The monitoring results show:

The city's marine environment monitoring results in 2005 show that the severely polluted sea area in the coastal waters is 4131 square kilometers, and the moderately polluted sea area is 2396 square kilometers. , the overall marine environmental quality of Zhoushan waters is similar to last year, but the area of ??seriously polluted sea areas has decreased.

The main factor exceeding the standard in seawater is nutrient salts, and petroleum slightly exceeds the standard at some measuring stations.

In 2005, the quality of surface sediments in the coastal waters of Zhoushan was good. Except for the heavy metal copper which slightly exceeded the standard at some measuring stations, the other indicators met the first-class marine sediment quality standards.

In 2005, the hygienic quality of commercial shellfish in some coastal areas of Zhoushan City was acceptable; among the commercial shellfish (mussels, razor clams, mud clams, oysters, etc.) sampled, except for the heavy metals lead, cadmium and Except for a slight residue of DDTs, all other indicators meet the first-class marine life quality standards.

Red tide disasters occur frequently.

In 2005, 11 red tides occurred in ***, with a cumulative area of ??more than 10,000 square kilometers.

With the economic development of Zhoushan City, the environmental quality of coastal and offshore waters is not optimistic, and the discharge of various pollutants into the sea will not be significantly reduced in the near future.

Therefore, it is necessary to strengthen the monitoring and rectification of the marine environment in the sea areas under the jurisdiction of Zhoushan City, and provide services for government departments at all levels to formulate marine environment management policies, determine marine environment management goals, mitigate marine disasters, and adjust economic structure.

At the same time, we also hope that government departments at all levels and the public in our city will continue to pay close attention to the marine environment in Zhoushan City, protect the marine environment while developing and utilizing marine resources, and ensure the stability and diversity of the marine ecosystem. nature and integrity to ensure the sustainable utilization of marine resources and the sustainable development of the marine economy.

2. Status and trends of marine environmental quality in Zhoushan City

2.1 Pollution into the sea

Pollution in large rivers

In 2005, near the sea area of ??Zhoushan The total amount of pollutants carried into the sea by major rivers such as the Yangtze River, Qiantang River and Yongjiang River remains at a high level. The amount of major pollutants entering the sea is about 6.17 million tons, of which COD is 5.91 million tons, accounting for about 95.8% of the total; nutrient salts are 19 million tons, accounting for approximately 3.1% of the total; petroleum products accounted for 39,000 tons.

Pollution from land sources entering the sea

According to the statistical yearbook, the total wastewater discharge in our city in 2004 was 20.18 million tons, of which industrial wastewater discharge was 10.38 million tons, and industrial solid waste discharge was 04,700 tons.

Pollution from sea sources entering the sea

In 2005, the city's marine aquaculture area was 9,397 hectares, a decrease of 10.5% from the previous year, and the marine aquaculture output was 115,400 tons, a decrease of 8.6% from the previous year.

With the reduction of marine aquaculture area in our city’s coastal waters and the promotion of pollution-free production, the pollutants produced by the aquaculture itself are on a decreasing trend.

Marine mobile pollution sources include sewage discharge from merchants, cargoes, and fishing vessels. The main types of pollutants are waste oil, waste gas, ballast water, domestic garbage, and sewage.

According to preliminary statistics, by the end of 2005, the number of marine motorized fishing boats in our city had reached 9,103, with a total power of 1.3699 million kilowatts, and a fishery labor force of 99,956 people.

2.2 Seawater Environmental Quality

The city’s marine environment monitoring results in 2005 show that: the overall marine environment quality of Zhoushan sea area is similar to last year, but the area of ??seriously polluted sea areas has decreased; nutrients in seawater Salt exceeds the standard seriously, and petroleum exceeds the standard to varying degrees. The other monitoring indicators are in line with the second-class seawater quality standards.

The severely polluted sea area in Zhoushan sea area is 4131 square kilometers, the moderately polluted sea area is 2396 square kilometers, the lightly polluted sea area is 2167 square kilometers, the relatively clean sea area is 2713 square kilometers, and the clean sea area is It is 9423 square kilometers.

