The world ocean, including oceans and marginal seas, covers 71% of the Earth’s area and has been considered as a supportive system to the Earth’s life. Especially, the ocean maintains food and energy security for humankind while such sources are being exhausted on the mainlands. The climate change and its impacts on oceans, coasts and islands ha...
10 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 735 | Lượt tải: 0
Bài viết trình bày tốc độ chuyển động kiến tạo hiện đại và tốc độ biến dạng trên Biển Đông Việt Nam và lân cận từ các đợt đo GPS từ 2007 tới 2010. Việc xác định tốc độ chuyển dịch tuyệt đối trong hệ thống ITRF05 cho thấy bắc Việt Nam chuyển dịch về phía đông với tốc độ dao động trong khoảng 30 - 39 mm/năm, chuyển dịch về phía nam với tốc độ tron...
14 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 654 | Lượt tải: 0
This paper presents the survey results on reef fish fingerling in water of Son Tra Peninsula, Da Nang. The results focused on fingerling of three families: Grouper (Serranidae), Rabbitfish (Siganidae) and Snapper (Lutjanidae). They concentrate in the main season from April to September and are exploited by diving and seine net. There are 14 fish...
9 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 643 | Lượt tải: 0
Recognising the limitations encountered during the operation of the national database of resources, environment of seas and islands, the article proposed to adjust the data structure of this database aiming at easily updating, managing and distributing the existing data as well as new data, improving the quality and reliability of the data but n...
7 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 689 | Lượt tải: 0
The reported increases in precipitation and tropical cyclones over Central Vietnam have immediate impacts on storm surge, i.e. one of the most destructive systems associated with a tropical cyclone that threatens the coastal communities. The occurrence of storm surge in a changing climate with increased precipitation and tropical cyclones wi...
8 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 1097 | Lượt tải: 0
The optical sensor is spectral reflectance data collected in visible and infrared region. Thus, information from optical satellite imagery observed only information about the surface of the canopy. Therefore, the information extracted and correlation model derived from optical satellite images have been limited to the recorded information an...
12 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 882 | Lượt tải: 0
This study was conducted to evaluate the effect of combination factors of salinity and temperature on the growth and survival rate of hard clam (Meretrix meretrix) juveniles. Hard clam was cultured in laboratory at three different temperatures (150C, 270C and 350C) in combination with three different salinity conditions (5‰, 20‰ and 35‰). Each e...
6 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 708 | Lượt tải: 0
The report summarizes data of two recent surveys on the demersal fisheries using bottom trawling nets in Vietnamese seawater during 2012 - 2013 under a framework of the project “Comprehensive Assessment of State and Dynamics of Vietnam Marine Resources”. It was indicated that the demersal fisheries resources varied in different surveyed regions ...
11 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 707 | Lượt tải: 0
In the period 2006 - 2013, a total of 32 trawl surveys were conducted in the Common Fishing Zone (CFZ) between Vietnam and China in Gulf of Tonkin. A total of 1,060 trawl samplings (mesh size at cod end 2a = 30 mm) were conducted regularly in January, April, July and October from 2006 - 2013 with towing duration of one hour per haul on average. ...
7 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 683 | Lượt tải: 0
The mangrove forest in the coastal zone has not only a significance to environment but also an important role in wave attenuation and coast protection. However, quantitative assessment of the role of mangrove forest in wave attenuation is just new in Vietnam. This paper presents the results of applying a numerical model based on Deltf3d model sy...
10 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 871 | Lượt tải: 0
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