相互作用的结果,微微型浮游植物的丰度存在明显的随时间变化现象;在季节变化方面,各类群存在较为明显的差异,温度是影响台湾海峡微微型浮游植物平面分布的重要因子,而光辐照度、温盐跃层是影响垂直分布的重要因子,微微型浮游植物不同类群在时空分布上存在“位移”现象,此与不同类群对温度敏感性不同、对光的利用能力不同以及生存空间的互补性等因素有关。  相似文献   

Regional variation in maturation of sandeels in the North Sea   总被引：1，自引：0，他引：1  

Boulcott  Philip; Wright  Peter J.; Gibb  Fiona M.; Jensen  Henrik; Gibb  Iain M. 《ICES Journal of Marine Science》2007,64(2):369-376

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Sustainable management of mixed demersal fisheries in the North Sea through fleet-based management a proposal from a biological perspective     

Ratz  Hans-Joachim; Bethke  Eckhard; Dorner  Hendrik; Beare  Doug; Groger  Joachim 《ICES Journal of Marine Science》2007,64(4):652-660

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Adaptive fisheries management in Vietnam: The use of indicators and the introduction of a multi-disciplinary Marine Fisheries Specialist Team to support implementation     

Jesper Raakjær  Dao Manh Son  Karl-Johan Stæhr  Holger Hovgård  Nguyen Thi Dieu Thuy  Kristine Ellegaard  Frank Riget  Dang Van Thi  Phung Giang Hai 《Marine Policy》2007

Vietnam is in the process of introducing adaptive management based on indicators and time-series to manage its marine fisheries. The development of indicator-based frameworks for fisheries management has accelerated in recent years. This article describes the suite of indicators being suggested or used in Vietnam including the data-collection system. The Vietnamese approach is supported by an institutional structure consisting of a multi-disciplinary advisory system to facilitate the process of using indicators and to introduce knowledge-based management. The article concludes by identifying current problems and weaknesses and by providing suggestions for future improvement of the system.  相似文献   

The impacts of increased codend mesh size on the northern Baltic herring fishery: ecosystem and market uncertainties     

Kuikka  S.; Suuronen  P.; Parmanne  R. 《ICES Journal of Marine Science》1996,53(4):723-730

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Annual Cycle of Zooplankton Biomass, Abundance and Species Composition in the Neritic Area of the Balearic Sea, Western Mediterranean   总被引：7，自引：0，他引：7  

MªLuz Fernández de  Puelles  David Grás  & Santiago Hernández-León 《Marine Ecology》2003,24(2):123-139

Abstract. Seasonal changes in zooplankton biomass, abundance and species composition were studied at a neritic station in the Balearic Sea between April 1993 and May 1994. Sampling was carried out every 10 days in a zone influenced by the main current circulating through the Mallorca channel. Three main peaks of zooplankton biomass and abundance were observed: (1) at the beginning of summer when the thermocline developed, (2) in autumn when the thermocline broke down, and (3) in early spring. The smaller zooplankton fraction (100–250 μm) comprised on average 32 % of the total biomass and 73 % of total abundance. Copepods were the predominant group (64 % of the total abundance) with Clausocalanus, Oithona and Paracalanus being the most abundant genera. Paracalanus parvus, Clausocalanus furcatus, Acartia clausi, Oithona plumifera, Temora stylifera, Centropages typicus and Oncaea mediterranea were found to be the most important species in the area. Other abundant groups were cladocerans (15 %) and meroplankton larvae (12 %), both of which were particularly numerous during the stratified period. The copepod community was characterized by the above‐cited perennial species, which were abundant during the cycle studied. However, the influence of the hydrological conditions of the Balearic Sea, such as the Atlantic water influx and the physical structure of the water column (stratification and mixing), promoted the observed variability in zooplankton as well as the appearance of characteristic species during the annual cycle.  相似文献   

Use of Continuous Plankton Recorder information in support of marine management: applications in fisheries, environmental protection, and in the study of ecosystem response to environmental change   总被引：2，自引：0，他引：2  

K. M. Brander  R. R. Dickson  M. Edwards 《Progress in Oceanography》2003,58(2-4):175

The Continuous Plankton Recorder (CPR) survey was conceived from the outset as a programme of applied research designed to assist the fishing industry. Its survival and continuing vigour after 70 years is a testament to its utility, which has been achieved in spite of great changes in our understanding of the marine environment and in our concerns over how to manage it. The CPR has been superseded in several respects by other technologies, such as acoustics and remote sensing, but it continues to provide unrivalled seasonal and geographic information about a wide range of zooplankton and phytoplankton taxa. The value of this coverage increases with time and provides the basis for placing recent observations into the context of long-term, large-scale variability and thus suggesting what the causes are likely to be. Information from the CPR is used extensively in judging environmental impacts and producing quality status reports (QSR); it has shown the distributions of fish stocks, which had not previously been exploited; it has pointed to the extent of ungrazed phytoplankton production in the North Atlantic, which was a vital element in establishing the importance of carbon sequestration by phytoplankton.The CPR continues to be the principal source of large-scale, long-term information about the plankton ecosystem of the North Atlantic. It has recently provided extensive information about the biodiversity of the plankton and about the distribution of introduced species. It serves as a valuable example for the design of future monitoring of the marine environment and it has been essential to the design and implementation of most North Atlantic plankton research.  相似文献   

Industry participation in stock assessment: the New Zealand SNA1 snapper (Pagrus auratus) fishery     

Mark N. Maunder  Paul J. Starr   《Marine Policy》2002,26(6)

We describe industry funded contributions to the assessment of the SNA1 snapper (Pagrus auratus) fishery during the 1990s and discuss the advantages and disadvantages of industry funded research. We also provide background on the history of fisheries management in New Zealand, on the current assessment and management processes, and on the SNA1 snapper fishery. In the SNA1 fishery, the contributions of industry and the cooperation with Government scientists has resulted in high quality assessments. In our opinion, the advantages of industry funded research out weigh the disadvantages and suggest that industry funded assessments are highly desirable and should be an integral part of any management system.  相似文献   

French marine technology policy : Industrializing ocean depths     

Daniel Spagni  Luke Georghiou  Michael Gibbons 《Marine Policy》1985,9(4):280-291

This paper outlines the structure of the institutions involved in scientific and technological development in France. It points to new trends in French marine policy, and gives details of the country's offshore petroleum technology and nodule mining.  相似文献   

Recent changes in the winter distribution and movements of northern Atlantic cod (Gadus morhua Linnaeus, 1758) on the Newfoundland-Labrador Shelf     

Kulka  David W.; Wroblewski  J. S.; Narayanan  Savi 《ICES Journal of Marine Science》1995,52(6):889-902

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