Inorganic nitrogen

In the Zhoushan sea area, the average content of inorganic nitrogen exceeds the Class IV seawater quality standards, with a multiple of 1.77.

The sea areas near Shengsi Islands, the sea areas near Daishan and Qushan Islands, and the sea areas near Zhoushan Island are all seriously polluted sea areas. Their average content exceeds the Class IV sea water quality standards by 2.27 times, 0.47 times and 0.33 times respectively.

Compared with the previous year, the inorganic nitrogen content in the sea areas near the Shengsi Islands has increased, and the inorganic nitrogen content in the sea areas near Daishan and Qushan Islands and the sea areas near Zhoushan Island has decreased. Data shows that the Yangtze River sewage discharge has increased. increasing trend.

Active phosphate

The average content of active phosphate in Zhoushan sea area, except for the sea area near Zhoushan Island, which is lightly or moderately polluted, other sea areas are relatively clean sea areas.

The average standard index of active phosphate in the waters near Shengsi Islands, the waters near Daishan and Qushan Islands, and the waters near Zhoushan Island is 1.40, 1.70 and 2.13 respectively. Compared with the previous year, the degree of phosphate pollution has increased reduced).

Petroleum

The average petroleum content in Zhoushan waters has increased compared with last year, and it is a lightly polluted sea area.

Its average content basically meets the first-class seawater quality standards, but the petroleum content in the waters near Zhoushan Island slightly exceeds the standard, with a multiple of 1.94.

Data show that oil pollution in Zhoushan waters has worsened with the construction and expansion of oil depots and oil terminals on Zhoushan main island and nearby islands, as well as the increase in the import and export, storage and transportation of oil products.

2.3 Marine sediment quality

In 2005, the surface sediment quality of Zhoushan offshore waters was good, including petroleum, sulfide, organic carbon, mercury, cadmium, lead, arsenic, 666, Indicators such as DDTs all meet the first-class marine sediment quality standards, and the heavy metal copper slightly exceeds the standard at some measuring stations.

Heavy metal copper exceeded the standard at some measuring stations, with a maximum standard index of 1.28 and an exceedance rate of 75.

2.4 Quality of marine life

The results of sampling testing of economic shellfish (mussels, razor clams, clams, oysters, etc.) along the coast of Zhoushan City in 2005 showed that: Economic shellfish in Zhoushan City The heavy metal lead in the body exceeds the first-class marine life quality standards, cadmium and DDTs have slight residues, and other indicators meet the first-class marine life quality standards.

Compared with 2004, the biological quality has improved (Table 3).

Table 3 Main excessive factors in economic shellfish in Zhoushan City in different years

Main excessive factors in the survey years

None in 2002

2003 DDT in 2004

Petroleum hydrocarbons, heavy metals lead, arsenic, and DDT in 2004

Heavy metals lead, cadmium, and DDTs in 2005

Lead Shengsi’s Sijiao and Shengshan The heavy metal lead content in economic shellfish in areas such as , Gaoting and Dongsha in Daishan, and Liuheng in Putuo all exceeded the first-class marine life quality standard, and the standard index was between 2.6 and 6.9.

Cadmium The content of the heavy metal cadmium in economic shellfish in Sijiao, Shengshan, Gaoting, Liuheng and other areas slightly exceeds the standard, with the standard index ranging from 1.91 to 6.85; in other areas, it conforms to Category I Marine life quality standards.

DDTs (DDTs) DDTs exceeded the standard in Sijiao, Shengshan, Dongsha, Liuheng and other sea areas, and the standard indexes were all between 1.17 and 2.40.

3. Marine disasters and marine pollution incidents

3.1 Red tide disaster

In 2005, the red tide disaster in the East China Sea was serious, and Zhoushan was also one of the hardest-hit areas.

