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    Current page location: Home Page > Article > A Catfish that eats WOOD? 吃木頭的鯰魚
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    chery chen
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    A Catfish that eats WOOD? 吃木頭的鯰魚
    Browse volume:229 | Reply:0 | Release time:2010-10-16 16:01:22

    ?A Catfish that eats WOOD? 吃木頭的鯰魚

    We all know that termites(白蟻)eat wood. But a catfish(鯰魚)? That’s right. Scientists recently captured the first live specimens of a wood-eating armored(披甲的)catfish in Peru, a species only known previously from dried skins from fish that the indigenous(本地的)people had shot and skinned. Having live specimens allows scientists to do genetic analyses and more fully study and document the species. And how - what a weird creature! Catching a fish that doesn’t eat so-called traditional fish food proved challenging. You can’t use hook and line, since they wouldn’t be attracted to a worm or spinner. “We use cast nest in areas with rapids(急流)with fast water where there are rocky outcrops (巖石)露頭and log jams(原木漿),” explains Petry. “That seems to be the preferred habitat(棲息地)of the wood eating catfish. Gillnets(以刺網(wǎng)捕魚)are set along the river channels over night to capture any species that moves around.” Turns out there are actually ten wood-eating catfish of the genus Panaque, which this new species is also a member of. All have spoon-shaped teeth that allow them to scrape wood off of rotting logs and wood in rivers and all live within the Amazon, though some are more widely distributed and others live only in extremely limited areas. The Amazon and its tributaries(支流)have an incredibly high biodiversity(生物多樣性)of freshwater fishes. Over 4,700 species are known in South America, and scientists discover an average of 100 new species per year. As quickly as they're discovered, many are disappearing - recall last October's post, "The untold loss of river mega-fish, an untold story"? Have you been to the Amazon rainforest? What do you think of these mega-fish? Have any animals with weird feeding habits surprised you?

    【Notes】

    Indigenous:adj. 本地的, 土生土長的, 天生的 Indians were the indigenous inhabitants of America. ? 印第安人是美洲的土著居民。 The indigenous population was soon displaced by the settlers. ? 沒過多久,外來移民就把當?shù)厝粟s出了家園。 ? Tributaries:adj. 納貢的, 從屬的, 補助的n. 納貢者, 屬國, 支流 A tributary colony. ? 進貢的殖民地 There was one street apart from a tributary road near the end of the village. ? 除了村子盡頭的岔道外,還有一條大路。 ? Biodiversity:n. 生物多樣性 However, the frequent human activities such as denudation, over-hunting, pollution, fire and so on have caused vast loss of biodiversity, and are reducing the biodiversity greatly. 然而目前由于人類劇烈的活動干擾如濫砍濫伐、濫捕濫獵、環(huán)境污染、火災、墾荒等,生物多樣性喪失的速率怵目驚心!
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