关于海洋的小故事100字左右
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A. 英语作文海洋小故事
Pollution
Sea pollution is being an increasing problem for our pla and we have a responsibility to rece sea pollution.
I need to describe the problem. Our ship currently mps all its rubbish into the sea.It's easy to result in huge endanger. First of all, Non-anic 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:Rece Sea Pollution
Several problems are caused by the non-anic 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-annic 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 mping rubbish from now on. We all need to raise awareness of these problems. It now bees necessary that we must act now, before it is too late!
海洋污染英语作文三:Sea pollution
Beeen 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 es from continents, 5% es from oil tanker accidents, 20% es from waste and other ship-related accidents, 4% from sea exploitation and 11 to 15% is e to natural causes. Accidental pollution through hydrocarbon is significantly decreasing and only represents a *** all percentage of waste through degassing estimated at beeen 1.5 and 3 million tons of oil a year. In 2003, according to the WWF, beeen 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 procts being thrown into seas and oceans, mostly by mnkind: domestic waste (sewage and rubbish, pollutants in runoff water...), instrial waste (hydrocarbons, metals, synthetic chemical and anic 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 ani *** s, including plex 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, e 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, anic and easy to proce 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 mping or by natural run-off from the land.
In fact over 80% of all marine pollution es 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 ani *** s 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 instries 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 anic matter. According to the survey, 700000000 peopledrinking water the Escherichi a coli exceed the standard, 164000000 people drink anic 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 instrial pollution,Huaihe River Basin accounts for 160. A sewage units 1.55 182 towns within the basin, instrial wastewater emissions of 1610000000 cubic meters, 700000000 cubic meters of urban living water emissions. Huaihe sewage irrigation farmland,causing serious crop proction; in 1989 the occasion of the Spring Festival, the sewage discharge upstream gate opening, the tap water in Huainan, Bengbu ocity 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, e to the pollution of the estuary, anadromous fish resources has been damaged, the sharp drop in output, part of the in
B. 关于海洋的故事
1)当海参遇到敌害进攻无法脱身时,可以用分身法逃命,内脏迅速从 *** 抛出。天敌看到颜色鲜艳的美味,就会舍本逐末地扑向海参的内脏。弃内脏的海参还可以活着。
(2)梭子鱼可分三种。一种是台湾梭干鱼,体侧有两条褐色带,尾鳍为黄色,身长40~50厘米。居住于珊瑚礁水域及内湾浅水内,喜欢群居,时速60~70公里。一种是大和梭干鱼,具有沿岸性,经常群居与于水的中、表层。
(3)乌贼被称为海中"化妆师",因为它实在太爱"打扮"了。乌贼十分善于利用体色表达感情。它体色发生突变,多半是因为感到恐惧和激动。到繁殖季节,雌乌贼用五彩缤纷的颜色表达对异性的爱慕。它们常常在自己的躯干上涂上一道道斑纹,犹如穿上了漂亮的睡衣。在海洋生物中, 乌贼的游泳速度最快。它是靠肚皮上的漏斗管喷水的反作用力飞速前进,能跳出水面高达7米到10米。乌贼肚子里藏有墨汁,这在动物界是罕见的。墨囊在乌贼的肚子里,囊内有墨腺,能分泌浓厚的墨汁,而且喷出后能迅速补充。当乌贼和强敌突然相遇时,它就利用这种特殊的防御武器使自己转危为安。
(4)多种多样的贝壳螺壳,形状奇特,色彩斑谰。其中虎斑贝、白玉贝、夜光贝、五爪螺、猪母螺、珍珠贝、贞洁螺、唐冠螺、七角贝、猪耳壳,以及可作烟灰缸的马蹄螺、渔民作用号角的大角螺等等,都是惹人喜爱的天然工艺品,用光滑油亮的海贝壳雕琢、镶嵌制成的各种画屏、器具、摆设等,具有色泽明丽自然,格调名贵雅致的特色。珍珠贝的外形呈卵圆形或圆盘形,有轮脊,靠近边缘的轮脊上有鳞片。铰合部较长,两端都有小齿,两壳的中央面一般呈现浅褐色或者灰色,有浓密的红褐色放射纹;内面有珠母光泽。
珍贵的珊瑚资源
1.珍贵珊瑚——红珊瑚
过去给皇帝的贡品有红珊瑚,治病入药有红珊瑚,佛教徒顶礼膜拜的佛珠是红珊瑚,清朝二品文官武将的顶戴是红珊瑚。总之,人们认为红珊瑚是个宝,红珊瑚到底是何物?性状如何?人们却知之甚少,长期以讹传讹,再加之神秘的渲染,使人更感到扑朔迷离。
红珊瑚是海洋低等无脊椎动物,属于腔肠动物门、珊瑚虫纲、八放珊瑚亚纲,软珊瑚目、硬轴珊瑚亚目、红珊瑚科、红珊瑚属的海洋动物。人们见到的红珊瑚是残留的骨骼。
(1)红珊瑚的生物学特点