Red tides occurred *** 11 times in Zhoushan waters throughout the year, with a cumulative area of ??more than 10,000 square kilometers, nearly double the previous year and the highest in the past five years; at the same time, new dominant species (such as Karenia mikimotoi, Thalassiella cyclops, etc.); May to June is the period when red tides occur frequently in Zhoushan waters (see Table 4).

The dominant species of red tide this year are Skeletonema costatum, Prorocentrum dantatum, Karenia mikimotoi, etc. There are no abnormalities in cultured organisms in the area where red tide occurs. Phenomenon, shellfish toxin testing was carried out on fish and shellfish in areas where red tide occurs in Zhongjieshan, Shengshan, Zhujiajian, Taohua Island and nearby sea areas. No red tide toxins were detected in all biological samples.

Table 4 List of red tides in large areas in Zhoushan sea area in 2005

Serial number Occurrence time and location Longitude and latitude area (km2) Red tide organisms

1 6.1 Southwest of Shengshan Island To

122°40.1′E in the sea area east of Dachangtu Mountain,

30°28.0′N～

122°34.4′E,

p>

30°07.3′N About 4000km2 Gymnodinium Nagasaki

Protodinoflagellates

2 6.2-6.3 Zhongjieshan Islands to

The sea area near the Yangtze River Estuary is 122°37.6′E,

30°05.5′N～

122°44.9′E,

31°29.9′N About 6000km2

(Across provinces) Gymnodinium Nagasaki

Protodinium dentata

Skeletonema costatum

Congregation Chaetoceros

3 6.4 The sea area outside the Yangtze River Estuary 122°15.0′E,

31°00.9′N about 1000km2

(inter-provincial) Middle rib strip Algae

Ceratophyllum synergum

4 6.5 from the north of Hua Niao Mountain to

the sea area outside the Yangtze River Estuary at 122°44.9′E,

31°00.5′N～

122°45.0′E,

31°30.0′N about 2700km2

(across provinces) Skeletonema costa

Ceratophyllum synergum

Gymnodinium Nagasaki

Protodinoflagellates

5 6.16 Daji Mountain, Shengsi Horse Trail Shan, Shengshan, Huaniaoshan, Langgang Islands, Xiazhimen and Taohua Island and 121°12′E, 30°29′N, 122°14′E, 30°37′N, 122°31′E, 29 °59′N and other sea areas of 10km2 ~ 330km2 Thalassiosira circans

Skeletonema costalis

Protodinium denticola

3.2 Storm surge

This year, there were three main storm surges along the coast of Zhoushan, respectively caused by typhoons Maisha (No. 0509), Caidie (No. 0514) and Kanu (No. 0515).

Among them, Typhoon Maisha made landfall in Yuhuan, Taizhou, Zhejiang on August 5, Typhoon Kanu made landfall in Jiaojiang, Taizhou, Zhejiang on September 11, and Typhoon Caidie turned offshore.

The three typhoons all brought a large increase in tidal level to the coast of Zhoushan. Since the impact of typhoons "Maisha" and "Caidie" coincided with the astronomical tides, Zhoushan Ocean Station (Shenjiamen), At Daishan Ocean Station, there were *** levels exceeding the local warning water level. Typhoon Kanu coincided with the astronomical neap tide. Although the impact was great, there was no *** level exceeding the warning water level.

The occurrence of the extreme *** position throughout the year: the extreme *** position at Zhoushan Ocean Station is 276cm (85 Yellow Sea base level, the same below), which occurred on September 5; the extreme value at Daishan Ocean Station The highest value is 242cm, which occurred on September 5; the extreme highest values ??at the two stations both occurred during the impact of Typhoon "Nai Die".

3.3 Disastrous waves

In 2005, there were 21 days of huge waves of more than 4 meters along the coast of Zhoushan and adjacent waters, which was significantly more than usual. Among them, there were 21 days affected by typhoons. 10 days, 8 days are affected by cold air, and 3 days are affected by the simultaneous effects of both.

