褐鲑鱼也各有性格-凯发k8官网

褐鲑鱼也各有性格
文章来源:未知 文章作者:meng 发布时间:2010-12-07 03:30 字体: [ ] 
(单词翻译:双击或拖选)

personality is not just a feature unique to humans and pets. scientists at the university of gothenburg (sweden) have revealed that also brown 1(褐鲑鱼) have individual characters and show different 2. researcher bart adriaenssens from the department of 3 at the university of gothenburg has for many years studied the behaviour of 4(青少年的) trout from watercourses(河道,水道) on the west coast of sweden.

"my results show that it are not just humans and other mammals that exhibit personality. also brown trout differ among each other in their level of 5 and react differently to changes in their surroundings", says bart adriaenssens. "the release of a novel object in the 6(水族馆,养鱼池) causes very different reactions. some individuals will immediately explore this object, whereas others will rather hide in a corner and try to avoid every contact."

"but it are not always the bold and aggressive fish who are most successful. when we marked trout individually and released them back in the wild, it were shy trout who grew most rapidly."

which fish personality works best may also depend on the environment: if there is little protection available, as is the case, for example, in a tank at an aquaculture facility, large and bold fish are likely able to grab most of the food. but in the more complex environment of a stream in the wild, shy individuals can be more successful.

the question of why animals have personalities 7 still to be answered. "if a certain personality proves to work well, and individuals with that personality grow rapidly, survive in greater numbers and have more offspring, we would expect all individuals to behave according to that personality. this is not the case, however, and there is still a lot of work to be done in this area to explain why", says bart adriaenssens.



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1 pkdzs     
n.鳟鱼;鲑鱼(属)
参考例句:
  • thousands of young salmon and trout have been killed by the pollution.成千上万的鲑鱼和鳟鱼的鱼苗因污染而死亡。
  • we hooked a trout and had it for breakfast.我们钓了一条鳟鱼,早饭时吃了。
2 ylozsg     
n. 诽谤,(对某人容貌、性格等所进行的)人身攻击; 人身攻击;人格, 个性, 名人( personality的名词复数 )
参考例句:
  • there seemed to be a degree of personalities in her remarks.她话里有些人身攻击的成分。
  • personalities are not in good taste in general conversation.在一般的谈话中诽谤他人是不高尚的。
3 efjwz     
n.动物学,生态
参考例句:
  • i would like to brush up my zoology.我想重新温习一下动物学。
  • the library didn't stock zoology textbooks.这家图书馆没有动物学教科书。
4 okey2     
n.青少年,少年读物;adj.青少年的,幼稚的
参考例句:
  • for a grown man he acted in a very juvenile manner.身为成年人,他的行为举止显得十分幼稚。
  • juvenile crime is increasing at a terrifying rate.青少年犯罪正在以惊人的速度增长。
5 wkjyf     
n.进攻,侵略,侵犯,侵害
参考例句:
  • so long as we are firmly united, we need fear no aggression.只要我们紧密地团结,就不必惧怕外来侵略。
  • her view is that aggression is part of human nature.她认为攻击性是人类本性的一部份。
6 gvszl     
n.水族馆,养鱼池,玻璃缸
参考例句:
  • the first time i saw seals was in an aquarium.我第一次看见海豹是在水族馆里。
  • i'm going to the aquarium with my parents this sunday.这个星期天,我要和父母一起到水族馆去。
7 1kmzty     
n.剩余物,残留物;遗体,遗迹
参考例句:
  • he ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • the remains of the meal were fed to the dog.残羹剩饭喂狗了。
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