红珊瑚生长要求的生境条件,从地中海——大西洋区和太平洋区的调查得知,它们要求有硬底、流急、无沉积物(特别是无陆源性沉积物)、水清、低光照、低温(8~20℃),其中地中海红珊瑚场最适温度是10℃。
(2)生长慢、寿命长
红珊瑚从幼虫附着后10~12年才性成熟,每年夏季产卵,其浮浪幼虫是负趋光性。由于红珊瑚较其他无脊椎动物长寿,其生长速度慢、成体死亡率低都是必然的趋势。
2.竹节珊瑚
竹珊瑚由于其中轴石化,及浅棕色的节与白色节间相隔形成,颇似天然盆景石竹,陈列在客厅,特别富有诗意,我国民间已广泛应用
形态各异的珊瑚 柳珊瑚
珊瑚礁的形成
珊瑚礁或珊瑚岛是珊瑚虫的遗骸经过地质年代的作用积累形成的。
我们把形成珊瑚礁的珊瑚统称为造礁珊瑚。大多数造礁珊瑚是群体生活的,群体中的每个个体都很小,一般直径为1~3毫米,单个个体的结构与海葵相似。它们的骨骼成分均为碳酸钙,由个体的基盘及体柱下端表皮细胞向外分泌钙质,共同构成一个杯状骨骼,杯状骨骼形成时,个体基盘部分分泌钙质形成基板,体柱下端分泌的钙质形成杯槽的四周,群体之间珊瑚与珊瑚杯底相连,杯壁共同拥有,又以出芽的方式繁殖向上生长,一般在相同条件下,块状珊瑚每年增长仅0.5~2毫米厚度,枝状珊瑚能长10~20厘米,这样无数的小珊瑚虫不断地生长、繁殖,经过许多年就长成了我们看到的一块块、一束束珊瑚的模样。它们再与形成钙质骨骼的其它动植物的尸体,如软体动物、腕足动物、棘皮动物、石灰藻等,一起经过地质年代的堆积作用,才能在海洋中形成礁石、岛屿。
并不是所有的海域都能形成珊瑚岛的。珊瑚的生长发育要求具有严格的生态条件。
首先,温度是影响造礁珊瑚生长的限制性因素,只有海水的年平均温度不低于20℃,珊瑚虫才能造礁,其最适宜的温度范围是22℃~28℃,所以珊瑚礁、珊瑚岛都分布在热带及亚热带海域,我国的西沙群岛、南沙群岛、中沙群岛均为珊瑚所形成的岛屿。
其次,造礁珊瑚要求一定的海域深度,它们主要生活在浅海区,因为在浅海区日光可以很好地穿透、射入海底,有利于珊瑚体内共生藻类的光合作用;风浪、海水的震荡为珊瑚提供了丰富的食物源及充足的氧气,并易于移走代谢产物。
另外造礁珊瑚要求生活在较清洁的海水中,如果过多的陆源物质污染海水,便会抑制珊瑚取食、呼吸等正常生理作用的进行。所以珊瑚礁一定是在热带、亚热带海域,在阳光充足、水质清澈的浅海区形成。
海洋动物也要睡觉
众所周知,陆地上的动物是要睡觉的,尽管他(它)们睡觉的姿态和方法不同。那么,海洋中的动物是不是也要睡觉呢?回答是肯定的,也要睡觉,它们睡觉的姿态和方法就更特别。
其实,睡眠只不过是作较长时间休息的一种特殊方法。不管是陆地上的动物还是海洋中的动物,都需要进行休息,包括睡眠。这种睡眠,陆地上的动物一般时间较长,容易被人察觉而海洋中的动物大多时间很短,就难以被人发现了。例如,鱼类的睡眠时间就非常短,有的仅几分钟,有的甚至只有几秒钟,人们眼一眨的功夫,对有些鱼来说,就已睡了一觉。
海洋中除鱼类外,还生活着许多哺乳动物。它们睡觉的方法虽然与鱼类不同,但同样要睡觉。例如,海豚睡觉时,多半在夜里浮在水下1英尺的地方,安安稳稳地进入梦乡,而它的尾巴,仍然会每隔约30秒钟,便摆动下,其作用有两个:一是使它的头能露出水面,吸一口空气;另一个是使它在水中的位置更加稳定,不受水流或波涛的影响。最有趣的是有一种阿佐基海豚,它们是用大脑两半球相互交替睡眠的:当一个半球在沉睡时,另一个半球却处于觉醒状态。过了一些时间,沉睡的则觉醒,觉醒的又沉睡,如果受到外界强烈 *** ,两半球将会立即觉醒。因此,它们始终能处于游泳状态,甚至在睡眠中游速也不会减慢。
海豹和海豚不同,它们既可以生活在水下,又可以爬到岸上活动。如果在地面睡觉,就和陆地动物相似;如果在水下睡觉,每做一次呼吸,就要醒来一次。这就是说,它们是在呼吸的间隙抽空睡觉。
海狗也是一种既能生活在海洋、又能生活在陆地的海洋动物。它们在陆地上睡觉时,可和陆地动物睡得一样甜美;在水下时,就和阿佐基海豚一样用大脑两半球轮流睡觉。
产于北太平洋海岸的海獭,会在海边用海草结成一张"床",围成椭园形,睡觉时就把身体藏在中间,腹部朝天。如果它对在某个地方睡觉感到满意,就会每天都到那个地方去睡。
生长在北冰洋中的海象,睡觉更与众不同。它睡觉时不是平卧,而是垂直在水中,头部则露在水面上。
令人喜欢的海狸,一般在白天睡觉,睡时仰着头,有时还磨牙。尤其是小海狸,睡觉最有趣,它们并排着睡,有的还把小脚掌枕在头下。
为什么说海洋是矿物的聚宝盆?