3.4 Marine pollution incident

On February 25, the "Ningda 1" ship collided with the anchored "Yunhong 7" ship at the Wukuishan anchorage in Zhoushan, Zhejiang Province , the cargo hold was damaged and about 0.5 tons of oil was spilled.

On September 23, the ship "Huajie 6" spilled 125 kilograms of fuel from the ventilation pipe in the waters of Mazhi Anchorage, Zhoushan, Zhejiang Province.

4. Environmental conditions of marine functional areas

4.1 Environmental conditions of marine aquaculture areas

Shengsi seawater aquaculture area

April 2005~ In September, 7 monitoring stations were deployed in the Shengsi seawater aquaculture area (Shengsi Luhua Island) and 6 voyages of monitoring were carried out.

The monitoring results show that: the water body in the breeding area is in a eutrophication state, inorganic nitrogen and active phosphate are the main factors exceeding the standard, the maximum standard index is 3.20 (calculated according to the second-class seawater quality standard), pH, DO, Neither COD nor fecal coliform single factors contaminate the water in the breeding area; in the sediment, the contents of sulfide, organic matter, fecal coliform, total mercury, lead, arsenic, and cadmium in the monitored sea area are all consistent with marine sediments. The first-class quality standard; the total biological mercury, cadmium, lead, arsenic, copper, and petroleum hydrocarbon indicators all meet the first-class quality standard of marine organisms; the content of fecal coliform exceeds the standard (≤3/g) and is relatively high (15~ 18/g); the contents of DDT, PCBs, paralytic shellfish poisoning and diarrheal shellfish poisoning were not detected.

Dingzuimen Breeding Area

From May to September 2005, the water quality and sediment of the key seawater aquaculture area in Dingzuimen, Daishan, were sampled and monitored.

The monitoring results show that: from May to September, the average content of inorganic nitrogen in the marine aquaculture area exceeds the national Class IV seawater quality standards, and the active phosphate in some waters exceeds the standard. Other monitoring indicators are in line with the marine aquaculture water quality standards; the aquaculture area The sedimentary environment is relatively good, but PCB residues in the sediments in some areas are relatively high, and their content exceeds the national first-class marine sediment quality standards; the heavy metal cadmium content in the cultured razor clams exceeds the standard.

4.2 Environmental conditions of key sewage outlets and adjacent sea areas

Dinghai sewage treatment plant sewage outlet and adjacent sea areas

From April to November 2005, the sewage outlet and adjacent sea areas Six voyages were monitored in the adjacent sea area. The results showed that ammonia nitrogen, fecal large intestine, biochemical oxygen demand (BOD5) and other indicators in the sewage outlet waters exceeded the second category of pollutants in the "Integrated Wastewater Discharge Standard" (GB8978-1996). The allowable emission concentration (first-level standard); chemical oxygen demand (COD), oil and suspended solids exceed the standard; volatile phenol, heavy metal total mercury, cadmium, lead, and arsenic meet the standards. The sewage outlet has certain marine environmental hazards or Potential harm.

The main pollution factors in the water body near the sewage outlet are inorganic nitrogen, phosphate and other nutrient salts, and oil also slightly exceeds the standard.

Among the water bodies, the area of ??Category 4-super sea water is 28.8km2.

The sewage outlet of Zhejiang Haishengli Group Co., Ltd. and the adjacent sea area

The ammonia nitrogen, fecal colon and other indicators in the sea area near the sewage outlet exceed the second level of the "Comprehensive Wastewater Discharge Standard" (GB8978-1996) The maximum allowable emission concentration of Class II pollutants (First Class Standard); Biochemical Oxygen Demand (BOD5) partially exceeds the standard; Chemical Oxygen Demand (COD), oil, suspended solids, volatile phenols, heavy metals total mercury, cadmium, lead, arsenic Comply with the standards; the main pollution factors in the water body near the sewage outlet are inorganic nitrogen, phosphate and other nutrient salts, and oil also slightly exceeds the standard; in the sediment, organic carbon, sulfide, petroleum, heavy metals arsenic, mercury, lead, Cadmium and other indicators all meet the first-class sediment quality standards; in terms of biological quality, petroleum hydrocarbons, fecal coliforms, heavy metals lead and cadmium in the dragonhead fish all meet the first-class biological quality standards.

