1. 破坏海洋生态
其主要危害如下：
1. 水环境污染：石油会形成一层油膜覆盖在海面上，影响海洋生物的正常呼吸和生长，还可能影响海水温度和水底沉积物的生态功能。
2. 海洋生物死亡：石油污染会使海洋生物中毒，破坏生物体的免疫系统，并阻止海洋生物精细的新陈代谢，最终导致生物无法存活。
3. 损害公共设施和经济损失：大规模的石油泄漏将影响港口、航道、渔场等公共设施，妨碍海上交通和运输，对旅游业、渔业和沿海产业等造成严重损失。
4. 人类健康危害：人类通过饮用或摄食受污染的海产品，或通过和不洁水体接触而感染一些有毒有害的病菌和毒素，危害健康安全。
5. 生态环境破坏：石油污染会破坏海洋生态平衡，损失大量的生物多样性，使大自然生态系统的稳定性受到威胁。
因此，为了保护海洋环境，预防和治理海洋石油污染，我们需要全球联合起来，加强科技研究，探索新技术、新方法、新产品，减少人类活动对海洋的破坏，维护全球环境的持续稳定和人类的生存发展。
2. 破坏海洋生态刑法规定
禁渔期非法捕捞处罚标准：如果犯罪嫌疑人违反保护水产资源法规，在禁渔区、禁渔期或者使用禁用的工具、方法捕捞水产品，情节严重的，就构成了非法捕捞水产品罪。
根据我国《刑法》的相关规定可以知道，如果构成非法捕捞水产品罪，情节严重的，依法判处三年以下有期徒刑、拘役、管制或者罚金。其中，如果符合下面几个情形之一的，就属于“情节严重”：
1、非法捕捞水产品超过一万公斤以上或者价值十万元以上；
2、非法捕捞有重要经济价值的水生动物苗种、怀卵亲体达到二千公斤以上或者价值二万元以上的；
3、在水产种质资源保护区内捕捞水产品达到二千公斤以上或者价值二万元以上的；
4、在禁渔区域内，使用禁用的工具或者方法捕捞；
5、在禁渔期间，使用禁止使用的工具或者方法捕捞；
6、在公海使用禁用渔具从事捕捞作业，造成严重影响；
7、其他情节严重的情形。
本罪侵犯的客体是国家保护水产资源的管理制度。水产资源，包括具有经济价值的水生动物和水生植物，是国家的一项宝贵财富。为了加强对水产资源的保护，国家通过立法对水产资源繁殖、养殖和捕捞等方面作了具体的规定。国家鼓励、扶持外海和远洋捕捞业的发展，合理安排内水和近海捕捞。在内水、近海从事捕捞业的单位和个人，必须按照捕捞许可证关于作业类型、场所、时限和渔具数量的规定进行作业。不得在禁渔区和禁渔期进行捕捞，不得使用禁用的渔具、捕捞方法和小于规定的最小网目尺寸的网具进行捕捞。急功近利，竭泽而渔，非法捕捞水产品，破坏国家对水产资源的管理制度，危害水产资源的存留和发展。因此，必须依法对非法捕捞水产品的犯罪予以惩罚。
法律依据：
《刑法》第三百四十条 非法捕捞水产品罪，违反保护水产资源法规，在禁渔区、禁渔期或者使用禁用的工具、方法捕捞水产品，情节严重的，处三年以下有期徒刑、拘役、管制或者罚金。
3. 破坏海洋生态环境的例子
1、垃圾污染
工业冷却水和工程残土、垃圾及疏浚泥等。前者入海后能提高局部海区的水温，使溶解氧的含量降低 ，影响生物的新陈代谢，甚至使生物群落发生改变；后者可破坏海滨环境和海洋生物的栖息环境。
2、噪声污染
利用天然声纳进行导航和捕猎，让无脊椎动物深受其害。勘探船产生的声音污染对头足类动物以及其他海洋动物的生存造成不利影响。
3、过度捕捞
人类的捕鱼活动导致海洋中生存的某种鱼类种群不足以繁殖并补充种群数量。现代渔业捕获的海洋生物已经超过生态系统能够平衡弥补的数量，结果使整个海洋系统生态退化。
4、冰川融化
