| This stretch of the Monnow river in Herefordshire looks pristine. Oh. I'm all tangled up. But the anglers here are being taught how to read the warning signs below the water's surface. This is a caddisfly, a cased caddis. I've gone back to school with a group of local anglers who are finding out it's not fish but riverflies that are the key. Head teacher for the day is museum research entomologist Steve Brooks. Now actually, I hope some of you will take it a little bit further than this and get interested in the insects in themselves. Maybe you'll even spend more time looking at the insects than fishing. These larvae are the first things to be hit when the river is polluted. Fewer larvae means fewer fish, and that of course means unhappy fishermen. Well, anglers have got a vested interest in the rivers. They spend a lot of money on their kit, and they spend a lot of money on their licence fees. And so if the fishing isn't any good, they're wanna know why. And they're on the river a lot as well, and they spend half their lives on the river, so they're ideal for having a look at what insects are there and working out what the water quality's like. | |
| 曼诺河在赫里福德郡的这一带流域，还保留着原始的状态，都缠在一起了。但是这一水域的垂钓者知道，如何读懂水面下的警示。 这是石蛾，又称毛翅目。 我和一群当地的垂钓者，一起回到学校。他们发现问题的关键不是鱼类，而是河蝇。今天的主讲教师是博物馆昆虫学家史蒂夫·布鲁克斯。我希望你们的工作能够更深入一些，对昆虫世界产生浓厚的兴趣。或许钓鱼之外，你们会花更多时间观察昆虫。当河水受到污染后，这些幼虫首当其冲，幼虫数量减少导致鱼类数量减少，当然渔民也忧心忡忡。在捕鱼业中，渔民有既得利益，他们的装备很昂贵，捕鱼执照费用也不菲。所以如果钓不到鱼，他们想知道原因，他们常常守在河边，几近半生，所以要查明河里昆虫种类，调查河水质量，他们就是理想人选。 |
| This stretch of the Monnow river in Herefordshire looks pristine. Oh. I' m all tangled up. But the anglers here are being taught how to read the warning signs below the water' s surface. This is a caddisfly, a cased caddis. I' ve gone back to school with a group of local anglers who are finding out it' s not fish but riverflies that are the key. Head teacher for the day is museum research entomologist Steve Brooks. Now actually, I hope some of you will take it a little bit further than this and get interested in the insects in themselves. Maybe you' ll even spend more time looking at the insects than fishing. These larvae are the first things to be hit when the river is polluted. Fewer larvae means fewer fish, and that of course means unhappy fishermen. Well, anglers have got a vested interest in the rivers. They spend a lot of money on their kit, and they spend a lot of money on their licence fees. And so if the fishing isn' t any good, they' re wanna know why. And they' re on the river a lot as well, and they spend half their lives on the river, so they' re ideal for having a look at what insects are there and working out what the water quality' s like. | |
| man nuo he zai he li fu de jun de zhe yi dai liu yu, hai bao liu zhe yuan shi de zhuang tai, dou chan zai yi qi le. dan shi zhe yi shui yu de chui diao zhe zhi dao, ru he du dong shui mian xia de jing shi. zhe shi shi e, you cheng mao chi mu. wo he yi qun dang di de chui diao zhe, yi qi hui dao xue xiao. ta men fa xian wen ti de guan jian bu shi yu lei, er shi he ying. jin tian de zhu jiang jiao shi shi bo wu guan kun chong xue jia shi di fu bu lu ke si. wo xi wang ni men de gong zuo neng gou geng shen ru yi xie, dui kun chong shi jie chan sheng nong hou de xing qu. huo xu diao yu zhi wai, ni men hui hua geng duo shi jian guan cha kun chong. dang he shui shou dao wu ran hou, zhei xie you chong shou dang qi chong, you chong shu liang jian shao dao zhi yu lei shu liang jian shao, dang ran yu min ye you xin chong chong. zai bu yu ye zhong, yu min you ji de li yi, ta men de zhuang bei hen ang gui, bu yu zhi zhao fei yong ye bu fei. suo yi ru guo diao bu dao yu, ta men xiang zhi dao yuan yin, ta men chang chang shou zai he bian, ji jin ban sheng, suo yi yao cha ming he li kun chong zhong lei, diao cha he shui zhi liang, ta men jiu shi li xiang ren xuan. |
| This stretch of the Monnow river in Herefordshire looks pristine. Oh. I' m all tangled up. But the anglers here are being taught how to read the warning signs below the water' s surface. This is a caddisfly, a cased caddis. I' ve gone back to school with a group of local anglers who are finding out it' s not fish but riverflies that are the key. Head teacher for the day is museum research entomologist Steve Brooks. Now actually, I hope some of you will take it a little bit further than this and get interested in the insects in themselves. Maybe you' ll even spend more time looking at the insects than fishing. These larvae are the first things to be hit when the river is polluted. Fewer larvae means fewer fish, and that of course means unhappy fishermen. Well, anglers have got a vested interest in the rivers. They spend a lot of money on their kit, and they spend a lot of money on their licence fees. And so if the fishing isn' t any good, they' re wanna know why. And they' re on the river a lot as well, and they spend half their lives on the river, so they' re ideal for having a look at what insects are there and working out what the water quality' s like. | |
| màn nuò hé zài hè lǐ fú dé jùn de zhè yí dài liú yù, hái bǎo liú zhe yuán shǐ de zhuàng tài, dōu chán zài yì qǐ le. dàn shì zhè yī shuǐ yù de chuí diào zhě zhī dào, rú hé dú dǒng shuǐ miàn xià de jǐng shì. zhè shì shí é, yòu chēng máo chì mù. wǒ hé yī qún dāng dì de chuí diào zhě, yì qǐ huí dào xué xiào. tā men fā xiàn wèn tí de guān jiàn bú shì yú lèi, ér shì hé yíng. jīn tiān de zhǔ jiǎng jiào shī shì bó wù guǎn kūn chóng xué jiā shǐ dì fū bù lǔ kè sī. wǒ xī wàng nǐ men de gōng zuò néng gòu gēng shēn rù yī xiē, duì kūn chóng shì jiè chǎn shēng nóng hòu de xìng qù. huò xǔ diào yú zhī wài, nǐ men huì huā gèng duō shí jiān guān chá kūn chóng. dāng hé shuǐ shòu dào wū rǎn hòu, zhèi xiē yòu chóng shǒu dāng qí chōng, yòu chóng shù liàng jiǎn shǎo dǎo zhì yú lèi shù liàng jiǎn shǎo, dāng rán yú mín yě yōu xīn chōng chōng. zài bǔ yú yè zhōng, yú mín yǒu jì dé lì yì, tā men de zhuāng bèi hěn áng guì, bǔ yú zhí zhào fèi yòng yě bù fěi. suǒ yǐ rú guǒ diào bú dào yú, tā men xiǎng zhī dào yuán yīn, tā men cháng cháng shǒu zài hé biān, jī jìn bàn shēng, suǒ yǐ yào chá míng hé lǐ kūn chóng zhǒng lèi, diào chá hé shuǐ zhì liàng, tā men jiù shì lǐ xiǎng rén xuǎn. |
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