海洋里不仅蕴藏着丰富的石油,而且还是各种矿物的聚宝盆。现在从海底采出的石油已超过世界石油总产量的30%,可见其重要地位。海洋的矿藏也正在改变世界矿产的分布图。1991年初,联合国决定我国为开采海底矿藏的先驱国家,并划定夏威夷东南海域为我国的开采地区,因此我们更有必要了解这一聚宝盆,了解海底到底有哪些矿藏,它们是怎样分布的。
根据目前掌握的资料,海底的矿藏大致上可分为三大类:锰团块、热水矿床、钻壳。
锰团块,又叫猛结核、锰矿球,是以锰为主的多金属结核。它广泛分布在世界各大洋水深2000米至6000米处的洋底表层,以太平洋蕴藏量最多,估计为1.7万亿吨,占全世界蕴藏总量约3万亿吨的一半多。
锰团块在海底已度过了慢长岁月,由于存在环境的不同而拥有不同的尺寸和外形,其直径多数处于1至25厘米之间,重量有的可达几十公斤以上,它们像卵石一样堆积在深海的洋底。
据推算,海洋中全部锰团块含有的各种金属,其储量远远超过陆地上的储量。更重要的是, 锰团块是一种再生沉积矿物,它的储量还在不断增加,仅太平洋每年便可增长1000万吨。
尽管全世纪各大洋都分布有锰团块,但以赤道北面东太平洋海底的锰团块分布面积最广,富集度最高,而且金属品位也比较高。其中,从墨西哥西南到夏威夷南部的一条长达4600公里 ,宽900公里的海域里,海底表层密密麻麻布满了锰团块,平均密度为每平方米10公斤以上,镍、铜、钴的总品位超过3%,可谓遍地都是宝。
这一带海域地形比较平坦,海况条件也比较好,有利于开采作业,是目前各国进行科学研究和开采试验的主要场所。联合国分配给我国开采的海域也位于这一地区。
另外,南亚的西南海域、印度洋东部海域也是蕴藏锰团块较为丰富的地区。过去人们曾认为金属品位高的锰团块只富集于远离陆地的深海海底,但近来调查勘探表明,南太平洋一些小岛周围的海域里也蕴藏着数量可观的锰团块。
现在一般利用采矿船来开采锰团块。由装有深海电视的采矿机在海底收集锰团块,通过软管抽气像吸尘器一样,把锰团块经软管连续地吸到地面上的采矿能中,每天采矿量可达3000吨 。
海底地貌
如同陆地上一样,海底世界有高山,有平原,还有深沟峡谷。这个世界并不象人们所想像的或是象表面看起来那样平缓和宁静,相反却是地球上最活跃最动荡不安的地带。地震火山活动频繁,形成高山峻岭,只不过一切都掩盖在海水之下进行而已。
海底地形与陆地一样,有山岭、高原、盆地、丘陵等形态。海底地貌按洋底起伏的形态特征,大致可分为大陆架、大陆坡和大洋底三部分。大陆架是指陆地向海洋延伸的平浅海底。大陆坡是大陆架 与深海底之间较陡的陡坡。大洋底是海洋主要部分,有海岭、海脊、海底高原等正地形;也有海沟、海槽、深海盆地等负地形。
海盆:大洋的主体部分。洋底下凹并为海岭或海底隆起所分割的盆地。面积大,外形呈圆形或椭圆形,底部较平坦,深度3,000-6,000米(大多为4,000-5,000米)。覆盖着深海沉积,以化学沉积和生物沉积为主。
海底山脉:又称“海脊”或“海岭”。深海底部狭长绵亘的高地。长度可达上万公里,宽1,000-3,000公里,高2,000-4,000米。个别山峰出露水面成为岛屿,如此大西洋的亚速尔群岛,南大西洋的阿森松岛等。大西洋中央海底山脉,纵贯南北,山脉走向与大洋轮廓一致,呈S形。太平洋海岭分布在中部,南北绵延1万公里以上。印度洋海岭分布呈人字形。
海沟:大洋中水深超过6,000米的狭长陷落地带。长可达数千公里,宽一般在百公里左右,两侧坡度陡急。海沟常与海岭相伴分布。海岭出露水面成为岛屿,在太平洋西部和北部,一系列岛屿呈弧形,成岛弧。海沟一般在岛弧的凸面,邻近大陆沿海山脉或紧靠岛屿,大洋的边缘上。海沟多数分布在太平洋,尢以西海岸最著名。世界上最深海沟是西太平洋马里亚纳群岛东南侧的马里亚纳海沟,深达11,034米,长2,550公里,平均宽度70公里。海沟分布地区是地壳最不稳定地带,火山、地震频繁。象山港在浙江省象山县以北,自东北向西南,伸入陆地内部,长约50公里,宽仅6公里。港外有六横岛为屏障,形势险要,为优良港湾之一。
C. 海洋的故事(50字)
汹涌的浪潮,后浪推前浪。声似雷霆万钧,势如万马奔腾。大海霎时间变成了无边无内际的战场,海风吹着尖厉的“号容角”,海浪似乎是千百个英勇的战士,向海岸猛烈地进攻着,发出隆隆呼喊。岸上千斤重的巨石,只要被潮水轻轻一拂,就仿佛一下子“沉”到“海底”去了。一排排浪撞在岸上,溅起一片片浪花。
D. 以海洋为主题的小故事。
额?
海的女儿?
还是南方比较流行的妈祖?