由于冰盖的融化，奇特的低盐度海水正在慢慢的消失，截止到2002年， 96%的低盐度栖居环境已经消失殆尽。大部分以冰川径流作为供水源的地区将会发生严重的缺水危机。
5、石油泄漏污染
石油污染在海洋表面形成面积广大的油膜，阻止空气中的氧气向海水中溶解，同时石油的分解也消耗水中的溶解氧，造成海水缺氧，对海洋生物产生危害，并祸及海鸟和人类。
4. 破坏海洋生态系统
1、工业废气排放污染大气环境，导致酸雨和温室效应。
2、伐木、破坏植被，破坏生物栖息环境，不利于温室气体的吸收。
3、任意捕杀野生动物，破坏生物多样性。
4、城市的光污染，破坏生物生态环境，如候鸟迷失方向。
5、化肥农药的使用，污染土地资源和水资源。
6、能源开采方式不当，破坏地标植被，污染周边环境。
7、过度捕捞鱼类，向海洋排放废弃物，破坏海洋生态环境。
5. 破坏海洋生态的事例
对海洋生态系统的破坏主要表现在：（
1）渔业捕捞过度和海水养殖管理不善。海洋捕捞产量的迅速增加是机动渔船大量增加的结果。但是，逐年增长的捕捞力量主要集中在近海渔场，造成近海渔业资源开发利用过度。过度的开发利用导致优质鱼类资源严重衰退，渔获物中主要经济鱼类所占比例逐年减少，个体也趋向小型化、低龄化，低质小杂鱼所占比例逐年增加。
有些地区的海水养殖业管理不善，出现了污染海洋生态环境的倾向，如养殖过程中产生的废水造成海水有机物污染和富营养化；大量采捕饵料生物，使部分滩涂贝类大量减少，破坏了正常的食物链；等等。
（2）滩涂围垦和填海造陆夺走了大片海洋生境。沿海滩涂大量围垦和人工填海造陆等，不仅使许多海洋动物失去了大面积的栖息地、产卵地、育苗场、索饵场
6. 破坏海洋生态行为
例子:
马里温岛的猫灾
马里温是印度洋上的一个小岛,1945年,南非的第一支探险队来到这里,随船来的几只老鼠也悄悄溜上岸,到了1948年,老鼠成了岛上的霸主,探险队运进了5只猫捕鼠,可是海鸟的味道比老鼠好,猫不抓老鼠却吃鸟,结果猫繁殖到2500只,鸟遭殃了,一年被吃60万只.
夏威夷的蜗牛灾
20世纪30年代,一些商人把非洲的大蜗牛运到夏威夷群岛,供人养殖食用.有的蜗牛长老了,不能食用,就被扔在野外,不到几年,蜗牛大量繁殖,遍地都是,把蔬菜、水果啃得乱七八糟.人们喷化学药剂,连续15年翻耕土地也不能除净.
华盛顿州的金鱼灾
美国人长期从日本进口金鱼,1973年,一些金鱼无意间掉落华盛顿州的水里,然后大量繁殖,几年后,金鱼霸占了10个湖泊；湖中的鳟鱼无法与金鱼夺食物,大量减产,杀鱼剂又杀不死金鱼,渔民叫苦连天.
西班牙的螃蟹灾
1976年,西班牙从美国引进5万只蟹苗,放养在一条河的三角洲.几年,繁殖到几亿只,而当地每年最多只能捕400万只,供人食用.稻田里的水顺着密密麻麻的蟹洞漏干；螃蟹吃掉水中的鱼虾、水草、浮游生物,稻苗,鱼绝了,鸟没有吃的,也不在这里停留了.
澳大利亚兔灾
兔子并不是澳大利亚土生的,在1859年以前,那里还没有兔子.但在那一年,有一个农民从英格兰带来了一群野兔,共有24只.他完全没有料到,他的这一举动将要引起一场农业灾难.
在澳大利亚,兔子几乎没有什么天敌,所以经过几十年它们已成为一个大问题.它们吃庄稼,毁坏新播下的种子,啃嫩树皮和牙,并且打地洞损坏田地和河堤.筑篱笆也不能阻止它们侵入农民的田地.在几十年时间里,澳大利亚的农业遭受了惨重的损失.
直到1950年,人们又尝试了一种控制野兔的新方法,一种能杀死兔子的病,即粘液瘤病被引入澳大利亚.科学家先将该病传染给蚊子,然后经蚊子再传染给兔子.粘液瘤病一经引进,它便在整个野兔群中快速传播.在澳大利亚东南地区,几乎80%的野兔群被消灭了.