Monitoring results show that the sewage outlet has certain harm or potential harm to the ecological environment of the nearby sea area.

The sewage outlet of Zhoushan Marine Biological Industrial Park and the adjacent sea area

The fecal colon and other indicators in the sea area near the sewage outlet exceed the second category of pollutants in the "Comprehensive Wastewater Discharge Standard" (GB8978-1996) The maximum allowable emission concentration (first-level standard); ammonia nitrogen, chemical oxygen demand (COD), biochemical oxygen demand (BOD5), and suspended solids exceed standards; oil, volatile phenols, heavy metals total mercury, cadmium, lead, and arsenic meet standards ; The main pollution factors in the water bodies near the sewage outlet are inorganic nitrogen, phosphate and other nutrient salts, and oil also slightly exceeds the standard; in the sediment, organic carbon, sulfide, petroleum, heavy metals arsenic, mercury, lead, cadmium, etc. The indicators all meet the first-class sediment quality standards; in terms of biological quality, the petroleum hydrocarbons, fecal coliforms, heavy metals lead and cadmium in the dragonhead fish all meet the first-class biological quality standards.

This sewage outlet has certain hazards or potential hazards to the marine environment.

Table 5 Comprehensive evaluation results of the ecological environment of the sea areas adjacent to key sewage outlets in Zhoushan City in 2005

Sewage outlets into the sea

Name Pollution type Adjacent sea area Marine functional zone

And environmental protection requirements for the ecology of adjacent sea areas

Main environmental quality levels of sea areas

Environmental issues

Dinghai, Zhoushan City

Sewage treatment plant sewage outlet municipal port area

The water quality in the waste dumping area is no worse than Category 4, the sediment is no worse than Category 3, and the organisms are no worse than Category 3.

Poor Water quality inorganic nitrogen and active phosphate exceed the standards.

Zhoushan Marine Life

Industrial Park Sewage Outlet Industrial Port Area Water quality is no worse than Category 4, sediments are no worse than Category 3, and organisms are no worse than Category 3.

Poor water quality inorganic nitrogen, active phosphate and BOD5 exceeded the standard.

Zhejiang Hailixheng Group

The water quality of the industrial port area of ??the sewage outlet of the company is no worse than Category 4, the sediment is no worse than Category 3, and the organisms are no worse than Category 3. .

Poor Water quality inorganic nitrogen and active phosphate exceed the standards.

4.3 Environmental conditions of the bathing beach

In 2005, the environmental quality of the Zhujiajian Nansha Beach was monitored during the peak swimming season (June to October).

The monitoring results show that: during the opening period of the bathing beach, the water quality rate is 100%, the probability of health index exceeding 85 is 100%, and there is no excessive fecal coliform.

The environmental quality of the bathing beach is in good condition and is suitable for swimming and other water sports.

4.4 Environmental conditions in sea sand mining areas

In order to manage sea sand mining activities in accordance with the law and scientifically evaluate the impact of sand mining on the slope, substrate, and sedimentary landforms of the beach profile, In order to fully understand the process of beach elevation changes, in early 2005, the Municipal Ocean and Fisheries Bureau commissioned the Ningbo Offshore Engineering Survey Research Institute to conduct a survey on the impact of Qitouyang sea sand mining on the beaches along the Zhujiajian coast, and invited experts and professors from Hohai University and other Review the survey report that took half a year to complete.

The approved report shows that: the changes in the tidal flow field caused by the sand mining project in Qitouyang Sea are limited to the waters near the project area and have no impact on the tide level, tidal flow field, and flow pattern of the large-scale sea area. , and had no impact on the amount of sand on the beaches along the Zhujiajian coast.

However, it was pointed out at the same time that continued and large-scale mining will have a great negative impact on the nearby marine environment, and management should be strengthened and strictly controlled.