楼主也不标清楚,到底要用来干什么,一点方向感都没有呢。
E. 海洋的故事
Pollution
Sea pollution is being an increasing problem for our pla and we have a responsibility to rece sea pollution.
I need to describe the problem. Our ship currently mps all its rubbish into the sea.It's easy to result in huge endanger. First of all, Non-anic 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:Rece Sea Pollution
Several problems are caused by the non-anic 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-annic 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 mping rubbish from now on. We all need to raise awareness of these problems. It now bees necessary that we must act now, before it is too late!
海洋污染英语作文三:Sea pollution
Beeen 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 es from continents, 5% es from oil tanker accidents, 20% es from waste and other ship-related accidents, 4% from sea exploitation and 11 to 15% is e to natural causes. Accidental pollution through hydrocarbon is significantly decreasing and only represents a *** all percentage of waste through degassing estimated at beeen 1.5 and 3 million tons of oil a year. In 2003, according to the WWF, beeen 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 procts being thrown into seas and oceans, mostly by mnkind: domestic waste (sewage and rubbish, pollutants in runoff water...), instrial waste (hydrocarbons, metals, synthetic chemical and anic 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 ani *** s, including plex 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, e 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, anic and easy to proce 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 mping or by natural run-off from the land.
In fact over 80% of all marine pollution es 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 ani *** s 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 instries 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 anic matter. According to the survey, 700000000 peopledrinking water the Escherichi a coli exceed the standard, 164000000 people drink anic 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 instrial pollution,Huaihe River Basin accounts for 160. A sewage units 1.55 182 towns within the basin, instrial wastewater emissions of 1610000000 cubic meters, 700000000 cubic meters of urban living water emissions. Huaihe sewage irrigation farmland,causing serious crop proction; in 1989 the occasion of the Spring Festival, the sewage discharge upstream gate opening, the tap water in Huainan, Bengbu ocity 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, e to the pollution of the estuary, anadromous fish resources has been damaged, the sharp drop in output, part of the in
B. 关于海洋的故事
1)当海参遇到敌害进攻无法脱身时,可以用分身法逃命,内脏迅速从 *** 抛出。天敌看到颜色鲜艳的美味,就会舍本逐末地扑向海参的内脏。弃内脏的海参还可以活着。
(2)梭子鱼可分三种。一种是台湾梭干鱼,体侧有两条褐色带,尾鳍为黄色,身长40~50厘米。居住于珊瑚礁水域及内湾浅水内,喜欢群居,时速60~70公里。一种是大和梭干鱼,具有沿岸性,经常群居与于水的中、表层。
(3)乌贼被称为海中"化妆师",因为它实在太爱"打扮"了。乌贼十分善于利用体色表达感情。它体色发生突变,多半是因为感到恐惧和激动。到繁殖季节,雌乌贼用五彩缤纷的颜色表达对异性的爱慕。它们常常在自己的躯干上涂上一道道斑纹,犹如穿上了漂亮的睡衣。在海洋生物中, 乌贼的游泳速度最快。它是靠肚皮上的漏斗管喷水的反作用力飞速前进,能跳出水面高达7米到10米。乌贼肚子里藏有墨汁,这在动物界是罕见的。墨囊在乌贼的肚子里,囊内有墨腺,能分泌浓厚的墨汁,而且喷出后能迅速补充。当乌贼和强敌突然相遇时,它就利用这种特殊的防御武器使自己转危为安。
(4)多种多样的贝壳螺壳,形状奇特,色彩斑谰。其中虎斑贝、白玉贝、夜光贝、五爪螺、猪母螺、珍珠贝、贞洁螺、唐冠螺、七角贝、猪耳壳,以及可作烟灰缸的马蹄螺、渔民作用号角的大角螺等等,都是惹人喜爱的天然工艺品,用光滑油亮的海贝壳雕琢、镶嵌制成的各种画屏、器具、摆设等,具有色泽明丽自然,格调名贵雅致的特色。珍珠贝的外形呈卵圆形或圆盘形,有轮脊,靠近边缘的轮脊上有鳞片。铰合部较长,两端都有小齿,两壳的中央面一般呈现浅褐色或者灰色,有浓密的红褐色放射纹;内面有珠母光泽。
珍贵的珊瑚资源
1.珍贵珊瑚——红珊瑚
过去给皇帝的贡品有红珊瑚,治病入药有红珊瑚,佛教徒顶礼膜拜的佛珠是红珊瑚,清朝二品文官武将的顶戴是红珊瑚。总之,人们认为红珊瑚是个宝,红珊瑚到底是何物?性状如何?人们却知之甚少,长期以讹传讹,再加之神秘的渲染,使人更感到扑朔迷离。
红珊瑚是海洋低等无脊椎动物,属于腔肠动物门、珊瑚虫纲、八放珊瑚亚纲,软珊瑚目、硬轴珊瑚亚目、红珊瑚科、红珊瑚属的海洋动物。人们见到的红珊瑚是残留的骨骼。
(1)红珊瑚的生物学特点
红珊瑚生长要求的生境条件,从地中海——大西洋区和太平洋区的调查得知,它们要求有硬底、流急、无沉积物(特别是无陆源性沉积物)、水清、低光照、低温(8~20℃),其中地中海红珊瑚场最适温度是10℃。
(2)生长慢、寿命长