7. 破坏海洋生态环境罪量刑
海狗属于二类保护动物，是世界野生动物保护协会认定的濒危动物，资源极其珍贵。所以，捕杀海狗，情节严重的会被判刑。
海狗是生活在海洋里的哺乳动物，因其体型像狗，因此得名海狗。
海狗包括2属8种。体长150-210厘米，体重21-26千克。皮毛较浓密、光滑，又称“皮毛海狮”。体呈纺锤形。头部圆，吻部短，眼睛较大，有小耳壳，体被刚毛和短而致密的绒毛，背部呈棕灰色或黑棕色，腹部色浅，四肢呈鳍状，适于在水中游泳。后肢在水中方向朝后，上陆后则可弯向前方，用四肢缓慢而行。
8. 破坏海洋生态环境的危害
海洋污染（marine pollution）通常是指人类改变了海洋原来的状态，使海洋生态系统遭到破坏。有害物质进入海洋环境而造成的污染，会损害生物资源，危害人类健康，妨碍捕鱼和人类在海上的其他活动，损坏海水质量和环境质量等。
海洋面积辽阔，储水量巨大，因而长期以来是地球上最稳定的生态系统。由陆地流入海洋的各种物质被海洋接纳，而海洋本身却没有发生显著的变化。然而近几十年，随着世界工业的发展，海洋的污染也日趋严重，使局部海域环境发生了很大变化，并有继续扩展的趋势。
9. 破坏海洋生态环境
有影响。
氯乙烯污染物有持久性，其穿越海水边界，使得氢乙烯的影响会在海洋中聚集并引发气候变化。
此外，氢乙烯泄漏会对海洋生物生态环境产生不利影响，从而破坏海洋生物多样性，破坏全球生态平衡。
10. 人类破坏海洋生态
很多人类活动都对海洋生态造成了破坏，以下是一些主要的例子：
1. 过度捕捞： 过度捕捞会导致某些物种数量的快速下降，分布范围变小，并可能导致生态系统倒塌。
2. 海洋污染： 由于人类活动引起的海洋污染，比如废弃物的排放、工业废水、化学物质和石油泄漏等，会导致海洋中毒、酸化和死亡。
3. 气候变化： 气候变化对海洋生态产生了重大影响，比如海平面上升、海洋温度升高和酸化等，都对许多生物造成了直接和间接的影响。
4. 海洋开发： 海洋开发包括海洋石油、天然气勘探和开采、海洋能源利用、海洋旅游等，会导致海洋生态破坏。
5. 捕鱼工具和渔业管理的不当使用： 不当使用捕鱼工具和渔业管理不当都会对海洋生态造成破坏。”
这些活动对海洋生态环境造成的影响需要我们加以关注和引起重视，通过积极的行动保护海洋生态环境。
11. 破坏海洋生态平衡的英文
Pollution
Sea pollution is becoming an increasing problem for our planet and we have a responsibility to reduce sea pollution.
I need to describe the problem. Our ship currently dumps all its rubbish into the sea.It's easy to result in huge endanger. First of all, Non-organic substances such as plastic bags kill fish and whales. Because fish get trapped and whales cannot digest them. Secondly some rubbish is inherently toxic.
I can suggest some solutions. First and foremost we can create a better system of disposing of rubbish for instance. We ought to store rubbish. Next, we are supposed to make ships environmentally and friendly. A case in point is that we should stop providing plastic bags.
We must act now before it is too late!
海洋污染英语作文二：Reduce Sea Pollution
Several problems are caused by the non-organic substance. We ought not to pour wastes into the ocean, because it not only pollutes the ocean, but also lead to a series of harmful consequence. First and foremost, the non-organnic things, for instance, plastic bags, may kill fish and whales. Second, fishes can't digest them. Finally, some of the rubbish is inherently toxic, they will posion marine life.
We must take actions to protect our whale from dying. One thing we should do is creating a better system of disposing of rubbish. Another effective solution is making ships environmentally friendly. Sypermarkets shall stop the giving of plastic bags.
As a captain of the ship, you should spare no efforts to think more helpful ideas and stop dumping rubbish from now on. We all need to raise awareness of these problems. It now becomes necessary that we must act now, before it is too late!
海洋污染英语作文三：Sea pollution
Between 75 and 80% of marine pollution is caused by land, particularly agriculture. 30% of this is from the atmosphere. Around 12% of the pollution is caused by maritime transport.
In South America, 98% of domestic wastewater ends up, untreated, in the sea. The countries along the Mediterranean Sea throw 50 million tons of waste into it every year and the Chinese throw 60 million tons of waste into the Yellow sea daily. Over half of the hydrocarbon discharge comes from continents, 5% comes from oil tanker accidents, 20% comes from waste and other ship-related accidents, 4% from sea exploitation and 11 to 15% is due to natural causes. Accidental pollution through hydrocarbon is significantly decreasing and only represents a small percentage of waste through degassing estimated at between 1.5 and 3 million tons of oil a year. In 2003, according to the WWF, between 0.7 and 1.3 million tons of oil were spread by degassing in the Mediterranean. According to the Ifremer (the French Institute for Exploitation of the Sea), coastal water pollution cost the world economy almost 12.8 billion dollars in 2006.