Since August 2004, the Municipal Ocean and Fisheries Bureau has organized real-time dynamic monitoring of the beaches of Zhujiajianli Sand and Dongsha.

The two-year monitoring results show that the changes in the sand surface elevation of the two beaches are generally not significant, but are significantly affected by factors such as seasons, weather systems, tides, waves, etc., and long-term follow-up monitoring is required. .

4.5 Environmental conditions of coastal scenic spots

In 2005, our city organized and carried out marine environment forecasting for two key coastal scenic spots, including Putuo Scenic Spot and Shengsi Islands Scenic Spot.

Based on the marine hydrometeorological observation data, the tourism suitability of two key coastal scenic spots was evaluated. Putuo Scenic Spot has 69.6% of suitable and relatively suitable days for tourism throughout the year, and Shengsi Islands Scenic Spot has suitable days throughout the year. The number of days suitable for tourism accounted for 64.4%. The unsuitability for tourism in various scenic spots was mainly due to the influence of wind and waves.

Shengsi Islands Scenic Area 126 109 130

5. Marine ecological environment and resource protection and restoration

5.1 Construction of protected areas

Zhejiang Shengsi Ma'an Islands Marine Special Reserve

Zhejiang Shengsi Ma'an Islands Marine Special Reserve has been approved by the Zhejiang Provincial People's Government and the State Oceanic Administration. The total area of ??the reserve is 549 square kilometers, of which the island and land area are 19 square kilometers. The main protection objects are the ecological environment, rare and endangered organisms, fish, shellfish, uninhabited islands, natural landscapes and historical sites.

At present, the construction work of the protected area is being carried out as planned.

The establishment of protected areas will protect the natural marine environment and rare and endangered species, protect the marine ecological environment, restore marine resources, and promote the sustainable use of resources, environmental stability, and economic development.

Zhejiang Putuo Zhongjieshan Islands Marine Special Reserve

The Zhongjieshan Islands are located in the northeastern part of Zhoushan waters and in the center of Zhoushan fisheries. It is a highly productive sea area with rich marine Biological resources and island reef ecosystems.

In July 2005, the demonstration materials for the protected area passed the expert review and have been submitted to the Zhejiang Provincial People's Government for approval.

The protected area covers an area of ??202.9km2, and the protection objects are ecological environment, fish, shellfish, birds, uninhabited islands and natural landscapes.

The establishment of the protected area has enriched the types of marine protected areas in our city, laid a scientific foundation for the construction of special marine protected areas, and is conducive to protecting the marine ecosystem near the Zhongjieshan Islands and rationally developing resources. Improve the living standards of island residents and promote the sustainable development of the island economy.

Wuzhishan Islands Bird Nature Reserve

As a provincial marine bird nature reserve, in 2005, various tasks were solidly advanced, and the infrastructure conditions of the reserve were improved. and management methods continue to improve, and marine bird resources have been effectively protected.

In order to bring the construction and management of the protected area to a higher level, the Marine and Fisheries Department has provided certain funding for the project.

5.2 Artificial Reefs

Artificial reef construction is to restore and improve the marine ecological environment, create suitable environmental conditions for marine life, cultivate biodiversity in the sea area, restore marine resources and increase catch and promote the sustainable development of fishery economy.

The construction of artificial reefs in Zhoushan City started early in Zhejiang. In 2003, Zhoushan City built the province’s first recreational artificial reef in Putuo District.

In 2005, our city launched another 43 modified and scrapped fishing boats in the Zhujiajian recreational artificial reef area, forming 16,000 empty cubic meters of new reefs, and the cumulative reef volume has reached 220,000 empty cubic meters. meters, becoming one of the largest artificial reefs in the country.

Shengsi Ma’an Islands released 426 3×3×3 cubic meter cement blocks, forming a reef of 30,000 empty cubic meters. Daishan Xiushan released 18 scrap fishing boats, forming a reef of 13,000 empty cubic meters.

