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by Changfeng Qu, Jin'ning Song, Ning Li
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Jellyfish blooms have damaged this normal composition and function of Marine Ecosystem and ecological environments, which have been One of the new Marine ecological disasters. In This study , we summarized the possible inducements of jellyfish blooms, on influences of jellyfish Blooms on biogenic elements, Dissolved oxygen, Seawater acidity and biological Community were discussed Emphatically. The results showed so Jellyfish blooms had a close Contact with its Physio ­ logical Structure and Life history , which had favorable characteristics including Simple body struc­ture , Rapid * Growth, thriving ReproductionThen short generation Interval to tolerate harsh Environment Better. Jellyfish abundance increased rapidly when it Encountered suitable conditions. The tempera­ture variations of seawater Might be the major inducing factor which could result in Jellyfish blooms. Jellyfish Blooms may benefit from warmer Temperature thatcould increase the food Availability of, Jel ­ lyfish Then Promote jellyfish Reproduction, especially for warm temperate jellyfish species. Eutrophi ­ cation , ClimateChange , overfishing , alien * Invasions and Habitat modification were all Possible im ­ portant contributory factors of Jellyfish blooms. Jellyfish could significantly influence the form Distri ­ bution Then biogeochemical cycling of biogenic Elements . Jellyfish excreted NH4 + and PO4 3- at a rate of 1-91.5 ^mol N • kg-1 • H-1Then 1.1-1.8 ^mol P • kg-1 • h-1 , which could meet A ­ bout 8 % -10% and 21.6% of Phytoplankton primary Production requirement of N and P, respectively . Live jellyfish released dissolved organic carbon (DOC ) at a rate of 1.0 ^ mol C • g "1 • d as jellyfish decomposing, this effluxes of of Total N and Total Pwere 4000 ^ mol N • kg • and, ^ Mol P • kg • d 1, respectively , the efflux of DOC reached ^mol C • G • D _1. Jellyfish decomposition could cause Seawateracidification and lowered level of dissolved Oxy  Gen Then finally made the ambient Water become Acidic Then hypoxic . The pH decreased by 1.3, while This Meandissolved Oxygen demand reached . 8 ^ mol • kg • H 1. Jellyfish blooms also in ­fluenced This Marine organism Community , which might reduce " Biomass of Some fish and Zoo ­ Plankton , Increase , amount to Bacterioplankton, indirectly increase this quantity of of phytoplankton and lead to Abnormal primaryProduction .

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Articles

by Zhuang Yao, Fei Zhang, Zhihui Yao, Shigang Liu, Yu Guo, Yong Tang
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In 2013 Years 5 Monthly Utilization Bandwidth to 20 HZ ~ 100 KHZ the water detector measurement system The large black stone of the surrounding waters around Dalian、Pay Home Zhuang、Xinghai Bay、Tahe Bay、Sea Rhyme 5 underwater noise at a typical station is measured Quantity,Get take the ambient noise data from each site and Wind Speed、environment such as sea conditions toVegetarian,and then Noise Sound Average sound pressure level ( SOUnD PRESsURE LEveL,SPL)  Calculation and 20 HZ ~ 100 KHZ Bandwidth Noise Spectrum score Analysis.Result Table Ming:  PayHome Zhuang、Star Bay Sea area noise average sound pressure level respectively to 126. 58、123. 39 DB ( To 1 ΜPA for reference Sound pressure,Next same) ,Shipping Routes Row、near-shore construction and other man-made noise is the area's Primary Noise Source;  Big Black Stone、TaheBay Ocean noise is lower than low,average sound pressure levels are respectively115. 66、122. 17 DB,natural noise such as tidal and wind waves is the main marine noise in the sea area Source;  Cargo port and navigation The average sound pressure level in the sea near the road is the most High,For 132. 53 DB,Ship navigation, etc. as the main noise Source. Total Body Top,Marine noise in the vicinity of Dalian is affected by human activities Louder,on port Navigation Road、Ocean engineering areas show higher Noise Water Ping,The is located in the Bohai Sea in the culture of the most noise Low.flat for this measurement sound pressure levels in the hearing of fish and marine mammals Surround inside,but because of the sound pressure level relative Low,There should be no significant impact on local mariculture and marine mammals Ring.

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Articles

by Biao Hu, Jian'yi Li
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I This paper establishes a evaluation system of indicators for the intensive use of marine and the Marine Onment and makes the comprehensive assessments for intensive with the marine and the Marine in environment L Provinces from the perspective of spatial-temporal disparities. It aims to quantitative the development of the intensive use of marine and the marine environment as as the Level of coordination between them. The results show that the intensive use of marine development varies greatly, the "the" Northern area and then southern area. The level of marine environment is increasing but the level of marine environment still at low level. From the time perspective, the coordinated level of intensive to marine and marine environment promote gradually in C Oastal provinces, however, gaps between provinces are improving years by years; In the aspect of space, spatial patterns changed significantly which shows gathering characteristics but lacked of agglome Ration significant regions.

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Articles

by Lingjia Zhu, Tiuping Ma
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marine pollution damage face large , duration long , Marine Ecological Environment and resource recovery The original state process is slow , Pure economic loss caused by

covers a wider area than a common environmental infringement , A certain range of compensation is in line with legal justice , facilitates social harmony and stability , also complies with international trend Flow Trend . China should draw on the Convention system of compensation for oil Pollution Damage of ships and foreign legislation and compensation practice , Combined with the existing pure economic losses of justice through the

Check , Compensation system for pure economic loss in marine oil pollution damage .
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Articles

by Yan-hui ZHANG
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The paper analyzed verification requirements of environmental suitability from standard selection and use based On features of Shipborne weapons serving with aircraft carrier in Marine. After comprehensive consideration on climatic and mechanical environment faced by shipborne weapons, some on Verification requirements of environmental suitability a shipborne weapons were proposed overall. At present, the marine environment of shipborne weapons is insufficient, and most standards are From different channels from foreign counties. There are many inconformities. Whether The standard tailoring is reasonable remains to be discussed. Meanwhile, it also pointed out key technical problems in further and provided to support more propose Verification requirements on environmental suitability.

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