Marine pollution is the result of products being thrown into seas and oceans, mostly by mnkind: domestic waste (sewage and rubbish, pollutants in runoff water...), industrial waste (hydrocarbons, metals, synthetic chemical and organic substances, radionuclides...) and agricultural waste (fertilisers, pesticides...).
This includes water pollution and marine sediments, and more generally all damage to marine ecosystems caused by harmful substances being discharged into the sea, either by their nature or their quantity.
海洋污染英语作文四：Sea Pollution
Marine environment is one in water, seawater tolerance hydrolyzate and suspended solids, seabed sediment and marine organisms, including complex systems. Ocean rich biological resources, mineral resources, chemical resources and power resources is an indispensable resource treasure house of human beings, with human survival and development of the relationship very close.
The main objective of the current marine conservation is to protect the living marine resources, so as not to failure, in order for human sustainable use. In particular, give priority to protect those valuable and critically endangered marine life. According to the UN for investigation, due to overfishing, accidental capture and killing of non-target to allow hunting of marine, coastal shoreline construction, mangrove deforestation, widespread marine pollution, at least the world's 25 most valuable fishery resources depleted, whales, sea turtles, manatees and many other marine animals face extinction risk. Is expected that with the expansion of the scale of ocean development,Marine living resources are likely to cause more damage.
The task of the first marine protected right to stop over-exploitation of living marine resources and secondly to protect the habitat of marine life or habitat, in particular, their migration, spawning, foraging, avoiding predators coast, tidal flats, estuaries, coral reefs, it is necessary to prevent the heavy metals, pesticides, oil, organic and easy to produce nutrients such as eutrophication of marine pollution. Preservation of the marine living resources of the natural regeneration capacity and water purification capacity, preservation of the marine ecological balance, to ensure sustainable human development and utilization of the oceans.
海洋污染英语作文五：Polluting the seas
The seas and oceans receive the brunt of human waste, whether it is by deliberate dumping or by natural run-off from the land.
In fact over 80% of all marine pollution comes from land-based activities and many pollutants are deposited in estuaries and coastal waters. Here the pollutants enter marine food chains, building up their concentrations until they reach toxic levels. It often takes human casualties to alert us to pollution and such was the case in Minimata Bay in Japan when many people died as a result of a pollutant building up in food chains. A factory was discharging waste containing methyl mercury in low concentrations into the sea and as this pollutant passed through food chains it became more concentrated in the tissues of marine organisms until it reached toxic levels.
As a consequence 649 people died from eating fish and shellfish contaminated with mercury and 3500 people suffered from mercury poisoning.
海洋污染英语作文六：Sea Pollution
From the overall situation, wastewater emissions growth speed. Is expected in 2000 will reach 666 tons. City life sewage volume will continue to increase, in 2000 reached about 783 tons. The wastewater of low (estimated at 20% ~ 30%),most of untreated wastewater directly or indirectly discharged into the water body, the serious pollution of water resources. China's seven major river systems in nearly half of serious pollution, city section of river water qualitygenerally exceed the standard 86%. The polluted water, more serious is the Huaihe, Haihe, Liaohe, Songhua River, the downstream Yangtze River and the Pearl River Delta industries in developed region.
River city section of riverpollution, heavy on the river, north to south. In 1990, 94 river city section of evaluation, 65 are subject to different degrees of pollution, accounting for 69.1%, the main pollutants ammonia nitrogen, volatile phenol and oxygen consumption of organic matter. According to the survey, 700000000 peopledrinking water the Escherichi a coli exceed the standard, 164000000 people drink organic pollution of water, 35000000 people nitrate drinking water exceed the standard.
Huaihe is one of the most polluted rivers. Huaihe in the evaluation of the 2000kilometers of the river, 78.7% river does not meet the drinking water standard,the 79.7% section does not meet the standard of fishery water, 32% do not meet the standard of irrigation water. According to statistics, the national 3000 heavily polluting enterprises, enterprises of wastewater discharge of industrial pollution,Huaihe River Basin accounts for 160. A sewage units 1.55 182 towns within the basin, industrial wastewater emissions of 1610000000 cubic meters, 700000000 cubic meters of urban living water emissions. Huaihe sewage irrigation farmland,causing serious crop production; in 1989 the occasion of the Spring Festival, the sewage discharge upstream gate opening, the tap water in Huainan, Bengbu twocity is seriously polluted and not drinking, Huaihe basin, the public drinking watercrisis, people Voices of discontent.
Huaihe basin in many areas of cancer incidence rate than the normal area than 10 times to hundreds of times, some villages in 2/3 of hepatomegaly. At the same time, due to the pollution of the estuary, anadromous fish resources has been damaged, the sharp drop in output, part of the in