5.3 Breeding and releasing

In 2005, Donghai District, Zhejiang Provincial Ocean and Fisheries Bureau, and Zhoushan City invested millions of yuan in carrying out stocking and releasing in Zhoushan waters.** * Released 130 million large yellow croakers, Japanese prawns, jellyfish, swimming crabs, sea bream and other species.

In addition, in order for the released seedlings to survive smoothly, a temporary breeding and releasing protection zone of 3,600km2 has been established in our city's sea area, and it is stipulated that from May 15 to September 15, operations that affect resources are prohibited. Operation.

Through the implementation of stock enhancement and release work and the establishment of temporary stock enhancement and release protection zones, the fishery resources in Zhoushan waters have been partially restored.

5.4 Recycling of used batteries

In 2005, the marine and fishery departments of Zhoushan City and Shengsi County further launched the recycling of used batteries.

Together with the Zhoushan Marine Environment Monitoring Center, we have set up waste battery recycling bins near docks, schools and communities in key fishery towns in Shengsi County, and have taken measures such as increasing publicity and giving certain rewards. Mobilizing the enthusiasm of fishermen in recycling used batteries, the recycling work of used batteries has been effectively carried out.

Currently, nine fixed waste battery recycling bins have been set up in Shengsi Wulong, Caiyuan and other places, and more than 30,000 batteries have been recycled.

5.5 Fishing moratorium during the summer season

During the fishing moratorium during the summer season in 2005, Zhoushan City’s marine and fishery departments at all levels strengthened joint law enforcement on land and sea, strictly prevented and investigated, and strictly administered heavy penalties, achieving the goal of ensuring the city’s Fu Xiu has zero violations.

At the same time, according to the "2005 Fuxiu Pre-Arrest Law Enforcement Management Plan", it was implemented into specific actions and the scheduled plan was successfully completed.

5.6 Fishermen’s Conversion of Industry

2005 is the fourth year for fishermen to change their profession. The Zhoushan City Ocean and Fishery Department vigorously implemented the fishermen’s conversion project. 2,008 fishermen were converted throughout the year. 323 fishing boats were scrapped and dismantled. By the end of 2005, the total number of fishermen in Zhoushan City had reached 7,674, 1,703 fishing boats were scrapped, and the horsepower target was 182,000 kilowatts, ranking first among prefecture-level cities in the country.

The promotion of fishermen’s conversion to other industries has effectively reduced the intensity of ocean fishing.

5.7 Ecological Breeding

Zhoushan City’s marine and fishery authorities have intensified ecological breeding efforts, promoted standardized breeding and scientific breeding models, and actively implemented the “Three Belts and One District” ecological breeding demonstration With the construction of the district, all bases in the city's advantageous industrial belts have passed the certification of pollution-free bases, with an additional area of ??8,085 acres of pollution-free bases.

6. Marine ecological environment supervision and management

6.1 Relevant local regulations and supporting system construction

In 2005, the Zhoushan Municipal Ocean and Fisheries Bureau completed the "Zhoushan Municipal Oceanographic and Fishery Bureau" The preparation of the "Marine Ecological Environment Protection and Construction Plan" and the "Zhoushan Planning Outline for Building my country's First-Class Modern Fishery Base". Currently, the two plans have passed the demonstration and have been submitted to the municipal government for approval.

6.2 Supervision and management of the marine environment of sea-related engineering construction projects

In order to implement the "Zhejiang Provincial Marine Environmental Protection Regulations", promote the environmental supervision and management of municipal and county sea-related engineering construction projects , standardize the environmental impact assessment management of sea-related projects, strictly review (approval) work of sea-related engineering projects, improve and improve the review and approval system, strictly control environmental impact assessment reports, and conduct tracking and monitoring of major sea-related engineering construction projects .

In 2005, illegal sea sand mining and illegal sea-related engineering projects were dealt with, such as the illegal sand mining near Yushan Island in Daishan and the illegal reclamation incident on Cezi Island.