红珊瑚从幼虫附着后10~12年才性成熟,每年夏季产卵,其浮浪幼虫是负趋光性。由于红珊瑚较其他无脊椎动物长寿,其生长速度慢、成体死亡率低都是必然的趋势。
2.竹节珊瑚
竹珊瑚由于其中轴石化,及浅棕色的节与白色节间相隔形成,颇似天然盆景石竹,陈列在客厅,特别富有诗意,我国民间已广泛应用
形态各异的珊瑚 柳珊瑚
珊瑚礁的形成
珊瑚礁或珊瑚岛是珊瑚虫的遗骸经过地质年代的作用积累形成的。
我们把形成珊瑚礁的珊瑚统称为造礁珊瑚。大多数造礁珊瑚是群体生活的,群体中的每个个体都很小,一般直径为1~3毫米,单个个体的结构与海葵相似。它们的骨骼成分均为碳酸钙,由个体的基盘及体柱下端表皮细胞向外分泌钙质,共同构成一个杯状骨骼,杯状骨骼形成时,个体基盘部分分泌钙质形成基板,体柱下端分泌的钙质形成杯槽的四周,群体之间珊瑚与珊瑚杯底相连,杯壁共同拥有,又以出芽的方式繁殖向上生长,一般在相同条件下,块状珊瑚每年增长仅0.5~2毫米厚度,枝状珊瑚能长10~20厘米,这样无数的小珊瑚虫不断地生长、繁殖,经过许多年就长成了我们看到的一块块、一束束珊瑚的模样。它们再与形成钙质骨骼的其它动植物的尸体,如软体动物、腕足动物、棘皮动物、石灰藻等,一起经过地质年代的堆积作用,才能在海洋中形成礁石、岛屿。
并不是所有的海域都能形成珊瑚岛的。珊瑚的生长发育要求具有严格的生态条件。
首先,温度是影响造礁珊瑚生长的限制性因素,只有海水的年平均温度不低于20℃,珊瑚虫才能造礁,其最适宜的温度范围是22℃~28℃,所以珊瑚礁、珊瑚岛都分布在热带及亚热带海域,我国的西沙群岛、南沙群岛、中沙群岛均为珊瑚所形成的岛屿。
其次,造礁珊瑚要求一定的海域深度,它们主要生活在浅海区,因为在浅海区日光可以很好地穿透、射入海底,有利于珊瑚体内共生藻类的光合作用;风浪、海水的震荡为珊瑚提供了丰富的食物源及充足的氧气,并易于移走代谢产物。
另外造礁珊瑚要求生活在较清洁的海水中,如果过多的陆源物质污染海水,便会抑制珊瑚取食、呼吸等正常生理作用的进行。所以珊瑚礁一定是在热带、亚热带海域,在阳光充足、水质清澈的浅海区形成。
海洋动物也要睡觉
众所周知,陆地上的动物是要睡觉的,尽管他(它)们睡觉的姿态和方法不同。那么,海洋中的动物是不是也要睡觉呢?回答是肯定的,也要睡觉,它们睡觉的姿态和方法就更特别。
其实,睡眠只不过是作较长时间休息的一种特殊方法。不管是陆地上的动物还是海洋中的动物,都需要进行休息,包括睡眠。这种睡眠,陆地上的动物一般时间较长,容易被人察觉而海洋中的动物大多时间很短,就难以被人发现了。例如,鱼类的睡眠时间就非常短,有的仅几分钟,有的甚至只有几秒钟,人们眼一眨的功夫,对有些鱼来说,就已睡了一觉。
海洋中除鱼类外,还生活着许多哺乳动物。它们睡觉的方法虽然与鱼类不同,但同样要睡觉。例如,海豚睡觉时,多半在夜里浮在水下1英尺的地方,安安稳稳地进入梦乡,而它的尾巴,仍然会每隔约30秒钟,便摆动下,其作用有两个:一是使它的头能露出水面,吸一口空气;另一个是使它在水中的位置更加稳定,不受水流或波涛的影响。最有趣的是有一种阿佐基海豚,它们是用大脑两半球相互交替睡眠的:当一个半球在沉睡时,另一个半球却处于觉醒状态。过了一些时间,沉睡的则觉醒,觉醒的又沉睡,如果受到外界强烈 *** ,两半球将会立即觉醒。因此,它们始终能处于游泳状态,甚至在睡眠中游速也不会减慢。
海豹和海豚不同,它们既可以生活在水下,又可以爬到岸上活动。如果在地面睡觉,就和陆地动物相似;如果在水下睡觉,每做一次呼吸,就要醒来一次。这就是说,它们是在呼吸的间隙抽空睡觉。
海狗也是一种既能生活在海洋、又能生活在陆地的海洋动物。它们在陆地上睡觉时,可和陆地动物睡得一样甜美;在水下时,就和阿佐基海豚一样用大脑两半球轮流睡觉。
产于北太平洋海岸的海獭,会在海边用海草结成一张"床",围成椭园形,睡觉时就把身体藏在中间,腹部朝天。如果它对在某个地方睡觉感到满意,就会每天都到那个地方去睡。
生长在北冰洋中的海象,睡觉更与众不同。它睡觉时不是平卧,而是垂直在水中,头部则露在水面上。
令人喜欢的海狸,一般在白天睡觉,睡时仰着头,有时还磨牙。尤其是小海狸,睡觉最有趣,它们并排着睡,有的还把小脚掌枕在头下。
为什么说海洋是矿物的聚宝盆?
海洋里不仅蕴藏着丰富的石油,而且还是各种矿物的聚宝盆。现在从海底采出的石油已超过世界石油总产量的30%,可见其重要地位。海洋的矿藏也正在改变世界矿产的分布图。1991年初,联合国决定我国为开采海底矿藏的先驱国家,并划定夏威夷东南海域为我国的开采地区,因此我们更有必要了解这一聚宝盆,了解海底到底有哪些矿藏,它们是怎样分布的。
