發(fā)布時(shí)間：2023-06-03 22:16

　　帶魚保護(hù)區(qū)位于中國(guó)東海,該保護(hù)區(qū)具有較高的生產(chǎn)力和豐富的漁業(yè)資源。在過(guò)去的四十年里,該海域的漁業(yè)資源在高強(qiáng)度的捕撈壓力下遭到了過(guò)度開(kāi)發(fā),導(dǎo)致了不同程度的生態(tài)環(huán)境變動(dòng)和海洋生物群落改變。隨著科技發(fā)展,網(wǎng)具效率提高、漁船數(shù)量和大功率漁船增加,漁業(yè)資源的捕撈壓力不斷增長(zhǎng)。全球漁業(yè)資源衰退的情況下,中國(guó)等大部分國(guó)家針對(duì)漁業(yè)資源保護(hù),出臺(tái)相關(guān)政策,例如控制捕撈量和捕撈努力量等。本研究于2012²016年春、秋季節(jié),通過(guò)利用底拖網(wǎng)對(duì)帶魚保護(hù)區(qū)的漁業(yè)資源和環(huán)境因子進(jìn)行了共10個(gè)航次的調(diào)查,結(jié)合以往關(guān)于東海調(diào)查的歷史數(shù)據(jù),對(duì)該海域的魚類種類組成、魚類群落結(jié)構(gòu)的時(shí)空分布、資源動(dòng)態(tài)、生物多樣性、9種主要漁獲種類的生物學(xué)特性及與環(huán)境因子的關(guān)系進(jìn)行了研究。結(jié)果顯示:2012²016年10個(gè)航次的漁業(yè)資源調(diào)查共采集到魚類188種,包括軟骨魚類2種和硬骨魚類186種,隸屬72科17目。其中鱸形目種類最多,有78種,其次為鰈形目(27種)、鰻鱺目(16種)、鲀形目(14種)、鲉形目(12種)和鯡形目(11種),均超過(guò)10種,剩下11目的種類較少,均少于10種。該海域漁業(yè)資...

【文章頁(yè)數(shù)】：135 頁(yè)

【學(xué)位級(jí)別】：博士

【文章目錄】：
Abstract 摘要 Acronyms and abbreviations Chapter1:Research progress in the hairtail protected Area(East China Sea)
1.1 Geographic position,the range and time of the Hairtail Protected Area
1.2 Physical features in the ECS
    1.2.1 Geography
    1.2.2 Physiography
    1.2.3 Climate
    1.2.4 Hydrographic characteristics
1.3 The main species of the Protection Area(HPA)
1.4.Ecology,Exploitation of fish stocks in the ECS
    1.4.1 Ecological and environmental impact of the East China Sea
    1.4.2 History of the marine fishery in China
1.5 The main research contents,the purpose of this study and innovation Chapter2:Fish fauna and spatial- temporal variation in the Hairtail Protected Area
2.1 Materials and Methods
    2.1.1 Study area and data collection
    2.1.2 Statistical analysis
2.2 Results
    2.2.1 Species composition
    2.2.2 Diversity indices of the fish community
    2.2.3 Spatial-temporal distribution of abundance and biomass in the HPA
2.3 Discussion
    2.3.1 Seasonal changes of species composition and spatial-temporaldistribution
    2.3.2 Seasonal changes of fish community diversity indices Chapter3:Biological characteristics of major fish species in the Hairtail protected area
3.1 Materials and Methods
    3.1.1 Data analysis
3.2 Changes in dominant species between seasons and years in the HairtailProtectedArea
    3.2.1 Abundance dynamics of dominant species spring
    3.2.2.Abundance dynamics of dominant species autumn
3.3 Abundance-Biomass comparison(ABC curves)
3.4 Length-weight relationships of fifteen main fish species from the hairtailprotectedarea
3.5 Population parameters of major fish species along the Hairtail Protected Area..
3.6 Discussion
    3.6.1 Changes in community stability
    3.6.2 Changes of biological characteristics and Length-weight relationshipsof 15 main dominant species of fishery
    3.6.3 Growth and mortality rates
    3.6.4 Seasonal changes of dominant species Chapter4:Environmental variables related to the fish community in the hairtailprotectedarea
4.1 Materials and Methods
    4.1.1 Data analysis
4.2 Main physical and chemical parameters and their variability
4.3 Environmental variations in the HPA stations
4.4 Relationships between fish species and environmental variables
4.5 Discussion Chapter5:Strategies or suggestions to improve Hairtail protected area management
5.1 Administrative framework to establish a marine protected area
5.2 China’s approach to fisheries management
5.3 Strategies for conservation of fisheries resources
    5.3.1 Strategy to create a network of Marine Protected Areas(for example EastChinaSea)
    5.3.2 Strategy on the zoning of marine protected areas
    5.3.3 Involvement of the local communities and fishermen
    5.3.4 Prohibition of certain fishing gears that degrade habitat
    5.3.5 Restoration/Mitigation Efforts
    5.3.6 Increase public awareness
    5.3.7 Fight against pollution and climate change in the oceans References Acknowledgements Annexes Publication and Submission papers



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