opm-playboy 发表于 2007-12-2 00:21:00

水母入侵

http://news.nationalgeographic.com/news/2006/01/images/060119_jellyfish.jpg

For over 500 million years, the jellyfish has survived in our oceans. Today, global warming and pollution may be contributing to a population explosion, as billions of these
sometimes venomous creatures increasingly swarm around our beaches and shorelines. And though they have no bones, blood or brain, some jellyfish are armed with a
deadly arsenal unlike any other on the planet. Explorer dissects the fascinating physiology of this living fossil.

5亿年前,水母已从我们的海洋里存活。今天,全球暖化和人口增长引发的污染,这种有毒的生物成千上万地包围我们的海滩和海岸线。
它们没有骨架、没有血液和脑袋,有些水母还配备了我们这个星球与别不同的致命武器。如何剖析这种迷人的古生物之迷。

Pitting two hands against thousands of stinging tentacles, a diver attaches a tracking device to a giant Nomura's jellyfish off the coast of Japan on October 4, 2005.

2005年10月4日日本海洋研究人员在日本海岸进行对福川水母的研究,他们把声纳探测器装在水母身上,跟踪它们离开日本海岸的活动。

Since last summer, Japanese waters have been inundated with the massive sea creatures, which can grow 6.5 feet (2 meters) wide and weigh up to 450 pounds (220 kilograms).

从当年夏季开始,日本水域已被这些海洋生物重重包围,它们能长到2米宽而重量达220公斤。

Though the jellyfish are more common in Chinese and Korean waters, their numbers have grown a hundredfold in some areas off Japan, causing a crisis in the local
fishingindustry.

尽管这些水母与中国、韩国水域的相似,但他们以百倍的速度在日本激增,造成当地捕渔业的危机。

The invertebrates are choking fishing nets and poisoning the catch with their toxic stingers, fishers say. And although reports of serious human injury are rare, there are
records of people dying from the creature's noxious sting.

The invasion has prompted a series of studies by the Japanese government to research the animal, whose mating and migration habits are poorly understood.

Last month, Japanese scientists speculated that the jellyfish are drifting from China's Yangtze River Delta, where unusually heavy rains may have created a flow that is pushing the jellyfish flotilla to Japan.

Another theory suggests that seas heated by global warming are better suited for breeding, turning the Nomura's otherwise modest numbers into an armada.

As the research continues, Japanese fishers continue to grapple with another issue: What to do with all the jellyfish they've caught? So far, resourceful anglers have turned their unwanted catch into crab food, fertilizer, and novelty snacks—served dried and salted.

昨晚香港亚视国际台播放了NGC的Jellyfis Invasion在网上只能找到这个小短片 http://uploadingit.com/files/354099_dxa0j/Jellyfish%20Invasion.mpg

[ 本帖最后由 opm-playboy 于 2007-12-2 20:57 编辑 ]

BiscuiT 发表于 2007-12-2 01:03:47

http://photo14.yupoo.com/20071202/010311_1150160863_jmdkubxg.jpg

http://photo14.yupoo.com/20071202/010311_1632298295_qckjznlh.jpg

BiscuiT 发表于 2007-12-2 08:26:04

“威猛而致命的水母也有天敌,一种海龟就可以在水母的群体中自由穿梭,轻而易举地用嘴扯断它们的触顿,使其只能上下翻滚,最后失去抵抗能力,成为海龟的一顿“美餐”。”

又不说哪种。。。你个百毒百科。。。

全球现存海龟种类共有2科6属7种,这两科分别为蠵龟科和革龟科。

# 革龟(Dermochelys coriacea)

    * 前鳍肢长1米以上且无爪,体色为黑或深蓝色,具有白色小点,背甲后端较尖,成龟重约500公斤,背甲长180厘米。
    * 主食为水母。

BiscuiT 发表于 2007-12-2 08:28:24

此消彼长,水母激增必然是天敌锐减

szterry 发表于 2007-12-2 09:15:25

真长见识了, 原来水母有这么大的???

BiscuiT 发表于 2007-12-2 14:04:42

体形较大的霞水母的巨伞直径可达2米,下垂的触手长达20~30米。
1865年,在美国麻萨诸塞州海岸,有一只霞水母被海浪冲上了岸,它的伞部直径为2.28米,触手长36米。把这个水母的触手拉开,从一条触手尖端到另一条触手的尖端,竟有74米长。因此,可以说霞水母是世界最长的动物了。

Julian_Yuen 发表于 2007-12-2 18:48:41

回复 #6 BiscuiT 的帖子

看到帖子的第一反应是:发水帖很多的人到本版来捣乱了......orz

PS:74m,呃,跟最大的乌贼比比~

BiscuiT 发表于 2007-12-2 21:30:49

回复 #7 Julian_Yuen 的帖子

楼不在高,有水则灵~

根据《吉尼斯世界纪录大全》记载,人们有史以来发现的最大的乌贼长18.3米(包括触须),重1吨,它的尸体在岸上被发现。科学家发现巨型乌贼喙的大小与其身体大小有一定的关系,由此推测一般成年巨型乌贼可长到6~12米,重50~300公斤。

http://photo15.yupoo.com/20071202/212948_113930240_lyizfmzy.jpg

Julian_Yuen 发表于 2007-12-2 22:33:02

回复 #8 BiscuiT 的帖子

科幻电影里面那种,号称说深海有超级大的,大王乌贼?

http://baike.baidu.com/view/38415.htm

Julian_Yuen 发表于 2007-12-2 22:34:07

原帖由 BiscuiT 于 2007-12-2 01:03 发表 http://www.equn.com/forum/images/common/back.gif
http://photo14.yupoo.com/20071202/010311_1150160863_jmdkubxg.jpg

http://photo14.yupoo.com/20071202/010311_1632298295_qckjznlh.jpg


结合央视与华南虎的事情来看,这个不知道是否临时工所为。

gengli00 发表于 2007-12-3 13:39:06

我也看了那期节目,而且,水母可能是现今进化最久远的生物,它可能见过一切生物的起源,覆灭,新物种的诞生。当他受到伤害或濒临死亡时,会排出大量的精子和卵子,及时繁衍了下一代。如果哪一天海洋里只有水母存在,请不要惊讶,他的毒液是当今最复杂的神经毒液,集多种功能于一身。而且它可以在万米深的海沟与水面之间自由往来,无拘无束。而这一切全仰仗人类将全球气候不断抬升,海水温度也不断抬升的结果!

BiscuiT 发表于 2007-12-8 22:46:46

回复 #9 Julian_Yuen 的帖子

客官,你点的菜来了~

http://photo14.yupoo.com/20071208/224535_1468588659_wrfpzzwd.jpg

Julian_Yuen 发表于 2007-12-9 18:36:46

回复 #12 BiscuiT 的帖子

放这个在家里的话,夜里会吓死小偷的吧

BiscuiT 发表于 2007-12-9 19:01:53

回复 #13 Julian_Yuen 的帖子

谁说~这么好吃的东西真怕引来小偷!

http://photo14.yupoo.com/20071209/190038_1834896057_dfricdem.jpg

gengli00 发表于 2007-12-10 17:48:13

韩国有生吃这个的习惯,而且是需要很大勇气的,一旦不慎,它的触角可能会吸在你的喉咙上,导致窒息而死!非常恐怖的!
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