根据目前掌握的资料,海底的矿藏大致上可分为三大类:锰团块、热水矿床、钻壳。
锰团块,又叫猛结核、锰矿球,是以锰为主的多金属结核。它广泛分布在世界各大洋水深2000米至6000米处的洋底表层,以太平洋蕴藏量最多,估计为1.7万亿吨,占全世界蕴藏总量约3万亿吨的一半多。
锰团块在海底已度过了慢长岁月,由于存在环境的不同而拥有不同的尺寸和外形,其直径多数处于1至25厘米之间,重量有的可达几十公斤以上,它们像卵石一样堆积在深海的洋底。
据推算,海洋中全部锰团块含有的各种金属,其储量远远超过陆地上的储量。更重要的是, 锰团块是一种再生沉积矿物,它的储量还在不断增加,仅太平洋每年便可增长1000万吨。
尽管全世纪各大洋都分布有锰团块,但以赤道北面东太平洋海底的锰团块分布面积最广,富集度最高,而且金属品位也比较高。其中,从墨西哥西南到夏威夷南部的一条长达4600公里 ,宽900公里的海域里,海底表层密密麻麻布满了锰团块,平均密度为每平方米10公斤以上,镍、铜、钴的总品位超过3%,可谓遍地都是宝。
这一带海域地形比较平坦,海况条件也比较好,有利于开采作业,是目前各国进行科学研究和开采试验的主要场所。联合国分配给我国开采的海域也位于这一地区。
另外,南亚的西南海域、印度洋东部海域也是蕴藏锰团块较为丰富的地区。过去人们曾认为金属品位高的锰团块只富集于远离陆地的深海海底,但近来调查勘探表明,南太平洋一些小岛周围的海域里也蕴藏着数量可观的锰团块。
现在一般利用采矿船来开采锰团块。由装有深海电视的采矿机在海底收集锰团块,通过软管抽气像吸尘器一样,把锰团块经软管连续地吸到地面上的采矿能中,每天采矿量可达3000吨 。
海底地貌
如同陆地上一样,海底世界有高山,有平原,还有深沟峡谷。这个世界并不象人们所想像的或是象表面看起来那样平缓和宁静,相反却是地球上最活跃最动荡不安的地带。地震火山活动频繁,形成高山峻岭,只不过一切都掩盖在海水之下进行而已。
海底地形与陆地一样,有山岭、高原、盆地、丘陵等形态。海底地貌按洋底起伏的形态特征,大致可分为大陆架、大陆坡和大洋底三部分。大陆架是指陆地向海洋延伸的平浅海底。大陆坡是大陆架 与深海底之间较陡的陡坡。大洋底是海洋主要部分,有海岭、海脊、海底高原等正地形;也有海沟、海槽、深海盆地等负地形。
海盆:大洋的主体部分。洋底下凹并为海岭或海底隆起所分割的盆地。面积大,外形呈圆形或椭圆形,底部较平坦,深度3,000-6,000米(大多为4,000-5,000米)。覆盖着深海沉积,以化学沉积和生物沉积为主。
海底山脉:又称“海脊”或“海岭”。深海底部狭长绵亘的高地。长度可达上万公里,宽1,000-3,000公里,高2,000-4,000米。个别山峰出露水面成为岛屿,如此大西洋的亚速尔群岛,南大西洋的阿森松岛等。大西洋中央海底山脉,纵贯南北,山脉走向与大洋轮廓一致,呈S形。太平洋海岭分布在中部,南北绵延1万公里以上。印度洋海岭分布呈人字形。
海沟:大洋中水深超过6,000米的狭长陷落地带。长可达数千公里,宽一般在百公里左右,两侧坡度陡急。海沟常与海岭相伴分布。海岭出露水面成为岛屿,在太平洋西部和北部,一系列岛屿呈弧形,成岛弧。海沟一般在岛弧的凸面,邻近大陆沿海山脉或紧靠岛屿,大洋的边缘上。海沟多数分布在太平洋,尢以西海岸最著名。世界上最深海沟是西太平洋马里亚纳群岛东南侧的马里亚纳海沟,深达11,034米,长2,550公里,平均宽度70公里。海沟分布地区是地壳最不稳定地带,火山、地震频繁。象山港在浙江省象山县以北,自东北向西南,伸入陆地内部,长约50公里,宽仅6公里。港外有六横岛为屏障,形势险要,为优良港湾之一。
C. 海洋的故事(50字)
汹涌的浪潮,后浪推前浪。声似雷霆万钧,势如万马奔腾。大海霎时间变成了无边无内际的战场,海风吹着尖厉的“号容角”,海浪似乎是千百个英勇的战士,向海岸猛烈地进攻着,发出隆隆呼喊。岸上千斤重的巨石,只要被潮水轻轻一拂,就仿佛一下子“沉”到“海底”去了。一排排浪撞在岸上,溅起一片片浪花。
D. 以海洋为主题的小故事。
额?
海的女儿?
还是南方比较流行的妈祖?
楼主也不标清楚,到底要用来干什么,一点方向感都没有呢。
E. 海洋的故事
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