The company was ordered to complete additional procedures for the illegal cofferdam explosion and waste dumping incident at Yongyue Shipyard.

In addition, projects that clearly violated marine functional zoning were dealt with.

6.3 Fishery law enforcement

In terms of environmental management of fishery waters, we must seize the two important links of fishing ports and fishing vessels, and combine fishery safety inspections to effectively manage fishing waters and fishing vessels.

Strengthen publicity and education to raise environmental awareness among fishermen; strengthen anti-pollution management of ocean-going fishing vessels, and configure oil and wastewater separation devices in accordance with regulations to protect the marine environment; intensify supervision and inspection of marine ports, and investigate and deal with illegal pollution discharges .

7. Countermeasures and Suggestions

In view of the marine environmental quality status of Zhoushan City in 2005, the following suggestions are made:

Continue to strengthen the supervision and monitoring of land-based sewage outfalls into the sea.

Supervision and monitoring of selected key land-based sewage outlets in 2005 showed that the environmental quality of the sewage outlets and their adjacent sea areas cannot be ignored, and excessive and illegal discharges are serious.

Therefore, it is necessary to continue to strengthen the supervision and monitoring of our city’s land-based sewage outlets into the sea and the supervision and management of sewage discharge units. New and expansion projects must strictly conduct environmental impact assessments to effectively achieve the "three simultaneities"; at the same time, each Relevant departments must strengthen cooperation and increase the control and treatment of land-based pollutants entering the sea. In particular, as marine oil pollution becomes increasingly serious, control of oil pollution sources must be strengthened.

Strengthen the control of the total amount of pollutants and ensure that corporate sewage discharge meets standards.

Strengthen and implement the control of the total amount of pollutants and the standard discharge of enterprise sewage. The standard discharge of each industrial enterprise should be closely linked to the environmental capacity of the pollutant-receiving sea area. Each sewage outlet should strictly implement the sewage-receiving outlet. The total amount of pollutants is controlled and emissions meet environmental capacity standards, making positive contributions to the construction of Zhoushan as a "strong marine economic city" and an "ecological city".

Strengthen marine environmental protection and monitoring.

In order to better protect our city’s marine environment, we should continue to strengthen our city’s marine environment protection and monitoring work in 2006, especially on the basis of trend monitoring in coastal waters. Focus on strengthening the surveillance and monitoring of sensitive areas of the marine ecological environment, key harbors, and key polluted areas such as sewage outlets.

Increase the protection of key marine protected areas.

Promote the construction process of Zhejiang Shengsi Ma'an Islands Marine Special Reserve and Zhejiang Putuo Zhongjieshan Islands Marine Special Reserve, and incorporate the protection work of the protected areas into legalization and procedures as soon as possible.

Continue to strengthen the surveillance and monitoring of marine pollution incidents and marine disasters such as red tides and storm surges.

Carry out and improve the monitoring and assessment of marine fouling events, and further improve the early warning and forecasting of marine natural disasters such as red tides, storm surges, and disastrous waves.

Improve marine disaster emergency response systems and measures, actively carry out relevant marine disaster technology research, and effectively reduce marine disaster damage.

Strengthen the supervision of coastal projects, marine waste dumping areas and other sea-related projects.

Carry out environmental impact assessment, scientific demonstration, and strict approval of sea-related projects in accordance with the law, and actively carry out environmental impact tracking and monitoring of sea-related projects.

Strengthen the construction of ocean monitoring and forecasting systems.

In view of the increasing trend of marine disasters, marine accidents and emergencies, and the worsening of marine pollution, marine monitoring and forecasting are even more important.

At present, the capabilities and methods of ocean monitoring and forecasting are far from meeting the actual needs.

Therefore, it is necessary to increase investment and form as soon as possible a city-wide, reasonably laid out and relatively complete city-wide marine environment monitoring and forecasting center with the municipal-level marine environment monitoring and forecasting center as the hub and county-level stations as the backbone, including the three major islands. Marine environment monitoring and forecasting system.